14 Jan
2011
14 Jan
'11
11:42 a.m.
Hello,
what version of postgres and postgres client library are you using?
According to the docs from devel manual, this is the function that
should be used to reconnect:
|PQreset|
Resets the communication channel to the server.
void PQreset(PGconn *conn);
This function will close the connection to the server and attempt to
reestablish a new connection to the same server, using all the same
parameters previously used. This may be useful for error recovery if
a working connection is lost.
You may see more here:
http://www.network-theory.co.uk/docs/postgresql/vol2/DatabaseConnectionCont…
Somehow seems not to work in this case. Can you try also with a shorter
down time for postgres server, like a normal restart? Would be intrested
to see if the client side loses somehow connection parameters due to
long time unconnected.
Cheers,
Daniel
On 1/14/11 11:15 AM, Javier Gallart wrote:
Hi Daniel
this is my test:
1- Kamailio starts and correctly loads the mtree
2- I make whatever modification in the tree and reload with mt_reload
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: db_postgres
[km_dbase.c:153]: sending query ok: 0x92f880 - [select
tname,tprefix,tvalue from mtree order by tname]
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: <core>
[db_res.c:118]: allocate 48 bytes for result set at 0x94cd00
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: db_postgres
[km_dbase.c:220]: 0x92f880 PQresultStatus(PGRES_TUPLES_OK)
PQgetResult(0x29f05f0)
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: db_postgres
[km_res.c:108]: 3 columns returned from the query
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: <core>
[db_res.c:155]: allocate 24 bytes for result names at 0x94cc60
[....]
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: db_postgres
[km_res.c:267]: freeing row buffer at 0x94c940
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: mtree
[mtree.c:738]: adding new tname [1]
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: <core>
[db_res.c:54]: freeing 3 rows
[...]
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: <core>
[db_res.c:94]: freeing result names at 0x94cc60
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: <core>
[db_res.c:99]: freeing result types at 0x94cbc0
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: <core>
[db_res.c:136]: freeing result set at 0x94cd00
Jan 14 04:19:06 kam-test ./kamailio[31205]: DEBUG: db_postgres
[km_dbase.c:313]: PQclear(0x29f05f0) result set
3. Postgres DB restarts (either through restart, or /stop/wait a
minute/start)
No log is written in Kamailio when this happens.
4.- I try again to reload the tree, and these are the logs:
Jan 14 04:21:42 kam-test ./kamailio[31205]: DEBUG: db_postgres
[km_dbase.c:153]: sending query ok: 0x92f880 - [select
tname,tprefix,tvalue from mtree order by tname]
Jan 14 04:21:42 kam-test ./kamailio[31205]: DEBUG: <core>
[db_res.c:118]: allocate 48 bytes for result set at 0x94cd00
Jan 14 04:21:42 kam-test ./kamailio[31205]: DEBUG: db_postgres
[km_dbase.c:220]: 0x92f880 PQresultStatus(PGRES_FATAL_ERROR)
PQgetResult(0x29ef0a0)
Jan 14 04:21:42 kam-test ./kamailio[31205]: ERROR: db_postgres
[km_dbase.c:236]: 0x92f880 - invalid query, execution aborted
Jan 14 04:21:42 kam-test ./kamailio[31205]: ERROR: db_postgres
[km_dbase.c:237]: 0x92f880 - PQresultStatus(PGRES_FATAL_ERROR)
Jan 14 04:21:42 kam-test ./kamailio[31205]: ERROR: db_postgres
[km_dbase.c:238]: 0x92f880: server closed the connection
unexpectedly#012#011This probably means the server terminated
abnormally#012#011before or while processing the request.#012
Jan 14 04:21:42 kam-test ./kamailio[31205]: DEBUG: <core>
[db_res.c:81]: freeing 0 columns
Jan 14 04:21:42 kam-test ./kamailio[31205]: DEBUG: <core>
[db_res.c:136]: freeing result set at 0x94cd00
Jan 14 04:21:42 kam-test ./kamailio[31205]: ERROR: mtree
[mtree_mod.c:633]: Error while fetching result
Jan 14 04:21:42 kam-test ./kamailio[31205]: ERROR: db_postgres
[km_dbase.c:329]: invalid parameter value
Jan 14 04:21:42 kam-test ./kamailio[31205]: ERROR: mtree
[mtree_mod.c:744]: cannot re-load info from database
Thanks in advance
Regards
Javi
On Thu, Jan 13, 2011 at 1:56 PM, Daniel-Constantin Mierla
<miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote:
Can you send the log messages (debug=3) for that moment (restart
of pg server and making a new call/registration)?
Daniel
On 1/13/11 12:00 PM, Javier Gallart wrote:
--
Daniel-Constantin Mierla
Kamailio (OpenSER) Advanced Training
Jan 24-26, 2011, Irvine, CA, USA
http://www.asipto.com
Hi Daniel
I have just tested it and I'm getting the same results. This is
the kamailio version I'm testing:
root@kam-test:/usr/local/kamailio/sbin# ./kamailio -V
version: kamailio 3.2.0-dev2 (x86_64/linux) 35568f
Thanks!
Javi
On Tue, Jan 4, 2011 at 3:46 PM, Javier Gallart
<jgallartm(a)gmail.com <mailto:jgallartm@gmail.com>> wrote:
Hi list
we have been testing the mtree module. We do periodical
reloads of the mtree table with the "mi mt_reload" command
through xmlrpc. It works fine except when the db is
restarted. If we manually restart the db and then try the
mt_reload commands we get this error:
Jan 4 09:13:17
server /usr/local/kamailio-3.1.1/sbin/kamailio[28534]: ERROR:
db_postgres [km_dbase.c:152]: 0xa6a490 PQsendQuery Error:
server closed the connection unexpectedly#012#011This
probably means the server terminated abnormally#012#011before
or while processing the request.#012 Query: select
partition,prefix,route from trees order by partition
Jan 4 09:13:17 server
/usr/local/kamailio-3.1.1/sbin/kamailio[28534]: ERROR: <core>
[db_query.c:101]: error while submitting query
Jan 4 09:13:17 server
/usr/local/kamailio-3.1.1/sbin/kamailio[28534]: ERROR: mtree
[mtree_mod.c:622]: Error while querying db
Jan 4 09:13:17 server
/usr/local/kamailio-3.1.1/sbin/kamailio[28534]: ERROR: mtree
[mtree_mod.c:738]: cannot re-load info from database
Is there a way to reconnect to the db before sending that
command?
Thanks in advance
Regards
Javi
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--
Daniel-Constantin Mierla
Kamailio (OpenSER) Advanced Training
Jan 24-26, 2011, Irvine, CA, USA
http://www.asipto.com
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