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From: Boogie Shafer <boogie@ebrary.com>
To: "solr-user@lucene.apache.org" <solr-user@lucene.apache.org>
Subject: RE: external zookeeper with SolrCloud
Thread-Topic: external zookeeper with SolrCloud
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Date: Fri, 16 Aug 2013 21:02:12 +0000
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good stuff=0A=
=0A=
here is a more recent version of the same resource as they have added a few=
 new commands in the recent releases of zookeeper=0A=
=0A=
http://zookeeper.apache.org/doc/r3.4.5/zookeeperAdmin.html#sc_zkCommands=0A=
=0A=
=0A=
________________________________________=0A=
From: Walter Underwood <wunder@wunderwood.org>=0A=
Sent: Friday, August 16, 2013 12:48=0A=
To: solr-user@lucene.apache.org=0A=
Subject: Re: external zookeeper with SolrCloud=0A=
=0A=
You might be able to get info from the Zookeeper "four letter words".=0A=
=0A=
http://zookeeper.apache.org/doc/r3.1.2/zookeeperAdmin.html#sc_zkCommands=0A=
=0A=
Here is a command to get the status for one of our Zookeeper hosts:=0A=
=0A=
$ echo stat | nc zk-web02.test3.cloud.cheggnet.com 2181=0A=
=0A=
wunder=0A=
=0A=
On Aug 16, 2013, at 12:01 PM, Shawn Heisey wrote:=0A=
=0A=
> On 8/16/2013 11:58 AM, Joshi, Shital wrote:=0A=
>> Is there a way to find if We have a zookeeper quorum? We can ping indivi=
dual zookeeper and see if it is running, but it would be nice to ping/query=
 one URL and check if we have a quorum.=0A=
>=0A=
> This is a really good question, to which I do not have an answer.  If you=
r client code is Java, you could probably get this information out of Cloud=
SolrServer, with something like this:=0A=
>=0A=
> server.getZkStateReader().getZkClient().getSolrZooKeeper().getState();=0A=
>=0A=
> If the state is CONNECTED everything's probably fine.=0A=
>=0A=
> If anyone who's dealt with Zookeeper happens to know whether this would w=
ork, I'd appreciate knowing.  For Solr, it is probably a good idea to expos=
e something via an admin handler with the current zookeeper quorum state.=
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>=0A=
> Thanks,=0A=
> Shawn=0A=
>=0A=