This is because the statistics uses DBUS, and the first ganesha binds
the well-know DBUS address, and the rest cannot bind it.
Daniel
On 6/22/23 10:31, francoise.boudier--- via Support wrote:
Hello,
I meet an issue when collecting the statistics using `ganesha_stats` when several
ganesha servers are started on the same node.
Each of them use its own NFS port, path, export_id and pseudo.
`ganesha_stats` returns the statistics of the first started ganesha server but fails to
collect the statistics of the second one with `Export id not found`.
The rpm in use is nfs-ganesha-utils-4.0-1.el8.x86_64.
Is it a know problem and is it fix in a newer version ?
Thanks for your help
See below an example:
- two ganesha servers are running on a single node.
# ps -ef | grep ganesha
root 2956841 1 0 09:04 ? 00:00:01 ganesha.nfsd -L
/tmp/sbbtestgkhLzj8/ganesha/logfile -f /tmp/sbbtestgkhLzj8/ganesha/ganesha.conf -N
NIV_EVENT -p /tmp/sbbtestgkhLzj8/ganesha/pidfile
root 2957068 1 0 09:04 ? 00:00:00 ganesha.nfsd -L
/tmp/sbbtestZoXOzPM/ganesha/logfile -f /tmp/sbbtestZoXOzPM/ganesha/ganesha.conf -N
NIV_EVENT -p /tmp/sbbtestZoXOzPM/ganesha/pidfile
# df | grep mypath
localhost:/mypath.3714 104806400 35679232 69127168 35%
/tmp/sbbtestgkhLzj8/mount
localhost:/mypath.9019 104806400 35679232 69127168 35%
/tmp/sbbtestZoXOzPM/mount
- Write using each of them
$ dd if=/dev/zero of=//tmp/sbbtestgkhLzj8/mount/fichier bs=1M count=10
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.0257701 s, 407 MB/s
$ dd if=/dev/zero of=//tmp/sbbtestZoXOzPM/mount/fichier bs=1M count=10
10+0 records in
10+0 records out
10485760 bytes (10 MB, 10 MiB) copied, 0.0258967 s, 405 MB/s
- Collect of stats for each of them
# ganesha_stats iov42 3714
EXPORT 3714:
requested transferred total errors
latency
READv42: 0 0 0 0 0
0
WRITEv42: 10485760 10485760 10 0 6141586
0
# ganesha_stats iov42 9019
EXPORT 9019: Export id not found
# ganesha_stats export
Export Stats
Stats collected since: Thu Jun 22 09:04:20 2023814664066 nsecs
Duration: 4897.5012726784 seconds
Export id: 3714
Path: /tmp/sbbtestgkhLzj8/path
NFSv3 stats available: 0
NFSv4.0 stats available: 0
NFSv4.1 stats available: 0
NFSv4.2 stats available: 1
MNT stats available: 0
NLMv4 stats available: 0
RQUOTA stats available: 0
9P stats available: 0
Export id: 0
Path: /
NFSv3 stats available: 0
NFSv4.0 stats available: 0
NFSv4.1 stats available: 0
NFSv4.2 stats available: 1
MNT stats available: 0
NLMv4 stats available: 0
RQUOTA stats available: 0
9P stats available: 0
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