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https://issues.apache.org/jira/browse/DRILL-5435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16066953#comment-16066953
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Kunal Khatua commented on DRILL-5435:
-------------------------------------
[~fmethot] / [~andreatbonanno]
there is a PR for DRILL-5420 that is in review. Looking at your stack traces,
I'm suspecting that this bug is a manifestation of DRILL-5420 because the issue
appears to happen during clean up (though there is no reference to the
AsyncPageReader in the stack trace).
I could be wrong, so I'm hoping you can try to cherry pick the commit and see
if it does fix the problem.
> Using Limit causes Memory Leaked Error since 1.10
> -------------------------------------------------
>
> Key: DRILL-5435
> URL: https://issues.apache.org/jira/browse/DRILL-5435
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Parquet
> Affects Versions: 1.10.0
> Reporter: F Méthot
> Assignee: Parth Chandra
>
> Here is the details I can provide:
> We migrated our production system from Drill 1.9 to 1.10 just 5 days ago.
> (220 nodes cluster)
> Our log show there was some 900+ queries ran without problem in first 4 days.
> (similar queries, that never use the `limit` clause)
> Yesterday we started doing simple adhoc select * ... limit 10 queries (like
> we often do, that was our first use of limit with 1.10)
> and we got a `Memory was leaked` exception below.
> Also, once we get the error, Most of all subsequent user queries fails with
> Channel Close Exception. We need to restart Drill to bring it back to normal.
> A day later, I used a similar select * limit 10 queries, and the same thing
> happen, had to restart Drill.
> In the exception, it was refering to a file (1_0_0.parquet)
> I moved that file to smaller test cluster (12 nodes) and got the error on the
> first attempt. but I am no longer able to reproduce the issue on that file.
> Between the 12 and 220 nodes cluster, a different Column name and Row Group
> Start was listed in the error.
> The parquet file was generated by Drill 1.10.
> I tried the same file with a local drill-embedded 1.9 and 1.10 and had no
> issue.
> Here is the error (manually typed), if you think of anything obvious, let us
> know.
> AsyncPageReader - User Error Occured: Exception Occurred while reading from
> disk (can not read class o.a.parquet.format.PageHeader: java.io.IOException:
> input stream is closed.)
> File:..../1_0_0.parquet
> Column: StringColXYZ
> Row Group Start: 115215476
> [Error Id: ....]
> at UserException.java:544)
> at
> o.a.d.exec.store.parquet.columnreaders.AsyncPageReader.handleAndThrowException(AsynvPageReader.java:199)
> at
> o.a.d.exec.store.parquet.columnreaders.AsyncPageReader.access(AsynvPageReader.java:81)
> at
> o.a.d.exec.store.parquet.columnreaders.AsyncPageReader.AsyncPageReaderTask.call(AsyncPageReader.java:483)
> at
> o.a.d.exec.store.parquet.columnreaders.AsyncPageReader.AsyncPageReaderTask.call(AsyncPageReader.java:392)
> at
> o.a.d.exec.store.parquet.columnreaders.AsyncPageReader.AsyncPageReaderTask.call(AsyncPageReader.java:392)
> ...
> Caused by: java.io.IOException: can not read class
> org.apache.parquet.format.PageHeader: java.io.IOException: Input Stream is
> closed.
> at o.a.parquet.format.Util.read(Util.java:216)
> at o.a.parquet.format.Util.readPageHeader(Util.java:65)
> at
> o.a.drill.exec.store.parquet.columnreaders.AsyncPageReader(AsyncPageReaderTask:430)
> Caused by: parquet.org.apache.thrift.transport.TTransportException: Input
> stream is closed
> at ...read(TIOStreamTransport.java:129)
> at ....TTransport.readAll(TTransport.java:84)
> at ....TCompactProtocol.readByte(TCompactProtocol.java:474)
> at ....TCompactProtocol.readFieldBegin(TCompactProtocol.java:481)
> at ....InterningProtocol.readFieldBegin(InterningProtocol.java:158)
> at ....o.a.parquet.format.PageHeader.read(PageHeader.java:828)
> at ....o.a.parquet.format.Util.read(Util.java:213)
> Fragment 0:0
> [Error id: ...]
> o.a.drill.common.exception.UserException: SYSTEM ERROR:
> IllegalStateException: Memory was leaked by query. Memory leaked: (524288)
> Allocator(op:0:0:4:ParquetRowGroupScan) 1000000/524288/39919616/10000000000
> at o.a.d.common.exceptions.UserException (UserException.java:544)
> at
> o.a.d.exec.work.fragment.FragmentExecutor.sendFinalState(FragmentExecutor.java:293)
> at o.a.d.exec.work.fragment.FragmentExecutor.cleanup(
> FragmentExecutor.java:160)
> at o.a.d.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:262)
> ...
> Caused by: IllegalStateException: Memory was leaked by query. Memory leaked:
> (524288)
> at o.a.d.exec.memory.BaseAllocator.close(BaseAllocator.java:502)
> at o.a.d.exec.ops.OperatorContextImpl(OperatorContextImpl.java:149)
> at o.a.d.exec.ops.FragmentContext.suppressingClose(FragmentContext.java:422)
> at o.a.d.exec.ops.FragmentContext.close(FragmentContext.java:411)
> at
> o.a.d.exec.work.fragment.FragmentExecutor.closeOutResources(FragmentExecutor.java:318)
> at
> o.a.d.exec.work.fragment.FragmentExecutor.cleanup(FragmentExecutor.java:155)
> This fixed the problem:
> alter <session|system> set `store.parquet.reader.pagereader.async`=false;
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