Hi,
There is an issue with gpfs.snap which scans AFM internal mounts. This is
issue got fixed in later releases. To workaround this problem,
1. cp /usr/lpp/mmfs/bin/gpfs.snap /usr/lpp/mmfs/bin/gpfs.snap.orig
2. Change this line :
ccrSnapExcludeListRaw=$($find /var/mmfs \
\( -name "proxy-server*" -o -name "keystone*" -o -name "openrc*" \)
\
2>/dev/null)
to this:
ccrSnapExcludeListRaw=$($find /var/mmfs -xdev \
\( -name "proxy-server*" -o -name "keystone*" -o -name "openrc*" \)
\
2>/dev/null)
Regards,
Venkat
-------------------------------------------------------------------
Venkateswara R Puvvada/India/IBM@IBMIN
[email protected]
+91-80-41777734
From: Loic Tortay <[email protected]>
To: gpfsug main discussion list <[email protected]>
Date: 04/19/2016 07:13 PM
Subject: Re: [gpfsug-discuss] Extended attributes and ACLs with
AFM-based "NFS migration"
Sent by: [email protected]
On 04/19/2016 08:01 AM, Venkateswara R Puvvada wrote:
> Hi,
>
> AFM usually logs the following message at gateway node if it cannot open
> control file to read ACLs/EAs.
>
> AFM: Cannot find control file for file system <FS>
fileset
> <Fileset> in the exported file system at home.
> ACLs and extended attributes will not be synchronized.
> Sparse files will have zeros written for holes.
>
> If the above message didn't not appear in logs and if AFM failed to
bring
> ACLs, this may be a defect. Please open PMR with supporting traces to
> debug this issue further. Thanks.
>
Hello,
There is no such message on any node in the test cluster.
I have opened a PMR (50962,650,706), the "gpfs.snap" output is on
ecurep.ibm.com in "/toibm/linux/gpfs.snap.50962.650.706.tar".
BTW, it would probably be useful if "gpfs.snap" avoided doing a "find
/var/mmfs ..." on AFM gateway nodes (or used appropriate find options),
since the NFS mountpoints for AFM are in "/var/mmfs/afm" and their
content is scanned too.
This can be quite time consuming, for instance our test setup has
several million files in the home filesystem.
The "offending" 'find' is the one at line 3014 in the version of
gpfs.snap included with Spectrum Scale 4.1.1-5.
Loïc.
--
| Loïc Tortay <[email protected]> - IN2P3 Computing Centre |
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