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From Stack <st...@duboce.net>
Subject Re: GSoC 2010: ZooKeeper Monitoring Recipes and Web-based Administrative Interface
Date Thu, 13 May 2010 16:44:18 GMT
On Thu, May 13, 2010 at 2:30 AM, Andrei Savu <savu.andrei@gmail.com> wrote:
> Hi all,
> My name is Andrei Savu and I am on of the GSoC2010 accepted students.
> My mentor is Patrick Hunt.

Good to meet you Andrei.

> Are there any HBase  / Hadoop  specific ZooKeeper monitoring requirements?

In the hbase shell, you can poke at your zk ensemble currently.  Here
is what it looks like:

hbase(main):001:0> zk
ZooKeeper -server host:port cmd args
        connect host:port
        get path [watch]
        ls path [watch]
        set path data [version]
        delquota [-n|-b] path
        printwatches on|off
        create [-s] [-e] path data acl
        stat path [watch]
        ls2 path [watch]
        listquota path
        setAcl path acl
        getAcl path
        sync path
        redo cmdno
        addauth scheme auth
        delete path [version]
        setquota -n|-b val path

Thats pretty great.

What'd be sweeter would be addition of a zktop command.  I know its a
python script at mo.  Maybe there is a pure java implementation?

Also in our UI, you can browse to a page of basic ensemble stats.
Would be excellent if instead that were the fancy-pants zktop output.
Or, if you are doing a zk UI anyways, just make sure it packaged in a
way that makes it easy for us to launch as part of our UI?  I'd image
if it packged as a WAR file that should be fine but we'd need some way
of passing in where the zk ensemble is, perhaps as arguments on the

Thanks for writing the list Andrei,

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