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Re: task prioritization
From
:
Josh Sharpe
Subject
:
Re: task prioritization
Date
:
Mon, 15 Jul 2013 22:51:43 -0400
Further, depencies are producing some backwards behavior.
In the following example starting redis server is triggering the start of my resque worker, even though the dependency tree is the reverse.
IMO, starting redis-server should trigger nothing after it starts since it's resque_worker_1 that depends on redis-server.
Here's my conf, followed by a status and tailing monit.log.
Starting with all servies turned off.
# cat /etc/monit/monit.conf
set httpd port 2812 and use the address localhost
allow 127.0.0.1
check process redis-server
with pidfile /var/run/redis.pid
start program = "/etc/init.d/redis-server start" with timeout 30 seconds
stop program = "/etc/init.d/redis-server stop"
check process resque_worker_1
with pidfile /u/apps/stocks/shared/pids/resque_worker_1.pid
start program = "/bin/sh -c 'cd /u/apps/stocks/current ; bundle exec rake environment resque:work RAILS_ENV=production QUEUE=daily_memoizer,high,medium VERBOSE=1 PIDFILE=/u/apps/stocks/shared/pids/resque_worker_1.pid >> log/resque_worker_1.log 2>&1 &'" as uid blue and gid blue with timeout 45 seconds
stop program = "/bin/sh -c 'cd /u/apps/stocks/shared/pids/ ; sudo kill -QUIT $(cat resque_worker_1.pid) || true'" as uid jsharpe as gid jsharpe with timeout 120 seconds
if totalmem is greater than 200 MB for 5 cycles then restart
depends on redis-server
group resque
# monit status
The Monit daemon 5.3.2 uptime: 8m
Process 'resque_worker_1'
status Not monitored
monitoring status Not monitored
data collected Mon, 15 Jul 2013 22:43:20
Process 'redis-server'
status Not monitored
monitoring status Not monitored
data collected Mon, 15 Jul 2013 22:43:20
System 'system_stocks-app'
status Not monitored
monitoring status Not monitored
data collected Mon, 15 Jul 2013 22:43:20
# monit start redis-server
/var/log/monit.log
[EDT Jul 15 22:45:26] info : 'redis-server' start on user request
[EDT Jul 15 22:45:26] info : monit daemon at 2898 awakened
[EDT Jul 15 22:45:26] info : Awakened by User defined signal 1
[EDT Jul 15 22:45:26] info : 'redis-server' start: /etc/init.d/redis-server
[EDT Jul 15 22:45:26] error : monit: Error reading pid from file '/var/run/redis.pid'
[EDT Jul 15 22:45:26] info : 'resque_worker_1' start: /bin/sh
[EDT Jul 15 22:45:46] info : 'redis-server' start action done
# monit status | egrep 'System|Process|status'
Process 'resque_worker_1'
status Running
monitoring status Monitored
Process 'redis-server'
status Running
monitoring status Monitored
System 'system_stocks-app'
status Not monitored
monitoring status Not monitored
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