|Subject:||Re: Processes dependencies|
|Date:||Tue, 17 Mar 2015 09:20:13 -0300|
Hi Guido,the dependencies in Monit are currently "soft" ... Monit performs the actions based on the dependency tree, but doesn't wait/verify that the "parent" service is functional before starting "children" services.
We plan to fix the dependencies to work exactly the same as you described.
Regards,Martin--HI all,I'm reading about service dependencies but I couldn't find any regarding monit waiting for a give process to start before starts another one. I have a Python based service that depends on redis-server to work, so here is the configuration:
check process redis-server with pidfile /var/run/redis/redis-server.pid
start program "/etc/init.d/redis-server start" with timeout 60 seconds
stop program "/etc/init.d/redis-server stop"
check process insert with pidfile /tmp/service.pid
start program "/root/init.sh start"
stop program "/root/init.sh stop"
depends on redis-serverWhen I start the insert process, monit starts it and also starts redis-server as expected but both at the same time. Given that my redis-server has to load a huge dataset, it takes about 40 seconds to initiate so insert start complaining about can't connecting to redis.Is there a way that I can tell monit to make sure redis-server is in running state before execute the start of insert?Can you tell me I there is another documentation but this http://mmonit.com/monit/documentation/monit.html#SERVICE-DEPENDENCIES regarding this topic?Thank you in advance.
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