Details
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Bug
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Status: Resolved
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Major
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Resolution: Invalid
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None
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None
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None
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None
Description
Running a query on the wikisearch example results in this exception in the tablet server logs:
009 20:36:17,364 [thrift.TabletClientService$Processor] ERROR: Internal error processing startMultiScan
java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.UnsupportedOperationException
at org.apache.accumulo.server.tabletserver.TabletServer$ThriftClientHandler.continueMultiScan(TabletServer.java:1321)
at org.apache.accumulo.server.tabletserver.TabletServer$ThriftClientHandler.startMultiScan(TabletServer.java:1272)
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at cloudtrace.instrument.thrift.TraceWrap$1.invoke(TraceWrap.java:58)
at $Proxy2.startMultiScan(Unknown Source)
at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor$startMultiScan.process(TabletClientService.java:2164)
at org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Processor.process(TabletClientService.java:2037)
at org.apache.accumulo.server.util.TServerUtils$TimedProcessor.process(TServerUtils.java:151)
at org.apache.thrift.server.TNonblockingServer$FrameBuffer.invoke(TNonblockingServer.java:631)
at org.apache.accumulo.server.util.TServerUtils$THsHaServer$Invocation.run(TServerUtils.java:199)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
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.UnsupportedOperationException
at org.apache.accumulo.server.tabletserver.TabletServer$ScanTask.get(TabletServer.java:661)
at org.apache.accumulo.server.tabletserver.TabletServer$ThriftClientHandler.continueMultiScan(TabletServer.java:1308)
... 15 more
Caused by: java.lang.UnsupportedOperationException
at org.apache.accumulo.core.iterators.WrappingIterator.deepCopy(WrappingIterator.java:45)
at org.apache.accumulo.core.iterators.user.VersioningIterator.<init>(VersioningIterator.java:48)
at org.apache.accumulo.core.iterators.user.VersioningIterator.deepCopy(VersioningIterator.java:44)
at org.apache.accumulo.core.iterators.user.VersioningIterator.deepCopy(VersioningIterator.java:36)
at org.apache.accumulo.examples.wikisearch.iterator.OptimizedQueryIterator.init(OptimizedQueryIterator.java:71)
at org.apache.accumulo.core.iterators.IteratorUtil.loadIterators(IteratorUtil.java:225)
at org.apache.accumulo.core.iterators.IteratorUtil.loadIterators(IteratorUtil.java:206)
at org.apache.accumulo.server.tabletserver.Tablet$ScanDataSource.createIterator(Tablet.java:2077)
at org.apache.accumulo.server.tabletserver.Tablet$ScanDataSource.iterator(Tablet.java:2019)
at org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:163)
at org.apache.accumulo.server.tabletserver.Tablet.lookup(Tablet.java:1605)
at org.apache.accumulo.server.tabletserver.Tablet.lookup(Tablet.java:1706)
at org.apache.accumulo.server.tabletserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:988)
at cloudtrace.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)
... 1 more
Deleting the iterator on the wiki table allows searches to run.