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https://issues.apache.org/jira/browse/CASSANDRA-2554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis updated CASSANDRA-2554:
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Attachment: 2554-0.7.txt
> Move gossip heartbeats [back] to its own thread
> -----------------------------------------------
>
> Key: CASSANDRA-2554
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2554
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7.0
> Reporter: Jonathan Ellis
> Assignee: Jonathan Ellis
> Fix For: 0.7.6
>
> Attachments: 2554-0.7.txt
>
>
> Gossip heartbeat *really* needs to run every 1s or other nodes may mark us
> down. But gossip currently shares an executor thread with other tasks.
> I see at least two of these could cause blocking: hint cleanup post-delivery
> and flush-expired-memtables, both of which call forceFlush which will block
> if the flush queue + threads are full.
> We've run into this before (CASSANDRA-2253); we should move Gossip back to
> its own dedicated executor or it will keep happening whenever someone
> accidentally puts something on the "shared" executor that can block.
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