symious commented on PR #4075:
URL: https://github.com/apache/ozone/pull/4075#issuecomment-1370683862
```
2022-07-22 15:20:39,215 [OMDoubleBufferFlushThread] ERROR
org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer: Terminating with
exit status 2: OMDoubleBuffer flush threadOMDoubleBufferFlushThreadencountered
Throwable error
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:909)
at java.util.ArrayList$Itr.next(ArrayList.java:859)
at
org.apache.hadoop.ozone.om.helpers.RepeatedOmKeyInfo.getProto(RepeatedOmKeyInfo.java:70)
at
org.apache.hadoop.ozone.om.codec.RepeatedOmKeyInfoCodec.toPersistedFormat(RepeatedOmKeyInfoCodec.java:50)
at
org.apache.hadoop.ozone.om.codec.RepeatedOmKeyInfoCodec.toPersistedFormat(RepeatedOmKeyInfoCodec.java:35)
at
org.apache.hadoop.hdds.utils.db.CodecRegistry.asRawData(CodecRegistry.java:85)
at
org.apache.hadoop.hdds.utils.db.TypedTable.putWithBatch(TypedTable.java:130)
at
org.apache.hadoop.ozone.om.response.key.OMKeyCommitResponse.updateDeletedTable(OMKeyCommitResponse.java:107)
at
org.apache.hadoop.ozone.om.response.key.OMKeyCommitResponse.addToDBBatch(OMKeyCommitResponse.java:80)
at
org.apache.hadoop.ozone.om.response.OMClientResponse.checkAndUpdateDB(OMClientResponse.java:68)
at
org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.lambda$2(OzoneManagerDoubleBuffer.java:256)
at
org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.addToBatchWithTrace(OzoneManagerDoubleBuffer.java:201)
at
org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.lambda$1(OzoneManagerDoubleBuffer.java:254)
at java.util.Iterator.forEachRemaining(Iterator.java:116)
at
org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.flushTransactions(OzoneManagerDoubleBuffer.java:250)
at java.lang.Thread.run(Thread.java:748)
```
@errose28 , I added the whole stacktrace, I think the exception is thrown in
the for loop, so the omResponse can still hold the information?
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