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From "Luke Arrigoni (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-14355) Memory leak
Date Wed, 06 Jun 2018 12:40:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-14355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16503228#comment-16503228
] 

Luke Arrigoni commented on CASSANDRA-14355:
-------------------------------------------

Has anyone determined a method of recreating this leak under load test conditions to bring
the reproducing time down? This ticket would be easier to work on if we could recreate within
hours instead of weeks.

> Memory leak
> -----------
>
>                 Key: CASSANDRA-14355
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14355
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Debian Jessie, OpenJDK 1.8.0_151
>            Reporter: Eric Evans
>            Priority: Major
>             Fix For: 3.11.3
>
>         Attachments: 01_Screenshot from 2018-04-04 14-24-00.png, 02_Screenshot from 2018-04-04
14-28-33.png, 03_Screenshot from 2018-04-04 14-24-50.png
>
>
> We're seeing regular, frequent {{OutOfMemoryError}} exceptions.  Similar to CASSANDRA-13754,
an analysis of the heap dumps shows the heap consumed by the {{threadLocals}} member of the
instances of {{io.netty.util.concurrent.FastThreadLocalThread}}.



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