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Posted to notifications@accumulo.apache.org by "Eric Newton (JIRA)" <ji...@apache.org> on 2014/01/23 21:51:42 UTC

[jira] [Updated] (ACCUMULO-2247) random walk fails when server gets EOFException

     [ https://issues.apache.org/jira/browse/ACCUMULO-2247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Newton updated ACCUMULO-2247:
----------------------------------

    Description: 
Saw this stack set of errors tin the corresponding server:

{noformat}
2014-01-23 19:19:18,020 [tserver.TabletServer] WARN : lookup failed for tablet !0;~<
java.io.EOFException
        at java.io.DataInputStream.readByte(DataInputStream.java:250)
        at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
        at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:675)
        at org.apache.accumulo.core.file.rfile.RFile$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.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
        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)
        at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
        at org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:81)
        at org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:241)
        at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
        at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
        at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1562)
        at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1669)
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1115)
        at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        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:662)

2014-01-23 19:19:18,027 [tserver.TabletServer] WARN : exception while doing multi-scan 
java.lang.RuntimeException: java.io.EOFException
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1126)
        at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        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:662)
Caused by: java.io.EOFException
        at java.io.DataInputStream.readByte(DataInputStream.java:250)
        at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
        at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:675)
        at org.apache.accumulo.core.file.rfile.RFile$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.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
        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)
        at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
        at org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:81)
        at org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:241)
        at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
        at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
        at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1562)
        at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1669)
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1115)
        ... 6 more
2014-01-23 19:19:18,031 [tserver.TabletServer] WARN : Failed to get multiscan result
java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.EOFException
        at org.apache.accumulo.tserver.TabletServer$ScanTask.get(TabletServer.java:755)
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.continueMultiScan(TabletServer.java:1417)
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.startMultiScan(TabletServer.java:1382)
        at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.accumulo.trace.instrument.thrift.TraceWrap$1.invoke(TraceWrap.java:63)
        at $Proxy15.startMultiScan(Unknown Source)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2252)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2236)
        at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
        at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
        at org.apache.accumulo.server.util.TServerUtils$TimedProcessor.process(TServerUtils.java:171)
        at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:478)
        at org.apache.accumulo.server.util.TServerUtils$THsHaServer$Invocation.run(TServerUtils.java:231)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
        at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
        at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.RuntimeException: java.io.EOFException
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1126)
        at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
        ... 5 more
Caused by: java.io.EOFException
        at java.io.DataInputStream.readByte(DataInputStream.java:250)
        at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
        at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:675)
        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.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
        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)
        at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
        at org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:81)
        at org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:241)
        at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
        at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
        at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1562)
        at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1669)
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1115)
        ... 6 more
2014-01-23 19:19:18,036 [thrift.ProcessFunction] ERROR: Internal error processing startMultiScan
java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.EOFException
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.continueMultiScan(TabletServer.java:1430)
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.startMultiScan(TabletServer.java:1382)
        at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.accumulo.trace.instrument.thrift.TraceWrap$1.invoke(TraceWrap.java:63)
        at $Proxy15.startMultiScan(Unknown Source)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2252)
        at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2236)
        at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
        at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
        at org.apache.accumulo.server.util.TServerUtils$TimedProcessor.process(TServerUtils.java:171)
        at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:478)
        at org.apache.accumulo.server.util.TServerUtils$THsHaServer$Invocation.run(TServerUtils.java:231)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
        at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
        at java.lang.Thread.run(Thread.java:662)
Caused by: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.EOFException
        at org.apache.accumulo.tserver.TabletServer$ScanTask.get(TabletServer.java:755)
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.continueMultiScan(TabletServer.java:1417)
        ... 18 more
Caused by: java.lang.RuntimeException: java.io.EOFException
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1126)
        at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
        ... 5 more
Caused by: java.io.EOFException
        at java.io.DataInputStream.readByte(DataInputStream.java:250)
        at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
        at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:675)
        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.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
        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)
        at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
        at org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:81)
        at org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:241)
        at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
        at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
        at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1562)
        at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1669)
        at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1115)
        ... 6 more
{noformat}


> random walk fails when server gets EOFException
> -----------------------------------------------
>
>                 Key: ACCUMULO-2247
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2247
>             Project: Accumulo
>          Issue Type: Bug
>          Components: client, tserver
>         Environment: Running RW on 10 node test cluster.  Client quit with an unknown error.  Looking at the corresponding server logs, there's this exception:
> {noformat}
> 2014-01-23 19:19:18,031 [tserver.TabletServer] WARN : Failed to get multiscan result
> java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.EOFException
>         at org.apache.accumulo.tserver.TabletServer$ScanTask.get(TabletServer.java:755)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.continueMultiScan(TabletServer.java:1417)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.startMultiScan(TabletServer.java:1382)
>         at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.accumulo.trace.instrument.thrift.TraceWrap$1.invoke(TraceWrap.java:63)
>         at $Proxy15.startMultiScan(Unknown Source)
>         at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2252)
>         at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2236)
>         at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
>         at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
>         at org.apache.accumulo.server.util.TServerUtils$TimedProcessor.process(TServerUtils.java:171)
>         at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:478)
>         at org.apache.accumulo.server.util.TServerUtils$THsHaServer$Invocation.run(TServerUtils.java:231)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
>         at java.lang.Thread.run(Thread.java:662)
> Caused by: java.lang.RuntimeException: java.io.EOFException
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1126)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         ... 5 more
> Caused by: java.io.EOFException
>         at java.io.DataInputStream.readByte(DataInputStream.java:250)
>         at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
>         at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:675)
>         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.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
>         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)
>         at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
>         at org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:81)
>         at org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:241)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1562)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1669)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1115)
>         ... 6 more
> {noformat}
> 1.6-SNAPSHOT, Hadoop 2.2.0, running the agitator. 
>            Reporter: Eric Newton
>
> Saw this stack set of errors tin the corresponding server:
> {noformat}
> 2014-01-23 19:19:18,020 [tserver.TabletServer] WARN : lookup failed for tablet !0;~<
> java.io.EOFException
>         at java.io.DataInputStream.readByte(DataInputStream.java:250)
>         at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
>         at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:675)
>         at org.apache.accumulo.core.file.rfile.RFile$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.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
>         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)
>         at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
>         at org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:81)
>         at org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:241)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1562)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1669)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1115)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
>         at java.lang.Thread.run(Thread.java:662)
> 2014-01-23 19:19:18,027 [tserver.TabletServer] WARN : exception while doing multi-scan 
> java.lang.RuntimeException: java.io.EOFException
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1126)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
>         at java.lang.Thread.run(Thread.java:662)
> Caused by: java.io.EOFException
>         at java.io.DataInputStream.readByte(DataInputStream.java:250)
>         at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
>         at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:675)
>         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.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
>         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)
>         at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
>         at org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:81)
>         at org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:241)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1562)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1669)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1115)
>         ... 6 more
> 2014-01-23 19:19:18,031 [tserver.TabletServer] WARN : Failed to get multiscan result
> java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.EOFException
>         at org.apache.accumulo.tserver.TabletServer$ScanTask.get(TabletServer.java:755)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.continueMultiScan(TabletServer.java:1417)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.startMultiScan(TabletServer.java:1382)
>         at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.accumulo.trace.instrument.thrift.TraceWrap$1.invoke(TraceWrap.java:63)
>         at $Proxy15.startMultiScan(Unknown Source)
>         at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2252)
>         at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2236)
>         at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
>         at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
>         at org.apache.accumulo.server.util.TServerUtils$TimedProcessor.process(TServerUtils.java:171)
>         at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:478)
>         at org.apache.accumulo.server.util.TServerUtils$THsHaServer$Invocation.run(TServerUtils.java:231)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
>         at java.lang.Thread.run(Thread.java:662)
> Caused by: java.lang.RuntimeException: java.io.EOFException
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1126)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         ... 5 more
> Caused by: java.io.EOFException
>         at java.io.DataInputStream.readByte(DataInputStream.java:250)
>         at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
>         at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:675)
>         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.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
>         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)
>         at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
>         at org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:81)
>         at org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:241)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1562)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1669)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1115)
>         ... 6 more
> 2014-01-23 19:19:18,036 [thrift.ProcessFunction] ERROR: Internal error processing startMultiScan
> java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.EOFException
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.continueMultiScan(TabletServer.java:1430)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.startMultiScan(TabletServer.java:1382)
>         at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.accumulo.trace.instrument.thrift.TraceWrap$1.invoke(TraceWrap.java:63)
>         at $Proxy15.startMultiScan(Unknown Source)
>         at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2252)
>         at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.getResult(TabletClientService.java:2236)
>         at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
>         at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
>         at org.apache.accumulo.server.util.TServerUtils$TimedProcessor.process(TServerUtils.java:171)
>         at org.apache.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:478)
>         at org.apache.accumulo.server.util.TServerUtils$THsHaServer$Invocation.run(TServerUtils.java:231)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
>         at java.lang.Thread.run(Thread.java:662)
> Caused by: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.EOFException
>         at org.apache.accumulo.tserver.TabletServer$ScanTask.get(TabletServer.java:755)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler.continueMultiScan(TabletServer.java:1417)
>         ... 18 more
> Caused by: java.lang.RuntimeException: java.io.EOFException
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1126)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         ... 5 more
> Caused by: java.io.EOFException
>         at java.io.DataInputStream.readByte(DataInputStream.java:250)
>         at org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:314)
>         at org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:675)
>         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.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
>         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)
>         at org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:101)
>         at org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:81)
>         at org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:241)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
>         at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1562)
>         at org.apache.accumulo.tserver.Tablet.lookup(Tablet.java:1669)
>         at org.apache.accumulo.tserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:1115)
>         ... 6 more
> {noformat}



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