[OpenAFS] accessing R/O volume becomes slow
Wed, 26 Nov 2014 10:51:00 +0100
this is on Linux 3.14.8 x86_64, and OpenAFS 1.6.9. The machine is
running normally for several months, and then accessing a specific R/O
volume (e.g. ls -lR <large_volume>) becomes slow. Accessing the R/W
version of this volume works normally. Accessing other R/O volumes,
which have the same size and number of files, works normally. Accessing
the R/O version of the problem volume from other clients works normally.
The command "fs flushall" does not solve the problem. The (second) "ls
-lR" command needs 10 seconds on the R/O, and 2 seconds on the R/W
version of this volume.
Accessing the R/O version from other fileservers (using fs
setserverprefs) does not change anything.
Checking the machine I see more than 5 million of afs_inode_cache slab
entries. Is this normal? Any hint how to proceed?