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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-12815) column stats fail for a query w/o a table
Date Fri, 08 Jan 2016 21:50:39 GMT
Sergey Shelukhin created HIVE-12815:
---------------------------------------

             Summary: column stats fail for a query w/o a table
                 Key: HIVE-12815
                 URL: https://issues.apache.org/jira/browse/HIVE-12815
             Project: Hive
          Issue Type: Bug
    Affects Versions: 2.0.0
            Reporter: Sergey Shelukhin
            Assignee: Prasanth Jayachandran


I was running something like create table as select 1;

First it logs why it cannot get stats:
{noformat}
2016-01-08T21:46:31,876 ERROR [0883a32c-c789-4695-aec2-ed73bb1cc9ce 0883a32c-c789-4695-aec2-ed73bb1cc9ce
main]: stats.StatsUtils (StatsUtils.java:getTableColumnStats(756)) - Failed to retrieve table
statistics:
org.apache.hadoop.hive.ql.metadata.HiveException: NoSuchObjectException(message:Specified
database/table does not exist : _dummy_database._dummy_table)
        at org.apache.hadoop.hive.ql.metadata.Hive.getTableColumnStatistics(Hive.java:3195)
~[hive-exec-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
        at org.apache.hadoop.hive.ql.stats.StatsUtils.getTableColumnStats(StatsUtils.java:752)
[hive-exec-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
        at org.apache.hadoop.hive.ql.stats.StatsUtils.collectStatistics(StatsUtils.java:198)
[hive-exec-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
        at org.apache.hadoop.hive.ql.stats.StatsUtils.collectStatistics(StatsUtils.java:144)
[hive-exec-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
        at org.apache.hadoop.hive.ql.stats.StatsUtils.collectStatistics(StatsUtils.java:132)
[hive-exec-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
{noformat}

then it fails with NPE:
{noformat}
2016-01-08T21:46:31,885 ERROR [0883a32c-c789-4695-aec2-ed73bb1cc9ce 0883a32c-c789-4695-aec2-ed73bb1cc9ce
main]: ql.Driver (SessionState.java:printError(1010)) - FAILED: NullPointerException null
java.lang.NullPointerException
        at org.apache.hadoop.hive.ql.stats.StatsUtils.getDataSizeFromColumnStats(StatsUtils.java:1450)
        at org.apache.hadoop.hive.ql.stats.StatsUtils.collectStatistics(StatsUtils.java:199)
        at org.apache.hadoop.hive.ql.stats.StatsUtils.collectStatistics(StatsUtils.java:144)
        at org.apache.hadoop.hive.ql.stats.StatsUtils.collectStatistics(StatsUtils.java:132)
        at org.apache.hadoop.hive.ql.optimizer.stats.annotation.StatsRulesProcFactory$TableScanStatsRule.process(StatsRulesProcFactory.java:114)
        at org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90)
        at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:105)
        at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:89)
        at org.apache.hadoop.hive.ql.lib.LevelOrderWalker.walk(LevelOrderWalker.java:143)
        at org.apache.hadoop.hive.ql.lib.LevelOrderWalker.startWalking(LevelOrderWalker.java:122)
        at org.apache.hadoop.hive.ql.optimizer.stats.annotation.AnnotateWithStatistics.transform(AnnotateWithStatistics.java:78)
{noformat}

Only "NullPointerException null" is logged to CLI... :(



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