sh._lastMigration()¶

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Definition
Output

Definition¶

sh._lastMigration(namespace)¶

Returns information on the last migration performed on the specified database or collection.

The sh._lastMigration() method has the following parameter:

Parameter	Type	Description
`namespace`	string	The namespace of a database or collection within the current database.

Output¶

The sh._lastMigration() method returns a document with details about the last migration performed on the database or collection. The document contains the following output:

sh._lastMigration._id¶: The id of the migration task.

sh._lastMigration.server¶: The name of the server.

sh._lastMigration.clientAddr¶: The IP address and port number of the server.

sh._lastMigration.time¶: The time of the last migration, formatted as ISODate.

sh._lastMigration.what¶: The specific type of migration.

sh._lastMigration.ns¶: The complete namespace of the collection affected by the migration.

sh._lastMigration.details¶: A document containing details about the migrated chunk. The document includes min and max embedded documents with the bounds of the migrated chunk.

← sh._checkMongos() sh.addShard() →

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