[SERVER-40758] Increase the amount of memory available for logical_session_cache_replication* tasks Created: 22/Apr/19  Updated: 29/Oct/23  Resolved: 22/Apr/19

Status: Closed
Project: Core Server
Component/s: Testing Infrastructure
Affects Version/s: None
Fix Version/s: 4.0.10, 4.1.11

Type: Task Priority: Major - P3
Reporter: Max Hirschhorn Assignee: Max Hirschhorn
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Backports
Depends
Backwards Compatibility: Fully Compatible
Backport Requested:
v4.0
Sprint: STM 2019-05-06
Participants:
Linked BF Score: 12
Story Points: 1

 Description   

There have been several instances where the OOM killer has killed a mongod process when running one of logical_session_cache_replication* tasks on Enterprise RHEL 6.2. With the num_jobs_available expansion equal to the number of CPUs, we end up running 4 tests concurrently (each using a 3-node replica set) on the rhel62-small distro which is a c4.xlarge (4 CPU, 7.5GiB memory). We should change to use the rhel62-large distro and limit the maximum number of resmoke.py jobs to 12. The rhel62-large distro is a c4.4xlarge (16 CPU, 30GiB memory), so we'll end up running 12 tests concurrently, but have a larger ratio of available memory to number of concurrent tests.



 Comments   
Comment by Githook User [ 22/Apr/19 ]

Author:

{'name': 'Max Hirschhorn', 'username': 'visemet', 'email': 'max.hirschhorn@mongodb.com'}

Message: SERVER-40758 Increase memory for logical_session_cache_repl* tasks.

The logical_session_cache_repl* tasks now run with --jobs=3 on the
rhel62-small distro as part of the Enterprise RHEL 6.2 build variant.

(cherry picked from commit 689679706bea557a112017d2640002394ee9e75f)
Branch: v4.0
https://github.com/mongodb/mongo/commit/52532c50a46f310cfa77fff3895f6a83dbf53ed5

Comment by Githook User [ 22/Apr/19 ]

Author:

{'name': 'Max Hirschhorn', 'username': 'visemet', 'email': 'max.hirschhorn@mongodb.com'}

Message: SERVER-40758 Increase memory for logical_session_cache_repl* tasks.

The logical_session_cache_repl* tasks now run with --jobs=3 on the
rhel62-small distro as part of the Enterprise RHEL 6.2 build variant.
Branch: master
https://github.com/mongodb/mongo/commit/689679706bea557a112017d2640002394ee9e75f

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