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From "Alex Petrov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-14742) Race Condition in batchlog replica collection
Date Thu, 27 Sep 2018 08:48:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-14742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16629957#comment-16629957
] 

Alex Petrov commented on CASSANDRA-14742:
-----------------------------------------

Thank you, have addressed all three comments and took a  liberty to introduce {{localDatacenter}}
and {{localRack}} shortcuts.

> Race Condition in batchlog replica collection
> ---------------------------------------------
>
>                 Key: CASSANDRA-14742
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14742
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Alex Petrov
>            Assignee: Alex Petrov
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> When we collect nodes for it in {{StorageProxy#getBatchlogReplicas}}, we already filter
out down replicas; subsequently they get picked up and taken for liveAndDown.
> There's a possible race condition due to picking tokens from token metadata twice (once
in {{StorageProxy#getBatchlogReplicas}} and second one in {{ReplicaPlan#forBatchlogWrite}})



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