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From Jordan Zimmerman <>
Subject Re: Automatic Restart Zookeeper node
Date Wed, 05 Nov 2014 17:49:06 GMT
Yes, that’s true. Someone needs to watch the watcher ;) At Netflix we ran Exhibitor in Tomcat
and had company wide tools that would watch our Tomcat processes.

On November 5, 2014 at 12:47:52 PM, Check Peck ( wrote:

Hi Jordan,

I have one more question on this. As you told me, if zookeeper went down, then exhibitor will
start it but suppose if exhibitor went down, then it won't get started up right?

So for this case, we need to write a crontab which keeps on checking the state of exhibitor
and restart it if it is down?

On Wed, Oct 1, 2014 at 2:18 PM, Jordan Zimmerman <> wrote:

On October 1, 2014 at 4:17:00 PM, Check Peck ( wrote:

Thanks Jordan. One last question, as of now it is showing OFF next to Automatic Instance Restarts
button so if I turn it ON on the Exhibitor while zookeeper is running and taking traffic,
then it will be fine? Right?

On Wed, Oct 1, 2014 at 2:11 PM, Jordan Zimmerman <> wrote:
Yes, Exhibitor can be used as a co-process to restart down instances. It can also completely
manage your ensemble if you like.


On October 1, 2014 at 3:34:10 PM, Check Peck ( wrote:

Checking again to see whether anyone know the answer?

On Wed, Sep 24, 2014 at 8:56 AM, Check Peck <> wrote:
We have a three node zookeeper cluster and we are also using Exhibitor on top of each  zookeeper

Suppose if any of the zookeeper node goes down or having any errors or issues then is there
any way that it can be restarted?

I noticed on Exhibitor UI of my zookeeper nodes there is a button for Automatic Instance Restarts

Does anyone know what does it do? Right now it is in off state.

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