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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (CASSANDRA-2235) Counter AES performance issue
Date Wed, 16 Mar 2011 15:14:34 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sylvain Lebresne resolved CASSANDRA-2235.
-----------------------------------------

    Resolution: Fixed

Marking resolved since either CASSANDRA-2218 or CASSANDRA-2288 fixed this.

> Counter AES performance issue
> -----------------------------
>
>                 Key: CASSANDRA-2235
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2235
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Chris Goffinet
>            Assignee: Chris Goffinet
>             Fix For: 0.8
>
>
> We noticed tonight when trying out AES for Counters in trunk, there is a serious performance
issue when inlining the SSTables. We found that the way we are seeking in the file, BRAF keeps
flushing out its buffer of 8MB, and we call dfile.sync() on every row. We are finalizing a
patch to write a new SSTable on rebuild, instead of inlining. 

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