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From Enrico Olivelli <eolive...@gmail.com>
Subject Re: Four letter word command to get memory usage (patch included)
Date Thu, 14 Feb 2019 16:40:29 GMT
It is also worth noting that we are also working on a new metrics
system and JVM information will be included in the new system.

https://issues.apache.org/jira/browse/ZOOKEEPER-3092

Enrico

Il giorno gio 14 feb 2019 alle ore 17:39 Andor Molnar
<andor@cloudera.com.invalid> ha scritto:
>
> Hi Bram,
>
> Thanks for the contribution. Please follow Enrico's instructions on how to
> officially contribute on the ZooKeeper project. Here's our guidelines:
> https://cwiki.apache.org/confluence/display/ZOOKEEPER/HowToContribute
>
> Additionally, 4lw has become deprecated, so we won't accept new features on
> that. You can add new Jetty command or JMX whichever suits you best. IMHO
> the best would be add to them both.
>
> Thanks,
> Andor
>
>
>
> On Thu, Feb 14, 2019 at 5:18 PM Enrico Olivelli <eolivelli@gmail.com> wrote:
>
> > Hi,
> > Can you please create a patch against master branch and create a PR in
> > github?
> >
> > Thank you
> >
> > Enrico
> >
> > Il giorno gio 14 feb 2019, 17:05 Bram Van Dam <bram.vandam@intix.eu> ha
> > scritto:
> >
> > > Hey folks,
> > >
> > > I needed a way to keep track of individual ZK instances' memory usage
> > > without using JMX, so I went and added a new four letter word: memo
> > >
> > > Example usage:
> > > # echo memo | nc 127.0.0.1 44011
> > > Maximum memory: 514850816
> > > Free memory: 479290568
> > > Total memory: 514850816
> > >
> > > This exposes the same data that ZOOKEEPER-716 logs, basically the
> > > runtime's maximum/free/total memory.
> > >
> > > Attached patch is against branch-3.4.13 as that's the version we're
> > > currently using.
> > >
> > > Any feedback is highly appreciated.
> > > Should I go ahead and create a PR/Jira issue?
> > >
> > > Thanks,
> > >
> > >  - Bram
> > >
> >

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