[Gluster-users] Strange issues with du and df

[Stas Oskin]

Hi.
Ok, df was incorrect because one of servers went into <defunct> (zombie)
state, and df waits until the software done writing or releases writing
handles.

I'm giving GlusterFS a 3rd try, but these issues are very critical:

1) 0 size files
2) AFR losts some of the files - after a day of running there is a mismatch
between the one server and the second one
3) Possible memory leak
4) Server going to defunct state


Any idea how it would be the best to diagnose and advance with these issues?

Thanks!

2009/3/31 Stas Oskin <stas.oskin at gmail.com>

> Hi.
>
> I'm receiving very strange results with AFR:
>
> Client:
>
> df -h:
> Filesystem            Size  Used Avail Use% Mounted on
> glusterfs              31G   28G 1020M  97% /mnt/media
>
> du -sh for mounted directory:
> 1007M  (ompletely different)
>
>
> Server 1:
> df -h:
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/hda4              31G   28G 1021M  97% /media
>
> du -sh for exported directory:
> 1007M (completely different here too!)
>
>
> Server 2:
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/hda4              31G  1.1G   28G   4% /media
>
> du -sh for exported directory:
> 920M
>
>
> 1) It's just like the AFR completely broken.
> 2) What's more strange, that the server 1 has completely different stats
> for 2 commands - first time that I see it.
> 3) This happened after the disk space on GlusterFS got completely full.
>
>
> I also have some files with 0 sizes, so the other mentioned problem exist
> too. The used version is 2RC7.
>
> How can these issues be tracked down? They are very serious,
> and basically influent the whole cluster reliability.
>
> Regards.
>
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