On Sun, 29 Jul 2012, Marc Haber wrote:
> When I reload Icinga, it stops doing checks and updating the "old"
> CGIs data for about a minute while the disk keeps churning away at
> maximum usage, writing to /var. After about a minute, normal operation
> resumes.
>
> What is Icinga doing in that period? I am curious because it is mildly
> annoying that one has to wait for this period to happen before one
> sees the results of a configuration change, and that no checks are
> done in this time (which is a rather minor issue in my environment).
During that period, Icinga is rebuilding the IDO database to
reflect first the (newly) configured state and then the old state
of all the hosts and services. Since IDO and the event-handler
are single-threaded, this must complete before the scheduler finally
starts and checks get going again. In very large instances, this
can take several to many minutes.
Cheers!
+------------------------------------------------+---------------------+
| Carl Richard Friend (UNIX Sysadmin) | West Boylston |
| Minicomputer Collector / Enthusiast | Massachusetts, USA |
| mailto:[email protected] +---------------------+
| http://users.rcn.com/crfriend/museum | ICBM: 42:22N 71:47W |
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