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From "Mark Miller (JIRA)" <>
Subject [jira] [Commented] (SOLR-8416) Solr collection creation API should return after all cores are alive
Date Wed, 16 Dec 2015 18:11:46 GMT


Mark Miller commented on SOLR-8416:

bq. 1. The patch pulls shard status from zk and returns if they are all active during preset
time or throw exception. An alternative is to wait for zk notifications but I am not sure
how much is the gain.

I agree, the complication is probably not worth it.

bq. Is it good to be a solr config or collection config?

I would make it a solr config - we need that ease of use at least. Later, if someone wants
to override per collection or something, we can look at adding that in a way that you can

> Solr collection creation API should return after all cores are alive 
> ---------------------------------------------------------------------
>                 Key: SOLR-8416
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>            Reporter: Michael Sun
>         Attachments: SOLR-8416.patch
> Currently the collection creation API returns once all cores are created. In large cluster
the cores may not be alive for some period of time after cores are created. For any thing
requested during that period, Solr appears unstable and can return failure. Therefore it's
better  the collection creation API waits for all cores to become alive and returns after

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