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From Scott Stults <>
Subject Re: So Many Zookeeper Warnings--There Must Be a Problem
Date Thu, 03 Jan 2019 20:19:35 GMT
Hi Joe,

Yeah, two leaders is definitely a problem. I'd fix that before wading
through the error logs.

Check out zoo.cfg on each server. You should have three lines at the end
similar to this:


(substitute "host*" with the right IP or address of your servers)

Also on each server, check the file "myid". It should have a single number
that maps to the list above. For example, on host1 your myid file should
contain a single value of "1" in it. On host2 the file should contain "2".

You'll probably have to delete the contents of the zk data directory and
rebuild your collections.

On Thu, Jan 3, 2019 at 2:47 PM Joe Lerner <> wrote:

> Hi,
> We have a simple architecture: 2 SOLR Cloud servers (on servers #1 and #2),
> and 3 zookeeper instances (on servers #1, #2, and #3). Things work fine
> (although we had a couple of brief unexplained outages), but:
> One worrisome thing is that when I status zookeeper on #1 and #2, I get
> Mode=Leader on both--#3 shows follower. This seems to be a pretty permanent
> condition, at least right now as I look at it. And there isn't any big
> maintenance or anything going on.
> Also, we are getting *TONS* of continuous log warnings from our client
> applications. From one server it shows this:
> And from another server we get this:
> These are making our logs impossible to read, but worse, I assume indicate
> that something is wrong.
> Thanks for any help!
> Joe Lerner
> --
> Sent from:

Scott Stults | Founder & Solutions Architect | OpenSource Connections, LLC
| 434.409.2780

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