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https://issues.apache.org/jira/browse/CASSANDRA-3655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175090#comment-13175090
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Sylvain Lebresne commented on CASSANDRA-3655:
---------------------------------------------
+1 (It would help to know if the log from the error had "Skipping row X" to
know if the hypothesis is correct but in any case I agree we shouldn't ignore
those exceptions)
> NPE when running upgradesstables
> --------------------------------
>
> Key: CASSANDRA-3655
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3655
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.0.5
> Environment: 1.0.5 + patch for
> https://issues.apache.org/jira/browse/CASSANDRA-3618
> Reporter: Tupshin Harper
> Assignee: Tupshin Harper
> Labels: compaction
> Fix For: 1.0.7
>
> Attachments: 3655.txt
>
>
> Running a test upgrade from 0.7(version f sstables) to 1.0.
> upgradesstables runs for about 40 minutes and then NPE's when trying to
> retrieve a key.
> No files have been succesfully upgraded. Likely related is that scrub
> (without having run upgrade) consumes all RAM and OOMs.
> Possible theory is that a lot of paths call IPartitioner's decorateKey, and,
> at least in the randompartitioner's implementation, if any of those callers
> pass a null ByteBuffer, they key will be null in the stack trace below.
> java.util.concurrent.ExecutionException: java.lang.NullPointerException
> at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
> at java.util.concurrent.FutureTask.get(FutureTask.java:83)
> at
> org.apache.cassandra.db.compaction.CompactionManager.performAllSSTableOperation(CompactionManager.java:203)
> at
> org.apache.cassandra.db.compaction.CompactionManager.performSSTableRewrite(CompactionManager.java:219)
> at
> org.apache.cassandra.db.ColumnFamilyStore.sstablesRewrite(ColumnFamilyStore.java:970)
> at
> org.apache.cassandra.service.StorageService.upgradeSSTables(StorageService.java:1540)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:93)
> at
> com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:27)
> at
> com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:120)
> at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:262)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
> at
> com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
> at
> javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1427)
> at
> javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72)
> at
> javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1265)
> at
> javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1360)
> at
> javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:788)
> at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
> at sun.rmi.transport.Transport$1.run(Transport.java:159)
> at java.security.AccessController.doPrivileged(Native Method)
> at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
> at
> sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
> at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
> at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
> Caused by: java.lang.NullPointerException
> at
> org.apache.cassandra.db.compaction.PrecompactedRow.removeDeletedAndOldShards(PrecompactedRow.java:65)
> at
> org.apache.cassandra.db.compaction.PrecompactedRow.<init>(PrecompactedRow.java:92)
> at
> org.apache.cassandra.db.compaction.CompactionController.getCompactedRow(CompactionController.java:137)
> at
> org.apache.cassandra.db.compaction.CompactionIterable$Reducer.getReduced(CompactionIterable.java:102)
> at
> org.apache.cassandra.db.compaction.CompactionIterable$Reducer.getReduced(CompactionIterable.java:87)
> at
> org.apache.cassandra.utils.MergeIterator$OneToOne.computeNext(MergeIterator.java:200)
> at
> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:140)
> at
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:135)
> at com.google.common.collect.Iterators$7.computeNext(Iterators.java:614)
> at
> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:140)
> at
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:135)
> at
> org.apache.cassandra.db.compaction.CompactionTask.execute(CompactionTask.java:172)
> at
> org.apache.cassandra.db.compaction.CompactionManager$4.perform(CompactionManager.java:229)
> at
> org.apache.cassandra.db.compaction.CompactionManager$2.call(CompactionManager.java:182)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> ... 3 more
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