Active-Active notifier using presence module
Ivan Ribakov via sr-users <[email protected]>
| Newsgroups | gmane.comp.voip.ser |
|---|---|
| Message-ID | <[email protected]> |
I would like to configure 2 (or more) Kamailio to act as HA notifier cluster. I want subscriptions to survive complete node reboots so I'm looking at using presence module with DB replication, specifically: subs_db_mode = 3 and publ_cache = 0. However while running some initial tests I came across the table locking issue (MySQL error 1100). I'm using MariaDB 10.11 with innoDB and default root user. Further research led me to an older thread (https://lists.kamailio.org/pipermail/sr-users/2019-January/104288.html) and the documentation for db_table_lock_type parameter that states that it should be set to 0 (no locking) when using DB-only mode (subs_db_mode = 3). My question is - if presence module is not using table locks, what prevents notify processes on 2 or more different nodes to simultaneously process the same presentity record and issue multiple notifies for the same subscription? __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions -- [email protected] To unsubscribe send an email to [email protected] Important: keep the mailing list in the recipients, do not reply only to the sender!