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https://issues.apache.org/jira/browse/HIVE-16078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15891279#comment-15891279
]
Siddharth Seth commented on HIVE-16078:
---------------------------------------
Adjusting the interval makes sense to me. I'm not sure about the cost impact
though. Think the maybeCheckAbort method needs some tests though.
- Cast to double in the division
- The new adjusted value for nRows may be reversed - i.e. increased if things
took to long, and reduced if the check happened faster.
Will let [~mmccline] comment on the other changes.
Do you know of any other operators which can end up spending a lot of time on a
single row? (How would outer joins factor into this for example?)
> improve abort checking in Tez/LLAP
> ----------------------------------
>
> Key: HIVE-16078
> URL: https://issues.apache.org/jira/browse/HIVE-16078
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-16078.patch
>
>
> Sometimes, a fragment can run for a long time after a query fails. It looks
> from logs like the abort/interrupt were called correctly on the thread, yet
> the thread hangs around minutes after, doing the below. Other tasks for the
> same job appear to have exited correctly, after the same abort logic (at
> least, the same log lines, fwiw)
> {noformat}
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorCopyRow.copyByValue(VectorCopyRow.java:317)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.generateHashMapResultMultiValue(VectorMapJoinGenerateResultOperator.java:263)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerGenerateResultOperator.finishInner(VectorMapJoinInnerGenerateResultOperator.java:189)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerLongOperator.process(VectorMapJoinInnerLongOperator.java:389)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.forwardOverflow(VectorMapJoinGenerateResultOperator.java:628)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.generateHashMapResultMultiValue(VectorMapJoinGenerateResultOperator.java:277)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerGenerateResultOperator.finishInner(VectorMapJoinInnerGenerateResultOperator.java:189)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerLongOperator.process(VectorMapJoinInnerLongOperator.java:389)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.forwardOverflow(VectorMapJoinGenerateResultOperator.java:628)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.generateHashMapResultMultiValue(VectorMapJoinGenerateResultOperator.java:277)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerGenerateResultOperator.finishInner(VectorMapJoinInnerGenerateResultOperator.java:189)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerLongOperator.process(VectorMapJoinInnerLongOperator.java:389)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.forwardOverflow(VectorMapJoinGenerateResultOperator.java:628)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.generateHashMapResultMultiValue(VectorMapJoinGenerateResultOperator.java:277)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerGenerateResultOperator.finishInner(VectorMapJoinInnerGenerateResultOperator.java:189)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerLongOperator.process(VectorMapJoinInnerLongOperator.java:389)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.forwardOverflow(VectorMapJoinGenerateResultOperator.java:628)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.generateHashMapResultMultiValue(VectorMapJoinGenerateResultOperator.java:277)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerGenerateResultOperator.finishInner(VectorMapJoinInnerGenerateResultOperator.java:189)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerLongOperator.process(VectorMapJoinInnerLongOperator.java:389)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.forwardOverflow(VectorMapJoinGenerateResultOperator.java:628)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.generateHashMapResultMultiValue(VectorMapJoinGenerateResultOperator.java:277)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerGenerateResultOperator.finishInner(VectorMapJoinInnerGenerateResultOperator.java:189)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerLongOperator.process(VectorMapJoinInnerLongOperator.java:389)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.forwardOverflow(VectorMapJoinGenerateResultOperator.java:628)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.generateHashMapResultMultiValue(VectorMapJoinGenerateResultOperator.java:277)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerGenerateResultOperator.finishInner(VectorMapJoinInnerGenerateResultOperator.java:189)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerLongOperator.process(VectorMapJoinInnerLongOperator.java:389)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.forwardOverflow(VectorMapJoinGenerateResultOperator.java:628)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinGenerateResultOperator.generateHashMapResultMultiValue(VectorMapJoinGenerateResultOperator.java:277)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerGenerateResultOperator.finishInner(VectorMapJoinInnerGenerateResultOperator.java:189)
> at
> org.apache.hadoop.hive.ql.exec.vector.mapjoin.VectorMapJoinInnerLongOperator.process(VectorMapJoinInnerLongOperator.java:389)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.process(VectorSelectOperator.java:137)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorFilterOperator.process(VectorFilterOperator.java:123)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:897)
> at
> org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:130)
> at
> org.apache.hadoop.hive.ql.exec.vector.VectorMapOperator.process(VectorMapOperator.java:783)
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordSource.processRow(MapRecordSource.java:86)
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordSource.pushRecord(MapRecordSource.java:70)
> at
> org.apache.hadoop.hive.ql.exec.tez.MapRecordProcessor.run(MapRecordProcessor.java:420)
> {noformat}
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