[pgpool-general: 4489] Watch dog node goes down is cable is disconnected

[Lucas Luengas]

Hello.

I am using pgpool-II version 3.4.4 (tataraboshi), with master/slave with
streaming replication, and watchdog. I am using Centos 6.7.
I have 2 nodes: node A and node B.
Failover process is ok.
Virtual ip address is assigned ok between nodes if nodes are restarted. But
I have a problem with watchdog process if one node is disconnected of
network.
If node A is disconected from network (for example cable is disconnected),
then virtual ip address is assigned to node B. That is ok.
After a few minutes, node A is connected to network again. My problem is
than pgpool watchdog process of node A does not connect with node B, but
network is ok (ping ok, netstat listening ports (9999, 9898, ...) are ok,
...).
And node B does not connect with node A.

Pgpool log of node A shows every 10 seconds: (ip 192.168.0.226 is node B)

pid 16913: LOG:  checking pgpool status by heartbeat
pid 16913: DETAIL:  pgpool: 1 at "192.168.0.226:9999" status is down

pgpool log of node B shows every 10 seconds: (ip 192.168.0.224 is node A)

pid 8722: LOG:  checking pgpool status by heartbeat
pid 8722: DETAIL:  pgpool: 1 at "192.168.0.224:9999" status is down

I can use pcp_watchdog_info command in both servers. In node A, status of
node B is 4 (down). In node B, status of node A is 4 (down)

If I restart pgpool service in node A, then pgpool watchdog process is ok
again and status are ok for both nodes, and pgpool watchdog is recovered in
both nodes.

What is the problem?

Thank you for your help.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.sraoss.jp/pipermail/pgpool-general/attachments/20160224/10e73944/attachment-0001.html>