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Posted to dev@hive.apache.org by "Pengcheng Xiong (JIRA)" <ji...@apache.org> on 2015/07/10 06:49:04 UTC

[jira] [Created] (HIVE-11224) AggregateStatsCache triggers java.util.ConcurrentModificationException under some conditions

Pengcheng Xiong created HIVE-11224:
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             Summary: AggregateStatsCache triggers java.util.ConcurrentModificationException under some conditions
                 Key: HIVE-11224
                 URL: https://issues.apache.org/jira/browse/HIVE-11224
             Project: Hive
          Issue Type: Bug
            Reporter: Pengcheng Xiong
            Assignee: Pengcheng Xiong


Stack
{code}
java.util.ConcurrentModificationException
        at java.util.HashMap$HashIterator.nextEntry(HashMap.java:922)
        at java.util.HashMap$EntryIterator.next(HashMap.java:962)
        at java.util.HashMap$EntryIterator.next(HashMap.java:960)
        at org.apache.hadoop.hive.metastore.AggregateStatsCache.findBestMatch(AggregateStatsCache.java:244)
        at org.apache.hadoop.hive.metastore.AggregateStatsCache.get(AggregateStatsCache.java:186)
        at org.apache.hadoop.hive.metastore.MetaStoreDirectSql.aggrColStatsForPartitions(MetaStoreDirectSql.java:1131)
        at org.apache.hadoop.hive.metastore.ObjectStore$9.getSqlResult(ObjectStore.java:6174)
        at org.apache.hadoop.hive.metastore.ObjectStore$9.getSqlResult(ObjectStore.java:6170)
        at org.apache.hadoop.hive.metastore.ObjectStore$GetHelper.run(ObjectStore.java:2405)
        at org.apache.hadoop.hive.metastore.ObjectStore.get_aggr_stats_for(ObjectStore.java:6170)
        at sun.reflect.GeneratedMethodAccessor103.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:114)
        at com.sun.proxy.$Proxy6.get_aggr_stats_for(Unknown Source)
        at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_aggr_stats_for(HiveMetaStore.java:5707)
        at sun.reflect.GeneratedMethodAccessor102.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:107)
        at com.sun.proxy.$Proxy8.get_aggr_stats_for(Unknown Source)
        at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.getAggrColStatsFor(HiveMetaStoreClient.java:2067)
        at sun.reflect.GeneratedMethodAccessor101.invoke(Unknown Source)
{code}



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