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From "T Jake Luciani (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-8448) "Comparison method violates its general contract" in AbstractEndpointSnitch
Date Tue, 20 Jan 2015 17:09:47 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-8448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

T Jake Luciani updated CASSANDRA-8448:
--------------------------------------
    Fix Version/s:     (was: 2.0.12)
                   2.0.13

> "Comparison method violates its general contract" in AbstractEndpointSnitch
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-8448
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8448
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: J.B. Langston
>            Assignee: Brandon Williams
>             Fix For: 2.1.3, 2.0.13
>
>         Attachments: 8448.txt
>
>
> Seen in both 1.2 and 2.0.  The error is occurring here: https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/locator/AbstractEndpointSnitch.java#L49
> {code}
> ERROR [Thrift:9] 2014-12-04 20:12:28,732 CustomTThreadPoolServer.java (line 219) Error
occurred during processing of message.
> com.google.common.util.concurrent.UncheckedExecutionException: java.lang.IllegalArgumentException:
Comparison method violates its general contract!
> 	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2199)
> 	at com.google.common.cache.LocalCache.get(LocalCache.java:3932)
> 	at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3936)
> 	at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4806)
> 	at org.apache.cassandra.service.ClientState.authorize(ClientState.java:352)
> 	at org.apache.cassandra.service.ClientState.ensureHasPermission(ClientState.java:224)
> 	at org.apache.cassandra.service.ClientState.hasAccess(ClientState.java:218)
> 	at org.apache.cassandra.service.ClientState.hasColumnFamilyAccess(ClientState.java:202)
> 	at org.apache.cassandra.thrift.CassandraServer.createMutationList(CassandraServer.java:822)
> 	at org.apache.cassandra.thrift.CassandraServer.batch_mutate(CassandraServer.java:954)
> 	at com.datastax.bdp.server.DseServer.batch_mutate(DseServer.java:576)
> 	at org.apache.cassandra.thrift.Cassandra$Processor$batch_mutate.getResult(Cassandra.java:3922)
> 	at org.apache.cassandra.thrift.Cassandra$Processor$batch_mutate.getResult(Cassandra.java:3906)
> 	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
> 	at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
> 	at org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:201)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.IllegalArgumentException: Comparison method violates its general
contract!
> 	at java.util.TimSort.mergeHi(TimSort.java:868)
> 	at java.util.TimSort.mergeAt(TimSort.java:485)
> 	at java.util.TimSort.mergeCollapse(TimSort.java:410)
> 	at java.util.TimSort.sort(TimSort.java:214)
> 	at java.util.TimSort.sort(TimSort.java:173)
> 	at java.util.Arrays.sort(Arrays.java:659)
> 	at java.util.Collections.sort(Collections.java:217)
> 	at org.apache.cassandra.locator.AbstractEndpointSnitch.sortByProximity(AbstractEndpointSnitch.java:49)
> 	at org.apache.cassandra.locator.DynamicEndpointSnitch.sortByProximityWithScore(DynamicEndpointSnitch.java:157)
> 	at org.apache.cassandra.locator.DynamicEndpointSnitch.sortByProximityWithBadness(DynamicEndpointSnitch.java:186)
> 	at org.apache.cassandra.locator.DynamicEndpointSnitch.sortByProximity(DynamicEndpointSnitch.java:151)
> 	at org.apache.cassandra.service.StorageProxy.getLiveSortedEndpoints(StorageProxy.java:1408)
> 	at org.apache.cassandra.service.StorageProxy.getLiveSortedEndpoints(StorageProxy.java:1402)
> 	at org.apache.cassandra.service.AbstractReadExecutor.getReadExecutor(AbstractReadExecutor.java:148)
> 	at org.apache.cassandra.service.StorageProxy.fetchRows(StorageProxy.java:1223)
> 	at org.apache.cassandra.service.StorageProxy.read(StorageProxy.java:1165)
> 	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:255)
> 	at org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:225)
> 	at org.apache.cassandra.auth.Auth.selectUser(Auth.java:243)
> 	at org.apache.cassandra.auth.Auth.isSuperuser(Auth.java:84)
> 	at org.apache.cassandra.auth.AuthenticatedUser.isSuper(AuthenticatedUser.java:50)
> 	at org.apache.cassandra.auth.CassandraAuthorizer.authorize(CassandraAuthorizer.java:69)
> 	at org.apache.cassandra.service.ClientState$1.load(ClientState.java:338)
> 	at org.apache.cassandra.service.ClientState$1.load(ClientState.java:335)
> 	at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3522)
> 	at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2315)
> 	at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2278)
> 	at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2193)
> 	... 18 more
> {code}
> Workaround: Setting  -Djava.util.Arrays.useLegacyMergeSort=true causes the error to go
away.



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