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Posted to dev@lucene.apache.org by "Shalin Shekhar Mangar (JIRA)" <ji...@apache.org> on 2018/09/04 08:53:00 UTC
[jira] [Commented] (SOLR-12715) NodeAddedTrigger should support
adding replicas to new nodes
[ https://issues.apache.org/jira/browse/SOLR-12715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16602777#comment-16602777 ]
Shalin Shekhar Mangar commented on SOLR-12715:
----------------------------------------------
Patch:
# Adds {{preferredOperation}} as a property for {{NodeAddedTrigger}}
# The {{ComputePlanAction}} specializes Suggester creation for the trigger if preferredOperation is addreplica. This is to ensure that all the possible (collection,shard) pair combinations are added as hints so that policy engine can select the right one.
# New tests added in ComputePlanActionTest to test auto-adding replicas for multiple collections having single as well as multiple shards on new nodes.
I'll commit after running precommit and tests.
> NodeAddedTrigger should support adding replicas to new nodes
> ------------------------------------------------------------
>
> Key: SOLR-12715
> URL: https://issues.apache.org/jira/browse/SOLR-12715
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling
> Reporter: Shalin Shekhar Mangar
> Priority: Major
> Fix For: master (8.0), 7.5
>
> Attachments: SOLR-12715.patch
>
>
> NodeAddedTrigger only moves replicas from other nodes to the newly added node(s). We should add support for addreplica operations via preferredOperation flag as is done in other triggers like MetricsTrigger and ScheduledTrigger.
> The use-case is to add replica(s) of one or more collections to a new node automatically.
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