Hi, I checked the FD information with the command "ls -l /proc/25977/fd" // here 25977 is Qemu process. I found that the creation timestamp of the FD was not changed, but the socket information to which the FD was linked was changed. So, I guess the FD is reused when establishing new tcp connection.
[image: image.png] On Tue, 20 Aug 2019 at 04:11, Eliza <e...@chinabuckets.com> wrote: > Hi, > > on 2019/8/19 16:10, fengyd wrote: > > I think when reading/writing to volume/image, tcp connection needs to be > > established which needs FD, then the FD count may increase. > > But after reading/writing, why the FD count doesn't descrease? > > The tcp may be long connections. > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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