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From "Paulo Motta (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-11660) Dubious call to remove in CompactionManager.java
Date Tue, 26 Apr 2016 15:36:13 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-11660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Paulo Motta updated CASSANDRA-11660:
------------------------------------
    Status: Ready to Commit  (was: Patch Available)

> Dubious call to remove in CompactionManager.java
> ------------------------------------------------
>
>                 Key: CASSANDRA-11660
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11660
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Compaction
>            Reporter: Max Schaefer
>            Assignee: Marcus Eriksson
>            Priority: Minor
>
> I'm surprised by [this|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/db/compaction/CompactionManager.java#L1382]
call to {{Iterator.remove()}} in {{org.apache.cassandra.db.compaction.antiCompactGroup}}:
the iterator in question seems to come from [org.apache.cassandra.db.lifecycle.LifecycleTransaction.originals()|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/db/lifecycle/LifecycleTransaction.java#L419],
which returns an unmodifiable set, so I would expect this call to always fail with an {{UnsupportedOperationException}}.



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