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https://issues.apache.org/jira/browse/CASSANDRA-18194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17681410#comment-17681410
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David Capwell commented on CASSANDRA-18194:
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CI was mostly clean but looks like some builds failed in circle ci and not
caused by the tests... trunk has new changes so rebased and rerunning CI
> PaxosPrepare may add instances to the Electorate that are not in gossip
> -----------------------------------------------------------------------
>
> Key: CASSANDRA-18194
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18194
> Project: Cassandra
> Issue Type: Bug
> Components: Feature/Lightweight Transactions
> Reporter: David Capwell
> Assignee: David Capwell
> Priority: Normal
> Fix For: 4.1.x
>
>
> org.apache.cassandra.service.paxos.PaxosPrepare.RequestHandler#execute is
> given a list of electorate from the peer and attempts to compute its own,
> then replies back with this set.
> On the peer side, we then have the set we sent and the set from the other
> instance... we then fetch the EndpointState from Gossiper and store into a
> Map, a map we later attempt to inject into Gossip.
> It is possible that Gossiper does not know about the instance yet, so returns
> a null; causing a NullPointerException in downstream code.
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