server engine status

[ppalka]

Hi,

I want to test the state of my ds server process(engine). Is that enough to check if there is running dsrpcd process?
How to check if that process is not hanged? Execute 'dsjob' command?

[g_rkrish]

Hi,

I want to test the state of my ds server process(engine). Is that enough to check if there is running dsrpcd process?
How to check if that process is not hanged? Execute 'dsjob' command?

do you want check your server or your job.also pls mention your server is it windows or unix.

thanks,
RK

[kcbland]

You can't connect with a DS Client without dsrpcd running.

[ppalka]

do you want check your server or your job.also pls mention your server is it windows or unix.

As you can see in post header it is unix

[g_rkrish]

do you want check your server or your job.also pls mention your server is it windows or unix.

As you can see in post header it is unix

sorry,As kennth mentioned you can't even connect to client if you server is not running.which means you can'do anything or run DSJOB command etc.

[ppalka]

OK, but how check it if I doesn't want to use client?
ps -ef | grep dsrpc ? But this process could be hanged ...

[kcbland]

Start DS Manager and try to connect to the server. If it says the engine might not be running, it's probably not running or you mistyped your userid/password.

ps -ef |grep dsrpcd will not do anything but tell you that the daemon is in the process table. You'll have to try to do something.

In using this tool since 1998 I've never heard of the daemon hanging, so what's the real problem you're having?

[ppalka]

In using this tool since 1998 I've never heard of the daemon hanging, so what's the real problem you're having?

I don't have such problem. I want to make some monitoring tool for datastage environment and I though it could be good idea to figure some other states of ds daemon, not only running and not running.

[kcbland]

I don't know if there's such a way that programmatically convincingly shows the daemon isn't operating properly.

[ray.wurlod]

You could start dsrpcd in a low-verbosity debugging mode, or even simply direct its output to some other file than /dev/null. Even this would not tell you that it's running now, but would tell you how recently it had logged anything. After all, it's a listener - it doesn't do anything unless asked to.

Like the other posters I have never experienced any problems with dsrpcd except failure to start, and this is a problem external to dsrpcd (typically old connections not yet dropped). I think the best advice here is to trust dsrpcd - if it's there, it's OK.

And you are right (on UNIX) - this is the only indication that the server is "up". The server itself runs no processes. Connected clients and executing jobs are their own process group leaders.

The best way to determine whether the server is available (and you can script this) is to look for the disk shared memory segment, which has a key of 0cadecnnnn where nnnn is the version number in hex digits, for example 7511. The "ade" might be different if you're using an itag installation (which lets you change the shared memory key identifier).

Code: Select all

ipcs -m  |  grep adec

If this returns anything (the row from ipcs -m), then DataStage server is "up". If it returns nothing, then DataStage server is "down".

Windows Answer
Whether DataStage is up or down is more easily determined by checking whether the DataStage RESOURCE service is running.
If you'd prefer a similar approach to the above, use %DSHOME%\bin\shrdump instead of ipcs -m, usually the disk shared memory segment has ID 1 and the shared memory key is daecnnnn

[trokosz]

Just do a netstat -a | grep ds and you should see the dsrpcd in a LISTEN state on the port.....or as others said if you can login then it is Listening....or if your DataStage Admin then do a uv -admin -info.....But otherwise nothing per se "hangs"

[ray.wurlod]

Note that it is possible for DataStage to be up even though dsrpcd is not running. Clients and requests will not be able to connect, but jobs started will continue to run and new jobs can be started from already-running job sequences. These do not use the DataStage RPC mechanism. Connection via telnet will still be possible.

[ppalka]

Thanks a lot for all your answers.