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https://issues.apache.org/jira/browse/HIVE-11222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Shelukhin updated HIVE-11222:
------------------------------------
Attachment: HIVE-11222.patch
If two threads load metadata with different sets of indexes, they may race (one
of the threads will get the value from cache when trying to put into cache, and
might be missing some indexes.
> LLAP: occasional NPE in parallel queries in ORC reader
> ------------------------------------------------------
>
> Key: HIVE-11222
> URL: https://issues.apache.org/jira/browse/HIVE-11222
> Project: Hive
> Issue Type: Sub-task
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Fix For: llap
>
> Attachments: HIVE-11222.patch
>
>
> {noformat}
> Caused by: java.io.IOException: java.lang.NullPointerException
> at
> org.apache.hadoop.hive.llap.io.api.impl.LlapInputFormat$LlapRecordReader.rethrowErrorIfAny(LlapInputFormat.java:275)
> at
> org.apache.hadoop.hive.llap.io.api.impl.LlapInputFormat$LlapRecordReader.nextCvb(LlapInputFormat.java:227)
> at
> org.apache.hadoop.hive.llap.io.api.impl.LlapInputFormat$LlapRecordReader.next(LlapInputFormat.java:155)
> at
> org.apache.hadoop.hive.llap.io.api.impl.LlapInputFormat$LlapRecordReader.next(LlapInputFormat.java:101)
> at
> org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:350)
> ... 22 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl$SargApplier.pickRowGroups(RecordReaderImpl.java:709)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.determineRgsToRead(OrcEncodedDataReader.java:618)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.callInternal(OrcEncodedDataReader.java:195)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.callInternal(OrcEncodedDataReader.java:59)
> at
> org.apache.hadoop.hive.common.CallableWithNdc.call(CallableWithNdc.java:37)
> ... 4 more
> {noformat}
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