cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "T Jake Luciani (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-8639) Can OOM on CL replay with dense mutations
Date Fri, 04 Dec 2015 16:47:11 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8639?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15041696#comment-15041696
] 

T Jake Luciani edited comment on CASSANDRA-8639 at 12/4/15 4:46 PM:
--------------------------------------------------------------------

I'm thinking this is more of an improvement than a bug.  Would you be ok with me only putting
this in 3.2?


was (Author: tjake):
I'm thinking this is more of an improvement than a bug.  Would you be ok with me only putting
this in 3.1?

> Can OOM on CL replay with dense mutations
> -----------------------------------------
>
>                 Key: CASSANDRA-8639
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8639
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Local Write-Read Paths
>            Reporter: T Jake Luciani
>            Assignee: Ariel Weisberg
>            Priority: Minor
>             Fix For: 3.2
>
>
> If you write dense mutations with many clustering keys, the replay of the CL can quickly
overwhelm a node on startup.  This looks to be caused by the fact we only ensure there are
1000 mutations in flight at a time. but those mutations could have thousands of cells in them.
> A better approach would be to limit the CL replay to the amount of memory in flight using
cell.unsharedHeapSize()



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message