Hi guys, I've found this in /sys/kernel/debug/gfs2/fsname/glocks
H: s:EX f:tW e:0 p:22591 [jsvc] gfs2_inplace_reserve_i+0x451/0x69a [gfs2] H: s:EX f:tW e:0 p:22591 [jsvc] gfs2_inplace_reserve_i+0x451/0x69a [gfs2] H: s:EX f:W e:0 p:806 [pdflush] gfs2_write_inode+0x57/0x152 [gfs2] The application running is confluence and has 184 thread. The other nodes work fine but that specific node is having issues obtaining locks when it's time to write? Dave From: [email protected] [mailto:[email protected]] On Behalf Of David Hill Sent: 29 mars 2011 21:00 To: [email protected] Subject: [Linux-cluster] GFS2 cluster node is running very slow Hi guys, We have a GFS2 cluster consisting of 3 nodes. At this point, everything is going smooth. Now, we add a new node with more CPUs with the exact same configuration but all transactions on the mount run very slow. Copying a file to the mount is done at about 25kb/s when on the three other nodes, everything goes smooth at about 7MB/s. CPU on all nodes is idling at some point, all cluster process are kind of sleeping. We've tried the ping_pong.c from apache and it seems to be able to write/read lock files at a decent rate. There's other mounts on the system using the same fc card/fibers/switches/san and all these are also working at a decent speed... I've been reading a good part of the day, and I can't seem to find a solution. [cid:[email protected]] David C. Hill Linux System Administrator - Enterprise 514-490-2000#5655 http://www.ubi.com<http://www.ubi.com/>
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