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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10628) get JEMAlloc debug output out of nodetool output
Date Mon, 02 Nov 2015 14:08:27 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14985257#comment-14985257
] 

Sylvain Lebresne commented on CASSANDRA-10628:
----------------------------------------------

Was was the ticket that introduced that output?

> get JEMAlloc debug output out of nodetool output
> ------------------------------------------------
>
>                 Key: CASSANDRA-10628
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10628
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jim Witschey
>            Assignee: Robert Stupp
>             Fix For: 2.2.4, 3.0.0
>
>
> This is a followup ticket for CASSANDRA-10581. The consensus on the Cassandra TE is that
the debug output for loading JEMAlloc is helpful (or at least harmless when starting C*, but
not when starting {{nodetool}}, which, it turns out, sources {{cassandra-env}}:
> https://github.com/apache/cassandra/blob/trunk/bin/nodetool#L53
> You can reproduce the excessive output with
> {code}
> ccm create test-nodetool-output -v git:cassandra-3.0 -n 1 ; ccm start --wait-for-binary-proto
; ccm node1 nodetool ring
> {code}
> The simplest solution would probably be to redirect the output of the sourcing to {{/dev/null/}}.
I don't know if that's the right thing to do; it may be better to move the {{LD_PRELOAD}}-setting
logic to {{bin/cassandra}}. I'm not sure what the reasoning would be for putting something
in one place or another, so I leave it to the dev team to decide on the best solution.
> Assigning [~snazy] for now; feel free to reassign



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