[asterisk-bugs] [JIRA] (ASTERISK-22708) ODBC Failover Behavior Not As Expected with MySQL

[JoshE (JIRA)]

JoshE created ASTERISK-22708:
--------------------------------

             Summary: ODBC Failover Behavior Not As Expected with MySQL
                 Key: ASTERISK-22708
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22708
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Resources/res_odbc
    Affects Versions: 11.5.1
         Environment: CentOS 6
            Reporter: JoshE


The database failover behavior does not work as expected with MySQL / MariaDB on the databases.  Based on a reading of the documentation and source, I would expect this config in res_odbc to behave differently than it does:

[config]
enabled => yes
dsn => MySQL
username => user
password => hidden
pre-connect => yes
sanitysql => select 1
idlecheck => 30
share_connections => yes
connect_timeout => 2
negative_connection_cache => 300

[config_2]
enabled => yes
dsn => MySQL-2
username => user
password => hidden
pre-connect => yes
sanitysql => select 1
idlecheck => 30
share_connections => yes
connect_timeout => 2
negative_connection_cache => 300

Based on my reading, a connect timeout getting hit should cause a negative cache where new connections are not attempted for 300 seconds.  That does not occur in practice.  The server continually attempts to reconnect to the server, meanwhile the entire system becomes totally unusable until the database connection is restored.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.asterisk.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira