Hi, see the comments inline
On Fri, Aug 21, 2020 at 6:44 AM Computerisms Corporation < b...@computerisms.ca> wrote: > Hi List, > > I am still struggling with my setup. One server is working reasonably > well for serving websites, but serving sites from the 2nd server is > still using excessive amounts of cpu; a bit of which is gluster, but > most of which is apache. > > Gluster docs mentions client-side-profiling: > > > https://gluster.readthedocs.io/en/latest/Administrator%20Guide/Performance%20Testing/#client-side-profiling > > specifically: > > "In short, use client-side profiling for understanding "why is my > application unresponsive"?" > > Great, I think this is what I want. instructions are: > > *gluster volume profile your-volume start > *setfattr -n trusted.io-stats-dump -v /tmp/io-stats-pre.txt > /your/mountpoint > *This will generate the specified file on the client > > Okay: > > root@moogle:/usr/src/gluster-profile-analysis-master# gluster vol > profile webisms start > Profile on Volume webisms is already started > root@moogle:/usr/src/gluster-profile-analysis-master# setfattr -n > trusted.io-stats-dump -v /tmp/stats.txt /Computerisms > root@moogle:/usr/src/gluster-profile-analysis-master# ls /tmp/stats.txt > ls: cannot access '/tmp/stats.txt': No such file or directory > > thought for sure I am doing something wrong, so I had a look at the > gvp-client.sh script, and it appears I am doing the command correctly, > there is just no output file. Am I missing something? or is this an > outdated methodology that no longer works? > For security reasons, the value passed cannot represent a full path, so this was changed to only tell the name of a file. The file itself is stored inside /var/run/gluster. If you look there, there should be a file like '-tmp-stats.txt' (replacing '/' by '_') which contains the client profile. Regards, Xavi
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