On Mar 22, 2013, at 5:54 PM, Gary Yngve <gary.yn...@gmail.com> wrote:

> Thanks, Mark!
> 
> The core node names in the solr.xml in solr4.2 is great!  Maybe in 4.3 it
> can be supported via API?

It is with the core admin api - do you mean the collections api? Please make a 
JIRA for any feature requests so they don't get lost!

> 
> Also I am glad you mentioned in other post the chance to namespace
> zookeeper by adding a path to the end of the comma-delim zk hosts.  That
> works out really well in our situation for having zk serve multiple amazon
> environments that go up and down independently of each other -- no issues
> w/ shared clusterstate.json or overseers.
> 
> Regarding our original problem, we were able to restart all our shards but
> one, which wasn't getting past
> Mar 20, 2013 5:12:54 PM org.apache.solr.common.cloud.ZkStateReader$2 process
> INFO: A cluster state change has occurred - updating...
> Mar 20, 2013 5:12:54 PM org.apache.zookeeper.ClientCnxn$EventThread
> processEvent
> SEVERE: Error while calling watcher
> java.lang.NullPointerException
>    at
> org.apache.solr.common.cloud.ZkStateReader$2.process(ZkStateReader.java:201)
>    at
> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:526)
>    at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502)
> 
> We ended up upgrading to solr4.2 and rebuilding the whole index from our
> datastore.

Hmm…hopefully this issue has been addressed. Thanks for the stack trace, I'll 
use it to do some inspection.

- Mark

> 
> -Gary
> 
> 
> On Sat, Mar 16, 2013 at 9:51 AM, Mark Miller <markrmil...@gmail.com> wrote:
> 
>> Yeah, I don't know that I've ever tried with 4.0, but I've done this with
>> 4.1 and 4.2.
>> 
>> - Mark
>> 
>> On Mar 16, 2013, at 12:19 PM, Gary Yngve <gary.yn...@gmail.com> wrote:
>> 
>>> Cool, I'll need to try this.  I could have sworn that it didn't work that
>>> way in 4.0, but maybe my test was bunk.
>>> 
>>> -g
>>> 
>>> 
>>> On Fri, Mar 15, 2013 at 9:41 PM, Mark Miller <markrmil...@gmail.com>
>> wrote:
>>>> 
>>>> You can do this - just modify your starting Solr example to have no
>> cores
>>>> in solr.xml. You won't be able to make use of the admin UI until you
>> create
>>>> at least one core, but the core and collection apis will both work fine.
>> 
>> 

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