After several months of use without needing any administration at all, I
think I finally found something to debug.
Attempting to "ls -l" within a directory on CephFS hangs - strace shows its
hanging on lstat():
open("/etc/group", O_RDONLY|O_CLOEXEC) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=1190, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7fc9f780b000
read(4, "root:x:0:\nbin:x:1:bin,daemon\ndae"..., 4096) = 1190
close(4) = 0
munmap(0x7fc9f780b000, 4096) = 0
lstat("sn0546_h264m_1280x720_1872.mp4",
My cluster is healthy, except for the usual "4 requests are blocked > 32
sec"*. *I scanned the logs but don't find indication of an error.
Where should I look next?
Thanks Much,
Blade
(9-node ceph cluster mixed armv7 and x86_64)
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