trusted.io-stats-dump is a virtual (not physical) extended attribute. The code is written in a way that a request to set trusted.io-stats-dump gets bypassed at the io-stats translator layer on the stack and there it gets converted into the action of dumping the statistics into the provided output file path. See io_stats_setxattr() implementation in io-stats.c for more details.
HTH, Krutika On Mon, Nov 13, 2017 at 12:14 PM, Jeevan Patnaik <g1patn...@gmail.com> wrote: > Hi, > > I am trying to understand how the extended attribute trusted.io-stats-dump > works. > > setfattr -n trusted.io-stats-dump -v /tmp/gluster_perf_stats/io-stats-pre.txt > /mnt/gluster/gv0_glusterfs > > I can see that the io-stats-pre.txt is created. But how and what happened > in the background? > > And why I can't I see the attribute with getfattr again? > > getfattr -dm- /mnt/gluster/gv0_glusterfs > # file: mnt/gluster/gv0_glusterfs > trusted.glusterfs.dht.commithash="3480667945" > > Regards, > Jeevan. > > _______________________________________________ > Gluster-users mailing list > Gluster-users@gluster.org > http://lists.gluster.org/mailman/listinfo/gluster-users >
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