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Date: Wed, 7 Dec 2016 23:53:59 +0000 (UTC)
From: "anmols (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Updated] (CASSANDRA-13006) Disable automatic heap dumps on
 OOM error
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archived-at: Wed, 07 Dec 2016 23:54:01 -0000


     [ https://issues.apache.org/jira/browse/CASSANDRA-13006?page=3Dcom.atl=
assian.jira.plugin.system.issuetabpanels:all-tabpanel ]

anmols updated CASSANDRA-13006:
-------------------------------
    Fix Version/s: 3.0.9
           Status: Patch Available  (was: Open)

Disable heap dumps if JVM option HeapDumpOnOutOfMemoryError is not set.

> Disable automatic heap dumps on OOM error
> -----------------------------------------
>
>                 Key: CASSANDRA-13006
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1300=
6
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Configuration
>            Reporter: anmols
>            Assignee: Benjamin Lerer
>            Priority: Minor
>             Fix For: 3.0.9
>
>         Attachments: 13006-3.0.9.txt
>
>
> With=C2=A0CASSANDRA-9861, a change was added to enable collecting heap du=
mps by default if the process encountered an OOM error. These heap dumps ar=
e stored in the Apache Cassandra home directory unless configured otherwise=
 (see=C2=A0[Cassandra Support Document|https://support.datastax.com/hc/en-u=
s/articles/204225959-Generating-and-Analyzing-Heap-Dumps] for this feature)=
.
> =C2=A0
> The creation and storage of heap dumps aides debugging and investigative =
workflows, but is not be desirable for a production environment where these=
 heap dumps may occupy a large amount of disk space and require manual inte=
rvention for cleanups.=C2=A0
> =C2=A0
> Managing heap dumps on out of memory errors and configuring the paths for=
 these heap dumps are available as JVM options in JVM. The current behavior=
 conflicts with the Boolean JVM flag HeapDumpOnOutOfMemoryError.=C2=A0
> =C2=A0
> A patch can be proposed here that would make the heap dump on OOM error h=
onor the=C2=A0HeapDumpOnOutOfMemoryError=C2=A0flag. Users who would want to=
 still generate heap dumps on OOM errors can set the=C2=A0-XX:+HeapDumpOnOu=
tOfMemoryError=C2=A0JVM option.


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