hi!
sometimes we've on some client-servers hanging uninterruptible processes
("ps aux" stat is on "D" ) and on one the CPU wait I/O grows within some
minutes to 100%.
you are not able to kill such processes - also "kill -9" doesnt work -
when you connect via "strace" to such an process, you wont see anything
and you cannot detach it again.
there are only two possibilities:
killing the glusterfs process (umount GFS share) or rebooting the server.
the only log entry I found, was on one client - just a single line:
[2011-06-06 10:44:18.593211] I
[afr-common.c:581:afr_lookup_collect_xattr] 0-office-data-replicate-0:
data self-heal is pending for
/pc-partnerbet-public/Promotionaktionen/Mailakquise_2009/Webmaster_2010/HTML/bilder/Thumbs.db.
one of the client-servers is a samba-server, the other one a
backup-server based on rsync with millions of small files.
gfs-servers + gfs-clients: SLES11 x86_64, glusterfs V 3.2.0
and here are the configs from server and client:
server config
"/etc/glusterd/vols/office-data/office-data.gfs-01-01.GFS-office-data02.vol":
volume office-data-posix
type storage/posix
option directory /GFS/office-data02
end-volume
volume office-data-access-control
type features/access-control
subvolumes office-data-posix
end-volume
volume office-data-locks
type features/locks
subvolumes office-data-access-control
end-volume
volume office-data-io-threads
type performance/io-threads
subvolumes office-data-locks
end-volume
volume office-data-marker
type features/marker
option volume-uuid 3c6e633d-a0bb-4c52-8f05-a2db9bc9c659
option timestamp-file /etc/glusterd/vols/office-data/marker.tstamp
option xtime off
option quota off
subvolumes office-data-io-threads
end-volume
volume /GFS/office-data02
type debug/io-stats
option latency-measurement off
option count-fop-hits off
subvolumes office-data-marker
end-volume
volume office-data-server
type protocol/server
option transport-type tcp
option auth.addr./GFS/office-data02.allow *
subvolumes /GFS/office-data02
end-volume
--------------
client config "/etc/glusterd/vols/office-data/office-data-fuse.vol":
volume office-data-client-0
type protocol/client
option remote-host gfs-01-01
option remote-subvolume /GFS/office-data02
option transport-type tcp
end-volume
volume office-data-replicate-0
type cluster/replicate
subvolumes office-data-client-0
end-volume
volume office-data-write-behind
type performance/write-behind
subvolumes office-data-replicate-0
end-volume
volume office-data-read-ahead
type performance/read-ahead
subvolumes office-data-write-behind
end-volume
volume office-data-io-cache
type performance/io-cache
subvolumes office-data-read-ahead
end-volume
volume office-data-quick-read
type performance/quick-read
subvolumes office-data-io-cache
end-volume
volume office-data-stat-prefetch
type performance/stat-prefetch
subvolumes office-data-quick-read
end-volume
volume office-data
type debug/io-stats
option latency-measurement off
option count-fop-hits off
subvolumes office-data-stat-prefetch
end-volume
--
Mit freundlichen Gr?ssen
Markus Fr?hlich
Techniker
________________________________________________________
Xidras GmbH
Stockern 47
3744 Stockern
Austria
Tel: +43 (0) 2983 201 30503
Fax: +43 (0) 2983 201 305039
Email: markus.froehlich at xidras.com
Web: http://www.xidras.com
FN 317036 f | Landesgericht Krems | ATU64485024
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