Hi Thanks for Answers. My compromised design about a VOIP system is this: 1-It is Active/Standby and saving Call states are NOT important and switch over up-til 5 minutes is ok (if Active server fails ,sip phones should register again in Standby server)
2-Not saving any Persistence data in internal Asterisk database Astdb and put it in RAMDisk. According to Freeswitch wiki(similar project)it greatly improve performance and prolong SSD life: "On a normal configuration, core.db is written to disk almost every second, generating hundreds of block-writes per second. To avoid this problem, turn /usr/local/freeswitch/db into an in-memory filesystem. If you use SSDs, it is CRITICAL that you move core.db to a RAM disk to prolong the life of the SSD." https://wiki.freeswitch.org/wiki/FreeSWITCH_DB_In_RAMdrive https://wiki.freeswitch.org/wiki/Performance_testing_and_configurations#FreeSWITCH.27s_core.db_I.2FO_bottleneck https://freeswitch.org/confluence/display/FREESWITCH/SSD+Tuning+for+Linux 3-Persistance data saved in another Sqlite3 or odbc database. Configuration files, voice files... should be synchronized between Active and standby server bidirectionally(GlusterFs,csync2,unison) also Sqlite3(rqlite?) or odbc database(postgresql bdr , mysql master master). Bidirectionally because I want when master server recovered from a failure it has all changes Slave server done (follow me changes , voice message deletes... ) another reason for bidirectional replication is may be we can put some load on standby server( some queue or some IVRs...with fallback to Active capability) 4-It is possible to use sip phones with capability of setting primary and secondary servers but IP float (Keepalived) is preferred. Regards M.Shirazi ________________________________ From: Michael Knill <michael.kn...@ipcsolutions.com.au> To: AstLinux Users Mailing List <astlinux-users@lists.sourceforge.net> Sent: Monday, July 10, 2017 3:11 AM Subject: Re: [Astlinux-users] RAMdisk and HA Hi Mehdi 1. Im interested in your requirements here. Are you having performance issues with the current setup? Are the DB lookups your bottleneck? Are you using an SSD? 2. Astlinux supports WAN failover only. There are a few articles available regarding solutions for Asterisk HA but it is not an inbuilt Asterisk feature. What are your requirements for HA? 3. It should be fairly simple to build some middleware for this Regards Michael Knill From: AstLinux List <astlinux-users@lists.sourceforge.net> Reply-To: Mehdi Shirazi <mahdi_shir...@yahoo.com>, AstLinux List <astlinux-users@lists.sourceforge.net> Date: Saturday, 8 July 2017 at 3:33 pm To: AstLinux List <astlinux-users@lists.sourceforge.net> Cc: Mehdi Shirazi <mahdi_shir...@yahoo.com> Subject: [Astlinux-users] RAMdisk and HA Hi Thanks for maintaining good project. 1-Is it possible to put internal Asterisk database in RAMdisk (tmpfs) for performance and save other persistence database in another database? 2-Is there any HA solution ? (Active /Standby, keepalived) 3-Is there any automatic two way file(database) synchronization utility ? Regards M.Shirazi ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Astlinux-users mailing list Astlinux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to pay...@krisk.org. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Astlinux-users mailing list Astlinux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to pay...@krisk.org.
