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- sh.splitFind()
sh.splitFind()¶
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Definition¶
-
sh.
splitFind
(namespace, query)¶ Splits the chunk that contains the shard key value specified by the
query
at the chunk’s median point.sh.splitFind()
creates two roughly equal chunks. To split a chunk at a specific point instead, seesh.splitAt()
.Important
mongo
Shell MethodThis page documents a
mongo
method. This is not the documentation for database commands or language-specific drivers, such as Node.js. To use the database command, see thesplit
command.For MongoDB API drivers, refer to the language-specific MongoDB driver documentation.
The method takes the following arguments:
Parameter Type Description namespace
string The namespace (i.e. <database>.<collection>
) of the sharded collection that contains the chunk to split.query
document A query document that specifies the shard key value that determines the chunk to split. The
sh.splitFind()
method wraps thesplit
command.
Consideration¶
In most circumstances, you should leave chunk splitting to the automated processes within MongoDB.
To use sh.splitFind()
, the sharded collection must be
populated.
Example¶
For the sharded collection test.foo
, the following example splits,
at the median point, a chunk that contains the shard key value x:
70
.