[
https://issues.apache.org/jira/browse/SOLR-11990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16440633#comment-16440633
]
Shalin Shekhar Mangar commented on SOLR-11990:
----------------------------------------------
New patch removes broken support for multi-shard `withCollection`. It is not
possible to support such a feature today because of ambiguity about how to
co-locate multi-shard collections together. We can tackle that in a later
issue. The goal behind this issue is to be support joining collections which
usually means co-locating a multi-shard `collection` with a single-shard
`withCollection`
> Make it possible to co-locate replicas of multiple collections together in a
> node using policy
> ----------------------------------------------------------------------------------------------
>
> Key: SOLR-11990
> URL: https://issues.apache.org/jira/browse/SOLR-11990
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling, SolrCloud
> Reporter: Shalin Shekhar Mangar
> Assignee: Shalin Shekhar Mangar
> Priority: Major
> Fix For: 7.4, master (8.0)
>
> Attachments: SOLR-11990.patch, SOLR-11990.patch
>
>
> It is necessary to co-locate replicas of different collection together in a
> node when cross-collection joins are performed. The policy rules framework
> should support this use-case.
> Example: Co-locate exactly 1 replica of collection A in each node where a
> replica of collection B is present.
> {code}
> {"replica":1, "collection":"A", "shard":"#EACH", "withCollection":"B"}
> {code}
> This requires changing create collection, create shard and add replica APIs
> as well because we want a replica of collection A to be created first before
> a replica of collection B is created so that join queries etc are always
> possible.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
