[CentOS] cron.hourly runs twice
Timothy Murphy
gayleard at eircom.net
Wed Mar 17 22:04:52 UTC 2010
Jason Pyeron wrote:
>> >>> For some reason I cannot fathom,
>> >>> cron.hourly runs twice each hour
>> >>> on one of my two CentOS-5.4 systems,
>
> Add this to the cron.hourly
>
> #!/bin/sh
> pstree -up >> /tmp/foo.log
I tried this; the relevant lines on the first machine are:
-----------------------------------------
|-crond(9167)-+-crond(9439)---run-parts(9441)-+-awk(9452)
| | `-foo(9450)---
pstree(9451)
| `-crond(9440)---run-parts(9442)-+-awk(9455)
| `-foo(9454)---
pstree(9456)
|-cupsd(5301)---{cupsd}(17775)
-----------------------------------------
and on the other CentOS machine:
-----------------------------------------
|-crond(2824)---crond(28255)---run-parts(28256)---foo(28257)---
pstree(28258)
-----------------------------------------
I've checked that /etc/rc.d/init.d/crond on the two machines
are the same.
So too is /etc/sysconfig/crond .
I'm not clear why crond starts another copy of crond,
even on the second machine?
--
Timothy Murphy
e-mail: gayleard /at/ eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland
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