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MSAS Thread (6) crash in Session AS-4. Potential leak 20MB.

PeterWokke opened this issue · comments

commented

We run progression test on our PAS. This generates over a thousand Web Service Requests. Takes several hours to finalize.
All requests are getting through with a few exceptions. So now we would like to trace on memory leaks using the iceberg tool.
When I activate the metrics on the PAS each request on the Web Service Requests is crashing on a potential leak.

2022-04-12T10:38:34.509+0200 010664 004528 1 AS-7 CcsLevelServices:w:00001ae4 DEBUG WebservicesHandler - ctor
2022-04-12T10:38:34.512+0200 010664 004528 1 AS-7 CcsLevelServices:w:00001ae4 DEBUG WebservicesHandler.HandleRequest - start
2022-04-12T10:38:37.881+0200 010664 004528 1 AS-7 CcsLevelServices:w:00001ae4 MSAS Thread (7) crash in Session AS-7. Potential leak 19MB.
2022-04-12T10:38:37.881+0200 010664 004528 4 AS-7 CcsLevelServices:w:00001ae4 MSAS sending session info to broker : num_user_sessions= 0
2022-04-12T10:38:37.881+0200 010664 004528 4 AS-7 CcsLevelServices:w:00001ae4 MSAS sending session info to broker : sock= 1132
2022-04-12T10:38:37.881+0200 010664 004528 4 AS-7 CcsLevelServices:w:00001ae4 MSAS sending session info to broker : disown sock= 1132
2022-04-12T10:38:37.881+0200 010664 004528 4 AS-7 CcsLevelServices:w:00001ae4 MSAS sending session info to broker : own sock= 1132
2022-04-12T10:38:37.881+0200 010664 004528 4 AS-7 CcsLevelServices:w:00001ae4 MSAS session info message sent ... status= 0
2022-04-12T10:38:37.881+0200 010664 004528 3 AS-7 CcsLevelServices:w:00001ae4 MSAS csMtSendABLSessionInfo : session info message sent to broker: num_sessions= 0
2022-04-12T10:38:37.881+0200 010664 004528 3 AS-7 CcsLevelServices:w:00001ae4 MSAS Adding 'Close all procedure libraries' work to Resource Mgr Queue.
2022-04-12T10:38:37.882+0200 010664 004528 2 AS-7 CcsLevelServices:w:00001ae4 CONN Disconnecting from database dwh, user number 5. (9545)

Big question here is, Why does it crash on a potential memory leak?

commented

Forgot this part of the logging:

2022-04-12T10:38:37.993+0200 010664 004528 2 AS-7 CcsLevelServices:w:00001ae4 CONN Disconnecting from database assur, user number 10. (9545)
2022-04-12T10:38:37.993+0200 010664 004528 3 AS-7 CcsLevelServices:w:00001ae4 MSAS Adding 'Decrement database' work to Resource Mgr Queue.
2022-04-12T10:38:37.993+0200 010664 004528 3 AS-7 CcsLevelServices:w:00001ae4 MSAS Closing socket, Type: 'Request', Number: 5
2022-04-12T10:38:37.993+0200 010664 004528 4 AS-Aux-0 mtapsv:-:? MSAS csMtPrestartSessions : numSessionsToStart= 0 : maxPoolSize=200 minAvailableSessions=1 numAvailableSessions=0 currSessions=0 numStarting=1
2022-04-12T10:38:37.993+0200 010664 004528 1 AS-Aux-0 mtapsv:-:? MSAS Worker Thread exiting. Number: 7, Status: 10002
2022-04-12T10:38:37.993+0200 010664 004528 3 AS-Aux-0 mtapsv:-:? MSAS Adding 'Dealloc CStack' work to Queue.

commented

Hi Peter, I'm sorry but you have already opened a support case for the issue you have described, and is the correct path for any further escalations. I would encourage you to continue work with our TS team with regards to use of the metrics and its unexpected impact on an MSAS agent which seems specific to your application. If your question/issue were in regards to the collection of the generated data, use of the tooling provided for reporting, or any action leading up to the activation of the metrics that would be considered an issue against the resources in this repository. Unfortunately I cannot take up this request given the still-open TS case, nor would I suggest that this particular issue be handled in this forum.