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From "Sam Tunnicliffe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-7765) Don't use strict endpoint selection for range movements where RF == node count
Date Wed, 13 Aug 2014 20:22:13 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-7765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sam Tunnicliffe updated CASSANDRA-7765:
---------------------------------------

    Attachment: 7765.txt

> Don't use strict endpoint selection for range movements where RF == node count
> ------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-7765
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7765
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Sam Tunnicliffe
>            Priority: Minor
>         Attachments: 7765.txt
>
>
> Post CASSANDRA-2434, we should skip strict endpoint selection for ranges  where RF ==
the number of nodes in the cluster otherwise we hit the following assertion in {{RangeStreamer.getAllRangesWithStrictSourcesFor}}
> {code}
> if (oldEndpoints.size() == strat.getReplicationFactor())
> {
>     oldEndpoints.removeAll(newEndpoints);
>     assert oldEndpoints.size() == 1 : "Expected 1 endpoint but found " + oldEndpoints.size();
> }
> {code}
> I think this is a fairly niche case, plus there's a workaround in the {{-Dcassandra.consistent.rangemovement=false}}
option. 



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