Search found 181 matches

by forum_admin
Fri May 25, 2018 12:48 am
Forum: Hadoop and Big Data
Topic: Exception in thread "main" java.lang.RuntimeException: org.apache.tez.dag.api.SessionNotRunning: TezSession has already shutdown.
Replies: 1
Views: 2

Exception in thread "main" java.lang.RuntimeException: org.apache.tez.dag.api.SessionNotRunning: TezSession has already shutdown.

avirani@host:~$ hive 2018-05-25 00:42:00,914 WARN [main] conf.HiveConf: HiveConf of name hive.custom-extensions.root does not exist log4j:WARN No such property [maxFileSize] in org.apache.log4j.DailyRollingFileAppender. Logging initialized using configuration in file:/etc/hive/2.6.2.0-205/0/hive-log...
by forum_admin
Sun Feb 18, 2018 5:15 am
Forum: Entrance Exams after 12th, Graduation and for admission outside and inside the India
Topic: is Ayurvedic doctor degrees like BAMS accepted in USA?
Replies: 2
Views: 100

Re: is Ayurvedic doctor degrees like BAMS accepted in USA?

I am Ayrurvedic Doctor and move to USA in 70's. In my case I was pregnant so my husband”s long hours of work and my working long hours Was putting stress in the marriage, Also being Vegetarian(which was unheard of at that time)so we had to cook Everyday from few beans and Vegetable that were availab...
by forum_admin
Wed Feb 14, 2018 7:00 pm
Forum: Hadoop and Big Data
Topic: FAILED - RETRYING: Waiting for ambari-agents to register (200 retries left).
Replies: 3
Views: 79

Re: FAILED - RETRYING: Waiting for ambari-agents to register (200 retries left).

I think Amazon EC2 instances open ports on ipv6. You may need to open it on ipv4 as ipv6 causes register problem for amber-agent.
by forum_admin
Wed Feb 07, 2018 7:43 pm
Forum: Hadoop and Big Data
Topic: when calling the DescribeLoadBalancers operation: Signature expired
Replies: 1
Views: 71

Re: when calling the DescribeLoadBalancers operation: Signature expired

it may be time difference. compare your current time with actual time on google. setup new time you will be fine

sudo service vboxadd-service stop
sudo date -s "07 FEB 2018 18:35:00"
sudo service vboxadd-service start
by forum_admin
Sun Feb 04, 2018 7:53 am
Forum: Hadoop and Big Data
Topic: I installed maven scala plugin but it don't show in maven project
Replies: 1
Views: 83

I installed maven scala plugin but it don't show in maven project

I installed maven scala plugin but it don't show scala-archetype in maven project while create maven project.

I used below url for Scala maven plugin and taken reference from http://scala-ide.org/docs/tutorials/m2eclipse/.

http://alchim31.free.fr/m2e-scala/update-site/
by forum_admin
Sat Feb 03, 2018 9:33 pm
Forum: Entrance Exams after 12th, Graduation and for admission outside and inside the India
Topic: How much difficult to start CA and BCOM together(simultaneously)? How much time do you spent on CA daily?
Replies: 1
Views: 91

Re: How much difficult to start CA and BCOM together(simultaneously)? How much time do you spent on CA daily?

Usually student don't start b.com with CA because the reasons behind is that some time CA exam and b.com exam both come simultaneously. in that situation student can not perform very well in both exam and as your knowledge CA is the professional course.so,it is very difficult to study. At that time ...
by forum_admin
Sat Feb 03, 2018 9:31 pm
Forum: Entrance Exams after 12th, Graduation and for admission outside and inside the India
Topic: Which colleges allow to do CA while you are doing BCOM?
Replies: 1
Views: 73

Re: Which colleges allow to do CA while you are doing BCOM?

In my city no college don't stop us for doing this professional course with b.Com because they know very well how the reputation and useful this course in the business for further 10 years.

so,they can't stop us to do this and some of them inspire to do CA with BCom.
by forum_admin
Wed Jan 24, 2018 8:29 pm
Forum: Hadoop and Big Data
Topic: KrbException: Fail to create credential. (63) - No service creds for hive or impala jdbc connectivity
Replies: 2
Views: 182

Re: KrbException: Fail to create credential. (63) - No service creds for hive or impala jdbc connectivity

It looks like you don't have proper kerberos ticket to access the server. If you have created valid ticket than you can try below things in your java code. sun.security.krb5.debug will give you detail logs. If you have proper ini file than by just giving path to java.security.krb5.conf param will wo...
by forum_admin
Sun Jan 21, 2018 6:39 am
Forum: Do You Know?
Topic: any ebook readers allow copy and paste
Replies: 2
Views: 128

Re: any ebook readers allow copy and paste

I don't think one should do copy paste. Yes decent way is the put the details of author and article in your blog if you take some quote. In digital world people think about reputation as well as money. so take care legal term. Digital rights management is a way of controlling where you read and what...
by forum_admin
Wed Jan 17, 2018 4:36 am
Forum: Hadoop and Big Data
Topic: SASL negotiation failure javax.security.sasl.SaslException: GSS initiate failed
Replies: 2
Views: 118

Re: SASL negotiation failure javax.security.sasl.SaslException: GSS initiate failed

thanks setting javax.security.auth.useSubjectCredsOnly=false works.
by forum_admin
Wed Jan 17, 2018 3:48 am
Forum: Hadoop and Big Data
Topic: SASL negotiation failure javax.security.sasl.SaslException: GSS initiate failed
Replies: 2
Views: 118

SASL negotiation failure javax.security.sasl.SaslException: GSS initiate failed

Hive jdbc connectivity for AWS kerberos giving below error: ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console. Set system property 'org.apache.logging.log4j.simplelog.StatusLogger.level' to TRACE to show Log4j2 internal initializat...
by forum_admin
Sat Jan 13, 2018 10:21 pm
Forum: Indian History
Topic: who is Vasco-Da-Gama?
Replies: 1
Views: 182

Re: who is Vasco-Da-Gama?

Vasco-Da-Gama is a native of Portugal.He discovered the sea route to India. He called the ‘Cape of Good Hope’ in South Africa and reached the Port of Calicut on 1498 May 22 after crossing the Indian Ocean. The then ruling king of Calicut, Zamorin gave him permission to the Portuguese to trade. The P...
by forum_admin
Sat Jan 13, 2018 10:19 pm
Forum: Indian History
Topic: who is Vasco-Da-Gama?
Replies: 1
Views: 182

who is Vasco-Da-Gama?

who is Vasco-Da-Gama?
by forum_admin
Fri Jan 12, 2018 11:45 pm
Forum: Hadoop and Big Data
Topic: java.sql.SQLException: [Simba][ImpalaJDBCDriver](500151) Error setting/closing session: Open Session Error.
Replies: 1
Views: 306

Re: java.sql.SQLException: [Simba][ImpalaJDBCDriver](500151) Error setting/closing session: Open Session Error.

Yep. added SSL=1.

I am able to connect kerberos locally in MAC. below is my url.

impala.db.server.url=jdbc:impala://localhost:21050;AuthMech=1;SSL=1;KrbRealm=TEST.COM;KrbHostFQDN=localhost;KrbServiceName=impala;LogLevel=6;LogPath=/Users/avtui/impalalog
by forum_admin
Fri Jan 12, 2018 11:34 pm
Forum: Hadoop and Big Data
Topic: java.sql.SQLException: [Simba][ImpalaJDBCDriver](500151) Error setting/closing session: Open Session Error.
Replies: 1
Views: 306

java.sql.SQLException: [Simba][ImpalaJDBCDriver](500151) Error setting/closing session: Open Session Error.

impala jdbc error for kerberos in Mac 2018/01/12 15:28:11 Got sql exception java.sql.SQLException: [Simba][ImpalaJDBCDriver](500151) Error setting/closing session: Open Session Error. at com.cloudera.impala.hivecommon.api.HS2Client.openSession(HS2Client.java:987) at com.cloudera.impala.hivecommon.ap...
by forum_admin
Sun Jan 07, 2018 7:39 pm
Forum: Visa/Immigration, legal and official process in USA and Canada
Topic: H4 Visa EAD 2018 News – Lawsuit Status,
Replies: 2
Views: 96

Re: H4 Visa EAD 2018 News – Lawsuit Status,

I think it is likely that the USA will stop giving new work authorization to spouses (certain H-4 spouses were eligible for EAD : means spouses of approved I-140) and dependents in H-4 status. We are not sure that work authorization will be allowed to continue working until the date on their Employm...
by forum_admin
Thu Jan 04, 2018 6:12 am
Forum: Hadoop and Big Data
Topic: Exception in thread "main" java.lang.NoSuchMethodError: org.apache.spark.internal.config.TypedConfigBuilder.checkValue
Replies: 0
Views: 395

Exception in thread "main" java.lang.NoSuchMethodError: org.apache.spark.internal.config.TypedConfigBuilder.checkValue

DBConn.scala:18 my line 18 is: val session = SparkSession.builder().master("local").appName("dbConn").enableHiveSupport().getOrCreate() log4j:WARN No appenders could be found for logger (org.apache.hadoop.util.Shell). log4j:WARN Please initialize the log4j system properly. log4j:...
by forum_admin
Sat Dec 30, 2017 5:09 pm
Forum: Hadoop and Big Data
Topic: org.apache.hadoop.hive.ql.metadata.HiveException(java.util.concurrent.ExecutionException: java.lang.NullPointerException)'
Replies: 2
Views: 92

org.apache.hadoop.hive.ql.metadata.HiveException(java.util.concurrent.ExecutionException: java.lang.NullPointerException)'

Hive insert query give in below error: Table A: it is external table and data is on S3 in parquet format Table B: local table in text format SET mapred.max.split.size=1073741824; SET dfs.blocksize=256435456; SET parquet.block.size=256435456; set hive.vectorized.execution.enabled=true; set hive.enfor...
by forum_admin
Tue Dec 19, 2017 4:52 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: What is the use of PreDef in Scala?
Replies: 1
Views: 235

Re: What is the use of PreDef in Scala?

- The Predef object provides definitions that are accessible in all Scala compilation units without explicit qualification. - defined in scala package as “scala.PreDef”. It is an utility object. It defines many utility methods as shown below: Console IO (print,println etc) Collection utility methods...
by forum_admin
Tue Dec 19, 2017 4:49 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: What is the use of PreDef in Scala?
Replies: 1
Views: 235

What is the use of PreDef in Scala?

What is the use of PreDef in Scala?
by forum_admin
Tue Dec 19, 2017 4:16 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: Difference between var, val, and def in Scala programming
Replies: 3
Views: 107

Re: Difference between var, val, and def in Scala programming

Val and var are the two keywords used to define variables in Scala. Var keyword is just similar to variable declaration in Java whereas Val is little different. Once a variable is declared using Val the reference cannot be changed to point to another reference. This functionality of Val keyword in S...
by forum_admin
Tue Dec 19, 2017 4:15 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: advantage of using Scala over other functional programming languages
Replies: 1
Views: 93

Re: advantage of using Scala over other functional programming languages

- Scala meaning Scalable Language, its high scalable, maintainability, productivity and testability features make it advantageous to use Scala. - Scala is a type-safe JVM language that incorporates both object oriented and functional programming into an extremely concise, logical, and extraordinaril...
by forum_admin
Tue Dec 19, 2017 4:10 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: advantage of using Scala over other functional programming languages
Replies: 1
Views: 93

advantage of using Scala over other functional programming languages

what are the advantagse of using Scala over other functional programming languages?
by forum_admin
Tue Dec 19, 2017 4:07 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: Difference between var, val, and def in Scala programming
Replies: 3
Views: 107

Re: Difference between var, val, and def in Scala programming

var x = 4 // using var as I need to change it to 3 later val sq = x*x // evaluates right now x = 6 // no effect! sq is already evaluated println(sq) this will print 16 and not 36! val (even var) is evaluated immediately and assigned. Now change val to def.. it will print 36! Def is a function call....
by forum_admin
Tue Dec 19, 2017 4:03 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: Difference between var, val, and def in Scala programming
Replies: 3
Views: 107

Re: Difference between var, val, and def in Scala programming

It is common interview question in Scala: var and val keyword is used to declare variables in Scala there is a subtle difference between them. A var is a variable. It’s a mutable reference to a value. Since it’s mutable, its value may change through the program lifetime. On the other hand, val keywo...
by forum_admin
Mon Dec 18, 2017 7:59 pm
Forum: Hadoop and Big Data
Topic: Impala out of memory in performance cluster
Replies: 3
Views: 137

Re: Impala out of memory in performance cluster

most of the time "Memory Limit Exceeded" errors can be due to table/column stats not being collected, leading to the wrong join distribution. Once stats are gathered, you may find queries take significantly less memory to execute. Many workloads may run perfectly fine with significantly le...
by forum_admin
Mon Dec 18, 2017 7:58 pm
Forum: Hadoop and Big Data
Topic: Impala out of memory in performance cluster
Replies: 3
Views: 137

Re: Impala out of memory in performance cluster

Memory - 128 GB or more recommended, ideally 256 GB or more. If the intermediate results during query processing on a particular node exceed the amount of memory available to Impala on that node, the query is cancelled. Note that because the work is parallelized, and intermediate results for aggrega...
by forum_admin
Mon Dec 18, 2017 1:55 am
Forum: Hadoop and Big Data
Topic: Impala out of memory in performance cluster
Replies: 3
Views: 137

Re: Impala out of memory in performance cluster

just increase mem_limit parameter if you have enough memory. You can also calculate the memory limit based on below formula. Cluster Total Memory Requirement = Size of the smaller table * selectivity factor from the predicate *projection factor * compression ratio = 100TB * 10% * 5/200 * 3 = 0.75TB ...
by forum_admin
Mon Dec 18, 2017 1:52 am
Forum: Hadoop and Big Data
Topic: Impala out of memory in performance cluster
Replies: 3
Views: 137

Impala out of memory in performance cluster

I am the only user to Impala at performance cluster. After running a few queries, I run into the following error: [Cloudera][ImpalaODBC] (110) Error while executing a query in Impala: [HY000] : Memory limit exceeded The memory limit is set too low initialize the spilling operator. The minimum requir...
by forum_admin
Mon Dec 18, 2017 1:43 am
Forum: Free Business Advertising
Topic: nexus have voice issue
Replies: 1
Views: 7359

Re: nexus have voice issue

Don't buy nexus. if possible give it back. My wife has same problem. we got new mobile as it was in warranty. After few month second mobile also got voice issue. She is able to hear voice only after using microphone.

what a waste of 700$?
by forum_admin
Mon Dec 18, 2017 1:41 am
Forum: Free Business Advertising
Topic: nexus have voice issue
Replies: 1
Views: 7359

nexus have voice issue

I bought nexus before 6 month and now not able to hear to voice. somehow end user is able to hear me.
by forum_admin
Mon Dec 18, 2017 1:40 am
Forum: Do You Know?
Topic: Abraham Lincoln as President of the United States
Replies: 1
Views: 1195

Re: Abraham Lincoln as President of the United States

What kind of question it is? question itself give the answer.
by forum_admin
Sun Dec 17, 2017 11:29 pm
Forum: Hadoop and Big Data
Topic: memory limit error in impala
Replies: 1
Views: 73

Re: memory limit error in impala

it is common error for impala when your query use intensive memory task. You can increase the mem_limit parameter in CM.

generally set mem_limit for impala around 50% of memory capacity, if you use impala for analysis.
by forum_admin
Sun Dec 17, 2017 11:25 pm
Forum: Hadoop and Big Data
Topic: memory limit error in impala
Replies: 1
Views: 73

memory limit error in impala

I got memory limit error in impala in cloudera.

impala>select * from table limit 20000;
ERROR:
Fetching results ran into the following error(s):
Memory limit exceeded
by forum_admin
Sun Dec 17, 2017 10:44 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: Pranayam or Assana
Replies: 1
Views: 1247

Re: Pranayam or Assana

- “Asana” is the Sanskrit word for a physical posture. Expressed in general terms Asana denotes a specific position which can be held in a relaxed and comfortable manner for a long period of time. - Pranayama is the conscious and deliberate control and regulation of the breath (Prana means breath, a...
by forum_admin
Sun Dec 17, 2017 10:42 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: when does yoga start??
Replies: 1
Views: 1124

Re: when does yoga start??

- They can do yoga at little age. But some expert set the age for children around 8 years. - In India, children traditionally have their thread ceremony (upanayanam) — their initiation into religious practices — at age 8. At this age, children are introduced to sun salutations, nadi shodhana pranaya...
by forum_admin
Sun Dec 17, 2017 10:38 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: Yoga for eye health
Replies: 1
Views: 1076

Re: Yoga for eye health

Therapeutic eye yoga exercises include: Palming Blinking Changing focus of eyes from side to side simultaneously Changing focus of eyes forward and sideways simultaneously Rotational viewing Viewing upwards and down simultaneously Preliminary nose tip gazing Near and distant viewing look: https://ww...
by forum_admin
Sun Dec 17, 2017 10:33 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: bikram yoga
Replies: 1
Views: 1116

Re: bikram yoga

Bikram Yoga is a system of yoga that Bikram Choudhury synthesized from traditional hatha yoga techniques[1] It became popular in the early 1970s.[2] All Bikram Yoga Beginning Series classes run for 90 minutes and consist of the same series of 26 postures, including two breathing exercises.[3] Bikram...
by forum_admin
Sun Dec 17, 2017 10:32 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: Yoga for the old and injured
Replies: 1
Views: 1208

Re: Yoga for the old and injured

Injured person can do yoga. it is just synchronizing your brain and breath. So simple padmasan position can be done by injured or older person.

Yoga is the simplest form of exercise and it is more helpful to injured person compare to any kind of exercise.
by forum_admin
Sun Dec 17, 2017 10:30 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: How many times a day can you do Yoga?
Replies: 1
Views: 1127

Re: How many times a day can you do Yoga?

You can do it as much as you can. There is no restriction in meditation and Yoga.

For normal people 1 hour is more than enough. But some people can concentrate more and they can do up to 2 to 3 hours per day.
by forum_admin
Sun Dec 17, 2017 10:29 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: which yoga is good for back pain??
Replies: 1
Views: 1142

Re: which yoga is good for back pain??

You can do one of the below yoga poses:

Child's Pose
Cat/Cow
Downward Facing Dog
Standing Forward Bend
Sphinx Pose
Knees to Chest With Slow Rock
Reclined Pigeon Pose
Reclined Supine Twist

https://www.self.com/gallery/yoga-poses ... -back-pain
by forum_admin
Sun Dec 17, 2017 10:27 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: ashtanga yoga
Replies: 1
Views: 1132

Re: ashtanga yoga

it is normal. mostly it happens and it is good sign that you are doing it sincerely. I also have some kind of pain for few days. If it continuous than you have to change you method of Yoga. ashtanga yoga involves synchronizing the breath with a progressive series of postures—a process producing inte...
by forum_admin
Sun Dec 17, 2017 10:24 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: Which is the best time to perform Yoga??
Replies: 1
Views: 1082

Re: Which is the best time to perform Yoga??

You can do yoga anytime but make sure 2 hour after eating food. There are some yoga which you can do after taking food. e.g. Vajrason - best time to practice yoga is in the morning before breakfast. Upon waking, empty the bowels, shower if you wish, then commence the day with your regime of yoga pra...
by forum_admin
Sun Dec 17, 2017 10:20 pm
Forum: Yoga, Exercise, Pilates and Zim
Topic: Benefits of Yoga
Replies: 1
Views: 3222

Re: Benefits of Yoga

There are many unexpected benefits of Yoga. you will get physical and mental benefit from Yoga. To get different benefit from yoga you need to adapt different types of Yoga. physical benefits of yoga include: - Increased body flexibility - Increased muscle strength and tone - Improved respiration, e...
by forum_admin
Sun Dec 17, 2017 10:06 pm
Forum: Free Business Advertising
Topic: What is RPM in adsense?
Replies: 1
Views: 6097

Re: What is RPM in adsense?

Revenue per thousand impressions (RPM) Revenue per 1000 impressions (RPM) represents the estimated earnings you'd accrue for every 1000 impressions you receive. RPM doesn't represent how much you have actually earned; rather, it's calculated by dividing your estimated earnings by the number of page ...
by forum_admin
Sun Dec 17, 2017 10:06 pm
Forum: Free Business Advertising
Topic: What is RPM in adsense?
Replies: 1
Views: 6097

What is RPM in adsense?

What is RPM in Adsense?
by forum_admin
Sat Dec 16, 2017 10:53 pm
Forum: Visa/Immigration, legal and official process in USA and Canada
Topic: steps to get driving license in canada
Replies: 2
Views: 1142

Re: steps to get driving license in canada

To be over 16 years old Identification – (1) a personal ID, like a health card, and (2) a foreign or Canadian passport, citizenship card, a Permanent Residency Card (PRC) or other permanent or temporary immigration documents. (original ID and non-expired) Money Time A Car (for the road tests) Pass t...
by forum_admin
Sat Dec 16, 2017 10:52 pm
Forum: Visa/Immigration, legal and official process in USA and Canada
Topic: steps to get driving license in canada
Replies: 2
Views: 1142

Re: steps to get driving license in canada

take an eye test
bring original identification showing your legal name, date of birth and signature
bring your valid non-Ontario licence
bring any original supporting documents that show proof of your driving experience
pay the applicable fees
fill out an application form
by forum_admin
Sat Dec 16, 2017 10:50 pm
Forum: Visa/Immigration, legal and official process in USA and Canada
Topic: Passport reissue in USA - Indian Address/US Address in other address address field?
Replies: 1
Views: 1213

Re: Passport reissue in USA - Indian Address/US Address in other address address field?

it will print your current address on passport as it is your permanent address as of now.

For your home address they will specify correctly.
by forum_admin
Sat Dec 16, 2017 10:43 pm
Forum: Visa/Immigration, legal and official process in USA and Canada
Topic: How Long Should a US Citizen’s Sibling Wait to Get a Green Card?
Replies: 3
Views: 110

Re: How Long Should a US Citizen’s Sibling Wait to Get a Green Card?

Immigrants from countries with a high rate of immigration to the U.S. (China, India, Mexico and the Philippines) can have a much longer wait for a visa because they face this separate allotment.

The waiting time for this country is around 15 years from todays date.
by forum_admin
Sat Dec 16, 2017 10:42 pm
Forum: Visa/Immigration, legal and official process in USA and Canada
Topic: How Long Should a US Citizen’s Sibling Wait to Get a Green Card?
Replies: 3
Views: 110

Re: How Long Should a US Citizen’s Sibling Wait to Get a Green Card?

People who belong to countries with lower demand for immigrant visas are likely to get their immigrant visas within 12 years. USCIS allocates 65,000 immigrant visas every year to the siblings of US citizens. around 3 million sibling waiting for their green card. Trump government become little bit to...
by forum_admin
Sun Aug 20, 2017 12:43 am
Forum: Do You Know?
Topic: What is the Significance of Shaving One’s Head?
Replies: 2
Views: 195

Re: What is the Significance of Shaving One’s Head?

I find this explanation highly inconsistent as it does not feel true for people of other faiths and religions. Wisdom is something that should remain consistent regardless of people's personal faith or cultures. If you say that a sadhaka is usually required to shave his/her head at the beginning of ...
by forum_admin
Sun Aug 20, 2017 12:42 am
Forum: Do You Know?
Topic: What is the Significance of Shaving One’s Head?
Replies: 2
Views: 195

Re: What is the Significance of Shaving One’s Head?

Sadhguru: Have you noticed, if you prune a tree, the tree focuses its energy towards the pruned area and the number of leaves that come out in that part of the tree in the next fifteen to thirty days are much more than in other parts of the tree? This happens because the tree directs its energy in t...
by forum_admin
Sun Aug 20, 2017 12:08 am
Forum: Do You Know?
Topic: What is the Significance of Shaving One’s Head?
Replies: 2
Views: 195

What is the Significance of Shaving One’s Head?

What is the Significance of Shaving One’s Head? is there any reason people shave their head before go in some temple?
by forum_admin
Sat Aug 19, 2017 11:56 pm
Forum: Do You Know?
Topic: what is the total number of websites in USA?
Replies: 1
Views: 130

Re: what is the total number of websites in USA?

75% of websites today are not active. http://www.internetlivestats.com/total-number-of-websites/ Year(June) Websites Change Internet Users Users per Website Websites launched 2015 863,105,652 -11% 3,185,996,155* 3.7 2014 968,882,453 44% 2,925,249,355 3.0 2013 672,985,183 -3% 2,756,198,420 4.1 2012 6...
by forum_admin
Sat Aug 19, 2017 11:54 pm
Forum: Do You Know?
Topic: what is the total number of websites in USA?
Replies: 1
Views: 130

what is the total number of websites in USA?

it is more than 500 million websites active in USA.
by forum_admin
Sat Aug 19, 2017 11:50 pm
Forum: Do You Know?
Topic: What is the total number of websites in India?
Replies: 2
Views: 138

Re: What is the total number of websites in India?

it is around 7 million site in India alone.
by forum_admin
Sat Aug 19, 2017 11:49 pm
Forum: Do You Know?
Topic: What is the total number of websites in India?
Replies: 2
Views: 138

What is the total number of websites in India?

What is the total number of websites in India?
by forum_admin
Fri Jul 28, 2017 3:45 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: Non-resolvable parent POM for APNAddOns:APNAddOns:TRUNK-SNAPSHOT
Replies: 1
Views: 197

Re: Non-resolvable parent POM for APNAddOns:APNAddOns:TRUNK-SNAPSHOT

I am able to solve it.
it was looking for url https://repo.maven.apache.org/maven2 instead of repository url.

The reason was I have deleted my .m2 and after that it was not creating new settings.xml. So, I took old settings.xml from Trash and rerun min clean install -U.
by forum_admin
Fri Jul 28, 2017 3:43 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: Non-resolvable parent POM for APNAddOns:APNAddOns:TRUNK-SNAPSHOT
Replies: 1
Views: 197

Non-resolvable parent POM for APNAddOns:APNAddOns:TRUNK-SNAPSHOT

Hi, My maven suddenly stopped woken below command. it is giving below error. Non-resolvable parent POM for APNAddOns:APNAddOns:TRUNK-SNAPSHOT: Failure to find com.nielsen:nielsen:pom:1 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted unti...
by forum_admin
Thu Jun 01, 2017 6:46 pm
Forum: Do You Know?
Topic: How to play Pokemon Go?
Replies: 2
Views: 244

Re: How to play Pokemon Go?

Pokemon Go is exciting because you're not only catching and battling Pokemon, you're exploring the real world, discovering cool places and monuments in your town. you need a smartphone, the Pokemon Go app and a good pair of trainers. go here: http://www.pocket-lint.com/news/138204-pokemon-go-how-to-...
by forum_admin
Thu Jun 01, 2017 6:44 pm
Forum: Do You Know?
Topic: How to accept myself for who I am?
Replies: 0
Views: 251

How to accept myself for who I am?

How to accept myself for who I am?
by forum_admin
Thu Jun 01, 2017 6:44 pm
Forum: Do You Know?
Topic: How to apply for British citizenship?
Replies: 0
Views: 202

How to apply for British citizenship?

How to apply for British citizenship?
by forum_admin
Thu Jun 01, 2017 6:43 pm
Forum: Do You Know?
Topic: How to appear funny?
Replies: 0
Views: 205

How to appear funny?

How to appear funny?
by forum_admin
Thu Jun 01, 2017 6:43 pm
Forum: Do You Know?
Topic: How to make slime?
Replies: 0
Views: 197

How to make slime?

How to make slime?
by forum_admin
Thu Jun 01, 2017 6:43 pm
Forum: Do You Know?
Topic: How to get an Irish passport?
Replies: 0
Views: 179

How to get an Irish passport?

How to get an Irish passport?
by forum_admin
Thu Jun 01, 2017 6:42 pm
Forum: Do You Know?
Topic: How to go live on Facebook?
Replies: 0
Views: 202

How to go live on Facebook?

How to go live on Facebook?
by forum_admin
Thu Jun 01, 2017 6:42 pm
Forum: Do You Know?
Topic: How to stay young?
Replies: 0
Views: 206

How to stay young?

How to stay young?
by forum_admin
Thu Jun 01, 2017 6:42 pm
Forum: Do You Know?
Topic: How to lose weight well?
Replies: 0
Views: 192

How to lose weight well?

How to lose weight well?
by forum_admin
Thu Jun 01, 2017 6:42 pm
Forum: Do You Know?
Topic: How to play Pokemon Go?
Replies: 2
Views: 244

How to play Pokemon Go?

How to play Pokemon Go?
by forum_admin
Wed May 31, 2017 12:07 am
Forum: Hadoop and Big Data
Topic: Hive Error: Caused by: java.lang.NullPointerException at org.apache.hadoop.hive.ql.exec.FileSinkOperator.findWriterOffset(FileSinkOperator.java:761)
Replies: 2
Views: 249

Hive Error: Caused by: java.lang.NullPointerException at org.apache.hadoop.hive.ql.exec.FileSinkOperator.findWriterOffset(FileSinkOperator.java:761)

Hive update query is giving below error: Caused by: java.lang.NullPointerException at org.apache.hadoop.hive.ql.exec.FileSinkOperator.findWriterOffset(FileSinkOperator.java:761) at org.apache.hadoop.hive.ql.exec.FileSinkOperator.processOp(FileSinkOperator.java:689) at org.apache.hadoop.hive.ql.exec....
by forum_admin
Wed May 31, 2017 12:05 am
Forum: Hadoop and Big Data
Topic: Hive FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: org.apache.thrift.transport.TTransportException:
Replies: 2
Views: 575

Re: Hive FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: org.apache.thrift.transport.TTransportException:

it is heap error. look in log. it may shows below exit code: Container killed on request. Exit code is 143 Container exited with a non-zero exit code 143 Hive/HiveServer2/Configuration/Resource Management/Java Heap Size Hive/Hive Metastore/Configuration/Resource Management/Java Heap Size mapreduce.m...
by forum_admin
Wed May 31, 2017 12:04 am
Forum: Hadoop and Big Data
Topic: Hive FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: org.apache.thrift.transport.TTransportException:
Replies: 2
Views: 575

Re: Hive FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: org.apache.thrift.transport.TTransportException:

Meanwhile the steps I have taken for better performance and to avoid this problem are: 1. Database connection pooling tuning, Default is 10, made it 30 on each thrift server. Though the the DBCP Connection Pool ( maximum connections) config also need to be think though as that will also have implica...
by forum_admin
Wed May 31, 2017 12:02 am
Forum: Hadoop and Big Data
Topic: Hive FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: org.apache.thrift.transport.TTransportException:
Replies: 2
Views: 575

Hive FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: org.apache.thrift.transport.TTransportException:

Hive is not running. giving Read timed out error. [hadoop@localhost1 bin]$ hive Logging initialized using configuration in jar:file:/opt/cloudera/parcels/CDH-5.4.3-1.cdh5.4.3.p0.6/jars/hive-common-1.1.0-cdh5.4.3.jar!/hive-log4j.properties FAILED: SemanticException org.apache.hadoop.hive.ql.metadata....
by forum_admin
Wed May 17, 2017 8:17 pm
Forum: Hadoop and Big Data
Topic: Hive Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate
Replies: 1
Views: 199

Hive Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate

Error while accessing hive: [hadoop@localhost bin]$ hive Logging initialized using configuration in jar:file:/opt/cloudera/parcels/CDH-5.4.3-1.cdh5.4.3.p0.6/jars/hive-common-1.1.0-cdh5.4.3.jar!/hive-log4j.properties Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeEx...
by forum_admin
Sun Feb 26, 2017 12:21 am
Forum: Free Business Advertising
Topic: how single forum thread post generate traffic for my website?
Replies: 1
Views: 14939

how single forum thread post generate traffic for my website?

I have my own website and want at least 1000 viewer for it. How it will be possible if I post my website in different forums?

below is my blog:
http://rulesforlyfe.blogspot.com
by forum_admin
Fri Oct 28, 2016 6:58 pm
Forum: Do You Know?
Topic: Ae Dil Hai Mushkil vs Shivaay 1st day box office collection
Replies: 1
Views: 1058

Ae Dil Hai Mushkil vs Shivaay 1st day box office collection

Ae Dil Hai Mushkil vs Shivaay 1st day box office collection: Karan Johar's film vs Ajay Devgn's movie

What is the Shivaay 1st day box office collection?
what is the Ae Dil Hai Mushkil 1st day box office collection?
by forum_admin
Sat Sep 24, 2016 9:17 pm
Forum: Hadoop and Big Data
Topic: how to Load multiple files in Pig?
Replies: 1
Views: 219

how to Load multiple files in Pig?

how to Load multiple files in Pig?
by forum_admin
Sat Sep 24, 2016 9:16 pm
Forum: Hadoop and Big Data
Topic: how to import streaming data from Kafka into HBase
Replies: 1
Views: 223

how to import streaming data from Kafka into HBase

what are best practices for importing streaming data from Kafka into HBase?
by forum_admin
Sat Sep 24, 2016 9:15 pm
Forum: Hadoop and Big Data
Topic: what is Compaction in HBase?
Replies: 1
Views: 219

what is Compaction in HBase?

what is Compaction in HBase?
by forum_admin
Sat Sep 24, 2016 9:14 pm
Forum: Hadoop and Big Data
Topic: what is WAL and Hlog in Hbase?
Replies: 1
Views: 232

what is WAL and Hlog in Hbase?

what is WAL and Hlog in Hbase?
by forum_admin
Sat Sep 24, 2016 9:13 pm
Forum: Hadoop and Big Data
Topic: When kafka delete message?
Replies: 2
Views: 246

When kafka delete message?

When kafka delete message?
by forum_admin
Sat Sep 24, 2016 9:12 pm
Forum: Hadoop and Big Data
Topic: how to delete the message from a Kafka broker after consuming it?
Replies: 1
Views: 215

how to delete the message from a Kafka broker after consuming it?

delete the message from a Kafka broker after consuming it. How can I do that?
by forum_admin
Sat Sep 24, 2016 9:12 pm
Forum: Hadoop and Big Data
Topic: Delete kafka topic manually
Replies: 1
Views: 199

Delete kafka topic manually

how to Delete kafka topic manually?
by forum_admin
Sat Sep 24, 2016 9:10 pm
Forum: Hadoop and Big Data
Topic: Kafka performance tunning
Replies: 3
Views: 267

Kafka performance tunning

which are the main Kafka performance tunning option?
by forum_admin
Sat Sep 24, 2016 9:09 pm
Forum: Hadoop and Big Data
Topic: Sqoop performance tuning
Replies: 3
Views: 419

Sqoop performance tuning

Sqoop performance tuning options
by forum_admin
Sat Sep 24, 2016 9:09 pm
Forum: Hadoop and Big Data
Topic: Query writing steps for better performance in hive
Replies: 1
Views: 237

Query writing steps for better performance in hive

is there any Query writing steps for better performance in hive?
by forum_admin
Sat Sep 24, 2016 9:08 pm
Forum: Hadoop and Big Data
Topic: order by vs sort by vs cluster by vs distributed by in hive
Replies: 1
Views: 437

order by vs sort by vs cluster by vs distributed by in hive

order by vs sort by vs cluster by vs distributed by in hive
by forum_admin
Sat Sep 24, 2016 9:07 pm
Forum: Hadoop and Big Data
Topic: left semi join vs simple join in hive
Replies: 1
Views: 281

left semi join vs simple join in hive

what is left semi join in hive?


how it is different than simple join?
by forum_admin
Sat Sep 24, 2016 9:05 pm
Forum: Hadoop and Big Data
Topic: Advantages and disadvantages of using map side join in hive
Replies: 1
Views: 305

Advantages and disadvantages of using map side join in hive

what are the Advantages and disadvantages of using map side join in hive?
by forum_admin
Sat Sep 24, 2016 9:04 pm
Forum: Hadoop and Big Data
Topic: INSERT operation in hive partition table
Replies: 1
Views: 278

INSERT operation in hive partition table

how to write INSERT operation and query in hive partition table?
by forum_admin
Sat Sep 24, 2016 9:03 pm
Forum: Hadoop and Big Data
Topic: Hive performance tuning
Replies: 2
Views: 365

Hive performance tuning

Hive performance tuning example with detail steps
by forum_admin
Sat Sep 24, 2016 9:02 pm
Forum: Hadoop and Big Data
Topic: where to use distributed cache in hadoop map reduce?
Replies: 0
Views: 774

where to use distributed cache in hadoop map reduce?

where to use distributed cache in hadoop map reduce?
by forum_admin
Sat Sep 24, 2016 9:01 pm
Forum: Hadoop and Big Data
Topic: Map reduce performance tunning
Replies: 1
Views: 247

Map reduce performance tunning

What are the main steps for Map reduce performance tunning?

This interview question i got so many time.
by forum_admin
Sat Sep 24, 2016 9:00 pm
Forum: Hadoop and Big Data
Topic: what is sliding window in spark?
Replies: 0
Views: 787

what is sliding window in spark?

what is sliding window in spark?
by forum_admin
Sat Sep 24, 2016 8:59 pm
Forum: Hadoop and Big Data
Topic: Parquest vs ORC
Replies: 1
Views: 278

Parquest vs ORC

Parquest vs ORC file system for hive table
by forum_admin
Sat Sep 24, 2016 8:58 pm
Forum: Hadoop and Big Data
Topic: What are the challenges you faced in hive hadoop developement
Replies: 2
Views: 1484

What are the challenges you faced in hive hadoop developement

I got below interview question for hive. I am new to hive.

What are the challenges you faced in hive?
by forum_admin
Wed Apr 06, 2016 6:29 pm
Forum: Hadoop and Big Data
Topic: sqoop error: com.teradata.connector.common.exception.ConnectorException: index outof boundary
Replies: 1
Views: 2464

sqoop error: com.teradata.connector.common.exception.ConnectorException: index outof boundary

sqoop export --connect jdbc:teradata://HOSTNAME/DATABASE=DBNAME,logmech=ldap --username uname --password pass --table hive_test --export-dir /user/hive/warehouse/test.db/test_dir --fields-terminated-by '\t' 16/04/06 14:18:22 INFO mapreduce.Job: Task Id : attempt_1458783375697_0015_m_000001_0, Status...
by forum_admin
Wed Sep 23, 2015 10:29 pm
Forum: Hadoop and Big Data
Topic: sqoop Eroor: /opt/cloudera/parcels/CDH-5.2.1-1.cdh5.2.1.splice1.0.2.12/bin/../lib/sqoop/bin/sqoop: line 101: exec: /usr/lib/hadoop/bin/hadoop: cannot execute: No such file or directory
Replies: 1
Views: 511

Re: sqoop Eroor: /opt/cloudera/parcels/CDH-5.2.1-1.cdh5.2.1.splice1.0.2.12/bin/../lib/sqoop/bin/sqoop: line 101: exec: /usr/lib/hadoop/bin/hadoop: cannot execute: No such file or directory

I think there are two hadoop bin path in your node. you will get correct hadoop installation path by below command. hadoop version remove multiple cdh file from the required destination. go in the /usr/lib dir [root@userroor lib]# rpm -qa | grep -i cdh solr-doc-4.4.0+cdh5.1.0+231-1.cdh5.1.0.p0.32.el...
by forum_admin
Tue Sep 08, 2015 6:14 pm
Forum: Hadoop and Big Data
Topic: java.io.IOException: Header doesn't contain versioninfo
Replies: 1
Views: 1917

java.io.IOException: Header doesn't contain versioninfo

I am using pdfbox to read pdf files in hadoop map reduce. I am getting below error and it is not related to java code but looks like related to pdf library. 15/09/08 14:09:34 INFO mapreduce.Job: Task Id : attempt_1441061965240_0023_m_000 000_0, Status : FAILED Error: java.io.IOException: Error: Head...
by forum_admin
Tue Sep 08, 2015 12:39 am
Forum: Civil Engineering, Environmental Engineering & Architectural
Topic: What is Concrete?
Replies: 1
Views: 2593

What is Concrete?

What is Concrete? What is the main content in Concrete?
by forum_admin
Wed Apr 08, 2015 9:05 pm
Forum: Hadoop and Big Data
Topic: org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleError
Replies: 1
Views: 820

org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleError

I am getting below error while running pi example on Hortonworks hadoop 2 15/03/31 16:16:58 INFO mapred.LocalJobRunner: reduce task executor complete. 15/03/31 16:16:58 WARN mapred.LocalJobRunner: job_local980518954_0001 java.lang.Exception: org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleErr...
by forum_admin
Wed Apr 08, 2015 9:03 pm
Forum: Cloud Computing
Topic: E: Some index files failed to download
Replies: 1
Views: 428

E: Some index files failed to download

apt-get update is giving below error in ubnuntu: Ign http://aquafai trusty-updates/restricted Translation-en Err http://aquafai trusty/main amd64 Packages 503 Service Unavailable Err http://aquafai trusty/restricted amd64 Packages 503 Service Unavailable Err http://aquafai trusty-updates/main amd64...
by forum_admin
Wed Apr 08, 2015 9:01 pm
Forum: Cloud Computing
Topic: openjdk-7-jdk : Depends: openjdk-7-jre
Replies: 1
Views: 414

openjdk-7-jdk : Depends: openjdk-7-jre

root@a2u8:~# apt-get -q -y --force-yes install openjdk-7-jdk Reading package lists... Building dependency tree... Reading state information... Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some r...
by forum_admin
Wed Apr 08, 2015 8:59 pm
Forum: Cloud Computing
Topic: ERROR: Net::SSH::HostKeyMismatch: fingerprint
Replies: 1
Views: 3538

ERROR: Net::SSH::HostKeyMismatch: fingerprint

knife solo clean error:
root@ubuntu:~/Hadoop/testhadoop# knife solo clean 162.16.206.16
Cleaning up 162.16.206.16...
ERROR: Net::SSH::HostKeyMismatch: fingerprint e3:5e:1d:23:f3:0e:fa:da:0c:57:21:86:39:62:08:71 does not match for "162.16.206.16"
by forum_admin
Wed Apr 08, 2015 8:57 pm
Forum: Hadoop and Big Data
Topic: Datanode Uuid unassigned
Replies: 1
Views: 461

Datanode Uuid unassigned

I am getting below error while starting the datanode: nasty@ubuntu: bin/hadoop-daemon.sh start datanode org.apache.hadoop.hdfs.server.datanode.DataNode: I nitialization failed for block pool Block pool <registering> (Datanode Uuid unassigned) service to nasty.usa.local/182.15.256.15:8020 2015-03-30 ...
by forum_admin
Thu Apr 02, 2015 11:20 pm
Forum: Cloud Computing
Topic: openstack nova ERROR (BadRequest): This rule already exists
Replies: 1
Views: 403

openstack nova ERROR (BadRequest): This rule already exists

I type below command and got error:
avirani@i136 ~]$ nova secgroup-add-rule default icmp -1 -1 0.0.0.0/0
ERROR (BadRequest): This rule already exists in group 8cbda74b-570b-4d92-934f-0c3528ca5519 (HTTP 400) (Request-ID: req-bf9d50cc-5118-4530-9817-89a464d4f1cd)
by forum_admin
Thu Apr 02, 2015 7:22 pm
Forum: Hadoop and Big Data
Topic: org.apache.hadoop.mapreduce.lib.input.InvalidInputException
Replies: 1
Views: 513

org.apache.hadoop.mapreduce.lib.input.InvalidInputException

root@user:~# hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples-*.jar wordcount input output 15/04/02 11:12:15 INFO client.RMProxy: Connecting to ResourceManager at a2u6.aqua.local/182.27.206.25:8032 15/04/02 11:12:15 INFO mapreduce.JobSubmitter: Cleaning up the staging area /tmp/hadoop...
by forum_admin
Wed Apr 01, 2015 6:47 pm
Forum: Hadoop and Big Data
Topic: org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleError
Replies: 1
Views: 519

org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleError

I am getiing below error when running mapreduce pi example: 15/03/31 16:16:58 INFO mapred.LocalJobRunner: reduce task executor complete. 15/03/31 16:16:58 WARN mapred.LocalJobRunner: job_local980518954_0001 java.lang.Exception: org.apache.hadoop.mapreduce.task.reduce.Shuffle$ShuffleError: error in s...
by forum_admin
Wed Apr 01, 2015 6:44 pm
Forum: Hadoop and Big Data
Topic: error for ssh in knife solo clean
Replies: 1
Views: 390

error for ssh in knife solo clean

root@ubuntu:~/Hadoop/a2u6hadoop# knife solo clean 192.18.201.15
Cleaning up 192.18.201.15...
ERROR: Net::SSH::HostKeyMismatch: fingerprint e3:5e:1d:23:f3:0e:fa:da:0c:57:21:86:39:62:08:71 does not match for "172.17.206.15"
by forum_admin
Wed Apr 01, 2015 6:42 pm
Forum: Hadoop and Big Data
Topic: Incompatible clusterIDs in /hadoop/02/datanode1: namenode
Replies: 0
Views: 1077

Incompatible clusterIDs in /hadoop/02/datanode1: namenode

When i start datanode. it is giving below error: /usr/lib/hadoop-hdfs/../hadoop/sbin/hadoop-daemon.sh start datanode 2015-03-30 19:16:37,927 FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: I nitialization failed for block pool Block pool <registering> (Datanode Uuid unas signed) service to a2...
by forum_admin
Sun Mar 29, 2015 1:53 am
Forum: Hadoop and Big Data
Topic: exception while try to create hbase table
Replies: 1
Views: 385

exception while try to create hbase table

Please let me what might be issue for causing this exception - I am getting below exception while i try to create hbase tables using this command I started hadoop and hbase using below commands # start hadoop $ cd /root/software/hadoop-1.1.2/ $ . ./MultiNodesOneClickStartUp.sh /root/software/jdk1.6....
by forum_admin
Sun Mar 29, 2015 1:34 am
Forum: Hadoop and Big Data
Topic: ./bin/start-hbase.sh giving error: Bad Owner and permission
Replies: 1
Views: 396

./bin/start-hbase.sh giving error: Bad Owner and permission

Hi,
root@ubuntu:~/software/hbase-0.94.7#./bin/start-hbase.sh
bad owner or permission /root/.ssh/config

I am getting error ./bin/start-hbase.sh giving error: Bad Owner and permission deny to /root/.ssh/config
I am not able to start Hbase. any one got same error?
by forum_admin
Sun Mar 22, 2015 7:58 pm
Forum: Cloud Computing
Topic: openstack install: die 255 'ceilometer-api did not start
Replies: 1
Views: 960

openstack install: die 255 'ceilometer-api did not start

openstack install: die 255 'ceilometer-api did not start is_service_enabled ceilometer-api 2015-01-09 16:26:10.698 | + return 0 2015-01-09 16:26:10.698 |+ echo 'Waiting for ceilometer-api to start...' 2015-01-09 16:26:10.698 | Waiting for ceilometer-api to start... 2015-01-09 16:26:10.698 |+ timeou...
by forum_admin
Wed Mar 18, 2015 11:59 pm
Forum: Hadoop and Big Data
Topic: openstack install: die 255 'ceilometer-api did not start
Replies: 3
Views: 1469

openstack install: die 255 'ceilometer-api did not start

is_service_enabled ceilometer-api 2015-01-09 16:26:10.698 | + return 0 2015-01-09 16:26:10.698 |+ echo 'Waiting for ceilometer-api to start...' 2015-01-09 16:26:10.698 | Waiting for ceilometer-api to start... 2015-01-09 16:26:10.698 |+ timeout 60 sh -c 'while ! curl --noproxy '\''*'\'' -s http://loc...
by forum_admin
Thu Dec 04, 2014 12:30 am
Forum: Hadoop and Big Data
Topic: Small files and HDFS blocks in Hadoop
Replies: 1
Views: 947

Re: Small files and HDFS blocks in Hadoop

Lets see below example: e.g. hadoop default block size is 64 MB and it is phisical block. if you have file size 140 MB. Then hadoop will make 2 block of 64 MB and one block of 12 MB. In third block it will not waste the another 52 MB space as it is logical block. so other 52 MB space will use for ot...
by forum_admin
Sat Oct 25, 2014 1:41 am
Forum: Hadoop and Big Data
Topic: Preparation for the Cloudera Hadoop developer certificate
Replies: 4
Views: 986

Preparation for the Cloudera Hadoop developer certificate

I am planning to give Hadoop Developer CCDH - Cloudera exam. I need the list of materials which i can prefer for Exam prepartion. How to make Preparation for the Cloudera Hadoop developer certificate?
by forum_admin
Sat Oct 25, 2014 12:36 am
Forum: Hadoop and Big Data
Topic: points to consider for using Sqoop
Replies: 1
Views: 486

points to consider for using Sqoop

Which are the main points to consider for using Sqoop? how to do Effective use of Sqoop?
by forum_admin
Sat Oct 25, 2014 12:22 am
Forum: Hadoop and Big Data
Topic: Case-Sensitive Catalog Query error in sqoop
Replies: 2
Views: 1026

Re: Case-Sensitive Catalog Query error in sqoop

Always specify the user and table names in upper case (unless it was created with mixed/lower case within Quote).
by forum_admin
Sat Oct 25, 2014 12:18 am
Forum: Hadoop and Big Data
Topic: getting Communications link failure error for sqoop
Replies: 1
Views: 577

Re: getting Communications link failure error for sqoop

it is just connection error so look at below points. some one already posted it. look at viewtopic.php?f=2&t=788 – Verify that you can connect to the database from the node where you are running Sqoop: • $ mysql --host=<IP Address> --database=test --user=<username> -- password=<password> – Add t...
by forum_admin
Tue Oct 14, 2014 3:43 am
Forum: Hadoop and Big Data
Topic: Deamons are running however MapReduce job not Running
Replies: 1
Views: 455

Deamons are running however MapReduce job not Running

I upgraded the MAC OS version last day and since then pseudo-cluster is not working. Deamons are running however MapReduce job are showing below and keep on showing this only. Any idea? 2014-10-13 14:35:57,165 INFO org.apache.hadoop.mapred.TaskTracker: attempt_201410130256_0001_m_000000_1 0.50793654...
by forum_admin
Thu Oct 09, 2014 12:13 am
Forum: PHP, HTML, MYSQL and Web Hosting
Topic: extention used for HTML file
Replies: 1
Views: 417

Re: extention used for HTML file

It is .html.
e.g. userform.html

HTML stands for Hypertext markup language file
by forum_admin
Mon Oct 06, 2014 8:31 pm
Forum: Microsoft Excel and VBA Forum
Topic: VBA Message with Yes or No MsgBox
Replies: 2
Views: 3364

VBA Message with Yes or No MsgBox

How to get yes or no button in VBA message box? How can i get vba excel to do something depending on whether the user selects yes or no button?
by forum_admin
Sun Oct 05, 2014 4:01 pm
Forum: PHP, HTML, MYSQL and Web Hosting
Topic: extention used for HTML file
Replies: 1
Views: 417

extention used for HTML file

Which extention used to saved HTML file? What is full form of HTML?
by forum_admin
Sun Oct 05, 2014 4:00 pm
Forum: PHP, HTML, MYSQL and Web Hosting
Topic: what is html?
Replies: 1
Views: 377

what is html?

what is html? What is the use of html?
by forum_admin
Tue Sep 23, 2014 3:01 am
Forum: Hadoop and Big Data
Topic: Can i use Windows for Hadoop?
Replies: 1
Views: 548

Re: Can i use Windows for Hadoop?

Yes you can install haddop in Window and can use Windows for Hadoop Practice. Windows is not used frequently for installing Hadoop as there are many support problems with Windows. Thus, Windows is not a preferred environment for Hadoop. see: http://hortonworks.com/blog/install-hadoop-windows-horton...
by forum_admin
Thu Sep 18, 2014 8:51 pm
Forum: Hadoop and Big Data
Topic: hardware requirement to build Hadoop for practice
Replies: 1
Views: 408

hardware requirement to build Hadoop for practice

What is hardware requirement to build Hadoop for practice?
What is the network and hardware requirement to build Hadoop for practice and self study?
by forum_admin
Wed Sep 17, 2014 5:22 pm
Forum: Hadoop and Big Data
Topic: Sqoop: Importing records into Hive using incremental import
Replies: 1
Views: 367

Sqoop: Importing records into Hive using incremental import

Sqoop: Importing the updated records into Hive using incremental import is not working i wrote below command: sqoop import --hive-import --driver com.mysql.jdbc.Driver --connect jdbc:mysql://<IPADDRESS>:<PORT>/<DBNANME> --username <USERNAME> --password <PASSWORD> --table <TABLEINMYSQL> --hive-table ...
by forum_admin
Wed Sep 17, 2014 2:12 am
Forum: Hadoop and Big Data
Topic: Hive query fails with error
Replies: 1
Views: 396

Hive query fails with error

Hive query fails with Below error
FAILED: Error in metadata: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask
by forum_admin
Wed Sep 17, 2014 1:56 am
Forum: Hadoop and Big Data
Topic: Can i set Reduce task Zero in MapReduce?
Replies: 1
Views: 341

Can i set Reduce task Zero in MapReduce?

Can i set Zero Reduce task in MapReduce? How i can set Reduce task to Zero? What will happen if i set Reduce Task to Zero?
by forum_admin
Wed Sep 17, 2014 12:07 am
Forum: Hadoop and Big Data
Topic: can i change path for my Hadoop configuration file?
Replies: 1
Views: 421

Re: can i change path for my Hadoop configuration file?

Yes, you can set any path for your configuration by initializing bash.

export HADOOP_CONF_DIR=/hadoop_install/conf
by forum_admin
Wed Sep 17, 2014 12:05 am
Forum: Hadoop and Big Data
Topic: can i change path for my Hadoop configuration file?
Replies: 1
Views: 421

can i change path for my Hadoop configuration file?

can i set any path for my Hadoop configuration file? Can i put my hadoop conf folder anywhere?
by forum_admin
Tue Sep 16, 2014 4:38 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: Collection vs Collections n Java
Replies: 2
Views: 726

Re: Collection vs Collections n Java

Collection vs Collections 1) Collection is a base interface for most collection classes, whreas Collections is a utility class. 2) Collection is a interface of Java Collections Framework. This means that every single class implementing Collection in any form is part of the Java Collections Framework...
by forum_admin
Mon Sep 15, 2014 1:45 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: Reference equality vs Logical equality in Java
Replies: 1
Views: 544

Reference equality vs Logical equality in Java

Difference between Reference equality and Logical equality in Java?
by forum_admin
Mon Sep 15, 2014 12:27 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: How to synchronize List, Set and Map elements in Java
Replies: 1
Views: 555

Re: How to synchronize List, Set and Map elements in Java

Collections Class provide below methods to synchronize List, Set and Map elements in Java public static List synchronizedList(List l){} public static Set synchronizedSet(Set s){} public static SortedSet synchronizedSortedSet(SortedSet s){} public static Map synchronizedMap(Map m){} public static Sor...
by forum_admin
Sun Sep 14, 2014 11:49 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: How to synchronized HashMap in Java Collection?
Replies: 1
Views: 530

Re: How to synchronized HashMap in Java Collection?

Yes we can synchronized HashMap in Java Collection.
HashMap can be synchronized by below method.


Code: Select all

Map hm1= Collections.synchronizedMap(hashMap);
by forum_admin
Sun Sep 14, 2014 7:53 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: What is Java Collections Framework?
Replies: 1
Views: 556

What is Java Collections Framework?

What is Java Collections Framework? what are the benefits of Collections framework?
by forum_admin
Fri Sep 12, 2014 4:38 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: fork join in Java Multi-Threading
Replies: 1
Views: 507

Re: fork join in Java Multi-Threading

Fork-Join Framework introduced in Java 7. Basically the Fork-Join breaks the task at hand into mini-tasks until the mini-task is simple enough that it can be solved without further breakups. It’s like a divide-and-conquer algorithm. One important concept to note in this framework is that ideally no...
by forum_admin
Thu Sep 11, 2014 8:27 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: What is Thread in Java?
Replies: 1
Views: 555

Re: What is Thread in Java?

No Process and Thread are not same. Process may have multiple Threads. A thread is a lightweight process. A thread is a thread of execution in a program. The Java Virtual Machine allows an application to have multiple threads of execution running concurrently. All Java programs have at least one thr...
by forum_admin
Thu Sep 11, 2014 8:21 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: What is a thread pools in Java?
Replies: 1
Views: 537

Re: What is a thread pools in Java?

A thread pool is a group of threads initially created that waits for jobs and executes them. The idea is to have the threads always existing, so that we won't have to pay overhead time for creating them every time. A thread pool manages the pool of worker threads, it contains a queue that keeps task...
by forum_admin
Thu Sep 11, 2014 6:41 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: volatile variable in Java
Replies: 1
Views: 496

volatile variable in Java

What is volatile variable in Java? I never use the volatile variable, Where we are using it?
by forum_admin
Thu Sep 11, 2014 6:38 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: What is Java Memory Model?
Replies: 2
Views: 623

Re: What is Java Memory Model?

The Java memory model describes how threads in the Java programming language interact through memory. Together with the description of single-threaded execution of code, the memory model provides the semantics of the Java programming language. The Java Memory Model describes what behaviors are lega...
by forum_admin
Thu Sep 11, 2014 6:28 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: non-atomic and Atomic operations in Java multithreading
Replies: 1
Views: 556

Re: non-atomic and Atomic operations in Java multithreading

Atomic operations: Atomic operations are performed in a single unit of task without interference from other operations. Atomic operations are necessity in multi-threaded environment to avoid data inconsistency. ava.util.concurrent.atomic provides wrapper classes for int and long that can be used to...
by forum_admin
Thu Sep 11, 2014 6:13 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: Singleton class in Java
Replies: 1
Views: 525

Re: Singleton class in Java

The Singleton's purpose is to control object creation, limiting the number of obejcts to one only. It is like static fields. Singletons often control access to resources such as database connections or sockets. Singleton pattern restricts the instantiation of a class and ensures that only one insta...
by forum_admin
Thu Sep 11, 2014 6:08 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: thread-safe singleton class in Java
Replies: 1
Views: 514

Re: thread-safe singleton class in Java

Thread safe Singleton means a Singleton class which returns exactly same instance even if exposed to multiple threads. But there is a simple trick that allows you to code a threadsafe implementation that doesn't require synchronization! It is known as the Initialization-on-demand holder idiom, and ...
by forum_admin
Thu Sep 11, 2014 6:01 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: racing conditions in Java Multithreading
Replies: 1
Views: 522

Re: racing conditions in Java Multithreading

Race condition in Java is a type of concurrency bug or issue which is introduced in your program because parallel execution of your program by multiple threads at same time. Race conditions occurs when two thread operate on same object without proper synchronization and there operation interleaves o...
by forum_admin
Thu Sep 11, 2014 1:32 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: yield and sleeping in Java Multithreading
Replies: 1
Views: 434

Re: yield and sleeping in Java Multithreading

This static method is essentially used to notify the system that the current thread is willing to "give up the CPU" for a while. The general idea is that: The thread scheduler will select a different thread to run instead of the current one. The java.lang.Thread.yield() method causes the c...
by forum_admin
Wed Sep 10, 2014 9:07 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: difference between processes and threads
Replies: 1
Views: 456

difference between processes and threads

I am finding common interview question in Java is What is the difference between processes and threads?
by forum_admin
Wed Sep 10, 2014 8:53 pm
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: JDBC connectivity from JSP/Servlet
Replies: 1
Views: 405

JDBC connectivity from JSP/Servlet

How can i connect to the oracle database from JSP/Servlet? I want to make JDBC connectivity using asp or servlet pages.
by forum_admin
Tue Sep 09, 2014 9:07 pm
Forum: Hadoop and Big Data
Topic: Why Map output of Map reduce write in the Local disk?
Replies: 1
Views: 332

Why Map output of Map reduce write in the Local disk?

Why Map output of Map reduce write in the Local disk? Is there any specific reason to do so?
by forum_admin
Tue Aug 19, 2014 12:47 am
Forum: Microsoft Excel and VBA Forum
Topic: how to get substring in VBA excel?
Replies: 1
Views: 713

how to get substring in VBA excel?

how to get substring in VBA excel? I want to get specific string or substring from the cell value. Is there any way to get specific character or substring using VBA code?
by forum_admin
Fri Aug 15, 2014 9:18 pm
Forum: PostgreSQL, MySQL, SQL Server, SQL,PL/SQL, TeraData Developer and DataBase Administration
Topic: ORA-00027: cannot kill current session
Replies: 1
Views: 800

ORA-00027: cannot kill current session

error code: ORA-00027
getting ORA-00027: cannot kill current session error in oracle DB. how to resolve it?
by forum_admin
Fri Aug 15, 2014 6:41 pm
Forum: Microsoft Excel and VBA Forum
Topic: listbox not showing or not scrolling last value in Excel
Replies: 1
Views: 672

listbox not showing or not scrolling last value in Excel

I can't figure out why the last item of a listbox is not showing up properly in Excel VBA worksheet.
Excel listbox that can't scroll the last element into view. I mean i am not able to see he last value in Listbox. I can see it but less than half or nothing.
Is vba code changing the height?
by forum_admin
Thu Aug 14, 2014 8:09 pm
Forum: PostgreSQL, MySQL, SQL Server, SQL,PL/SQL, TeraData Developer and DataBase Administration
Topic: ORA-00021: session attached to some other process
Replies: 1
Views: 447

ORA-00021: session attached to some other process

error code: ORA-00021
ORA-00021: session attached to some other process; cannot switch session in Oracle DB?
by forum_admin
Thu Aug 14, 2014 1:37 am
Forum: PHP, HTML, MYSQL and Web Hosting
Topic: get google map on website
Replies: 1
Views: 597

Re: get google map on website

Here One Example Of Adding Google Map To your WebSite. <!DOCTYPE html> <html> <head> <style> #map_canvas { width: 500px; height: 400px; } </style> <script src="https://maps.googleapis.com/maps/api/js"></script> <script> function initialize() { var map_canvas = document.getElementById('map_...
by forum_admin
Tue Aug 12, 2014 6:44 pm
Forum: PHP, HTML, MYSQL and Web Hosting
Topic: WordPress plugin that list DataBase table
Replies: 1
Views: 526

Re: WordPress plugin that list DataBase table

Before beginning, make a backup copy of your existing database. Then, login to your database using phpAdmin (or whatever), and navigate to the “active_plugins” column of the “wp_options” table using the following SQL query (edit the default WordPress table prefix “wp_” if needed): SELECT * FROM wp_o...
by forum_admin
Tue Aug 12, 2014 6:33 pm
Forum: PHP, HTML, MYSQL and Web Hosting
Topic: jquery custom fadeIn simple Example
Replies: 1
Views: 512

Re: jquery custom fadeIn simple Example

fedIn() method The fadeIn() method gradually changes the opacity, for selected elements, from hidden to visible (fading effect). Note: Hidden elements will not be displayed at all (no longer affects the layout of the page). Tip: This method is often used together with the fadeOut() method. //jquery...
by forum_admin
Sat Aug 02, 2014 1:29 am
Forum: Hadoop and Big Data
Topic: File Permissions and Security in Hadoop
Replies: 1
Views: 498

File Permissions and Security in Hadoop

File Permissions and Security in Hadoop is same like other system or it have its own structure. Which are the important configuration parameter or command for Hadoop File Permission and Security?
by forum_admin
Fri Aug 01, 2014 8:48 pm
Forum: Hadoop and Big Data
Topic: Rack Awareness in Hadoop and Configuration of Rack Awareness
Replies: 1
Views: 410

Rack Awareness in Hadoop and Configuration of Rack Awareness

What is Rack Awareness in Hadoop? How and When I can configure Rack Awareness in Hadoop Framework? Rack Awareness is related to cluster and i think hadoop will maintain it as a user i should not worry about it.
by forum_admin
Fri Aug 01, 2014 6:43 pm
Forum: Hadoop and Big Data
Topic: How Secondary NameNode Work
Replies: 1
Views: 430

How Secondary NameNode Work

What is Secondary NameNode? Why Hadoop need Secondary NameNode? How i can check Secondary NameNode is running or details of the Secondary NameNode?
by forum_admin
Fri Aug 01, 2014 12:24 am
Forum: Hadoop and Big Data
Topic: Pig Latin Diagnostic operator and UDF macro statement
Replies: 1
Views: 466

Pig Latin Diagnostic operator and UDF macro statement

Which are the Pig Latin Diagnostic operator? How i can look for the Physical and logical Plan details in Pig? Which are the UDF macro i can use in pig script? I want to know the use of this operator and statement.
by forum_admin
Fri Aug 01, 2014 12:20 am
Forum: Hadoop and Big Data
Topic: Hive Configuration Properties for Metastore and database
Replies: 1
Views: 498

Hive Configuration Properties for Metastore and database

How to configure Metastore configuration property in hive? How i can set for remote database or JDBC connectivity for my database in Hive configuration properties.
by forum_admin
Tue Jul 29, 2014 9:15 pm
Forum: Hadoop and Big Data
Topic: GenericOptionsParser, Tool, and ToolRunner in Hadoop
Replies: 1
Views: 573

GenericOptionsParser, Tool, and ToolRunner in Hadoop

what is GenericOptionsParser, Tool, and ToolRunner? What is the use of GenericOptionsParser, Tool, and ToolRunner in Hadoop?
by forum_admin
Tue Jul 29, 2014 4:23 am
Forum: Hadoop and Big Data
Topic: What is Hadoop Daemons? How many Daemon run on Hadoop?
Replies: 1
Views: 410

What is Hadoop Daemons? How many Daemon run on Hadoop?

What is Hadoop Daemons? How many Daemon run on Hadoop? How to check hadoop daemon are running?
e.g. command or UI to check namemonode/datanode/jobtracker/tasktracker are running on Hadoop cluster or machine
by forum_admin
Tue Jul 29, 2014 4:06 am
Forum: Hadoop and Big Data
Topic: Job Tracker in Hadoop Cluster
Replies: 1
Views: 383

Job Tracker in Hadoop Cluster

How many instances of JobTracker run on Hadoop? What Job Tracker will do in Hadoop Framework? What is task of JobTracker?
by forum_admin
Fri Jul 25, 2014 2:47 pm
Forum: Hadoop and Big Data
Topic: free community for Hadoop tests or Exam Practice
Replies: 1
Views: 495

free community for Hadoop tests or Exam Practice

are there any free Hadoop practice Test websites? let me know for free community for Hadoop tests for Developers and Administrators. same way free test for HBase and Hive and Pig.
by forum_admin
Thu Jul 24, 2014 3:54 am
Forum: Core Java, Scala, Python and Advanced Programming or development
Topic: How to write Cookies in Servlet?
Replies: 1
Views: 465

Re: How to write Cookies in Servlet?

Creates a cookie, a small amount of information sent by a servlet to a Web browser, saved by the browser, and later sent back to the server. A cookie's value can uniquely identify a client, so cookies are commonly used for session management. A cookie has a name, a single value, and optional attrib...
by forum_admin
Wed Jul 16, 2014 9:22 pm
Forum: Hadoop and Big Data
Topic: Welcome to Hadoop Post
Replies: 0
Views: 1118

Welcome to Hadoop Post

Hi, I created it for hadoop users. Please feel free to use it. To create new post you need to register in this forum but to for replying you no need to.

Go to advanced search