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https://issues.apache.org/jira/browse/CASSANDRA-8735?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuki Morishita updated CASSANDRA-8735:
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Attachment: 8735-v2.patch
I think randomize filtered endpoint is necessary anyway, otherwise those
deterministic two nodes always get batch log and will show high load compare to
other nodes in the rack.
Updated patch attached so that we don't need to cast for shuffle and modified
test to remove deterministic assertion.
> Batch log replication is not randomized when there are only 2 racks
> -------------------------------------------------------------------
>
> Key: CASSANDRA-8735
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8735
> Project: Cassandra
> Issue Type: Bug
> Reporter: Yuki Morishita
> Assignee: Mihai Suteu
> Priority: Minor
> Fix For: 2.1.x, 2.2.x
>
> Attachments: 8735-v2.patch, CASSANDRA-8735.patch
>
>
> Batch log replication is not randomized and the same 2 nodes can be picked up
> when there are only 2 racks in the cluster.
> https://github.com/apache/cassandra/blob/cassandra-2.0.11/src/java/org/apache/cassandra/service/BatchlogEndpointSelector.java#L72-73
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