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Posted to commits@cassandra.apache.org by "Kurt Greaves (JIRA)" <ji...@apache.org> on 2017/08/18 03:40:01 UTC

[jira] [Assigned] (CASSANDRA-12783) Break up large MV mutations to prevent OOMs

     [ https://issues.apache.org/jira/browse/CASSANDRA-12783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kurt Greaves reassigned CASSANDRA-12783:
----------------------------------------

    Assignee: Kurt Greaves

> Break up large MV mutations to prevent OOMs
> -------------------------------------------
>
>                 Key: CASSANDRA-12783
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12783
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Local Write-Read Paths, Materialized Views
>            Reporter: Carl Yeksigian
>            Assignee: Kurt Greaves
>             Fix For: 4.x
>
>
> We only use the code path added in CASSANDRA-12268 for the view builder because otherwise we would break the contract of the batchlog, where some mutations may be written and pushed out before the whole batch log has been saved.
> We would need to ensure that all of the updates make it to the batchlog before allowing the batchlog manager to try to replay them, but also before we start pushing out updates to the paired replicas.



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