[ClusterLabs] Antw: Re: Q: HA_RSCTMP in SLES11 SP4 at first start after reboot

[Ulrich Windl]

>>> Vladislav Bogdanov <bubble at hoster-ok.com> schrieb am 13.08.2018 um 17:13
in
Nachricht <35541484-1f3e-e5f6-5938-cf17e12184f3 at hoster-ok.com>:
> 10.08.2018 19:52, Ulrich Windl wrote:
> 
>> Hi!
>> 
>> A simple question: One of my RAs uses $HA_RSCTMP in SLES11 SP4, and it 
> reports the following problem:
>>   WARNING: Unwritable HA_RSCTMP directory /var/run/resource‑agents ‑ using

> /tmp
> 
> Just make sure you avoid using that code in 'meta‑data' action handler 
> (it is run by crmd which runs under hacluster user to obtain and cache 
> agent meta‑data and I bet that message is from that run).

Hi!

This is a very plausible explanation. However I wonder whether it should be
documented more clearly in the RA writers guide (or corresponding document).
The other thing is whether a group "hacluster" and a "chgrp hacluster
$HA_RSCTMP; chmod g+rwx $HA_RSCTMP" would be a good idea (assuming crmd is run
as hacluster:hacluster then).
The other thing would be messing with "setfacl -m u:hacluster:rwx $HA_RSCTMP"

Regards,
Ulrich

> 
>> 
>> However the directory has the following permissions:
>> drwxr‑xr‑t 2 root root 4096 Aug 10 18:05 /var/run/resource‑agents
>> 
>> My code to check this is:
>> if [ ! ‑w "$HA_RSCTMP" ‑a "$(id ‑u)" ‑ne 0 ]; then
>>      ocf_log warn "Unwritable HA_RSCTMP directory $HA_RSCTMP ‑ using /tmp"
>>      HA_RSCTMP=/tmp
>> fi
>> 
>> Did I overlook something obvious? Could it be that the directory is created

> after the error message? I suspect that the error is triggered during a 
> parameter validation after the cluster node had been rebooted...
>> 
>> Regards,
>> Ulrich
>> 
>> 
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