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From "Matt McCline (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14004) Minor compaction produces ArrayIndexOutOfBoundsException: 7 in SchemaEvolution.getFileType
Date Sat, 09 Jul 2016 23:42:10 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15369350#comment-15369350
] 

Matt McCline commented on HIVE-14004:
-------------------------------------

Begin too strict on what can not use logical schema caused acid_table_stats.q to get exceptions
and suppress statistics.

So, backed off on that in patch #2.

> Minor compaction produces ArrayIndexOutOfBoundsException: 7 in SchemaEvolution.getFileType
> ------------------------------------------------------------------------------------------
>
>                 Key: HIVE-14004
>                 URL: https://issues.apache.org/jira/browse/HIVE-14004
>             Project: Hive
>          Issue Type: Bug
>          Components: Transactions
>    Affects Versions: 2.2.0
>            Reporter: Eugene Koifman
>            Assignee: Matt McCline
>         Attachments: HIVE-14004.01.patch, HIVE-14004.02.patch
>
>
> Easiest way to repro is to add TestTxnCommands2
> {noformat}
>   @Test
>   public void testCompactWithDelete() throws Exception {
>     int[][] tableData = {{1,2},{3,4}};
>     runStatementOnDriver("insert into " + Table.ACIDTBL + "(a,b) " + makeValuesClause(tableData));
>     runStatementOnDriver("alter table "+ Table.ACIDTBL + " compact 'MAJOR'");
>     Worker t = new Worker();
>     t.setThreadId((int) t.getId());
>     t.setHiveConf(hiveConf);
>     AtomicBoolean stop = new AtomicBoolean();
>     AtomicBoolean looped = new AtomicBoolean();
>     stop.set(true);
>     t.init(stop, looped);
>     t.run();
>     runStatementOnDriver("delete from " + Table.ACIDTBL + " where b = 4");
>     runStatementOnDriver("update " + Table.ACIDTBL + " set b = -2 where b = 2");
>     runStatementOnDriver("alter table "+ Table.ACIDTBL + " compact 'MINOR'");
>     t.run();
>   }
> {noformat}
> to TestTxnCommands2 and run it.
> Test won't fail but if you look 
> in target/tmp/log/hive.log for the following exception (from Minor compaction).
> {noformat}
> 2016-06-09T18:36:39,071 WARN  [Thread-190[]]: mapred.LocalJobRunner (LocalJobRunner.java:run(560))
- job_local1233973168_0005
> java.lang.Exception: java.lang.ArrayIndexOutOfBoundsException: 7
>         at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
~[hadoop-mapreduce-client-common-2.6.1.jar:?]
>         at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:522) [hadoop-mapreduce-client-common-2.6.1.jar:?]
> Caused by: java.lang.ArrayIndexOutOfBoundsException: 7
>         at org.apache.orc.impl.SchemaEvolution.getFileType(SchemaEvolution.java:67) ~[hive-orc-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
>         at org.apache.orc.impl.TreeReaderFactory.createTreeReader(TreeReaderFactory.java:2031)
~[hive-orc-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
>         at org.apache.orc.impl.TreeReaderFactory$StructTreeReader.<init>(TreeReaderFactory.java:1716)
~[hive-orc-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
>         at org.apache.orc.impl.TreeReaderFactory.createTreeReader(TreeReaderFactory.java:2077)
~[hive-orc-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
>         at org.apache.orc.impl.TreeReaderFactory$StructTreeReader.<init>(TreeReaderFactory.java:1716)
~[hive-orc-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
>         at org.apache.orc.impl.TreeReaderFactory.createTreeReader(TreeReaderFactory.java:2077)
~[hive-orc-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
>         at org.apache.orc.impl.RecordReaderImpl.<init>(RecordReaderImpl.java:208)
~[hive-orc-2.2.0-SNAPSHOT.jar:2.2.0-SNAPSHOT]
>         at org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.<init>(RecordReaderImpl.java:63)
~[classes/:?]
>         at org.apache.hadoop.hive.ql.io.orc.ReaderImpl.rowsOptions(ReaderImpl.java:365)
~[classes/:?]
>         at org.apache.hadoop.hive.ql.io.orc.OrcRawRecordMerger$ReaderPair.<init>(OrcRawRecordMerger.java:207)
~[classes/:?]
>         at org.apache.hadoop.hive.ql.io.orc.OrcRawRecordMerger.<init>(OrcRawRecordMerger.java:508)
~[classes/:?]
>         at org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.getRawReader(OrcInputFormat.java:1977)
~[classes/:?]
>         at org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.map(CompactorMR.java:630)
~[classes/:?]
>         at org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorMap.map(CompactorMR.java:609)
~[classes/:?]
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) ~[hadoop-mapreduce-client-core-2.6.1.jar:?]
>         at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:450) ~[hadoop-mapreduce-client-core-2.6.1.jar:?]
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343) ~[hadoop-mapreduce-client-core-2.6.1.jar:?]
>         at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)
~[hadoop-mapreduce-client-common-2.6.1.jar:?]
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) ~[?:1.7.0_71]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:262) ~[?:1.7.0_71]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
~[?:1.7.0_71]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
~[?:1.7.0_71]
>         at java.lang.Thread.run(Thread.java:745) ~[?:1.7.0_71]
> {noformat}
> I observed the same on a real cluster.
> Based on my observations, running Major compaction instead of minor, works fine.
> Replacing the DELETE operation with update, makes both Major/Minor run fine.
> The issue itself should be addressed by HIVE-13974 but need to make sure to add the test.



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