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/DatabaseConnectionContr...
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
- 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@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: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@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 _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org <mailto:sr-users@lists.sip-router.org> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users-- Daniel-Constantin Mierla Kamailio (OpenSER) Advanced Training Jan 24-26, 2011, Irvine, CA, USA http://www.asipto.com
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