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From "Corey J. Nolet (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-1357) Make debugging MiniAccumuloCluster easier
Date Wed, 08 May 2013 17:15:17 GMT


Corey J. Nolet commented on ACCUMULO-1357:

Hey Keith,

I agree with your MemoryUnit approach entirely. I almost implemented it that way but thought
it may be useful to give the users a familiar format to work with (at least the Xmx format
is familiar to me). You are right, though, in that the Xmx format is more error prone.

Yes on the debug mode. It seemed like the debug info belonged on the cluster class since that's
the thing actually applying the VM args but if the ports are going to be in the config then
the debug parameter should be as well.

I put ServerType class in a more global package because it seems like there would be more
uses for it in other parts of the API. I'll move it to the mini package until someone else
actually needs it.
> Make debugging MiniAccumuloCluster easier
> -----------------------------------------
>                 Key: ACCUMULO-1357
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Keith Turner
>            Assignee: Corey J. Nolet
>             Fix For: 1.6.0
>         Attachments: ACCUMULO-1357.1.patch
> When a problem occurs with MiniAccumuloCluster it can be difficult to debug.  Something
that may make this easier.
>  * The ability to easily access log files. (maybe have a method users could call to copy
log files to a target dir).
>  * Starting Accumulo server processes with remote JVM debugging enabled.  (this could
be a statup option, could have method users could call to get the debug ports)
> It would be nice if a unit test fails in a maven run if the MiniAcc logs files would
end up the target dir that contains info about test failures.  Make it as easy as possible
to do this from junit test.

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