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Posted to notifications@accumulo.apache.org by "Corey J. Nolet (JIRA)" <ji...@apache.org> on 2014/12/18 04:37:14 UTC
[jira] [Updated] (ACCUMULO-3343) EOFException when source switching
iterator fires
[ https://issues.apache.org/jira/browse/ACCUMULO-3343?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Corey J. Nolet updated ACCUMULO-3343:
-------------------------------------
Fix Version/s: (was: 1.6.2)
1.6.3
> EOFException when source switching iterator fires
> -------------------------------------------------
>
> Key: ACCUMULO-3343
> URL: https://issues.apache.org/jira/browse/ACCUMULO-3343
> Project: Accumulo
> Issue Type: Bug
> Components: tserver
> Affects Versions: 1.5.2, 1.6.1
> Environment: 1.6.0 with the patch for ACCUMULO-1628 applied to it
> Reporter: John Vines
> Fix For: 1.5.3, 1.7.0, 1.6.3
>
>
> On a high ingest/query cluster (between 10-20 nodes) I see the following -
> {code}2014-11-14 22:08:12,745 [tserver.InMemoryMap] ERROR: Failed to create mem dump file
> java.io.EOFException
> at java.io.DataInputStream.readByte(DataInputStream.java:267)
> at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
> at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:748)
> at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader.seek(RFile.java:607)
> at org.apache.accumulo.core.iterators.system.LocalityGroupIterator.seek(LocalityGroupIterator.java:142)
> at org.apache.accumulo.core.file.rfile.RFile$Reader.seek(RFile.java:979)
> at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
> at org.apache.accumulo.tserver.MemKeyConversionIterator.seek(InMemoryMap.java:168)
> at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator._switchNow(SourceSwitchingIterator.java:171)
> at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.switchNow(SourceSwitchingIterator.java:179)
> at org.apache.accumulo.tserver.InMemoryMap$MemoryIterator.switchNow(InMemoryMap.java:647)
> at org.apache.accumulo.tserver.InMemoryMap$MemoryIterator.access$900(InMemoryMap.java:601)
> at org.apache.accumulo.tserver.InMemoryMap.delete(InMemoryMap.java:746)
> at org.apache.accumulo.tserver.Tablet$TabletMemory.finalizeMinC(Tablet.java:327)
> at org.apache.accumulo.tserver.Tablet.minorCompact(Tablet.java:2068)
> at org.apache.accumulo.tserver.Tablet.access$4300(Tablet.java:170)
> at org.apache.accumulo.tserver.Tablet$MinorCompactionTask.run(Tablet.java:2134)
> at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
> at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
> at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
> at java.lang.Thread.run(Thread.java:744){code}
> After this happens, I also see iterators failing-
> {code} ERROR: exception when running query
> java.io.EOFException
> at java.io.DataInputStream.readByte(DataInputStream.java:267)
> at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
> at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:748)
> at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader.seek(RFile.java:607)
> at org.apache.accumulo.core.iterators.system.LocalityGroupIterator.seek(LocalityGroupIterator.java:142)
> at org.apache.accumulo.core.file.rfile.RFile$Reader.seek(RFile.java:979)
> at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
> at org.apache.accumulo.tserver.MemKeyConversionIterator.seek(InMemoryMap.java:168)
> at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
> at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:162)
> at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
> at org.apache.accumulo.core.iterators.SkippingIterator.seek(SkippingIterator.java:37)
> at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
> at org.apache.accumulo.core.iterators.system.MultiIterator.seek(MultiIterator.java:105)
> at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
> at org.apache.accumulo.core.iterators.system.StatsIterator.seek(StatsIterator.java:64)
> at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
> at org.apache.accumulo.core.iterators.system.DeletingIterator.seek(DeletingIterator.java:67)
> at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
> at org.apache.accumulo.core.iterators.SkippingIterator.seek(SkippingIterator.java:37)
> at org.apache.accumulo.core.iterators.system.ColumnFamilySkippingIterator.seek(ColumnFamilySkippingIterator.java:123)
> at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
> at org.apache.accumulo.core.iterators.Filter.seek(Filter.java:64)
> at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
> at org.apache.accumulo.core.iterators.Filter.seek(Filter.java:64)
> at org.apache.accumulo.core.iterators.system.SynchronizedIterator.seek(SynchronizedIterator.java:55)
> {code}
> Still waiting on logs related, but when the system gets into this state, all tservers are throwing errors like this (our query pattern uses a lot of batchscanners), but also we see the gc take extremely long times to run, throwing
> {code}[impl.ThriftScanner] DEBUG: Scan failed, thrift error org.apache.thrift.transport.TTransportException java.net.SocketTimeoutException: 120000 millis timeout while waiting for channel to be ready for read. ch : java.nio.channels.SocketChannel[connected...{code} but I think that is unrelated
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