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Type: Improvement
Resolution: Done
Priority: Major - P3
Fix Version/s: 3.5.2
Affects Version/s: None
Component/s: Aggregation Framework
Labels:
None

Backwards Compatibility:
Fully Compatible
Backport Requested:

v3.4
Sprint:
Query 2017-01-23
Linked BF Score:
0
CAR Domain/s:
None

Aha! Reference:
None
Tracking Level:
None
Risk Status:
None
Exec Notes:
None
Goal Name(s):
None
Goal Link:
None

_mongod->isSharded() is called with every DocumentSourceLookUp::getNext() call. This call is expensive as it acquires a lock via AutoGetCollectionForRead.

is related to

SERVER-27616 Fix $lookup/$graphLookup foreign collection sharding check race condition

Backlog

SERVER-24960 Shard may not realize that collection is already sharded after restart

Closed

Assignee:: James Wahlin
Reporter:: James Wahlin
Participants:: Githook User, James Wahlin
Votes:: 0 Vote for this issue
Watchers:: 4 Start watching this issue

Created:: Dec 06 2016 10:30:33 PM UTC
Updated:: Jul 07 2017 02:54:08 PM UTC
Resolved:: Jan 09 2017 09:48:47 PM UTC

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