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https://issues.apache.org/jira/browse/HDDS-2322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HDDS-2322 started by Bharat Viswanadham.
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> DoubleBuffer flush termination and OM shutdown's after that.
> ------------------------------------------------------------
>
> Key: HDDS-2322
> URL: https://issues.apache.org/jira/browse/HDDS-2322
> Project: Hadoop Distributed Data Store
> Issue Type: Task
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
>
> om1_1 | 2019-10-18 00:34:45,317 [OMDoubleBufferFlushThread] ERROR
> - Terminating with exit status 2: OMDoubleBuffer flush
> threadOMDoubleBufferFlushThreadencountered Throwable error
> om1_1 | java.util.ConcurrentModificationException
> om1_1 | at
> java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1660)
> om1_1 | at
> java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
> om1_1 | at
> java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
> om1_1 | at
> java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
> om1_1 | at
> java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> om1_1 | at
> java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
> om1_1 | at
> org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfoGroup.getProtobuf(OmKeyLocationInfoGroup.java:65)
> om1_1 | at
> java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
> om1_1 | at
> java.base/java.util.Collections$2.tryAdvance(Collections.java:4745)
> om1_1 | at
> java.base/java.util.Collections$2.forEachRemaining(Collections.java:4753)
> om1_1 | at
> java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
> om1_1 | at
> java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
> om1_1 | at
> java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
> om1_1 | at
> java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> om1_1 | at
> java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
> om1_1 | at
> org.apache.hadoop.ozone.om.helpers.OmKeyInfo.getProtobuf(OmKeyInfo.java:362)
> om1_1 | at
> org.apache.hadoop.ozone.om.codec.OmKeyInfoCodec.toPersistedFormat(OmKeyInfoCodec.java:37)
> om1_1 | at
> org.apache.hadoop.ozone.om.codec.OmKeyInfoCodec.toPersistedFormat(OmKeyInfoCodec.java:31)
> om1_1 | at
> org.apache.hadoop.hdds.utils.db.CodecRegistry.asRawData(CodecRegistry.java:68)
> om1_1 | at
> org.apache.hadoop.hdds.utils.db.TypedTable.putWithBatch(TypedTable.java:125)
> om1_1 | at
> org.apache.hadoop.ozone.om.response.key.OMKeyCreateResponse.addToDBBatch(OMKeyCreateResponse.java:58)
> om1_1 | at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.lambda$flushTransactions$0(OzoneManagerDoubleBuffer.java:139)
> om1_1 | at
> java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
> om1_1 | at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.flushTransactions(OzoneManagerDoubleBuffer.java:137)
> om1_1 | at java.base/java.lang.Thread.run(Thread.java:834)
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