Semaphore read and write locks

HCL Notes/Domino 8.5 Forum (includes Notes Traveler)

Subject: Semaphore read and write locks

Feedback Type: Problem

Product Area: Domino Server

Technical Area: Error Message

Platform: Windows

Release: 8.5.3

Reproducible: Unknown

We are running 8.5.3 for Windows Server 2004 x64 Edition.
The server hungs many times during the day with semaphore locks. We don't have transaction logging enabled (in some forum it is mentioned that disabling this is probably the solution...not for us...) and we've added SCHEDULE_NO_CALCSTATS=1 to the notes.ini
Below there's a sample from the semdebug.txt...

ti="002FC084-C2257A2F" sq="00000156" THREAD [1090:002F-1140] WAITING FOR WRITE LOCK ON RWSEM 0x3A05 Agent semaphore (@0EE99628) (R=0,W=1,WRITER=1090:0B6C,OWNER=1090:0B6C) FOR 30000 ms
ti="002FC11A-C2257A2F" sq="00000157" THREAD [1090:0016-0E98] WAITING FOR WRITE LOCK ON RWSEM 0x3A05 Agent semaphore (@0EE99628) (R=0,W=1,WRITER=1090:0B6C,OWNER=1090:0B6C) FOR 30000 ms
ti="002FC19D-C2257A2F" sq="00000158" THREAD [1090:0018-0FD8] WAITING FOR WRITE LOCK ON RWSEM 0x3A05 Agent semaphore (@0EE99628) (R=0,W=1,WRITER=1090:0B6C,OWNER=1090:0B6C) FOR 30000 ms
ti="0030703A-C2257A2F" sq="0000018E" THREAD [1090:000F-09E4] WAITING FOR READ LOCK ON FRWSEM 0x030B Collection semaphore (@1CBDF8E0) (R=1,W=0,WRITER=0000:0000,1STREADER=1090:1130) FOR 30000 ms
ti="003070FD-C2257A2F" sq="0000018F" THREAD [1090:000B-0B64] WAITING FOR READ LOCK ON FRWSEM 0x030B Collection semaphore (@1CBDF8E0) (R=1,W=0,WRITER=0000:0000,1STREADER=1090:1130) FOR 30000 ms
ti="00307BF2-C2257A2F" sq="00000195" THREAD [1090:000F-09E4] WAITING FOR READ LOCK ON FRWSEM 0x030B Collection semaphore (@1CBDF8E0) (R=1,W=0,WRITER=0000:0000,1STREADER=1090:1130) FOR 30000 ms
ti="00307C53-C2257A2F" sq="00000196" THREAD [1090:000D-0FB8] WAITING FOR READ LOCK ON FRWSEM 0x030B Collection semaphore (@1CBDF8E0) (R=1,W=0,WRITER=0000:0000,1STREADER=1090:1130) FOR 30000 ms
ti="00307CB5-C2257A2F" sq="00000197" THREAD [1090:000B-0B64] WAITING FOR READ LOCK ON FRWSEM 0x030B Collection semaphore (@1CBDF8E0) (R=1,W=0,WRITER=0000:0000,1STREADER=1090:1130) FOR 30000 ms
ti="003138BA-C2257A2F" sq="000001D0" THREAD [1090:0013-1798] WAITING FOR WRITE LOCK ON RWSEM 0x3A05 Agent semaphore (@0EE99628) (R=0,W=1,WRITER=1090:0F74,OWNER=1090:0F74) FOR 30000 ms
ti="003138D8-C2257A2F" sq="000001D1" THREAD [1090:0014-029C] WAITING FOR WRITE LOCK ON RWSEM 0x3A05 Agent semaphore (@0EE99628) (R=0,W=1,WRITER=1090:0F74,OWNER=1090:0F74) FOR 30000 ms

Does anybody have a solution to fix this??

THA

Feedback number WEBB8VTD4G created by ~Hal Brelusterjip on 07/02/2012

Status: Open
Comments: