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https://issues.apache.org/jira/browse/HIVE-12178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14971918#comment-14971918
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Sergey Shelukhin commented on HIVE-12178:
-----------------------------------------
Thanks for the review!
> LLAP: NPE in LRFU policy
> ------------------------
>
> Key: HIVE-12178
> URL: https://issues.apache.org/jira/browse/HIVE-12178
> Project: Hive
> Issue Type: Bug
> Reporter: Siddharth Seth
> Assignee: Sergey Shelukhin
> Fix For: 2.0.0
>
> Attachments: HIVE-12178.patch
>
>
> {noformat}
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.hive.llap.cache.LowLevelLrfuCachePolicy.removeFromListUnderLock(LowLevelLrfuCachePolicy.java:346)
> at
> org.apache.hadoop.hive.llap.cache.LowLevelLrfuCachePolicy.removeFromListAndUnlock(LowLevelLrfuCachePolicy.java:335)
> at
> org.apache.hadoop.hive.llap.cache.LowLevelLrfuCachePolicy.notifyUnlock(LowLevelLrfuCachePolicy.java:133)
> at
> org.apache.hadoop.hive.llap.cache.LowLevelCacheImpl.unlockBuffer(LowLevelCacheImpl.java:354)
> at
> org.apache.hadoop.hive.llap.cache.LowLevelCacheImpl.releaseBuffers(LowLevelCacheImpl.java:344)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.returnData(OrcEncodedDataReader.java:662)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.returnData(OrcEncodedDataReader.java:74)
> at
> org.apache.hadoop.hive.llap.io.decode.EncodedDataConsumer.returnSourceData(EncodedDataConsumer.java:131)
> at
> org.apache.hadoop.hive.llap.io.decode.EncodedDataConsumer.consumeData(EncodedDataConsumer.java:122)
> at
> org.apache.hadoop.hive.llap.io.decode.EncodedDataConsumer.consumeData(EncodedDataConsumer.java:36)
> at
> org.apache.hadoop.hive.ql.io.orc.encoded.EncodedReaderImpl.readEncodedColumns(EncodedReaderImpl.java:405)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.performDataRead(OrcEncodedDataReader.java:413)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader$4.run(OrcEncodedDataReader.java:194)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader$4.run(OrcEncodedDataReader.java:191)
> 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:1655)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.callInternal(OrcEncodedDataReader.java:191)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.callInternal(OrcEncodedDataReader.java:74)
> at org.apache.hadoop.hive.common.CallableWithNdc.call(CallableWithNdc.java:37)
> ... 4 more
> {noformat}
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