On 05/14/2011 10:46 AM, Sigbjorn Lie wrote:
> I've noticed that if the machine running IPA is very busy at startup,
> the IPA services will not be online when the machine is started.
> I noticed this is as my test virtualization host has had it's power
> cord knocked out a few times. When I restart the host machine, all the
> virtual machines is started at the same time, causing (a lot) higher
> than normal latency for each virtual machine.
> This causes the IPA daemons to start, while during the startup one or
> several IPA daemons fails due to dependencies of other daemons which
> is not started yet, and all the IPA daemons is stopped as not all the
> IPA daemons started successfully. I've noticed that the default
> behavior of the ipactl command is to shut down all the IPA daemons, if
> any of the IPA daemons should fail during startup.
> This can be seen in the logs of the individual services, as some is
> started successfully, just to receive a shutdown signal shortly after.
> It seem to be the pki-ca which shut down my IPA services this morning.
> When rebooting the virtual machine running the IPA daemons during
> normal load of the host machine, all the IPA daemons start
> successfully. Logging on to the IPA server and manually starting the
> IPA daemons after the load of the host machine has decreased also works.
> I suggest changing the startup scripts to allow (a lot) longer startup
> times for the IPA daemons prior to failing them.

F15 introduced new way to start daemons and define dependencies.
We have in our plans to port IPA to use systemd in F16. This will have
implications on the architecture of the service startup in general and
most likely will affect the current way of starting services too.

> Rgds,
> Siggi
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Thank you,
Dmitri Pal

Sr. Engineering Manager IPA project,
Red Hat Inc.

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