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Date: Thu, 7 Jan 2016 11:40:53 -0300
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Subject: Re: Zookeeper without JMX ?
From: Jorge Fonseca <jcbfonseca@gmail.com>
To: user@zookeeper.apache.org
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Thanks Chris.

You are correct - android does not support JMX packages.

The main idea is embed zoo Client and Server in Android devices...Its a
research project involves Mobile Distribuited CEP ! I=C2=B4m afraid too :)
Probably there is not a quick solution !!!! :(

thanks again.

Best Regards,
Jorge.


2016-01-06 15:39 GMT-03:00 Chris Nauroth <cnauroth@hortonworks.com>:

> Hello Jorge,
>
> Can you please clarify if it's the ZooKeeper client side or server side
> that you're interested in?  I assume it's the client side, because an
> ensemble deployed to Android devices would likely be very unreliable, but
> I want to make sure we understand.
>
> I'm not familiar with Android development myself, but a quick Google
> search shows that the entire javax.management package is missing on the
> Dalvik VM.
>
> http://developer.android.com/reference/packages.html
>
>
> That would imply that any reference to javax.management classes from
> within ZooKeeper code would trigger a NoClassDefFoundError.  Is that what
> you're seeing?
>
> If so, then I'm afraid there is likely no quick solution.  As Flavio said=
,
> javax.management is used throughout the ZooKeeper code, and we don't have
> any kind of mode that would completely "skip over" those class references=
.
>  There are various options for controlling JMX on the server side through
> environment variables to enable local access only vs. a remote port, SSL,
> authentication, etc.  (See bin/zkServer.sh.)  However, I have a feeling
> this is not really what you're requesting.
>
> --Chris Nauroth
>
>
>
>
> On 1/6/16, 6:18 AM, "Jorge Fonseca" <jcbfonseca@gmail.com> wrote:
>
> >Flavio,
> >
> >I just studied the zookeeper code, and see that JMX is embedded in the
> >code... However, a hope "appears" when a read "*JMX - how to enable JMX =
in
> >ZooKeeper*" in the zoo docs. I thought: if there is how to enable it,
> >problably there is how to disable :)
> >
> >
> >Jorge.
> >
> >2016-01-06 11:08 GMT-03:00 Jorge Fonseca <jcbfonseca@gmail.com>:
> >
> >> Thanks Flavio !
> >>
> >> For example, If i want to execute a zookeeper app in a limited mobile
> >> environment (like Android) that does not support JMX. Is it possible?
> >>
> >> Jorge.
> >>
> >>
> >> 2016-01-06 10:59 GMT-03:00 Flavio Junqueira <fpj@apache.org>:
> >>
> >>> Hi Jorge,
> >>>
> >>> The short answer is that it is fairly embedded in the code, but I can
> >>> really interpret your question in two ways: you're having some proble=
m
> >>>with
> >>> jmx or you want to use something else to  monitor your zookeeper
> >>>ensemble.
> >>> Perhaps you can give some more detail about the problem you're trying
> >>>to
> >>> solve so that we can help you out here.
> >>>
> >>> -Flavio
> >>>
> >>> > On 06 Jan 2016, at 13:50, Jorge Fonseca <jcbfonseca@gmail.com>
> wrote:
> >>> >
> >>> > Hi All,
> >>> >
> >>> > Have a nice new year :)
> >>> > A simple and direct question.
> >>> >
> >>> > Is it possible to port zookeeper to a platform that does not have J=
MX
> >>> > technology? Or Zookeeper is fully-dependent of this technology?
> >>> >
> >>> >
> >>> > Best regards !
> >>> > Jorge.
> >>>
> >>>
> >>
>
>

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