[pgpool-hackers: 1253] pgpool zombie with wathdog 3.5

[Yugo Nagata]

Usama,

A zombie process appeared after pgpool started with watchdog.

$ ps aux | grep pgpool
...
yugo-n   32156  0.0  0.0  19880  1244 pts/27   S    16:31   0:00 pgpool: watchdog                                                                                                                                                                                                          
yugo-n   32165  0.0  0.0      0     0 pts/27   Z    16:31   0:00 [pgpool] <defunct>
yugo-n   32166  0.0  0.0  17792   768 pts/27   S    16:31   0:00 pgpool: lifecheck 
...

I found PID 32165 was pid of the escalation process.

 2015-12-21 16:31:33: pid 32156: LOG:  escalation process started with PID:32165
 2015-12-21 16:31:33: pid 32165: LOG:  watchdog: escalation started

I can reproduce this on Ubuntu but not CentOS.

Regarads,
-- 
Yugo Nagata <nagata at sraoss.co.jp>