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duplicates in hive table

Last post by ram123 « Wed Jun 10, 2020 8:16 pm
Replies: 1
by forum_admin » Wed Jun 10, 2020 8:14 pm

1 Replies

505 Views

Last post by ram123 View the latest post
Wed Jun 10, 2020 8:16 pm
python ODBC kerberos Error

Last post by forum_admin « Thu Jul 26, 2018 8:18 pm
Replies: 1
by forum_admin » Thu Jul 26, 2018 8:15 pm

1 Replies

2359 Views

Last post by forum_admin View the latest post
Thu Jul 26, 2018 8:18 pm
javax.net.ssl.SSLException: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty

Last post by forum_admin « Tue Jun 12, 2018 7:50 pm
Replies: 1
by forum_admin » Tue Jun 12, 2018 7:49 pm

1 Replies

1603 Views

Last post by forum_admin View the latest post
Tue Jun 12, 2018 7:50 pm
Exception in thread "main" java.lang.RuntimeException: org.apache.tez.dag.api.SessionNotRunning: TezSession has already shutdown.

Last post by forum_admin « Fri May 25, 2018 12:49 am
Replies: 1
by forum_admin » Fri May 25, 2018 12:48 am

1 Replies

1550 Views

Last post by forum_admin View the latest post
Fri May 25, 2018 12:49 am
hive getting Hang after setting ACID property in HortonWorks

Last post by ramverma « Mon Mar 05, 2018 1:35 am
Replies: 3
by sachin23 » Sat Mar 03, 2018 12:57 am

3 Replies

3416 Views

Last post by ramverma View the latest post
Mon Mar 05, 2018 1:35 am
Where is hadoop logs in Hortonwork

Last post by ramverma « Sun Mar 04, 2018 3:53 am
Replies: 1
by hadoopuser » Sun Mar 04, 2018 3:51 am

1 Replies

1462 Views

Last post by ramverma View the latest post
Sun Mar 04, 2018 3:53 am
Hortonwork: java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space

Last post by sachin23 « Fri Mar 02, 2018 7:49 pm
Replies: 2
by ram123 » Fri Mar 02, 2018 7:45 pm

2 Replies

1756 Views

Last post by sachin23 View the latest post
Fri Mar 02, 2018 7:49 pm
Error: Failure while running task:java.lang.IllegalArgumentException: tez.runtime.io.sort.mb 4055 should be larger than 0 and should be less than the available task memory (MB):537

Last post by hadoopuser « Wed Feb 28, 2018 8:41 pm
Replies: 1
by ramverma » Wed Feb 28, 2018 8:30 pm

1 Replies

1343 Views

Last post by hadoopuser View the latest post
Wed Feb 28, 2018 8:41 pm
Hive shell is hanging in hortonwork

Last post by hadoopuser « Wed Feb 28, 2018 8:38 pm
Replies: 1
by ramverma » Wed Feb 28, 2018 8:33 pm

1 Replies

1623 Views

Last post by hadoopuser View the latest post
Wed Feb 28, 2018 8:38 pm
Permission denied: user=anonymous, access=WRITE, inode="/user/anonymous":hdfs:hdfs:drwxr-xr-x

Last post by hadoopuser « Wed Feb 28, 2018 8:36 pm
Replies: 1
by ramverma » Wed Feb 28, 2018 8:28 pm

1 Replies

1925 Views

Last post by hadoopuser View the latest post
Wed Feb 28, 2018 8:36 pm
[ :Unexpected operator in shell programming

Last post by sachin23 « Wed Feb 28, 2018 3:43 am
Replies: 2
by ram123 » Wed Feb 28, 2018 3:36 am

2 Replies

1282 Views

Last post by sachin23 View the latest post
Wed Feb 28, 2018 3:43 am
How to insert json datatypes from dataframe to sql table using Scala

Last post by hadoopuser « Mon Feb 26, 2018 2:35 am
Replies: 1
by ramverma » Mon Feb 26, 2018 2:31 am

1 Replies

1069 Views

Last post by hadoopuser View the latest post
Mon Feb 26, 2018 2:35 am
java.net.UnknownHostException: tcp/techops-hadoop-nonprod-ipa.aws-w-test.net

Last post by ramverma « Thu Feb 22, 2018 8:42 pm
Replies: 1
by hadoopuser » Thu Feb 22, 2018 8:38 pm

1 Replies

1163 Views

Last post by ramverma View the latest post
Thu Feb 22, 2018 8:42 pm
java.sql.SQLException: [Simba][HiveJDBCDriver](500310) Invalid operation: Unable to obtain Princpal Name for authenticat

Last post by hadoopuser « Thu Feb 22, 2018 12:08 am
Replies: 6
by ramverma » Thu Sep 10, 2015 7:38 pm

6 Replies

5828 Views

Last post by hadoopuser View the latest post
Thu Feb 22, 2018 12:08 am
The variance for this alert is 65MB which is 30% of the 217MB average (43MB is the limit)

Last post by ram123 « Wed Feb 21, 2018 7:12 pm
Replies: 2
by sachin23 » Wed Feb 21, 2018 7:08 pm

2 Replies

2197 Views

Last post by ram123 View the latest post
Wed Feb 21, 2018 7:12 pm
Service 'hdfs' check failed-From Ambari

Last post by hadoopuser « Wed Feb 21, 2018 6:36 pm
Replies: 1
by ramverma » Wed Feb 21, 2018 6:34 pm

1 Replies

1552 Views

Last post by hadoopuser View the latest post
Wed Feb 21, 2018 6:36 pm
Ambari Message: User: root is not allowed to impersonate admin

Last post by ram123 « Wed Feb 21, 2018 2:53 am
Replies: 2
by ram123 » Wed Feb 21, 2018 2:46 am

2 Replies

1318 Views

Last post by ram123 View the latest post
Wed Feb 21, 2018 2:53 am
Queue root.default already has 0 applications, cannot accept submission of application:

Last post by hadoopuser « Wed Feb 21, 2018 2:51 am
Replies: 1
by ram123 » Wed Feb 21, 2018 2:44 am

1 Replies

3100 Views

Last post by hadoopuser View the latest post
Wed Feb 21, 2018 2:51 am
terraform apply error while creating EC2 node on AWS

Last post by hadoopuser « Wed Feb 14, 2018 7:06 pm
Replies: 1
by ramverma » Wed Feb 07, 2018 7:46 pm

1 Replies

1187 Views

Last post by hadoopuser View the latest post
Wed Feb 14, 2018 7:06 pm
FAILED - RETRYING: Waiting for ambari-agents to register (200 retries left).

Last post by hadoopuser « Wed Feb 14, 2018 7:04 pm
Replies: 3
by hadoopuser » Wed Feb 14, 2018 6:57 pm

3 Replies

1291 Views

Last post by hadoopuser View the latest post
Wed Feb 14, 2018 7:04 pm
when calling the DescribeLoadBalancers operation: Signature expired

Last post by forum_admin « Wed Feb 07, 2018 7:43 pm
Replies: 1
by hadoopuser » Wed Feb 07, 2018 7:39 pm

1 Replies

981 Views

Last post by forum_admin View the latest post
Wed Feb 07, 2018 7:43 pm
Vagrant was unable to mount VirtualBox shared folders

Last post by hadoopuser « Tue Feb 06, 2018 11:17 pm
Replies: 3
by hadoopuser » Tue Feb 06, 2018 11:11 pm

3 Replies

1164 Views

Last post by hadoopuser View the latest post
Tue Feb 06, 2018 11:17 pm
I installed maven scala plugin but it don't show in maven project

Last post by hadoopuser « Sun Feb 04, 2018 8:00 am
Replies: 1
by forum_admin » Sun Feb 04, 2018 7:53 am

1 Replies

1011 Views

Last post by hadoopuser View the latest post
Sun Feb 04, 2018 8:00 am
try-with-resources is not supported in -source 1.5

Last post by dan1234 « Mon Jan 29, 2018 7:36 pm
Replies: 1
by user123 » Mon Jan 29, 2018 7:34 pm

1 Replies

1138 Views

Last post by dan1234 View the latest post
Mon Jan 29, 2018 7:36 pm
KrbException: Fail to create credential. (63) - No service creds for hive or impala jdbc connectivity

Last post by hadoopuser « Sat Jan 27, 2018 3:04 am
Replies: 2
by hadoopuser » Wed Jan 24, 2018 3:22 pm

2 Replies

3954 Views

Last post by hadoopuser View the latest post
Sat Jan 27, 2018 3:04 am
Hive query string case transformation

Last post by ramverma « Sat Jan 20, 2018 7:40 pm
Replies: 2
by hadoopuser » Sat Jan 20, 2018 7:36 pm

2 Replies

1155 Views

Last post by ramverma View the latest post
Sat Jan 20, 2018 7:40 pm
Hive Error Stack trace: ExitCodeException exitCode=1:

Last post by mike123 « Wed Jan 17, 2018 6:15 pm
Replies: 1
by ramverma » Wed Jan 17, 2018 6:08 pm

1 Replies

1224 Views

Last post by mike123 View the latest post
Wed Jan 17, 2018 6:15 pm
ssh not working for AWS cluster node WARNING: POSSIBLE DNS SPOOFING DETECTED!

Last post by mike123 « Wed Jan 17, 2018 6:12 pm
Replies: 2
by ramverma » Wed Jan 17, 2018 6:05 pm

2 Replies

1282 Views

Last post by mike123 View the latest post
Wed Jan 17, 2018 6:12 pm
hive jdbc error while connect to AWS kerberos cluster

Last post by hadoopuser « Wed Jan 17, 2018 4:40 am
Replies: 3
by hadoopuser » Wed Jan 17, 2018 3:35 am

3 Replies

1621 Views

Last post by hadoopuser View the latest post
Wed Jan 17, 2018 4:40 am
SASL negotiation failure javax.security.sasl.SaslException: GSS initiate failed

Last post by forum_admin « Wed Jan 17, 2018 4:36 am
Replies: 2
by forum_admin » Wed Jan 17, 2018 3:48 am

2 Replies

2009 Views

Last post by forum_admin View the latest post
Wed Jan 17, 2018 4:36 am
generic failure: GSSAPI Error: Unspecified GSS failure. Minor code may provide more information (No Kerberos credentials available (default cache: KCM:))

Last post by hadoopuser « Tue Jan 16, 2018 6:44 pm
Replies: 4
by hadoopuser » Sat Jan 13, 2018 1:10 am

4 Replies

2754 Views

Last post by hadoopuser View the latest post
Tue Jan 16, 2018 6:44 pm
java.sql.SQLException: [Simba][ImpalaJDBCDriver](500151) Error setting/closing session: Open Session Error.

Last post by forum_admin « Fri Jan 12, 2018 11:45 pm
Replies: 1
by forum_admin » Fri Jan 12, 2018 11:34 pm

1 Replies

3163 Views

Last post by forum_admin View the latest post
Fri Jan 12, 2018 11:45 pm
java.sql.SQLException: [Simba][ImpalaJDBCDriver](500310) Invalid operation: Unable to connect to server:;

Last post by Guest « Fri Jan 12, 2018 11:31 pm
Replies: 1
by hadoopuser » Fri Jan 12, 2018 9:53 pm

1 Replies

1341 Views

Last post by Guest View the latest post
Fri Jan 12, 2018 11:31 pm
Exception in thread "main" java.lang.NoSuchMethodError: org.apache.spark.internal.config.TypedConfigBuilder.checkValue

Last post by forum_admin « Thu Jan 04, 2018 6:12 am

by forum_admin » Thu Jan 04, 2018 6:12 am

0 Replies

2679 Views

Last post by forum_admin View the latest post
Thu Jan 04, 2018 6:12 am
org.apache.hadoop.hive.ql.metadata.HiveException(java.util.concurrent.ExecutionException: java.lang.NullPointerException)'

Last post by forum_admin « Sat Dec 30, 2017 5:12 pm
Replies: 2
by forum_admin » Sat Dec 30, 2017 5:09 pm

2 Replies

1112 Views

Last post by forum_admin View the latest post
Sat Dec 30, 2017 5:12 pm
hive doesn't change parquet schema

Last post by mike123 « Thu Dec 21, 2017 7:07 pm
Replies: 3
by mike123 » Thu Dec 21, 2017 6:46 pm

3 Replies

1927 Views

Last post by mike123 View the latest post
Thu Dec 21, 2017 7:07 pm
Impala out of memory in performance cluster

Last post by forum_admin « Mon Dec 18, 2017 7:59 pm
Replies: 3
by forum_admin » Mon Dec 18, 2017 1:52 am

3 Replies

1646 Views

Last post by forum_admin View the latest post
Mon Dec 18, 2017 7:59 pm
memory limit error in impala

Last post by forum_admin « Sun Dec 17, 2017 11:29 pm
Replies: 1
by forum_admin » Sun Dec 17, 2017 11:25 pm

1 Replies

998 Views

Last post by forum_admin View the latest post
Sun Dec 17, 2017 11:29 pm
Hive Error: Caused by: java.lang.NullPointerException at org.apache.hadoop.hive.ql.exec.FileSinkOperator.findWriterOffset(FileSinkOperator.java:761)

Last post by forum_admin « Wed May 31, 2017 12:09 am
Replies: 2
by forum_admin » Wed May 31, 2017 12:07 am

2 Replies

1611 Views

Last post by forum_admin View the latest post
Wed May 31, 2017 12:09 am
Hive FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: org.apache.thrift.transport.TTransportException:

Last post by forum_admin « Wed May 31, 2017 12:05 am
Replies: 2
by forum_admin » Wed May 31, 2017 12:02 am

2 Replies

2611 Views

Last post by forum_admin View the latest post
Wed May 31, 2017 12:05 am
Hive Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate

Last post by forum_admin « Wed May 31, 2017 12:00 am
Replies: 1
by forum_admin » Wed May 17, 2017 8:17 pm

1 Replies

1251 Views

Last post by forum_admin View the latest post
Wed May 31, 2017 12:00 am
sqoop error: com.teradata.connector.common.exception.ConnectorException: index outof boundary

Last post by Guest « Sat Oct 01, 2016 7:52 pm
Replies: 1
by forum_admin » Wed Apr 06, 2016 6:29 pm

1 Replies

3856 Views

Last post by Guest View the latest post
Sat Oct 01, 2016 7:52 pm
What are the challenges you faced in hive hadoop developement

Last post by Guest « Sat Sep 24, 2016 10:22 pm
Replies: 2
by forum_admin » Sat Sep 24, 2016 8:58 pm

2 Replies

4323 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:22 pm
Parquest vs ORC

Last post by Guest « Sat Sep 24, 2016 10:16 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 8:59 pm

1 Replies

1212 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:16 pm
Map reduce performance tunning

Last post by Guest « Sat Sep 24, 2016 10:14 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:01 pm

1 Replies

1169 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:14 pm
Hive performance tuning

Last post by Guest « Sat Sep 24, 2016 10:12 pm
Replies: 2
by forum_admin » Sat Sep 24, 2016 9:03 pm

2 Replies

1363 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:12 pm
INSERT operation in hive partition table

Last post by Guest « Sat Sep 24, 2016 10:07 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:04 pm

1 Replies

1383 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:07 pm
Advantages and disadvantages of using map side join in hive

Last post by Guest « Sat Sep 24, 2016 10:05 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:05 pm

1 Replies

1384 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:05 pm
left semi join vs simple join in hive

Last post by Guest « Sat Sep 24, 2016 10:04 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:07 pm

1 Replies

1165 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:04 pm
order by vs sort by vs cluster by vs distributed by in hive

Last post by Guest « Sat Sep 24, 2016 10:02 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:08 pm

1 Replies

1700 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:02 pm
Query writing steps for better performance in hive

Last post by Guest « Sat Sep 24, 2016 10:01 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:09 pm

1 Replies

1201 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:01 pm
Sqoop performance tuning

Last post by Guest « Sat Sep 24, 2016 10:00 pm
Replies: 3
by forum_admin » Sat Sep 24, 2016 9:09 pm

3 Replies

1508 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 10:00 pm
Kafka performance tunning

Last post by Guest « Sat Sep 24, 2016 9:57 pm
Replies: 3
by forum_admin » Sat Sep 24, 2016 9:10 pm

3 Replies

1293 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 9:57 pm
When kafka delete message?

Last post by Guest « Sat Sep 24, 2016 9:48 pm
Replies: 2
by forum_admin » Sat Sep 24, 2016 9:13 pm

2 Replies

1217 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 9:48 pm
Delete kafka topic manually

Last post by Guest « Sat Sep 24, 2016 9:45 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:12 pm

1 Replies

1158 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 9:45 pm
how to delete the message from a Kafka broker after consuming it?

Last post by Guest « Sat Sep 24, 2016 9:44 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:12 pm

1 Replies

1148 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 9:44 pm
what is WAL and Hlog in Hbase?

Last post by Guest « Sat Sep 24, 2016 9:40 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:14 pm

1 Replies

1149 Views

Last post by Guest View the latest post
Sat Sep 24, 2016 9:40 pm
what is Compaction in HBase?

Last post by hadoopdevloper « Sat Sep 24, 2016 9:38 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:15 pm

1 Replies

1125 Views

Last post by hadoopdevloper View the latest post
Sat Sep 24, 2016 9:38 pm
how to import streaming data from Kafka into HBase

Last post by hadoopdevloper « Sat Sep 24, 2016 9:37 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:16 pm

1 Replies

1137 Views

Last post by hadoopdevloper View the latest post
Sat Sep 24, 2016 9:37 pm
how to Load multiple files in Pig?

Last post by hadoopdevloper « Sat Sep 24, 2016 9:32 pm
Replies: 1
by forum_admin » Sat Sep 24, 2016 9:17 pm

1 Replies

1153 Views

Last post by hadoopdevloper View the latest post
Sat Sep 24, 2016 9:32 pm
where to use distributed cache in hadoop map reduce?

Last post by forum_admin « Sat Sep 24, 2016 9:02 pm

by forum_admin » Sat Sep 24, 2016 9:02 pm

0 Replies

2532 Views

Last post by forum_admin View the latest post
Sat Sep 24, 2016 9:02 pm
what is sliding window in spark?

Last post by forum_admin « Sat Sep 24, 2016 9:00 pm

by forum_admin » Sat Sep 24, 2016 9:00 pm

0 Replies

2423 Views

Last post by forum_admin View the latest post
Sat Sep 24, 2016 9:00 pm
ERROR 08001 in splicemachine

Last post by ramverma « Tue Nov 10, 2015 11:46 pm

by ramverma » Tue Nov 10, 2015 11:46 pm

0 Replies

3335 Views

Last post by ramverma View the latest post
Tue Nov 10, 2015 11:46 pm
hive command is not working for users but it is working as a root

Last post by ramverma « Tue Nov 10, 2015 10:36 pm

by ramverma » Tue Nov 10, 2015 10:36 pm

0 Replies

3147 Views

Last post by ramverma View the latest post
Tue Nov 10, 2015 10:36 pm
hadoop command is working at users level but saying No such file or directory

Last post by ramverma « Tue Nov 10, 2015 10:32 pm

by ramverma » Tue Nov 10, 2015 10:32 pm

0 Replies

3061 Views

Last post by ramverma View the latest post
Tue Nov 10, 2015 10:32 pm
Hive Error: ParseException line 10:43 mismatched input '<EOF>' expecting StringLiteral near 'BY' in table row format's field separator

Last post by Guest « Thu Nov 05, 2015 9:45 pm
Replies: 1
by ramverma » Wed Nov 04, 2015 10:51 pm

1 Replies

5207 Views

Last post by Guest View the latest post
Thu Nov 05, 2015 9:45 pm
What are the hardware requirements for a Hadoop cluster (primary and secondary namenodes and datanodes)?

Last post by Jim waugh « Sat Oct 10, 2015 8:43 pm
Replies: 1
by user123 » Wed Sep 30, 2015 10:48 pm

1 Replies

1306 Views

Last post by Jim waugh View the latest post
Sat Oct 10, 2015 8:43 pm
how to Configure Kerberos Authentication in Hortonworks Hadoop HDP 2.2?

Last post by Guest « Wed Sep 30, 2015 11:45 pm
Replies: 2
by mina1234 » Wed Sep 30, 2015 11:06 pm

2 Replies

1745 Views

Last post by Guest View the latest post
Wed Sep 30, 2015 11:45 pm
migrate data Using flume from mysql to Cassandra

Last post by snehalshah « Wed Sep 30, 2015 11:41 pm
Replies: 1
by mina1234 » Wed Sep 30, 2015 11:07 pm

1 Replies

1409 Views

Last post by snehalshah View the latest post
Wed Sep 30, 2015 11:41 pm
MS thesis on Big Data in health care and medical applications

Last post by snehalshah « Wed Sep 30, 2015 11:29 pm

by snehalshah » Wed Sep 30, 2015 11:29 pm

0 Replies

2864 Views

Last post by snehalshah View the latest post
Wed Sep 30, 2015 11:29 pm
which jar files of hadoop-2x should be added for MapReduce program for eclipse?

Last post by snehalshah « Wed Sep 30, 2015 11:28 pm
Replies: 1
by mina1234 » Wed Sep 30, 2015 11:12 pm

1 Replies

1369 Views

Last post by snehalshah View the latest post
Wed Sep 30, 2015 11:28 pm
NLP API or Utility for Hadoop

Last post by snehalshah « Wed Sep 30, 2015 11:27 pm

by snehalshah » Wed Sep 30, 2015 11:27 pm

0 Replies

2737 Views

Last post by snehalshah View the latest post
Wed Sep 30, 2015 11:27 pm
how to Load XML data into HBase using MapReduce?

Last post by snehalshah « Wed Sep 30, 2015 11:26 pm

by snehalshah » Wed Sep 30, 2015 11:26 pm

0 Replies

2968 Views

Last post by snehalshah View the latest post
Wed Sep 30, 2015 11:26 pm
predict an application execution time in Hadoop Yarn?

Last post by snehalshah « Wed Sep 30, 2015 11:25 pm

by snehalshah » Wed Sep 30, 2015 11:25 pm

0 Replies

2699 Views

Last post by snehalshah View the latest post
Wed Sep 30, 2015 11:25 pm
Hadoop MapReduce implementation of Partitioners and Combiners?

Last post by mina1234 « Wed Sep 30, 2015 11:19 pm

by mina1234 » Wed Sep 30, 2015 11:19 pm

0 Replies

2706 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:19 pm
How to Index and Search Multilingual Documents in Hadoop?

Last post by mina1234 « Wed Sep 30, 2015 11:16 pm
Replies: 1
by mina1234 » Wed Sep 30, 2015 11:16 pm

1 Replies

1541 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:16 pm
Running MapReduce Application on Hadoop using Eclipse IDE takes less time than running as JAR file on Terminal. why?

Last post by mina1234 « Wed Sep 30, 2015 11:14 pm

by mina1234 » Wed Sep 30, 2015 11:14 pm

0 Replies

2900 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:14 pm
error "Name node is in safe mode"

Last post by mina1234 « Wed Sep 30, 2015 11:13 pm
Replies: 1
by mina1234 » Wed Sep 30, 2015 11:13 pm

1 Replies

1386 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:13 pm
setting up a hadoop cluster in AWS

Last post by mina1234 « Wed Sep 30, 2015 11:11 pm

by mina1234 » Wed Sep 30, 2015 11:11 pm

0 Replies

3025 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:11 pm
upgrade Hadoop-1.2.1 to Hadoop-2.6.0

Last post by mina1234 « Wed Sep 30, 2015 11:10 pm
Replies: 1
by mina1234 » Wed Sep 30, 2015 11:10 pm

1 Replies

1373 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:10 pm
Job scheduling in Hadoop for Heterogeneous cluster

Last post by mina1234 « Wed Sep 30, 2015 11:10 pm
Replies: 1
by mina1234 » Wed Sep 30, 2015 11:10 pm

1 Replies

1342 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:10 pm
Map reduce total word count help

Last post by mina1234 « Wed Sep 30, 2015 11:09 pm
Replies: 1
by mina1234 » Wed Sep 30, 2015 11:09 pm

1 Replies

1413 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:09 pm
installation and configuration on latest Cloudera hadoop CDH5.4.0

Last post by mina1234 « Wed Sep 30, 2015 11:09 pm

by mina1234 » Wed Sep 30, 2015 11:09 pm

0 Replies

2870 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:09 pm
Hadoop vs Teradata vs ETL tools

Last post by mina1234 « Wed Sep 30, 2015 11:08 pm

by mina1234 » Wed Sep 30, 2015 11:08 pm

0 Replies

2785 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:08 pm
data distribution and load balancing in Hadoop Cluster

Last post by mina1234 « Wed Sep 30, 2015 11:05 pm

by mina1234 » Wed Sep 30, 2015 11:05 pm

0 Replies

2818 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:05 pm
How to access value of variable in Driver class which has been declared and modified inside Mapper class?

Last post by mina1234 « Wed Sep 30, 2015 11:05 pm

by mina1234 » Wed Sep 30, 2015 11:05 pm

0 Replies

2707 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:05 pm
namenode -format error

Last post by mina1234 « Wed Sep 30, 2015 11:01 pm
Replies: 1
by user123 » Wed Sep 30, 2015 10:56 pm

1 Replies

2388 Views

Last post by mina1234 View the latest post
Wed Sep 30, 2015 11:01 pm
pairs and stripes concept in Bigdata

Last post by user123 « Wed Sep 30, 2015 11:00 pm

by user123 » Wed Sep 30, 2015 11:00 pm

0 Replies

2783 Views

Last post by user123 View the latest post
Wed Sep 30, 2015 11:00 pm
Hive Error: Failed with exception java.io.IOException:org.apache.hadoop.security.AccessControlException:

Last post by Guest « Wed Sep 30, 2015 10:59 pm

by user123 » Wed Sep 30, 2015 10:59 pm

0 Replies

2740 Views

Last post by Guest View the latest post
Wed Sep 30, 2015 10:59 pm
Video Streaming using Hadoop?

Last post by user123 « Wed Sep 30, 2015 10:57 pm

by user123 » Wed Sep 30, 2015 10:57 pm

0 Replies

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how to Install Cloudera Hadoop CDH5 on Ubuntu?

Last post by user123 « Wed Sep 30, 2015 10:54 pm

by user123 » Wed Sep 30, 2015 10:54 pm

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Who is responsible for splitting the big data junk into blocks and store on Data nodes?

Last post by user123 « Wed Sep 30, 2015 10:50 pm

by user123 » Wed Sep 30, 2015 10:50 pm

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Wed Sep 30, 2015 10:50 pm
Scheduling job

Last post by user123 « Wed Sep 30, 2015 10:47 pm

by user123 » Wed Sep 30, 2015 10:47 pm

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getmerge command in Hadoop File System

Last post by Guest « Tue Sep 29, 2015 6:52 pm
Replies: 3
by mohit123 » Wed Sep 24, 2014 12:14 am

3 Replies

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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

Last post by forum_admin « Wed Sep 23, 2015 10:29 pm
Replies: 1
by mina1234 » Wed Sep 23, 2015 5:53 pm

1 Replies

1631 Views

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java.io.IOException: Could not load jar /usr/lib/sqoop-connector-teradata-1.4c5/sqoop-connector-teradata-1.4c5.jar into JVM

Last post by snehalshah « Wed Sep 23, 2015 7:23 pm
Replies: 1
by mina1234 » Wed Sep 23, 2015 6:14 pm

1 Replies

1876 Views

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Wed Sep 23, 2015 7:23 pm
install hadoop in Pseudo-Distributed Mode

Last post by snehalshah « Wed Sep 23, 2015 5:19 pm
Replies: 1
by mohit123 » Tue Sep 23, 2014 10:09 pm

1 Replies

1567 Views

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Wed Sep 23, 2015 5:19 pm
queue command in Hadoop

Last post by Guest « Wed Sep 23, 2015 4:59 pm
Replies: 1
by mohit123 » Wed Sep 24, 2014 12:48 am

1 Replies

1533 Views

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Wed Sep 23, 2015 4:59 pm
pipes command in Hadoop

Last post by snehalshah « Wed Sep 23, 2015 4:58 pm
Replies: 2
by mohit123 » Wed Sep 24, 2014 12:47 am

2 Replies

1572 Views

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Wed Sep 23, 2015 4:58 pm
hdfs' user created in 'users' group instead 'hdfs' group in cloudera hadoop

Last post by Guest « Tue Sep 22, 2015 11:30 pm

by mina1234 » Tue Sep 22, 2015 11:30 pm

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2750 Views

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Tue Sep 22, 2015 11:30 pm
under replicated blocks in cloudera hadoop cluster

Last post by snehalshah « Tue Sep 22, 2015 11:05 pm

by snehalshah » Tue Sep 22, 2015 11:05 pm

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Tue Sep 22, 2015 11:05 pm
Error: com.teradata.hadoop.exception.TeradataHadoopException: com.teradata.jdbc.jdbc_4.util.JDBCException

Last post by snehalshah « Tue Sep 22, 2015 11:00 pm

by snehalshah » Tue Sep 22, 2015 11:00 pm

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Tue Sep 22, 2015 11:00 pm
java.sql.SQLException: [Simba][HiveJDBCDriver](500310) Invalid operation: Unable to obtain Princpal Name for authenticat

Last post by Guest « Tue Sep 22, 2015 10:59 pm

by snehalshah » Tue Sep 22, 2015 10:59 pm

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Tue Sep 22, 2015 10:59 pm
Could not load ERROR sqoop.Sqoop: db driver class: net.sourceforge.jtds.jdbc.Driver

Last post by snehalshah « Tue Sep 22, 2015 10:57 pm

by snehalshah » Tue Sep 22, 2015 10:57 pm

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2978 Views

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Tue Sep 22, 2015 10:57 pm
org.apache.hadoop.fs.ChecksumException: Checksum error: file:/root/out_merge.txt at 0 exp: -289599598 got: 1159585454

Last post by Guest « Sat Sep 19, 2015 2:59 am
Replies: 1
by snehalshah » Fri Sep 18, 2015 9:25 pm

1 Replies

2287 Views

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Sat Sep 19, 2015 2:59 am
sqoop export Error: com.teradata.connector.common.exception.ConnectorException: index outof boundary

Last post by snehalshah « Fri Sep 18, 2015 9:05 pm
Replies: 1
by snehalshah » Fri Sep 18, 2015 9:05 pm

1 Replies

4860 Views

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Fri Sep 18, 2015 9:05 pm
exec: /usr/lib/hadoop/bin/hadoop: cannot execute: No such file or directory

Last post by Guest « Fri Sep 18, 2015 1:32 am
Replies: 2
by ramverma » Thu Sep 17, 2015 8:19 pm

2 Replies

2124 Views

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Caused by: java.sql.SQLException: [Teradata JDBC Driver] [TeraJDBC 15.00.00.28] [Error 1000] [SQLState 08S01] Login failure for Connection to localhost

Last post by snehalshah « Thu Sep 17, 2015 9:18 pm
Replies: 1
by snehalshah » Thu Sep 17, 2015 9:18 pm

1 Replies

1905 Views

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Thu Sep 17, 2015 9:18 pm
Error: java.lang.ArrayIndexOutOfBoundsException: 7 at com.teradata.connector.hdfs.serde.HdfsTextSerDe.deserialize(HdfsTextSerDe.java:293)

Last post by snehalshah « Thu Sep 17, 2015 9:02 pm

by snehalshah » Thu Sep 17, 2015 9:02 pm

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3154 Views

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Thu Sep 17, 2015 9:02 pm
tool.ImportTool: Encountered IOException running imporjob: com.teradata.connector.common.exception.ConnectorException: Malformed \uxxxx encoding

Last post by Johnson james « Thu Sep 17, 2015 8:44 pm
Replies: 1
by ramverma » Thu Sep 17, 2015 8:09 pm

1 Replies

1491 Views

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Thu Sep 17, 2015 8:44 pm
Sqoop: java.lang.RuntimeException: Table test_table does not have primary key. Please use --split-by argument if applicable

Last post by ramverma « Thu Sep 17, 2015 8:28 pm

by ramverma » Thu Sep 17, 2015 8:28 pm

0 Replies

2821 Views

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Thu Sep 17, 2015 8:28 pm
java.sql.SQLException: [Teradata Database] [TeraJDBC 15.00.00.28] [Error 8017] [SQLState 28000] The UserId, Password or Account is invalid

Last post by ramverma « Thu Sep 17, 2015 7:14 pm
Replies: 1
by ramverma » Thu Sep 17, 2015 7:14 pm

1 Replies

1907 Views

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Thu Sep 17, 2015 7:14 pm
Warning message: Can't connect to the database with given credentials: No suitable driver found for jdbc:teradata:

Last post by Guest « Thu Sep 17, 2015 7:09 pm
Replies: 1
by mohit123 » Tue Sep 15, 2015 6:13 pm

1 Replies

1469 Views

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Thu Sep 17, 2015 7:09 pm
Sqoop2 error: Exception: org.codehaus.groovy.control.MultipleCompilationErrorsException Message: startup failed

Last post by Guest « Thu Sep 17, 2015 7:06 pm
Replies: 1
by mohit123 » Tue Sep 15, 2015 6:01 pm

1 Replies

1569 Views

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Thu Sep 17, 2015 7:06 pm
Sqoop: java.lang.RuntimeException: Table Table_Credit_Agreement does not have primary key. Please use --split-by argument if applicable

Last post by mohit123 « Thu Sep 17, 2015 6:56 pm

by mohit123 » Thu Sep 17, 2015 6:56 pm

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Thu Sep 17, 2015 6:56 pm
Error: com.teradata.hadoop.exception.TeradataHadoopException: com.teradata.jdbc.jdbc_4.util.JDBCException:

Last post by snehalshah « Thu Sep 10, 2015 7:47 pm
Replies: 1
by ramverma » Thu Sep 10, 2015 7:39 pm

1 Replies

1285 Views

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Thu Sep 10, 2015 7:47 pm
"No suitable driver found for jdbc:derby" error for sqoop2 upgrade

Last post by ramverma « Thu Sep 10, 2015 5:39 pm
Replies: 1
by ramverma » Thu Sep 10, 2015 5:39 pm

1 Replies

2001 Views

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Thu Sep 10, 2015 5:39 pm
Could not load db driver class: net.sourceforge.jtds.jdbc.Driver in cloudera distribution

Last post by ramverma « Thu Sep 10, 2015 5:31 pm

by ramverma » Thu Sep 10, 2015 5:31 pm

0 Replies

2714 Views

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Thu Sep 10, 2015 5:31 pm
put: unexpected URISyntaxException

Last post by ramverma « Tue Sep 08, 2015 6:53 pm
Replies: 1
by ramverma » Tue Sep 08, 2015 6:53 pm

1 Replies

4269 Views

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Tue Sep 08, 2015 6:53 pm
java.io.IOException: Header doesn't contain versioninfo

Last post by forum_admin « Tue Sep 08, 2015 6:14 pm
Replies: 1
by forum_admin » Tue Sep 08, 2015 6:14 pm

1 Replies

4828 Views

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Tue Sep 08, 2015 6:14 pm
org/apache/hadoop/fs/crypto/CryptoFSDataOutputStream

Last post by ramverma « Tue Sep 08, 2015 6:05 pm

by ramverma » Tue Sep 08, 2015 6:05 pm

0 Replies

2494 Views

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Tue Sep 08, 2015 6:05 pm
openstack install: die 255 'ceilometer-api did not start

Last post by Vectoren « Wed Apr 22, 2015 3:42 pm
Replies: 3
by forum_admin » Wed Mar 18, 2015 11:59 pm

3 Replies

2442 Views

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Wed Apr 22, 2015 3:42 pm
what is speculative execution?

Last post by Guest « Sun Apr 19, 2015 10:39 pm
Replies: 1
by mohit123 » Sun Apr 19, 2015 10:30 pm

1 Replies

1278 Views

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Sun Apr 19, 2015 10:39 pm
where I should use map join or reduce join?

Last post by Guest « Sun Apr 19, 2015 10:36 pm
Replies: 2
by mohit123 » Sun Apr 19, 2015 10:32 pm

2 Replies

1408 Views

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Sun Apr 19, 2015 10:36 pm
sequence file format and avro file

Last post by Guest « Sun Apr 19, 2015 6:00 pm
Replies: 2
by mohit123 » Sun Apr 19, 2015 5:54 pm

2 Replies

1665 Views

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Sun Apr 19, 2015 6:00 pm
set no.of reducers =0 and identity reducer

Last post by Guest « Sun Apr 19, 2015 5:29 pm
Replies: 2
by ramverma » Sun Apr 19, 2015 5:04 pm

2 Replies

1070 Views

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Sun Apr 19, 2015 5:29 pm
mapper spill and reducer spill

Last post by Guest « Sun Apr 19, 2015 5:26 pm
Replies: 1
by ramverma » Sun Apr 19, 2015 5:02 pm

1 Replies

1094 Views

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Sun Apr 19, 2015 5:26 pm
ERROR 1064 (42000): You have an error in your SQL

Last post by Guest « Thu Apr 09, 2015 5:40 pm
Replies: 1
by mohit123 » Thu Apr 09, 2015 5:36 pm

1 Replies

3964 Views

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Error: org.apache.hadoop.hive.ql.exec.MapRedTask

Last post by Guest « Thu Apr 09, 2015 5:28 pm
Replies: 1
by mohit123 » Thu Apr 09, 2015 5:11 pm

1 Replies

1346 Views

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catalina.sh: No such file or directory

Last post by Guest « Thu Apr 09, 2015 5:25 pm
Replies: 1
by mohit123 » Thu Apr 09, 2015 5:10 pm

1 Replies

1581 Views

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Thu Apr 09, 2015 5:25 pm
Datanode Uuid unassigned

Last post by Guest « Wed Apr 08, 2015 9:11 pm
Replies: 1
by forum_admin » Wed Apr 08, 2015 8:57 pm

1 Replies

1493 Views

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

Last post by Guest « Wed Apr 08, 2015 9:09 pm
Replies: 1
by forum_admin » Wed Apr 08, 2015 9:05 pm

1 Replies

1919 Views

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Wed Apr 08, 2015 9:09 pm
org.apache.hadoop.mapreduce.lib.input.InvalidInputException

Last post by Guest « Thu Apr 02, 2015 7:23 pm
Replies: 1
by forum_admin » Thu Apr 02, 2015 7:22 pm

1 Replies

1444 Views

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Thu Apr 02, 2015 7:23 pm
error for ssh in knife solo clean

Last post by Guest « Wed Apr 01, 2015 6:51 pm
Replies: 1
by forum_admin » Wed Apr 01, 2015 6:44 pm

1 Replies

1284 Views

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

Last post by GuestUSA « Wed Apr 01, 2015 6:49 pm
Replies: 1
by forum_admin » Wed Apr 01, 2015 6:47 pm

1 Replies

1502 Views

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Wed Apr 01, 2015 6:49 pm
Incompatible clusterIDs in /hadoop/02/datanode1: namenode

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by forum_admin » Wed Apr 01, 2015 6:42 pm

0 Replies

2736 Views

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exception while try to create hbase table

Last post by Guest « Sun Mar 29, 2015 6:03 pm
Replies: 1
by forum_admin » Sun Mar 29, 2015 1:53 am

1 Replies

1446 Views

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

Last post by forum_admin « Sun Mar 29, 2015 1:37 am
Replies: 1
by forum_admin » Sun Mar 29, 2015 1:34 am

1 Replies

1317 Views

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Sun Mar 29, 2015 1:37 am
Preparation for the Cloudera Hadoop developer certificate

Last post by Amitysoft14 « Tue Mar 24, 2015 7:21 am
Replies: 4
by forum_admin » Sat Oct 25, 2014 1:41 am

4 Replies

2788 Views

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Tue Mar 24, 2015 7:21 am
Case-Sensitive Catalog Query error in sqoop

Last post by O4enVazhnaiaPersona « Wed Mar 11, 2015 4:32 pm
Replies: 2
by mohit123 » Sat Oct 25, 2014 12:03 am

2 Replies

2087 Views

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Wed Mar 11, 2015 4:32 pm
ERROR org.apache.hadoop.hdfs.server.datanode.DataNode

Last post by Guest « Fri Dec 05, 2014 1:07 am
Replies: 1
by mohit123 » Fri Dec 05, 2014 12:57 am

1 Replies

2199 Views

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Small files and HDFS blocks in Hadoop

Last post by forum_admin « Thu Dec 04, 2014 12:30 am
Replies: 1
by netra virani » Sat Oct 04, 2014 11:17 pm

1 Replies

2037 Views

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Thu Dec 04, 2014 12:30 am
when to use nullwritable in hadoop Map Reduce?

Last post by Guest « Tue Nov 11, 2014 12:15 am
Replies: 1
by mohit123 » Tue Nov 11, 2014 12:02 am

1 Replies

1443 Views

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Tue Nov 11, 2014 12:15 am
difference between 0 reducer and identity reducer in hadoop

Last post by Guest « Tue Nov 11, 2014 12:09 am
Replies: 2
by mohit123 » Tue Nov 11, 2014 12:00 am

2 Replies

1887 Views

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Tue Nov 11, 2014 12:09 am
points to consider for using Sqoop

Last post by Guest « Sat Oct 25, 2014 12:40 am
Replies: 1
by forum_admin » Sat Oct 25, 2014 12:36 am

1 Replies

1365 Views

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Sat Oct 25, 2014 12:40 am
error during Exporting the MySQL data using Sqoop

Last post by Guest « Sat Oct 25, 2014 12:33 am
Replies: 1
by mohit123 » Sat Oct 25, 2014 12:29 am

1 Replies

1327 Views

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getting Communications link failure error for sqoop

Last post by forum_admin « Sat Oct 25, 2014 12:18 am
Replies: 1
by mohit123 » Fri Oct 24, 2014 11:59 pm

1 Replies

1554 Views

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Sat Oct 25, 2014 12:18 am
troubleshoot data when importing from MySql to Hive

Last post by Guest « Sat Oct 25, 2014 12:16 am
Replies: 1
by mohit123 » Sat Oct 25, 2014 12:09 am

1 Replies

1398 Views

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Sat Oct 25, 2014 12:16 am
error while running sqoop import command

Last post by Guest « Sat Oct 25, 2014 12:07 am
Replies: 3
by mohit123 » Thu Oct 02, 2014 12:06 am

3 Replies

2629 Views

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Deamons are running however MapReduce job not Running

Last post by Guest « Tue Oct 14, 2014 3:46 am
Replies: 1
by forum_admin » Tue Oct 14, 2014 3:43 am

1 Replies

1472 Views

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Tue Oct 14, 2014 3:46 am
Administration Commands in Hadoop

Last post by Guest « Wed Sep 24, 2014 6:32 pm
Replies: 1
by mohit123 » Wed Sep 24, 2014 12:50 am

1 Replies

1433 Views

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version,CLASSNAME, classpath command in Hadoop

Last post by mohit123 « Wed Sep 24, 2014 12:49 am
Replies: 1
by mohit123 » Wed Sep 24, 2014 12:49 am

1 Replies

1434 Views

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Wed Sep 24, 2014 12:49 am
job command in Hadoop

Last post by mohit123 « Wed Sep 24, 2014 12:47 am

by mohit123 » Wed Sep 24, 2014 12:47 am

0 Replies

2019 Views

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Wed Sep 24, 2014 12:47 am
jar command in Hadoop

Last post by mohit123 « Wed Sep 24, 2014 12:46 am
Replies: 1
by mohit123 » Wed Sep 24, 2014 12:46 am

1 Replies

1549 Views

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Wed Sep 24, 2014 12:46 am
fetchdt command in Hadoop

Last post by mohit123 « Wed Sep 24, 2014 12:46 am

by mohit123 » Wed Sep 24, 2014 12:46 am

0 Replies

1897 Views

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fs command in Hadoop

Last post by mohit123 « Wed Sep 24, 2014 12:45 am
Replies: 1
by mohit123 » Wed Sep 24, 2014 12:45 am

1 Replies

1647 Views

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distcp command in hadoop

Last post by mohit123 « Wed Sep 24, 2014 12:44 am
Replies: 1
by mohit123 » Wed Sep 24, 2014 12:44 am

1 Replies

1593 Views

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Wed Sep 24, 2014 12:44 am
archive command in hadoop

Last post by mohit123 « Wed Sep 24, 2014 12:41 am

by mohit123 » Wed Sep 24, 2014 12:41 am

0 Replies

1796 Views

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Wed Sep 24, 2014 12:41 am
What are the Generic Options in Hadoop Command?

Last post by mohit123 « Wed Sep 24, 2014 12:41 am

by mohit123 » Wed Sep 24, 2014 12:41 am

0 Replies

1853 Views

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Wed Sep 24, 2014 12:41 am
How to invoke hadoop commands on terminal?

Last post by mohit123 « Wed Sep 24, 2014 12:37 am

by mohit123 » Wed Sep 24, 2014 12:37 am

0 Replies

1983 Views

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Wed Sep 24, 2014 12:37 am
touchz command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:35 am

by mohit123 » Wed Sep 24, 2014 12:35 am

0 Replies

1954 Views

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text command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:34 am

by mohit123 » Wed Sep 24, 2014 12:34 am

0 Replies

1792 Views

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test command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:33 am

by mohit123 » Wed Sep 24, 2014 12:33 am

0 Replies

1852 Views

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stat command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:31 am

by mohit123 » Wed Sep 24, 2014 12:31 am

0 Replies

1832 Views

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setrep command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:24 am

by mohit123 » Wed Sep 24, 2014 12:24 am

0 Replies

1856 Views

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rm and rmr command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:20 am
Replies: 1
by mohit123 » Wed Sep 24, 2014 12:20 am

1 Replies

2013 Views

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Wed Sep 24, 2014 12:20 am
expunge command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:13 am

by mohit123 » Wed Sep 24, 2014 12:13 am

0 Replies

1753 Views

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du and dus command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:13 am

by mohit123 » Wed Sep 24, 2014 12:13 am

0 Replies

2219 Views

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moveFromLocal and moveToLocal command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:12 am

by mohit123 » Wed Sep 24, 2014 12:12 am

0 Replies

1924 Views

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count File System shell command in Hadoop

Last post by mohit123 « Wed Sep 24, 2014 12:11 am

by mohit123 » Wed Sep 24, 2014 12:11 am

0 Replies

1928 Views

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copyFromLocal and copyToLocal command in Hadoop File System

Last post by mohit123 « Wed Sep 24, 2014 12:08 am

by mohit123 » Wed Sep 24, 2014 12:08 am

0 Replies

1913 Views

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FS (File System) shell commands in Hadoop

Last post by mohit123 « Wed Sep 24, 2014 12:06 am

by mohit123 » Wed Sep 24, 2014 12:06 am

0 Replies

1827 Views

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File System (FS) shell in Hadoop

Last post by mohit123 « Tue Sep 23, 2014 10:43 pm

by mohit123 » Tue Sep 23, 2014 10:43 pm

0 Replies

1989 Views

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Tue Sep 23, 2014 10:43 pm
install hadoop in Local (Standalone) Mode

Last post by mohit123 « Tue Sep 23, 2014 10:08 pm

by mohit123 » Tue Sep 23, 2014 10:08 pm

0 Replies

1737 Views

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structured data vs unstructured data

Last post by Guest « Tue Sep 23, 2014 8:37 pm
Replies: 1
by mohit123 » Tue Sep 23, 2014 1:19 am

1 Replies

1402 Views

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Why hadoop is Fault Tolerance?

Last post by Guest « Tue Sep 23, 2014 8:30 pm
Replies: 1
by mohit123 » Tue Sep 23, 2014 1:20 am

1 Replies

1286 Views

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throughput for Data stored on HDFS

Last post by Guest « Tue Sep 23, 2014 8:25 pm
Replies: 1
by mohit123 » Tue Sep 23, 2014 1:28 am

1 Replies

1227 Views

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What is a daemon in Hadoop?

Last post by Guest « Tue Sep 23, 2014 8:21 pm
Replies: 1
by mohit123 » Tue Sep 23, 2014 1:29 am

1 Replies

1381 Views

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What is a ‘block’ in HDFS?

Last post by Guest « Tue Sep 23, 2014 8:11 pm
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by mohit123 » Tue Sep 23, 2014 1:32 am

1 Replies

1426 Views

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How indexing is done in HDFS?

Last post by Guest « Tue Sep 23, 2014 8:08 pm
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by mohit123 » Tue Sep 23, 2014 1:33 am

1 Replies

1413 Views

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Tue Sep 23, 2014 8:08 pm
If a data Node is full how it’s identified by hadoop?

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by mohit123 » Tue Sep 23, 2014 1:34 am

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increase the datanodes in hadoop cluster

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by mohit123 » Tue Sep 23, 2014 1:35 am

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Tue Sep 23, 2014 8:03 pm
What is a rack?

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by mohit123 » Tue Sep 23, 2014 1:36 am

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Gen1 and Gen2 Hadoop with regards to the Namenode

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by mohit123 » Tue Sep 23, 2014 1:42 am

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two types of ‘writes’ in HDFS

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by mohit123 » Tue Sep 23, 2014 1:43 am

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Tue Sep 23, 2014 7:47 pm
how the Text input format works in Hadoop MapReduce

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by mohit123 » Tue Sep 23, 2014 1:54 am

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Tue Sep 23, 2014 7:44 pm
What is SequenceFile Formats?

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by mohit123 » Tue Sep 23, 2014 7:39 pm

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What is SequenceFile?

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by mohit123 » Tue Sep 23, 2014 7:39 pm

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Tue Sep 23, 2014 7:42 pm
What is Sequencefileinputformat in Hadoop MapReduce?

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by mohit123 » Tue Sep 23, 2014 1:57 am

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use of job conf class in Hadoop MapReduce

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by mohit123 » Tue Sep 23, 2014 1:55 am

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What is the Nlineoutputformat in Hadoop?

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by mohit123 » Tue Sep 23, 2014 1:58 am

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Tue Sep 23, 2014 5:24 pm
when to use Stand alone (local) mode in Hadoop?

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by mohit123 » Tue Sep 23, 2014 2:00 am

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In which directory Hadoop will install?

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by mohit123 » Tue Sep 23, 2014 2:04 am

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What is a spill factor in Hadoop MapReduce?

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by mohit123 » Tue Sep 23, 2014 2:07 am

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Tue Sep 23, 2014 5:03 pm
dfs.name.dir property in Hadoop hdfs-site.xml

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by mohit123 » Tue Sep 23, 2014 2:08 am

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Tue Sep 23, 2014 4:40 pm
dfs.data.dir property in Hadoop hdfs-site.xml

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by mohit123 » Tue Sep 23, 2014 2:10 am

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fs.checkpoint.dir property in Hadoop hdfs-site.xml

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by mohit123 » Tue Sep 23, 2014 2:11 am

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‘connection refused java exception’ for hadoop fsck

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by mohit123 » Tue Sep 23, 2014 2:28 am

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files used for startup and shutdown commands in Hadoop

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by mohit123 » Tue Sep 23, 2014 2:32 am

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What is SSH? What is the port number for SSH?

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by mohit123 » Tue Sep 23, 2014 2:34 am

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What happens to a Namenode, if job tracker is down?

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by mohit123 » Tue Sep 23, 2014 2:36 am

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Can i use Windows for Hadoop?

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by mohit123 » Tue Sep 23, 2014 2:39 am

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default port number for jobtracker, tasktracker and Namenode

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by dharama123 » Thu Sep 18, 2014 6:25 pm

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parameters of mappers and reducers in Hadoop Map Reduce?

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by dharama123 » Thu Sep 18, 2014 6:29 pm

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heartbeats in Hadoop

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by mohit123 » Sun Sep 21, 2014 1:44 am

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use of serialization in Mapreduce

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by mohit123 » Sun Sep 21, 2014 12:18 am

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Mon Sep 22, 2014 7:21 pm
How nodes in a hadoop cluster communicate?

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by mohit123 » Sun Sep 21, 2014 12:19 am

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Hadoop’s Serialization versus Java’s Serializable

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by mohit123 » Mon Sep 22, 2014 6:48 pm

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Hadoop Serialization framework

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by mohit123 » Sun Sep 21, 2014 12:20 am

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Writable Interface in Hadoop

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by mohit123 » Sun Sep 21, 2014 12:21 am

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WritableComparable in hadoop

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by mohit123 » Sun Sep 21, 2014 12:22 am

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WritableComparable vs Writable in Hadoop

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by mohit123 » Sun Sep 21, 2014 12:23 am

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Comparators in Hadoop Mapreduce

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by mohit123 » Sun Sep 21, 2014 12:24 am

2 Replies

1663 Views

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Mon Sep 22, 2014 6:06 pm
Sort the output of a Mapreduce Job globally

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by mohit123 » Sun Sep 21, 2014 12:28 am

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is Mapreduce Job mapper output files replicated?

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by mohit123 » Sun Sep 21, 2014 12:29 am

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Mapreduce Job reducer output file blocks replicated in HDFS

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by mohit123 » Sun Sep 21, 2014 12:32 am

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compression codecs available hadoop

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by mohit123 » Sun Sep 21, 2014 12:35 am

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setNumMapTasks(int) & setNumReduceTasks(int) in Mapreduce

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by mohit123 » Sun Sep 21, 2014 12:34 am

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compression format for large sized Log files in Hadoop

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by mohit123 » Sun Sep 21, 2014 1:23 am

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How to compress the output from a mapreduce Job?

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by mohit123 » Sun Sep 21, 2014 1:24 am

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compression on Output Sequence Files in Mapreduce job

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by mohit123 » Sun Sep 21, 2014 1:26 am

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How to compress the output from Map tasks in hadoop?

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by mohit123 » Sun Sep 21, 2014 1:29 am

1 Replies

1150 Views

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Mon Sep 22, 2014 1:21 am
What is Uber task in Hadoop?

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by mohit123 » Sun Sep 21, 2014 1:36 am

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Mon Sep 22, 2014 1:14 am
How to debug a failed mapreduce job?

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by mohit123 » Sun Sep 21, 2014 1:42 am

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When to use side data distribution in Hadoop

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by mohit123 » Sun Sep 21, 2014 1:55 am

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side data distribution technique in Hadoop

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by mohit123 » Sun Sep 21, 2014 1:53 am

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use files or archives in Hadoop distributed cache

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by mohit123 » Sun Sep 21, 2014 1:57 am

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How distributed cache works in Mapreduce Framework?

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by mohit123 » Sun Sep 21, 2014 1:58 am

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Why distributed cache needs in hadoop

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by mohit123 » Sun Sep 21, 2014 2:00 am

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What is Data Locality in Hadoop?

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by mohit123 » Sun Sep 21, 2014 2:35 am

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Will data locality possible in reducer phase of MapReduce?

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by mohit123 » Sun Sep 21, 2014 2:37 am

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mapred.reduce.parallel.copies parameter in hadoop

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by mohit123 » Sun Sep 21, 2014 3:37 am

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Advantages of small input split size in Hadoop

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by mohit123 » Sun Sep 21, 2014 3:47 am

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When will the reduce() method called in Hadoop Mapreduce

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by mohit123 » Sun Sep 21, 2014 3:48 am

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Where output of the Reduce tasks are stored in Hadoop?

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by mohit123 » Sun Sep 21, 2014 3:57 am

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don’t override the mapper methods in MapReduce

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by mohit123 » Sun Sep 21, 2014 3:59 am

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What is the use of Context object in MapReduce?

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by mohit123 » Sun Sep 21, 2014 4:02 am

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Can Reducers talk with each other?

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by mohit123 » Sun Sep 21, 2014 4:07 am

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phases of the Mapper and Reducer in Map Reduce

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by mohit123 » Sun Sep 21, 2014 4:15 am

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String data type and Text data type in Java Hadoop

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by mohit123 » Sun Sep 21, 2014 4:17 am

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What is the GenericWritable class in MapReduce?

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by mohit123 » Sun Sep 21, 2014 4:20 am

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multiple value type output from Mapper in Map Reduce

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by mohit123 » Sun Sep 21, 2014 4:37 am

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ObjectWritable data type in Hadoop

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by mohit123 » Sun Sep 21, 2014 4:38 am

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Writable arrays in Hadoop

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by mohit123 » Sun Sep 21, 2014 4:39 am

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MapWritable data types in Hadoop

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by mohit123 » Sun Sep 21, 2014 4:40 am

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Name of output files from Map phase and Reduce Phase

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by mohit123 » Sun Sep 21, 2014 4:41 am

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identity Mapper and identity Reducer in Hadoop

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by mohit123 » Sun Sep 21, 2014 4:42 am

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chain Mapper and chain reducer in hadoop

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by mohit123 » Sun Sep 21, 2014 4:42 am

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add multiple mappers and reducer classes in hadoop MapReduce

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by mohit123 » Sun Sep 21, 2014 4:44 am

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constraints on combiner implementation in MapReduce

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by mohit123 » Sun Sep 21, 2014 4:44 am

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primitive data types in Hadoop MapReduce

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by mohit123 » Sun Sep 21, 2014 4:48 am

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What is NullWritable in Hadoop MapReduce?

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by mohit123 » Sun Sep 21, 2014 4:49 am

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What is YARN in Hadoop?

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by mohit123 » Sun Sep 21, 2014 4:51 am

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serialization in Hadoop vs serialization in Java

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by mohit123 » Sun Sep 21, 2014 9:33 pm

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What is data serialization in Hadoop?

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by mohit123 » Sun Sep 21, 2014 4:52 am

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What is deserialization of data in Hadoop?

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by mohit123 » Sun Sep 21, 2014 4:52 am

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What are the main components of Mapreduce Job?

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by mohit123 » Sun Sep 21, 2014 4:53 am

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configuration parameter to run Hadoop Mapreduce Job

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by mohit123 » Sun Sep 21, 2014 4:54 am

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main components of YARN architecture

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Application Master in YARN architecture

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What happens if number of reducers are zero?

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by mohit123 » Sun Sep 21, 2014 3:39 am

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restriction to the key and value class in hadoop

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by mohit123 » Sat Sep 20, 2014 11:49 pm

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compute and Storage nodes in Hadoop

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by mohit123 » Sat Sep 20, 2014 11:50 pm

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common Input Formats defined in Hadoop? Which is default?

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by dharama123 » Thu Sep 18, 2014 2:10 am

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TextInputFormat vs KeyValueInputFormat in hadoop

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by dharama123 » Thu Sep 18, 2014 2:11 am

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by dharama123 » Thu Sep 18, 2014 2:15 am

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How many input splits will be made by Hadoop framework?

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by dharama123 » Thu Sep 18, 2014 2:25 am

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What is RecordReader in Hadoop?

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by dharama123 » Thu Sep 18, 2014 2:25 am

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by dharama123 » Thu Sep 18, 2014 2:26 am

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Default partition in Hadoop

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by dharama123 » Thu Sep 18, 2014 2:28 am

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by dharama123 » Thu Sep 18, 2014 2:30 am

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by dharama123 » Thu Sep 18, 2014 2:31 am

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by dharama123 » Thu Sep 18, 2014 2:33 am

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by dharama123 » Thu Sep 18, 2014 2:33 am

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by sandip » Wed Aug 27, 2014 9:32 pm

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