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- sh.addShardTag()
sh.addShardTag()¶
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Definition¶
- sh.addShardTag(shard, tag)¶
New in version 2.2.
Associates a shard with a tag or identifier. MongoDB uses these identifiers to direct chunks that fall within a tagged range to specific shards. sh.addTagRange() associates chunk ranges with tag ranges.
Parameter Type Description shard string The name of the shard to which to give a specific tag. tag string The name of the tag to add to the shard. Only issue sh.addShardTag() when connected to a mongos instance.
Example¶
The following example adds three tags, NYC, LAX, and NRT, to three shards:
sh.addShardTag("shard0000", "NYC")
sh.addShardTag("shard0001", "LAX")
sh.addShardTag("shard0002", "NRT")
See also
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