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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4221) Error while deleting a columnfamily that is being compacted.
Date Wed, 09 May 2012 19:13:49 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13271710#comment-13271710
] 

Jonathan Ellis commented on CASSANDRA-4221:
-------------------------------------------

That takes us back to the Bad Old Days pre-CASSANDRA-3116, though.  We should be able to fix
w/o resorting to A Big Lock.
                
> Error while deleting a columnfamily that is being compacted.
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-4221
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4221
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.0
>         Environment: ccm, dtest, cassandra-1.1. The error does not happen in cassandra-1.0.
>            Reporter: Tyler Patterson
>            Assignee: Pavel Yaskevich
>             Fix For: 1.1.1
>
>         Attachments: CASSANDRA-4230.patch
>
>
> The following dtest command produces an error:
> {code}export CASSANDRA_VERSION=git:cassandra-1.1; nosetests --nocapture --nologcapture
concurrent_schema_changes_test.py:TestConcurrentSchemaChanges.load_test{code}
> Here is the error:
> {code}
> Error occured during compaction
> java.util.concurrent.ExecutionException: java.io.IOError: java.io.FileNotFoundException:
/tmp/dtest-6ECMgy/test/node1/data/Keyspace1/Standard1/Keyspace1-Standard1-hc-47-Data.db (No
such file or directory)
> 	at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:111)
> 	at org.apache.cassandra.db.compaction.CompactionManager.performMaximal(CompactionManager.java:239)
> 	at org.apache.cassandra.db.ColumnFamilyStore.forceMajorCompaction(ColumnFamilyStore.java:1580)
> 	at org.apache.cassandra.service.StorageService.forceTableCompaction(StorageService.java:1770)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:616)
> 	at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:111)
> 	at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:45)
> 	at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:226)
> 	at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138)
> 	at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:251)
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:857)
> 	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:795)
> 	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1450)
> 	at javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:90)
> 	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1285)
> 	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1383)
> 	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:807)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:616)
> 	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:322)
> 	at sun.rmi.transport.Transport$1.run(Transport.java:177)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
> 	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553)
> 	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808)
> 	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> 	at java.lang.Thread.run(Thread.java:679)
> Caused by: java.io.IOError: java.io.FileNotFoundException: /tmp/dtest-6ECMgy/test/node1/data/Keyspace1/Standard1/Keyspace1-Standard1-hc-47-Data.db
(No such file or directory)
> 	at org.apache.cassandra.io.sstable.SSTableScanner.<init>(SSTableScanner.java:61)
> 	at org.apache.cassandra.io.sstable.SSTableReader.getDirectScanner(SSTableReader.java:839)
> 	at org.apache.cassandra.io.sstable.SSTableReader.getDirectScanner(SSTableReader.java:851)
> 	at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.getScanners(AbstractCompactionStrategy.java:142)
> 	at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.getScanners(AbstractCompactionStrategy.java:148)
> 	at org.apache.cassandra.db.compaction.CompactionTask.execute(CompactionTask.java:121)
> 	at org.apache.cassandra.db.compaction.CompactionManager$6.runMayThrow(CompactionManager.java:264)
> 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> 	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> 	... 3 more
> Caused by: java.io.FileNotFoundException: /tmp/dtest-6ECMgy/test/node1/data/Keyspace1/Standard1/Keyspace1-Standard1-hc-47-Data.db
(No such file or directory)
> 	at java.io.RandomAccessFile.open(Native Method)
> 	at java.io.RandomAccessFile.<init>(RandomAccessFile.java:233)
> 	at org.apache.cassandra.io.util.RandomAccessReader.<init>(RandomAccessReader.java:67)
> 	at org.apache.cassandra.io.util.RandomAccessReader.open(RandomAccessReader.java:102)
> 	at org.apache.cassandra.io.util.RandomAccessReader.open(RandomAccessReader.java:87)
> 	at org.apache.cassandra.io.sstable.SSTableReader.openDataReader(SSTableReader.java:985)
> 	at org.apache.cassandra.io.sstable.SSTableScanner.<init>(SSTableScanner.java:56)
> 	... 13 more
> {code}
> For reference, here is the dtest function that causes the failure. The error happens
on the line near the bottom that drops the columnfamily:
> {code}
>     def load_test(self):                                                        
>         """                                                                     
>         apply schema changes while the cluster is under load.                   
>         """                                                                     
>         debug("load_test()")                                                    
>                                                                                 
>         cluster = self.cluster                                                  
>         cluster.populate(1).start()                                             
>         node1 = cluster.nodelist()[0]                                           
>         wait(2)                                                                 
>         cursor = self.cql_connection(node1).cursor()                            
>                                                                                 
>         def stress(args=[]):                                                    
>             debug("Stressing")                                                  
>             node1.stress(args)                                                  
>             debug("Done Stressing")                                             
>                                                                                 
>         def compact():                                                          
>             debug("Compacting...")                                              
>             node1.nodetool('compact')                                           
>             debug("Done Compacting.")                                           
>                                                                                 
>         # put some data into the cluster                                        
>         stress(['--num-keys=1000000'])                                          
>                                                                                 
>         # now start compacting...                   
>         tcompact = Thread(target=compact)                                       
>         tcompact.start()                                                        
>         wait(1)                                                                 
>                                                                                 
>         # now the cluster is under a lot of load. Make some schema changes.     
>         cursor.execute("USE Keyspace1")                                         
>         wait(1)                                                                 
>         cursor.execute("DROP COLUMNFAMILY Standard1")                           
>                                                                                 
>         wait(3)                                                                 
>                                                                                 
>         cursor.execute("CREATE COLUMNFAMILY Standard1 (KEY text PRIMARY KEY)")  
>                                                                                 
>         tcompact.join()                                                         
>  
> {code}
> Again, the error happens on cassandra-1.1, but not on cassandra-1.0.

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