Work processes very busy

[former_member323185]

Hi,

I installed a SAP system in a HA environment consisting of 2 nodes cluster. After the installation, I discovered that all work processes are very busy and the developer trace files dev_w* is growing rapidly. The trace files contain many connection errors:

M Thu Sep 19 16:44:51 2013
M  ***LOG Q0I=> NiPConnect: 172.25.100.183:3210: connect (79: A remote host refused an attempted connect operation.) [nixxi.cpp 2898]
M  *** ERROR => NiPConnect: SiConnect failed for hdl 39/sock 14
    (SI_ECONN_REFUSE/79; I4; ST; 172.25.100.183:3210) [nixxi.cpp    2898]
M  {root-id=523A0656B5894550E1008000AC1964B9}_{conn-id=00000000000000000000000000000000}_0

M  *** ERROR => EncNiConnect: unable to connect (NIECONN_REFUSED) [encomi.c     447

The error shows that the work processes is attempting to connect to the ASCS instance (172.25.100.183) using port 3210. The ASCS system number is 10. Since ASCS provide the message server service, shouldn't port 3610 be used instead? When I test with telnet to 172.25.100.183 via port 3210, I an unable to get a connection.

After the installation, I am unable to logon with sapgui because the work processes are so busy trying to connect to the message server until there is no available work processes to perform the initial compilation for logon.

Help needed. Thanks in advance.

Rdgs,

Lim

[former_member323185 · Accepted solution]

Hi All,

Thanks for the suggestion. The problem is caused by the work processes unable to connect to the enqueue server and not the message server. There is problem starting the enqueue server due to <sid>adm user limits. This is unique to AIX os. I have resolved the os problem and started the enqueue server. The work processes are no longer busy now.

Rdgs,

Lim

[Sriram2009]

Hi Lim

Could you check the Cluster environment DB(SAP DB group) resource showing online?..

Thanks

Sriram

[sunny_pahuja2]

Hello,

It looks like processes are not able to connect to message server. Could you please paste dev_ms, dev_disp and dev_enq server logs here?

Thanks

Sunny