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https://issues.apache.org/jira/browse/CASSANDRA-2235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12998870#comment-12998870
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Jonathan Ellis commented on CASSANDRA-2235:
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bq. 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
fixed in CASSANDRA-2218
> 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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