nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Q around Impersonating Admin in OScript and releasing the prgCtx

Sapna_Shah_(sapna.shah_-_(deleted))

Hi,In my code, I am impersonating Admin to do certain transactions and then releasing it..I remember that some folks suggested to delete the prgCtx that I created for Admin and then set to undefined.So say I impersonated Admin and set tmpPrgCtxDynamic tmpPrgCtx = .ImpersonateAdmin()then after whatever I want to do, I release it.If IsDefined( tmpPrgCtx ) if tmpPrgCtx != prgCtx tmpPrgCtx.Delete() end tmpPrgCtx = undefined endDoes anybody know of any negative impact, if I don't delete tmpPrgCtx, but just set it to undefined? If I don't delete, for how long the LL keeps this sessions. or is that when script is executed, it will automatically delete this temporary session handle.The reason I am asking is, in a wf I have a user step that is email enabled.. On completion of step, I have an event script that runs to do certain tasks. Here in the eventscript I impersoante Admin to do the tasks..Now it so happens that eLink for some reasons doesn't like the my line of code tmpPrgCtx.Delete().. It doesn't delete the email file from temp folder and process the step again if though the step is completed. And hence throws an error email back to user which is not actually an error.Any help around my first problem, or why eLink behaves like this will be greatly appreciated.thankssapna

Find more posts tagged with

Comments

Appu_Nair

Right after we all posted it the venerable Hans Stoop commentedhttps://knowledge.opentext.com/knowledge/llisapi.dll?func=ll&objId=16453143&objAction=view&show=2Could it be that the elink problems happen because of that.I think of it like that your event script is having the step user's context,you are impersonating,but unless you are re-seeking the node as Hans says you are doing DAPINODE operations with the original context itself...If I am not mistaken elink is an agent driven action so it runs on its own thread and not your RH thread so how could they be related?What I have observed is in a RH if you do not delete and undefine it the user's browser will get "login refcnt mismatch"

Kyle_Swidrovich

Message from Kyle Swidrovich <kswidrov@opentext.com> via eLink

eLink

Hi Sapna,

I’ll comment on the general PrgCtxbit…

A PrgCtx object will be kept in the sessioncache until it is bumped out by newly-created sessions.

By default in Content Server 9.7.1, thiscache is 100 sessions, but can be tweaked by setting MaxOpenSessions in the [options]section of the opentext.ini file.

If you do not delete a PrgCtx, it (and allits child temp objects like DSession, USession and WSession) will remain inmemory if anything else still references it.

Items such as DAPINODEs have an internalreference to a DapiCtx which in turn are tied to the DSession of a PrgCtx.

If a PrgCtx is not deleted andinvalidated, the DAPINODEs will be tied to a silent user session.

This is another reason why DAPINODEs themselvesshould never be cached – only their respective DataIDs with which theDAPINODE could be retrieved on a future request.

Regards,

_________________________________________

Kyle Swidrovich

Principal Search / SDK Product Specialist
Livelink Escalations Support Team
Open Text Corporation

275 Frank Tompa Dr.
Waterloo, ON, CANADA

Phone : +1-800-540-7292
Online: http://support.opentext.com
_________________________________________

From: eLink Discussion: Development Discussion[mailto:development@elinkkc.opentext.com]
Sent: Monday, November 02, 20091:48 PM
To: eLink Recipient
Subject: Q around ImpersonatingAdmin in OScript and releasing the prgCtx

Q around Impersonating Admin in OScript and releasing the prgCtx

Posted by sapna.shah (Shah, Sapna) on 2009/11/02 13:35

Hi,

In my code, I am impersonating Admin to do certain transactions and then releasing it..

I remember that some folks suggested to delete the prgCtx that I created for Admin and then set to undefined.

So say I impersonated Admin and set tmpPrgCtx

Dynamic tmpPrgCtx = .ImpersonateAdmin()

then after whatever I want to do, I release it.

If IsDefined( tmpPrgCtx )
if tmpPrgCtx != prgCtx
tmpPrgCtx.Delete()
end
tmpPrgCtx = undefined
end

Does anybody know of any negative impact, if I don't delete tmpPrgCtx, but just set it to undefined? If I don't delete, for how long the LL keeps this sessions. or is that when script is executed, it will automatically delete this temporary session handle.

The reason I am asking is, in a wf I have a user step that is email enabled.. On completion of step, I have an event script that runs to do certain tasks. Here in the eventscript I impersoante Admin to do the tasks..
Now it so happens that eLink for some reasons doesn't like the my line of code tmpPrgCtx.Delete().. It doesn't delete the email file from temp folder and process the step again if though the step is completed. And hence throws an error email back to user which is not actually an error.

Any help around my first problem, or why eLink behaves like this will be greatly appreciated.

thanks
sapna
@ @

Sapna_Shah_(sapna.shah_-_(deleted))

Hi Kyle,Trying to understand the info you provided..So if I understand correctly, upto 100 sessions and all objects referenced by it will remain in memory/session cache until say 101st session is created.. Once 101 session is created, it will remove the very first session that is nto being used.. Correct? Once session is removed from memory all its referenced objects will also be removed, correct?So in my code if I don't delete the session but set to undefined, will all the objects that referenced it still exist? Or its of no value to set it to undefined without deleting it?sapna

Sapna_Shah_(sapna.shah_-_(deleted))

Hi Appu,Yes I am referencing all operations using new context.. When an action email user step is submitted via email, elink agent process the wf step and completes it.. At step done of this step, I have event script to update DB table, initiate a new wf, delete some files.. All this is done using new context (Admin's prgCtx).. and all objects also seeked using new context.. All that is good. but when I try to delete this new context after my work is done, elink stalls somewhere.. There is no user action from Livelink interface in this case.. User works on the step via email, so will never get "login refcnt mismatch" in browser..But I just want to be clear of nay other negative impact.sapna

Kyle_Swidrovich

Message from Kyle Swidrovich <kswidrov@opentext.com> via eLink

eLink

Hi Sapna,

When the 101^st session iscreated, the 1^st session in the list has a .Delete() called againstit and is removed from the list.

If you check out LLIAPI : (LLIAPI Root) :APIObjects : PrgSession.Delete(), you will see what a Delete does (i.e., callingDeletePSession to delete its child objects).

If you just set the value to undefined inyour code, that object (and its children) will stay remain in memory since thePrgSession cache still points to it.

If your only reference to the PrgCtx iscreated and held in a local variable to the script, leaving the script willalready destroy that reference to the PrgCtx, so setting it to undefined willdo nothing in that case.

However, if you cache it or persist itsomewhere (like a global or temp object) and don’t clean up the global ortemp object, those references will live from request to request.

In those cases, not only should you.Delete() the PrgCtx, but you should also clean up the global or temp object sothey don’t point to a non-existent object.

From: eLink Discussion: Development Discussion[mailto:development@elinkkc.opentext.com]
Sent: Monday, November 02, 20093:26 PM
To: eLink Recipient
Subject: Q around ImpersonatingAdmin in OScript and releasing the prgCtx

Q around Impersonating Admin in OScript and releasing the prgCtx		Posted by sapna.shah (Shah, Sapna) on 2009/11/02 15:22
In reply to: RE Q around Impersonating Admin in OScript and releasing the prgCtx		Posted by kswidrov (Swidrovich, Kyle) on 2009/11/02 14:48

Hi Kyle,

Trying to understand the info you provided..

So if I understand correctly, upto 100 sessions and all objects referenced by it will remain in memory/session cache until say 101st session is created.. Once 101 session is created, it will remove the very first session that is nto being used.. Correct?
Once session is removed from memory all its referenced objects will also be removed, correct?

So in my code if I don't delete the session but set to undefined, will all the objects that referenced it still exist? Or its of no value to set it to undefined without deleting it?

sapna

Appu_Nair

If I were you I would let the email / elink step complete and have all the OT code execute so your code cannot be blamed.Then to get your part done I would add one auto step such as a robot step ,I assume that you want to execute your code after the email step is finished and out of the way. If there are other email enable steps after your and they all complain then my understanding is wrong you may just need to delete it .See if you can test it.

Sapna_Shah_(sapna.shah_-_(deleted))

Thanks a lot Kyle for the additional info. That was very helpful.In my script (MyScriptA), I call another script (ImpersonateAdmin), to create and hold Admin session in a local variable. I pass this session handle to another local variable in the calling script ( tmpPrgCtx )Dynamic tmpPrgCtx = .ImpersonateAdmin()So its all stored in local variable. And in this case as per your explanation, it will be already destroyed when script is done executing.. So I think I am good in this case.Thanks again for you help.sapna

Sapna_Shah_(sapna.shah_-_(deleted))

Thanks Appu.. Thats a good suggestion.. Thanks again for your help and all the useful informationsapna