SAP LSENAF01锁操作慢的分析思路

Hi Musa,

SM66:

workprocess Running ENQ SAPLSENA

which means that the workprocess has sent enqueue request to ENQ server, but there is no response from ENQ server yet.

I suppose that you are using ASCS standalone enqueue server.

the possible causes are:

1, ENQ server problem

=> if so, you should find some errors from dev_enq* trace file

2, network issues which block communication between DI and ENQ server

=> you can ask you network admin to troubleshooting it when issue is happening again

3, are you enable ERS server ? it could be synchronize problem between ENQ server and ERS server

=> you can just try to disable ERS server and check again

Since this issue happens once in every month, does this issue occur on the same period every time ?

what did you perform during that period every month ?

Probably the special actions which performed every month cause this issue(see possible reasons above).

Thanks and best regards,

Shi

enque/table_size = 500000

enque/snapshot_pck_ids = 1600

enque/server/max_query_requests = 15000

enque/server/max_requests = 5000

enque/server/max_clients = 1500

enque/async_req_max = 5000

enque/server/threadcount = 4

install/codepage/appl_server = 8400

rdisp/enqname = $(rdisp/myname)

enque/server/replication = true

ipc/shm_psize_40 = 484000000