[SERVER-24196] mapReduce command can unpin a ClientCursor out of the collection lock - MongoDB Jira

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Details

Type: Bug
Status: Closed
Priority: Critical - P2
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 3.3.8
Component/s: MapReduce, Querying
Labels:
None

Backwards Compatibility:
Fully Compatible
Operating System:
ALL
Backport Requested:

v3.2
Sprint:
Query 15 (06/03/16)
Linked BF Score:
0

Description

This leads to a race condition in which the mapReduce command can attempt to access the Collection's cursor manager after it has been destroyed. This can lead to the server shutting down with a segmentation fault, though I suspect the probability of such an event occurring is low.

Attachments

Issue Links

is duplicated by

SERVER-23621 mapReduce with output collection writes incorrect 'ns' to profiler

Closed

is related to

SERVER-27362 MapReduce can attempt to deregister a cursor without holding a collection lock

Closed

Activity

People

Assignee:: David Storch

Reporter:: David Storch

Participants:: David Storch, Githook User

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Dates

Created:: May 18 2016 03:48:55 PM UTC

Updated:: Dec 09 2016 09:47:33 PM UTC

Resolved:: May 23 2016 10:34:07 PM UTC