[ 
https://issues.apache.org/jira/browse/SOLR-5756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14618910#comment-14618910
 ] 

Noble Paul commented on SOLR-5756:
----------------------------------

bq.Do you think it would be safe to do this manually on a running cluster?

It is never fully safe , There are intermediate state changes which you may lose

bq. Suppose I wanted to try to write a patch for this issue to help solve it 
for everyone, is that a reasonable thing to attempt for someone with a lot of 
ZK knowledge but pretty new to Solr? 

bq. Is it too "soon" to do that?

It is not too soon. 5.0 is out for a while

A lot of ZK knowledge is not required to do this. You need to know how overseer 
updates state  and how states are updated by 
{{ZkStateReader.createClusterStateWatchersAndUpdate}}  in each node

bq.Can you opine on the specifics of having an API to move the state out vs. a 
forced migration?

I shall do a follow up comment of what are the steps involved in actually doing 
this



> A utility API to move collections from internal to external
> -----------------------------------------------------------
>
>                 Key: SOLR-5756
>                 URL: https://issues.apache.org/jira/browse/SOLR-5756
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Noble Paul
>            Assignee: Noble Paul
>
> SOLR-5473 allows creation of collection with state stored outside of 
> clusterstate.json. We would need an API to  move existing 'internal' 
> collections outside



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org

Reply via email to