High Availability

We use "UCARP" software make sure PCC is always available.

HA How does UCARP work?

http://www.ucarp.org/project/ucarp

Configuration

Configuration File: /usr/local/pcc/ha_flip/flip_config

!/bin/bash

MASTER=1 # set 1 if this server is master else set 0 MASTERIP="X.X.X.X" SLAVEIP="Y.Y.Y.Y" FLOATIP="Z.Z.Z.Z" DEVICE="eth0" IFACE="$DEVICE" SECRET="secret"

keep_update(){ ip addr list | grep "$FLOATIP" if [ $? == "0" ] then

   rsync -avzr –rsh=ssh /etc/asterisk/* root@$DSTIP:/etc/asterisk >> /var/log/ha_flip.log
   rsync -avzr –rsh=ssh /var/spool/asterisk/* root@$DSTIP:/var/spool/asterisk >> /var/log/ha_flip.log
   rsync -avzr –rsh=ssh /var/lib/asterisk/* root@$DSTIP:/var/lib/asterisk >> /var/log/ha_flip.log
   rsync -avzr –rsh=ssh /var/www/* root@$DSTIP:/var/www >> /var/log/ha_flip.log

fi }

   MASTER: If it is master server, set it to 1; otherwise, change it to 0.
   MASTERIP: Set master server IP address
   SLAVEIP: Set slave server IP address
   FLOATIP: Set float IP address
   Device: The interface to use for sending advertise packets

Run script

You may run this command and add it to "/etc/rc.local":

/usr/local/pcc/ha_flip/flip_start_server

NOTE 1: Clients use Float IP to connect to server. NOTE 2: Since UCARP uses multicast packets to send advertise packets, it should not be filtered in network.

High Availability

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