[ https://issues.apache.org/jira/browse/ACCUMULO-1534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13806116#comment-13806116
]
Keith Turner commented on ACCUMULO-1534:
----------------------------------------
[~chris waring] identified a constant in tfile that defaults to 256K. This may be the problem.
I will look into adjusting the default lower and see if it causes any performance problems.
> Tablet Server using large number of decompressors during a scan
> ---------------------------------------------------------------
>
> Key: ACCUMULO-1534
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1534
> Project: Accumulo
> Issue Type: Bug
> Affects Versions: 1.4.3
> Reporter: Mike Drob
> Fix For: 1.5.1, 1.6.0
>
>
> I believe this issue is similar to ACCUMULO-665. We've run into a situation where a complex
iterator tree creates a large number of decompressors from the underlying CodecPool for serving
scans. Each decompressor holds on to a large buffer and the total volume ends up killing the
tserver.
> We have verified that turning off compression makes this problem go away.
--
This message was sent by Atlassian JIRA
(v6.1#6144)
|