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https://issues.apache.org/jira/browse/KARAF-5628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16400500#comment-16400500
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Guillaume Nodet commented on KARAF-5628:
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[~riconeubauer] feel free to work on a PR, that would definitely help speed
things up !
> Corrupt gc.log due to unseparated VM settings
> ---------------------------------------------
>
> Key: KARAF-5628
> URL: https://issues.apache.org/jira/browse/KARAF-5628
> Project: Karaf
> Issue Type: Bug
> Components: karaf-core
> Reporter: Rico Neubauer
> Assignee: Jean-Baptiste Onofré
> Priority: Major
>
> The VM properties used for the start, stop, status and client scripts all use
> one common configuration of the VM properties, like Xmx and GC settings.
> This has one particular issue when activating the gc.log (-Xloggc:gc.log with
> Oracle-VM): Invoking e.g. status while Karaf is running, uses the same
> settings, thus points to the same file and corrupts it with NUL values (see
> here for details:
> [Stackoverflow|[https://stackoverflow.com/questions/8353401/garbage-collector-log-loggc-file-rotation-with-logrotate-does-not-work-properl]]
> ).
>
> I would like to request the possibility to configure the VM properties for
> starting the instance independently from the maintenance scripts - due to the
> issue and also since e.g. running status with lots of heap (if instance is
> configured to it) is unneeded.
>
> Even making it broader, I think it would also make sense to be able to
> configure the settings completely, since currently some things are hard-coded
> in the scripts, like the _-Xdum_p and _-Xlp_ settings for AIX, where I
> personally would like to configure it to _-Xdump:heap:events=gpf,opts=PHD_,
> which is currently not possible using the configuration only. Also especially
> for AIX, there is _LDR_CNTRL=MAXDATA=0xB0000000@DSA_, which might not be
> desired when running with heaps larger than 3GB.
>
> If you agree on a separation, I would make a proposal as PR. Please let me
> know.
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