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Posted to commits@cassandra.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/04/28 04:06:04 UTC
[jira] [Commented] (CASSANDRA-13481) Provide a method for flushing
a CQLSSTableWriter
[ https://issues.apache.org/jira/browse/CASSANDRA-13481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15988156#comment-15988156 ]
ASF GitHub Bot commented on CASSANDRA-13481:
--------------------------------------------
GitHub user Garciat opened a pull request:
https://github.com/apache/cassandra/pull/107
[CASSANDRA-13481] Provide a method for flushing a CQLSSTableWriter
Jira: https://issues.apache.org/jira/browse/CASSANDRA-13481
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/Garciat/cassandra CASSANDRA-13481
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/cassandra/pull/107.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #107
----
commit 23c913f4642cc2463966f86dba6a24b987bc0f0a
Author: Gabriel Garcia <ga...@live.com>
Date: 2017-04-28T03:33:28Z
Provide a method for flushing a CQLSSTableWriter.
----
> Provide a method for flushing a CQLSSTableWriter
> ------------------------------------------------
>
> Key: CASSANDRA-13481
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13481
> Project: Cassandra
> Issue Type: Wish
> Reporter: Gabriel Garcia
> Priority: Minor
> Fix For: 3.11.0
>
>
> The buffer size estimation in SSTableSimpleUnsortedWriter is not very accurate and causes OOM errors quite often (or lots of GC pressure) for my specific use case (rows that vary greatly in # of columns). I guess if the user knows their data well enough, they can schedule flushes when really needed.
> It's just an idea, not sure if flushing would actually help. However, playing with bufferSizeInMB is not of much help.
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