Central Services: Enque Server cannot be started

[Former Member]

Hi All,

I'm installing SAP ERP EPH5 in HA environment.

The Central Service ASCS installed successfully, however, the enque server cannot be started correctly. (message server can be started)

Here is the output of dev_eqnsrv

---------------------------------------------------
trc file: "dev_enqsrv", trc level: 1, release: "720"
---------------------------------------------------
sysno      00
sid        PRD
systemid   324 (IBM RS/6000 with AIX)
relno      7200
patchlevel 0
patchno    110
intno      20020600
make       multithreaded, Unicode, 64 bit, optimized
pid        16056526


[Thr 01] Wed Feb 15 12:33:00 2012
[Thr 01] profile    /usr/sap/PRD/SYS/profile/PRD_ASCS00_PRDAP
[Thr 01] hostname   P720N1
[Thr 01] Listen successful on port/service sapdp00

[Thr 01] Wed Feb 15 12:33:01 2012
[Thr 01] EnqInitCleanupServer: Shm of enqueue table (rc = 3) does not exist, nothing to clean up
[Thr 01] *** ERROR => EnsMemObj::Initialize (else): allocation of 163920080 Bytes failed for the ft table, please c
heck parameters enque/max_query_requests and enque/server/query_block_size.
Please see SAP note 834589 for parameter configuration suggestions [ensutil.cpp  503]
[Thr 01] *** ERROR => main: Server initialisation failed!
  Errortext:"EnsMemObj: internal error detected at ensutil.cpp:509 Errorinfo: "EnsMemObj::Initialize"" [enservmain.
c 248]

Here is the ASCS profile

SAPSYSTEMNAME = PRD
SAPSYSTEM = 00
INSTANCE_NAME = ASCS00
DIR_CT_RUN = $(DIR_EXE_ROOT)/run
DIR_EXECUTABLE = $(DIR_INSTANCE)/exe
SAPLOCALHOST = PRDAP
#-----------------------------------------------------------------------
# SAP Message Server parameters are set in the DEFAULT.PFL
#-----------------------------------------------------------------------
ms/standalone = 1
ms/server_port_0 = PROT=HTTP,PORT=81$$
#-----------------------------------------------------------------------
# SAP Enqueue Server
#-----------------------------------------------------------------------
enque/table_size = 64000
enque/snapshot_pck_ids = 1600
enque/server/max_query_requests = 5000
enque/server/max_requests = 5000
enque/async_req_max = 5000
enque/encni/threadcount = 4
rdisp/enqname = $(rdisp/myname)
ssl/ssl_lib = $(DIR_EXECUTABLE)$(DIR_SEP)$(FT_DLL_PREFIX)sapcrypto$(FT_DLL)
sec/libsapsecu = $(ssl/ssl_lib)
ssf/ssfapi_lib = $(ssl/ssl_lib)
enque/server/replication = true
ipc/shm_psize_10 =236000000

I have tried to increase the max_requests but the server still cannot be started.

Please advise what should i do to make the enque server start again.

Thanks,

Halu

[Former Member]

Hello,

We are facing same issue,  can you please let me know how did the above issue got fixed ?

Thanks,

Kunal Salunkhe

[andrea_meneghini]

I had the same issue and  was solved checking/correcting the ulimit for the sidadm user

Regards

Andrea

[Former Member]

Thanks Ramesh Rajamohan and Andrea Meneghini...

We've fixed similar issue after copying the latest kernel to SCS**/exe directory and updating ulimits for sidadm.. Thanks once again.

[former_member198533]

Changing the ULIMIT of <SID>adm has fixed the issue for me.

[Former Member]

Hi,

Please adopt the parameters based on OSS notes 920979. I had same issue which got resolved with these note

Regards

Purna

[Former Member]

Also please refer to 1029237,1043968

Regards

Purna

[Former Member]

Hi Purna,

Thanks for the note information.

I have tried to change the parameter as follow

from

enque/table_size = 64000
enque/server/max_query_requests = 5000
enque/server/max_requests = 5000

to

enque/table_size = 500000
enque/server/max_query_requests = 5000
enque/server/max_requests = 17500

But with the similar output as before:

---------------------------------------------------
trc file: "dev_enqsrv", trc level: 1, release: "720"
---------------------------------------------------
sysno      00
sid        PRD
systemid   324 (IBM RS/6000 with AIX)
relno      7200
patchlevel 0
patchno    110
intno      20020600
make       multithreaded, Unicode, 64 bit, optimized
pid        11469002

[Thr 01] Wed Feb 15 13:25:19 2012
[Thr 01] profile    /usr/sap/PRD/SYS/profile/PRD_ASCS00_PRDAP
[Thr 01] hostname   P720N1
[Thr 01] Listen successful on port/service sapdp00

[Thr 01] Wed Feb 15 13:25:20 2012
[Thr 01] EnqInitCleanupServer: Shm of enqueue table (rc = 3) does not exist, nothing to clean up
[Thr 01] *** ERROR => EnsMemObj::Initialize (else): allocation of 573720080 Bytes failed for the ft table, please c
heck parameters enque/max_query_requests and enque/server/query_block_size.
Please see SAP note 834589 for parameter configuration suggestions [ensutil.cpp  503]
[Thr 01] *** ERROR => main: Server initialisation failed!
  Errortext:"EnsMemObj: internal error detected at ensutil.cpp:509 Errorinfo: "EnsMemObj::Initialize"" [enservmain.
c 248]

In my case, the enque server cannot be started, there is no process listenon port sapdp00 (3200)

Cheers,

Halu

[Former Member]

Hi,

Please try below parameters.

enque/table_size = 300000

enque/snapshot_pck_ids = 1600

enque/server/max_query_requests = 1000

enque/server/max_requests = 8800

enque/async_req_max = 5000

enque/encni/threadcount = 4

enque/server/req_block_count = 2000

enque/enq-queue/size = 5000

enque/server/query_block_count = 2000

enque/server/query_block_size = 20000

Regards

Purna

[Former Member]

Hi,

Thanks for the paremeter, however, another error message was occurred:

---------------------------------------------------
trc file: "dev_enqsrv", trc level: 1, release: "720"
---------------------------------------------------
sysno      00
sid        PRD
systemid   324 (IBM RS/6000 with AIX)
relno      7200
patchlevel 0
patchno    110
intno      20020600
make       multithreaded, Unicode, 64 bit, optimized
pid        12779610


[Thr 01] Wed Feb 15 13:52:26 2012
[Thr 01] profile    /usr/sap/PRD/SYS/profile/PRD_ASCS00_PRDAP
[Thr 01] hostname   P720N1
[Thr 01] Listen successful on port/service sapdp00

[Thr 01] Wed Feb 15 13:52:27 2012
[Thr 01] EnqInitCleanupServer: Shm of enqueue table (rc = 3) does not exist, nothing to clean up
[Thr 01] ShadowTable:attach: ShmCreate - pool doesn't exist
[Thr 01] initialize_global: Enqueue server started with replication functionality
[Thr 01] Enqueue: EnqMemStartupAction Utc=1329285147
[Thr 01] EnqLockTableCreate: create lock table (size = 307200000)
[Thr 01] EnqLockTableMapToLocalContext: enque/use_pfclock2 = FALSE
[Thr 01] *** ERROR => InitEntryMarkedForDel: malloc(1070140) failed [enxxmini.h   222]
[Thr 01] ***LOG GEA=>  [enxxmini.h   223]
[Thr 01] ***LOG GZZ=> InitEntryMarkedForDel: malloc(1070140) failed [enxxmini.h   224]
[Thr 01] ***LOG GZZ=> ENSA: PID = 12779610 [enservglob.c 808]
[Thr 01] *** ERROR => initialize_global: failed to initialize the enqueue table: rc=8
 [enservglob.c 811]
[Thr 01] *** ERROR => main: Server initialisation failed!
  Errortext:"error at server initialisation detected at enservglob.cpp:812 Errorinfo: "initialize_global: failed to
 initialize the enqueue table: rc=8
"" [enservmain.c 248]

The enqueue table cannot be initialized.

Seems memory cannot be allocated.

Cheers,

Halu

[Former Member]

Below URL has more details HA enqueue setup

http://help.sap.com/saphelp_nw04s/helpdata/en/e3/d49d775bf44a8fb37d77478d218b9a/content.htm

Regards

Purna

[Former Member]

Hi,

This looks like shared memory issue. Can you try to run "cleanipc <XX> remove" and then start the system.

<XX> is instance number.

Regards,

Vijaya

[Former Member]

Hi,

I think you have issues with kernel mismatch between EnQ server instance and CI. This can happen in a clustered environments. After the upgrade, we have to manually copy the kernel files to enq instances.

Please check the kernels in ASCS instance.

Also refer to note 1463227.

Regards,

Ramesh

www.rajamohan.com

[Former Member]

Hi ,

Please check the following :-

1) Kernel on both ASCS Lpar and ERS Lpar should be same.

2) Restart the ERS after cleaning all the processes running with <sid>adm.

Thanks

Gaurav