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From: Benjamin Marzinski <bmarzins@redhat.com>
To: lixiaokeng <lixiaokeng@huawei.com>
Cc: linfeilong <linfeilong@huawei.com>,
	dm-devel mailing list <dm-devel@redhat.com>,
	Martin Wilck <mwilck@suse.com>,
	"liuzhiqiang \(I\)" <liuzhiqiang26@huawei.com>
Subject: Re: [dm-devel] [Question] multipathd.service start failed when /var/run isn't mount
Date: Thu, 22 Jul 2021 16:42:53 -0500	[thread overview]
Message-ID: <20210722214253.GC3087@octiron.msp.redhat.com> (raw)
In-Reply-To: <37767722-8e6c-4176-d234-87134c21cd4c@huawei.com>

On Thu, Jul 22, 2021 at 10:51:22AM +0800, lixiaokeng wrote:
> When we enable multipathd.service with systemctl and reboot,
> multipathd doesn't start and log "failed to create pidfile".
> 
> The reason is following:
> 
> The RUN is /var/run in multipath-tools. When we start linux, we
> mount a disk to /var. So if multipathd.service start before mount,
> it will fail to activate.(If mount firstly, multipathd will start
> successfully)
> 
> The RUN is defined in Makefile.inc:
> 
> ifndef RUN
>         ifeq ($(shell test -L /var/run -o ! -d /var/run && echo 1),1)
>                 RUN=run
>         else
>                 RUN=var/run
>         endif
> endif
> 
> Can it always be defined as run?

I believe all modern distributions make /var/run a symlink to /run.
However, if that's the case, then I don't understand why you are running
into this issue at all, since multipath should be using /run. What
multipath packages are you using?

-Ben

> 
> Regards,
> Lixiaokeng

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  reply	other threads:[~2021-07-22 21:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-22  2:51 [dm-devel] [Question] multipathd.service start failed when /var/run isn't mount lixiaokeng
2021-07-22 21:42 ` Benjamin Marzinski [this message]
2021-07-23  6:27   ` lixiaokeng
2021-07-23 16:56     ` Benjamin Marzinski
2021-07-26 12:22       ` lixiaokeng
2021-07-26 16:28         ` Benjamin Marzinski
2021-08-12 11:09           ` Martin Wilck
2021-08-12 12:42             ` lixiaokeng

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