Hi Simone,
Not really an answer to the db_cluster issue but I use MariaDB's Maxscale for managing connections to the a Galera cluster, maybe you can try that instead if you can't solve the problem.

On Thu, 11 Apr 2019, at 10:31 PM, Simone Lazzaris wrote:

Hi everybody;

I'm trying to use db_cluster to connect my kamailio installation to a mariadb galera cluster, and it's driving me crazy.

 

In my lab it works without issues, but when I try the setup in the production node, I get some strange errors:

 

Apr 11 14:21:31 ERROR: db_mysql [km_dbase.c:127]: db_mysql_submit_query(): driver error on query: Commands out of sync; you can't run this command now (2014)

Apr 11 14:21:31 ERROR: <core> [db_query.c:132]: db_do_query_internal(): error while submitting query

 

This is my configuration:

 

modparam("db_cluster", "connection","con1=>mysql://openser:PASSWD@X.X.X.30/openser")

modparam("db_cluster", "connection","con2=>mysql://openser:PASSWD@X.X.X.31/openser")

modparam("db_cluster", "connection","con3=>mysql://openser:PASSWD@X.X.X.32/openser")

modparam("db_cluster", "cluster", "cls1=>con1=9r8r;con2=9r8r;con3=9r8r")

#!define DBURL "cluster://cls1"

#!define SQLOPSURL "database=>cluster://cls1"

 

modparam("dispatcher", "db_url", DBURL)

modparam("acc", "db_url", DBURL)

modparam("usrloc", "db_url", DBURL)

modparam("auth_db", "db_url", DBURL)

modparam("permissions", "db_url", DBURL)

modparam("alias_db", "db_url", DBURL)

modparam( "sqlops", "sqlcon", SQLOPSURL )

 

I'm using version 5.1.4 of kamailio, freshly compiled from source on a debian 9.

 

Any ideas?


--

Simone Lazzaris
Responsabile datacenter

Qcom S.p.A.
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