JCMON does not start

[#1]

I'm using a NW 7.3 JAVA only based EP system. This is a newly setup system with default parameters. I am able to start the portal and login from the main page.

However, I'm unable to start jcmon..

<SID>adm 16>  jcmon pf=/usr/sap/<SID>/SYS/profile/<SID>_J00_<HostName>
JCMon is an internal tool for interactive usage.
Suspending it or running it in the background may have unexpected and undesirable effects. 
        Do you understand these restrictions? (y/n): y 
[Thr 01] MtxInit: -2 0 0 
============================================================
JControl Monitor Program - Main Menu
============================================================
0  : exit
------------------------------------------------------------
10 : Cluster Administration Menu
------------------------------------------------------------
20 : Local Administration Menu
------------------------------------------------------------
30 : Solid Rock Administration Menu
------------------------------------------------------------
command => 20
Can't open shared memory administration (rc = 3)

This gives below error in dev_jcontrol process :

[Thr 01] *** ERROR => Can't compute dynamic shared memory size (rc = 4 object not found) [jcntrxx_mt.c 2134]
[Thr 01] *** ERROR => Can't initialize JControl Administration [jcntrxx_mt.c 294]
[Thr 01] JControlCloseProgram: started (exitcode = -1)
[Thr 01] *** ERROR => SfDestroyDynShm: Dynamic shared memory is not opened. [jsfxxshm_mt. 2369]
[Thr 01] JControlCloseProgram: good bye... (exitcode = -1)

I tried to shut down portal --> run jcmon pf=... -c for cleanup of shared memory --> cleanipc --> start portal again --> run jcmon.. that gives same error

Do I need to expand the shared memory with VA /Cfg tool knowing that portal starts fine ? Is there anything more I can check before working with mem parameters...

Thanks,

[Former Member]

Dear All,

As had same case i have done all the suggestions as above but my issue was still same.

then after i have taken the dump of logs at os level using below command

login with sidadm

sidadm> isql -Usapsa -SSID

/>password

/>dump transaction <SID> to "destination/<dump transaction name>"

/>go

and after that my issue is resolved.

Thanks,

Gopal Tamrkar

[anosh_syed]

Hi Gopal,

Can you please explain me clearly, How you resolved this issue?

Actually i was facing the bellow issue

Can't open shared memory administration (rc = 3)

Later i used "jcontrol pf=SM1_DVEBMGS00_sapnw02 -c" this command.

Now, when i open jcmon its showing bellow error

Can't access instance data (rc = 4 object not found)

Please help me.

Regards,

Anosh.

[Former Member]

Hi Anosh,

I was using sybase database. So I have released the space for transaction logs and archive logs by using the above script. Do the same according your database.

Best Regards,

Gopal Tamrkar