[jira] [Commented] (CASSANDRA-6404) Tools emit ERRORs and WARNINGs about missing javaagent

["Daniel Smedegaard Buus (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-6404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13895900#comment-13895900 ] 

Daniel Smedegaard Buus commented on CASSANDRA-6404:
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I know this reads, "Fixed", but I'm using 2.0.4 on Ubuntu 14.04, and I see this when running "nodetool ring".

Should I be concerned about that, or?

Thanks :)

> Tools emit ERRORs and WARNINGs about missing javaagent 
> -------------------------------------------------------
>
>                 Key: CASSANDRA-6404
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6404
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Sam Tunnicliffe
>            Assignee: Sam Tunnicliffe
>            Priority: Minor
>             Fix For: 1.2.14, 2.0.4
>
>         Attachments: 0001-Set-javaagent-when-running-tools-in-bin.patch
>
>
> The combination of CASSANDRA-6107 & CASSANDRA-6293 has lead to a number of the tools shipped in bin/ to display the following warnings when run:
> {code}
> ERROR 15:21:47,337 Unable to initialize MemoryMeter (jamm not specified as javaagent).  This means Cassandra will be unable to measure object sizes accurately and may consequently OOM.
>  WARN 15:21:47,506 MemoryMeter uninitialized (jamm not specified as java agent); KeyCache size in JVM Heap will not be calculated accurately. Usually this means cassandra-env.sh disabled jamm because you are u
> {code}
> Although harmless, these are a bit disconcerting. The simplest fix seems to be to set the javaagent switch as we do for the main C* launch.



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