Hi,
Its synchronize mode, exist with witness
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sql2005 mirroring issues
Hi,
I have encountered problem with mirroring which caused db connection freezes, when I check from sys.dm_exec_requests it was found below wait_type caused the problem, I killed the process but it just hung without releasing the sessions, now I wonder if Mcsft had any improvement on wait_type DBMIRROR_DBM_EVENT which I found always be the performance culprit
spid kpid blocked waittype waittime lastwaittype
------ ------ ------- -------- -------------------- -------------------
21 5524 0 0x008A 136737968 DBMIRROR_DBM_EVENT
73 1456 21 0x0003 136711859 LCK_M_S
82 8716 0 0x008A 136737968 DBMIRROR_DBM_EVENT
86 8244 82 0x0003 15526625 LCK_M_S
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by: chapmandewPosted on 2009-08-17 at 09:36:27ID: 25116069
what type of mirroring do you have setup? is it synchronous or asynchronous?