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Title | Views | Posted |
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6321 | 10-12-2018 08:41 PM |
10-12-2018
08:41 PM
Below Statement worked for me finally .
hive> desc formatted testdb.table col_name partition (data_dt='20180715');
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10-05-2018
03:58 PM
@Sindhu, Thanks for the reply. I tried the same and it wont return any values. But the compute statistics command worked fine though hive> analyze table testdb.table partition(data_dt) compute statistics for columns order_dispatch_diff;
Query ID = anil_20181004181226_ed6afd54-fed8-4601-8b54-29214a8dbfc3
Total jobs = 1
Launching Job 1 out of 1
Status: Running (Executing on YARN cluster with App id application_1537195062060_1102639)
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VERTICES STATUS TOTAL COMPLETED RUNNING PENDING FAILED KILLED
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Map 1 .......... SUCCEEDED 62 62 0 0 0 0
Reducer 2 ...... SUCCEEDED 1 1 0 0 0 0
--------------------------------------------------------------------------------
VERTICES: 02/02 [==========================>>] 100% ELAPSED TIME: 101.08 s
--------------------------------------------------------------------------------
OK
Time taken: 108.142 seconds
hive> desc extended testdb.table order_dispatch_diff;
OK
order_dispatch_diff int from deserializer
Time taken: 0.041 seconds, Fetched: 1 row(s)
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10-04-2018
05:44 PM
Trying to see statistics on a particular column. I executed the ANALYZE command first and then tried to see the stats by DESCRIBE FORMATTED <table_name> <col_name>. I cant see any values in this. Any idea why its not showing any values? I tried MSCK and analyzed the table again and checked for stats. No luck so far. Thanks Anil
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Labels:
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Apache Hive
10-03-2018
04:38 PM
Worked like a charm!. Thank you.
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10-02-2018
07:08 PM
Hive Query fails with the below error when running in Tez Mode. My application dont have option to alter the execution mode. So tez is the only option. Is this a bug from Tez ? Query run fine in MR mode when tried from shell.. Error: --------------------------------------------------------------------------------
Map 1 ..... RUNNING 494 278 0 216 343 0
Reducer 2 INITED 62 0 0 62 0 0
--------------------------------------------------------------------------------
VERTICES: 00/02 [=============>>-------------] 50% ELAPSED TIME: 41.84 s
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Status: Failed
Vertex failed, vertexName=Map 1, vertexId=vertex_1537195062060_938252_1_00, diagnostics=[Task failed, taskId=task_1537195062060_938252_1_00_000367, diagn=[TaskAttempt 0 failed, info=[Error: Failure while running task:java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: java.io.IOEon: java.io.IOException: wrong key class: org.apache.hadoop.io.NullWritable is not class org.apache.hadoop.io.BytesWritable
at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:173)
at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.run(TezProcessor.java:139)
at org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:347)
at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:194)
at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:185)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1866)
at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:185)
at org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:181)
at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.io.IOException: java.io.IOException: wrong key class: org.apache.hadoop.io.NullWritablet class org.apache.hadoop.io.BytesWritable
at org.apache.hadoop.hive.ql.exec.tez.MapRecordSource.pushRecord(MapRecordSource.java:71)
at org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.run(MapRecordProcessor.java:325)
at org.apache.hadoop.hive.ql.exec.tez.TezProcessor.initializeAndRunProcessor(TezProcessor.java:150)
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Apache Hive
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Apache Tez