On 07/23/2015 03:20 PM, Gregory Farnum wrote: > On Thu, Jul 23, 2015 at 1:17 PM, Vedran Furač <vedran.furac@xxxxxxxxx> wrote: >> Hello, >> >> I'm having an issue with nginx writing to cephfs. Often I'm getting: >> >> writev() "/home/ceph/temp/44/94/1/0000119444" failed (4: Interrupted >> system call) while reading upstream >> >> looking with strace, this happens: >> >> ... >> write(65, "e\314\366\36\302"..., 65536) = ? ERESTARTSYS (To be restarted) >> >> It happens after first 4MBs (exactly) are written, subsequent write gets >> ERESTARTSYS (sometimes, but more rarely, it fails after first 32 or >> 64MBs, etc are written). Apparently nginx doesn't expect this and >> doesn't handle it so it cancels writes and deletes this partial file. >> >> Is it possible Ceph cannot find the destination PG fast enough and >> returns ERESTARTSYS? Is there any way to fix this behavior or reduce it? > > That's...odd. Are you using the kernel client or ceph-fuse, and on > which version? Sorry, forgot to mention, it's kernel client, tried both 3.10 and 4.1, but it's the same. Ceph is firefly. I'll also try fuse. Regards, Vedran _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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