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https://issues.apache.org/jira/browse/SOLR-3755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13564188#comment-13564188
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Shalin Shekhar Mangar commented on SOLR-3755:
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I'm planning to split the "split" API into a high-level collections API and a
low-level core admin API.
The low level core admin API may not be solr cloud aware but would work
completely on a single node. This way, a non solr cloud aware node can also
make use of a split index feature.
The Core Admin command may be invoked as:
{code}http://host:port/solr/admin/cores?core=<core_name>&action=SPLIT&path=/path/1&path=/path/2&path=/path/3{code}
or, as:
{code}http://host:port/solr/admin/cores?core=<core_name>&action=SPLIT&targetCore=core1&targetCore=core2{code}
The "path" and "targetCore" parameter is multi-valued and the collection will
be split into as many number of sub-shards as the number of "path" values.
The collections api may be invoked as follows:
{code}http://host:port/solr/admin/collections?action=SPLIT&shard=<shard_1>&shard=<shard_2>{code}
Sometimes, shard names are automatically assigned by SolrCloud and it may be
more convenient for users to specify shards by shard keys instead of shard
names e.g.
{code}http://host:port/solr/admin/collections?action=SPLIT&shard.keys=shardKey1,shardKey2{code}
> shard splitting
> ---------------
>
> Key: SOLR-3755
> URL: https://issues.apache.org/jira/browse/SOLR-3755
> Project: Solr
> Issue Type: New Feature
> Components: SolrCloud
> Reporter: Yonik Seeley
> Attachments: SOLR-3755.patch, SOLR-3755.patch
>
>
> We can currently easily add replicas to handle increases in query volume, but
> we should also add a way to add additional shards dynamically by splitting
> existing shards.
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