[Freeswitch-users] Spidermonkey ODBC
Jonas Gauffin
jonas.gauffin at gmail.com
Tue Feb 19 07:18:29 EST 2008
I''ve only tested it with firebird on windows. As you said, your driver name
doesnt match any of the names I used to detect if it's firebird.
The problem is that most databases supports "SELECT 1" as a query. It will
always be successful if the the connection is up. However, firebird did not
support "SELECT 1" and therefore i did query the system database instead.
If the firebird check fails, it will try to invoke "SELECT 1", and on
firebird that query will fail. And the failure is interpreted as the
connection is down, and therefore it tries to reconnect.
That's probably why you get that error. If you have any other idea on how I
can detect if it's a firebird db, please let me know and i'll fix the odbc
code.
On Feb 19, 2008 1:05 PM, David Revill <davidrevill at datarun.co.uk> wrote:
> That's a fair point, but db_is_up is only called in 2 places and the
> attempted re-connect could be done if the exec'd query fails. That way it
> would not be dependant on the name of the driver.
>
> In my application, the database was queried at the beginning of the script
> and the connection closed. It was explicitly re-connected at the end to post
> data, so the connection timeout was not an issue.
>
> ----- Original Message -----
> *From:* Jonas Gauffin <jonas.gauffin at gmail.com>
> *To:* freeswitch-users at lists.freeswitch.org
> *Sent:* Tuesday, February 19, 2008 10:35 AM
> *Subject:* Re: [Freeswitch-users] Spidermonkey ODBC
>
> I did that code a couple of months ago.
> The function was added since connections are closed if they are idle too
> long, and they were not reconnected again if that happened.
>
>
> On Feb 19, 2008 11:22 AM, David Revill <davidrevill at datarun.co.uk> wrote:
>
> > The problem is in switch_odbc.c function db_is_up. It assumes that the
> > variable is_firebird is true, but the setting of this variable assumes that
> > the Firebird driver name has 'FIREBIRD', 'FB64' or 'FB32' in it.
> >
> > I commented out the code in db_is_up and just returned a true value, as
> > on closer inspection could not see the point of this function.
> >
> > David Revill
> >
> > ----- Original Message -----
> > *From:* David Revill <davidrevill at datarun.co.uk>
> > *To:* freeswitch-users at lists.freeswitch.org
> > *Sent:* Tuesday, February 19, 2008 8:58 AM
> > *Subject:* Re: [Freeswitch-users] Spidermonkey ODBC
> >
> > I spotted this error a few months ago, and to my shame did not let
> > everyone know. I have since archived the project so cannot point you to the
> > actual code. However, the problem is that it assumes the name of the
> > Firebird Driver (FB64?) to set a boolean, so that it handle the connection
> > test differently.
> >
> > When looking at the actual code, I actually felt that the connection
> > test was redundant, as all it did was a select from a system table. This
> > meant it was doing two queries for everyone required. (One to see if it
> > could do a query, and then one to do it). I therefore commented the
> > connection test function out.
> >
> > regards
> >
> > David Revill
> >
> > ----- Original Message -----
> > *From:* Steven Brown <steven.brown at justfone.com>
> > *To:* freeswitch-users at lists.freeswitch.org
> > *Sent:* Monday, February 18, 2008 11:34 PM
> > *Subject:* [Freeswitch-users] Spidermonkey ODBC
> >
> > Hi,
> >
> > I'm experimenting with spidermonkey for JavaScript call control, the
> > basics seem fine and I'm now trying to connect to an existing Firebird
> > database, the Firebird odbc lib is installed ok as is unixODBC and I can
> > confirm this and access the db no problem with isql, something strange
> > happens though when I connect in spidermonkey, basically the odbc connection
> > is made successfully, but then as soon as I call either exec or query the
> > odbc connection starts to drop and re-connect continuously,
> >
> > the isql output is below
> >
> > isql -v test
> > +---------------------------------------+
> > | Connected! |
> > | |
> > | sql-statement |
> > | help [tablename] |
> > | quit |
> > | |
> > +---------------------------------------+
> > SQL> select first 1 * from pool_phones
> > +---------------------+------------+
> > | GSMNO | ORGNO |
> > +---------------------+------------+
> > | 0712345678 | 1 |
> > +---------------------+------------+
> > SQLRowCount returns 1
> > 1 rows fetched
> > SQL>
> > however the following test code calling the same query
> >
> > use("ODBC");
> > var db = new ODBC("test","SYSDBA","masterkey");
> > db.connect();
> > db.query("select first 1 * from pool_phones");
> > db.nextRow();
> > row = db.getData();
> > console_log("INFO","HELLO " + row["GSMNO"] + "\n");
> > exit();
> >
> > gives the following output and then just loops disconnecting and
> > reconnecting until I shutdown freeswitch
> > 2008-02-18 23:26:03 [DEBUG] switch_core_state_machine.c:144
> > switch_core_standard_on_execute() sofia/default/1000 at 192.168.0.7:5060Execute javascript(/usr/scripts/test1.js)
> > 2008-02-18 23:26:03 [DEBUG] mod_spidermonkey.c:3150 js_api_use() Loading
> > ODBC
> > 2008-02-18 23:26:03 [DEBUG] switch_odbc.c:145
> > switch_odbc_handle_connect() Connecting test
> > 2008-02-18 23:26:03 [DEBUG] switch_odbc.c:174
> > switch_odbc_handle_connect() Connected to [test]
> > 2008-02-18 23:26:03 [DEBUG] switch_odbc.c:95
> > switch_odbc_handle_disconnect() Disconnected 0 from [test]
> > 2008-02-18 23:26:03 [DEBUG] switch_odbc.c:142
> > switch_odbc_handle_connect() Re-connecting test
> > 2008-02-18 23:26:03 [DEBUG] switch_odbc.c:145
> > switch_odbc_handle_connect() Connecting test
> > 2008-02-18 23:26:03 [DEBUG] switch_odbc.c:174
> > switch_odbc_handle_connect() Connected to [test]
> > 2008-02-18 23:26:03 [CRIT] switch_odbc.c:234 db_is_up() The sql server
> > is not responding for DSN test []
> > 2008-02-18 23:26:03 [INFO] switch_odbc.c:239 db_is_up() The connection
> > has been re-established
> > ...
> >
> > Any ideas much appreciated
> >
> > Thanks
> >
> > Steve
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > ------------------------------
> >
> > _______________________________________________
> > Freeswitch-users mailing list
> > Freeswitch-users at lists.freeswitch.org
> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> > http://www.freeswitch.org
> >
> > ------------------------------
> >
> > _______________________________________________
> > Freeswitch-users mailing list
> > Freeswitch-users at lists.freeswitch.org
> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> > http://www.freeswitch.org
> >
> >
> > _______________________________________________
> > Freeswitch-users mailing list
> > Freeswitch-users at lists.freeswitch.org
> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> > http://www.freeswitch.org
> >
> >
> ------------------------------
>
> _______________________________________________
> Freeswitch-users mailing list
> Freeswitch-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>
> _______________________________________________
> Freeswitch-users mailing list
> Freeswitch-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20080219/39e439eb/attachment.html
More information about the Freeswitch-users
mailing list