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https://issues.apache.org/jira/browse/CASSANDRA-9519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14626594#comment-14626594
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Benedict commented on CASSANDRA-9519:
-------------------------------------
Hmm. Yes, +1. Apologies for not spotting that snaffoo first time around (it's
all fine and good we were not modifying the original map, but swapping it while
we're using it is equally as bad)
> CASSANDRA-8448 Doesn't seem to be fixed
> ---------------------------------------
>
> Key: CASSANDRA-9519
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9519
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Jeremiah Jordan
> Assignee: Sylvain Lebresne
> Fix For: 2.1.x, 2.2.x
>
> Attachments: 9519.txt
>
>
> Still seeing the "Comparison method violates its general contract!" in 2.1.5
> {code}
> java.lang.IllegalArgumentException: Comparison method violates its general
> contract!
> at java.util.TimSort.mergeHi(TimSort.java:895) ~[na:1.8.0_45]
> at java.util.TimSort.mergeAt(TimSort.java:512) ~[na:1.8.0_45]
> at java.util.TimSort.mergeCollapse(TimSort.java:437) ~[na:1.8.0_45]
> at java.util.TimSort.sort(TimSort.java:241) ~[na:1.8.0_45]
> at java.util.Arrays.sort(Arrays.java:1512) ~[na:1.8.0_45]
> at java.util.ArrayList.sort(ArrayList.java:1454) ~[na:1.8.0_45]
> at java.util.Collections.sort(Collections.java:175) ~[na:1.8.0_45]
> at
> org.apache.cassandra.locator.AbstractEndpointSnitch.sortByProximity(AbstractEndpointSnitch.java:49)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.locator.DynamicEndpointSnitch.sortByProximityWithScore(DynamicEndpointSnitch.java:158)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.locator.DynamicEndpointSnitch.sortByProximityWithBadness(DynamicEndpointSnitch.java:187)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.locator.DynamicEndpointSnitch.sortByProximity(DynamicEndpointSnitch.java:152)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.service.StorageProxy.getLiveSortedEndpoints(StorageProxy.java:1530)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.service.StorageProxy.getRangeSlice(StorageProxy.java:1688)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:256)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:209)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:63)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:238)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:260)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> at
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:272)
> ~[cassandra-all-2.1.5.469.jar:2.1.5.469]
> {code}
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