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Type:
Improvement
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: 3.4.0
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Component/s: Aggregation Framework
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Labels:
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Fully Compatible
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Query 2017-07-10
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0
$collStats has useful information when run on a mongod, but it's less useful when run on a mongos:
shards:
{ "_id" : "shard0000", "host" : "celadon:20000", "state" : 1 }
{ "_id" : "shard0001", "host" : "celadon:20001", "state" : 1 }
databases:
{ "_id" : "test", "primary" : "shard0000", "partitioned" : true }
test.coll
shard key: { "_id" : "hashed" }
unique: false
balancing: true
chunks:
shard0000 2
shard0001 3
mongos> db.coll.aggregate([{$collStats: {}}])
{ "ns" : "test.coll", "localTime" : ISODate("2017-04-26T14:18:29.066Z") }
{ "ns" : "test.coll", "localTime" : ISODate("2017-04-26T14:18:29.074Z") }
It would be useful if the result could also include information that identifies which mongod or which shard is associated with each result (for example, hostname and port).
- is documented by
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DOCS-10449 Docs for SERVER-28978: Add hostname to $collStats output, and include shard name when run on a cluster
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- Closed
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- related to
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- Closed
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