Problems with vServer Xtra 4MD

[Ruslan Zasukhin]

On 4/30/04 11:49 AM, "Florian Bogeschdorfer" <fb at memedia.de> wrote:

Hi Florian,

Exists good Russian verb:
    It is better once to see than 100 times to hear.

Can you send us something that reproduce problem?


> Hi Ruslan!
> 
> It took me days to figure this out:
> 
> I use the vServer Xtra to find out if a database does already exists. If
> not, I close the session again and all is fine. If it does though, I run a
> sub to create all tables and fields.
> 
> After that I shutdown and restart the projector. I have always received a
> weird script error which came up apparently after the "halt" command which I
> use to end the running projector. I don't get any details with the script
> error and since we speak about very few installations, I kind of accepted
> the error, since it did not harm the installation and work progress.
> 
> Now I made an update of my application and in authoring all was fine (the
> error is in the projector only). Unfortunately in runtime I got the error
> again but this time not after the "halt" command but right after an alert
> command in the middle of my scripts. Now in short without all details: after
> really days of testing and a good hint on another list, I found out that it
> had to be a callback from an xtra or similar and I started investigating
> what I had changed and apparently I had enlarged the create table and fields
> stuff a great deal.
> 
> So I investigated into the vServer Xtra and changed the timeout from 500 to
> 2000 and suddenly the error changed back to the halt command.
> 
> What I now think is:
> 
> If I use the vServer Xtra and do a lot of creating tables and fields with
> the client Xtra, the vServer Xtra somehow runs into a timeout and calls back
> Director, causing this error. Obviously the alert or halt command catches
> this error then (enough time for the "callback") and produces an error
> immediately after (we all know that "alert" stops the whole Director).
> 
> When I run the code for a second time, the DB must not be created again and
> I don't get an error anymore. The only difference is the code creating
> tables and fields. So in summary:
> 
> 1. An callback is sent in combination with vServer Xtra and creating tables
> and fields
> 2. The resulting error can be delayed with using higher timeouts. However it
> can not be avoided
> 3. It is in runtime only
> 4. I tried closing the vServer connection with closeSession() and setting it
> to 0 before calling the the create code but it did not help.
> 
> This is the last lines of the log:
> 
> 10:47:28.558000 (188): (388) Flushing 'me-inside' database: OK
> 10:47:28.558000 (188): (388) Closing database me-inside: OK
> 10:47:28.558000 (1552): (388) Unknown error!
> 10:47:28.558000 (1552): (388) ERROR #1019: Unknown server error
> 10:47:28.558000 (1552): Closing connection (388)

-- 
Best regards,
Ruslan Zasukhin      [ I feel the need...the need for speed ]
-------------------------------------------------------------
e-mail: ruslan at paradigmasoft.com
web: http://www.paradigmasoft.com

To subscribe to the Valentina mail list go to:
http://lists.macserve.net/mailman/listinfo/valentina
-------------------------------------------------------------