[
https://issues.apache.org/jira/browse/ACCUMULO-380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Newton resolved ACCUMULO-380.
----------------------------------
Resolution: Invalid
Mystery solved: follow the installation instructions and copy the latest
wikisearch-query jar into accumulo/lib/ext.
> UnsupportedOperation exception on wikisearch example
> ----------------------------------------------------
>
> Key: ACCUMULO-380
> URL: https://issues.apache.org/jira/browse/ACCUMULO-380
> Project: Accumulo
> Issue Type: Bug
> Reporter: Eric Newton
> Assignee: Eric Newton
> Fix For: 1.4.0
>
>
> Running a query on the wikisearch example results in this exception in the
> tablet server logs:
> {noformat}
> 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
> {noformat}
> Deleting the iterator on the wiki table allows searches to run.
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