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From "John Vines (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-2351) Master memory leak
Date Tue, 11 Feb 2014 21:55:19 GMT


John Vines commented on ACCUMULO-2351:

Unfortunately the default config doesn't show the OOM stack trace when it OOMs, you just get
the OnOutOfMemory message about kill -9 PID. I've since added configurations for it to heap
dump on OOM, but who knows when I can get it to occur again.

> Master memory leak
> ------------------
>                 Key: ACCUMULO-2351
>                 URL:
>             Project: Accumulo
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 1.5.0
>            Reporter: John Vines
> This has been seen a few times. Master with Xms1g and Xmx4g, which should be more than
enough. Most recent case, with 44 nodes, 1.74k tablets, and 22 tables including !METADATA.
There are NO conspicuous messages in the master (just DefaultLoadBalancer messages for each
table). Possible exception for an error of "received invalid frame size of -..., are you using
TTframeProtocol (can't remember exact message). But then the master out file has a message
about OoM received, kill -9. 
> I don't really know how to get more information out of it for when this does occur again.

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