If a Hardware Node has several IP addresses, VA uses the first one on the list for its communications.
If virtualization nodes has both frontnet and backnet IPs, VA Agent on one node may fail to communicate with other nodes unless preferred IP is set, e.g.:
1391441908: can not read reply from destination node 1391441908: can't connect to source node ($IP_ADDRESS) : can not read reply from destination node
This article describes how to configure VA Agent to use a particular IP address for communications via XML API.
NOTE: In case the node is a part of VA infrastructure and is managed through VA web interface, the IP address for communications is defined by the IP, used during node registration. It is advised to register the nodes via internal IPs to separate the traffic.
To make VA Agent use a particular IP address for Backup, Restore or other types of VA Agent internal traffic, follow the below steps.
Determine the IP address to be used as the primary VA Agent IP address, e.g.:
[hwnode@03:51:08][~]# ip a l 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000 link/ether 20:cf:30:1d:46:2e brd ff:ff:ff:ff:ff:ff inet 192.168.55.33/24 brd 192.168.55.255 scope global eth0 inet 10.55.67.1/24 brd 10.55.67.255 scope global eth0:0 inet6 fe80::22cf:30ff:fe1d:462e/64 scope link valid_lft forever preferred_lft forever
Locate VA Agent configuration file (
primary_address section in
vzagent.conf with the desired IP address, e.g., for Linux nodes:
[hwnode@04:20:23][~]# sed '/<primary_address>/s~>.*.<\/~>192.168.55.33<\/~' -i /var/opt/pva/agent/etc/vzagent.conf
Restart VA Agent:
# pvaagent restart
NOTE: The resulting section of "vzagent.conf" should look similar to this:
<default_remote> <default_timeout>360000</default_timeout> <connect_timeout>20</connect_timeout> <startup_timeout>10</startup_timeout> <child_connect_timeout>20</child_connect_timeout> <child_inactivity_timeout>300</child_inactivity_timeout> </default_remote> <primary_address>192.168.55.33</primary_address>
NOTE2: This example describes VA Agent configuration on a Linux node, but the solution applies to Windows nodes as well.
For more information regarding VA Agent troubleshooting on Windows and Linux, refer to this article: PVA troubleshooting
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