Did another test with same scenario but I was wandering about deep-scrub.
So after corrupted CEPH PG I tried to strace
First strace with no error detection
# ceph pg deep-scrub 0.1e
7f0492f94700 0 log_channel(cluster) log [INF] : 0.1e deep-scrub starts
7f049078f700 0 log_channel(cluster) log [INF] : 0.1e deep-scrub ok
# strace -e open,access -p 18756 -ff
Process 18756 attached with 85 threads
[pid 18812] open("/proc/loadavg", O_RDONLY) = 54
[pid 18812] open("/proc/loadavg", O_RDONLY) = 54
[pid 18812] open("/proc/loadavg", O_RDONLY) = 54
[pid 18812] open("/proc/loadavg", O_RDONLY) = 54
[pid 18768] open("/proc/loadavg", O_RDONLY) = 54
[pid 18768] open("/proc/loadavg", O_RDONLY) = 54
[pid 18768] open("/proc/loadavg", O_RDONLY) = 54
[pid 18812] open("/proc/loadavg", O_RDONLY) = 54
[pid 18768] open("/proc/loadavg", O_RDONLY) = 54
[pid 18812] open("/proc/loadavg", O_RDONLY) = 54
[pid 18812] open("/proc/loadavg", O_RDONLY) = 54
[pid 18768] open("/proc/loadavg", O_RDONLY) = 54
After restarting osd
# ceph pg deep-scrub 0.1e
7f0492f94700 0 log_channel(cluster) log [INF] : 0.1e deep-scrub starts
7f0492f94700 -1 log_channel(cluster) log [ERR] : 0.1e shard 0: soid
0/227e76de/rb.0.107a.2ae8944a.000000000000/head data_digest 0x80c0517f != best
guess data_digest 0x7b027e29 from auth shard 1, missing attr _, missing attr
snapset
7f0492f94700 -1 log_channel(cluster) log [ERR] : 0.1e deep-scrub 0 missing, 1
inconsistent objects
7f0492f94700 -1 log_channel(cluster) log [ERR] : 0.1e deep-scrub 1 errors
7f0492f94700 0 log_channel(cluster) log [INF] : 0.1e repair starts
7f0492f94700 -1 log_channel(cluster) log [ERR] : 0.1e shard 0: soid
0/227e76de/rb.0.107a.2ae8944a.000000000000/head data_digest 0x80c0517f != best
guess data_digest 0x7b027e29 from auth shard 1, missing attr _, missing attr
snapset
7f0492f94700 -1 log_channel(cluster) log [ERR] : 0.1e repair 0 missing, 1
inconsistent objects
7f0492f94700 -1 log_channel(cluster) log [ERR] : 0.1e repair 1 errors, 1 fixed
# strace -e open,access -p 23471 -ff
Process 23471 attached with 81 threads
[pid 23527] open("/proc/loadavg", O_RDONLY) = 25
[pid 23527] open("/proc/loadavg", O_RDONLY) = 25
[pid 23483] open("/proc/loadavg", O_RDONLY) = 25
[pid 23514]
open("/var/lib/ceph/osd/nmz-0/current/0.1e_head/rb.0.107a.2ae8944a.000000000007__head_85D5649E__0",
O_RDWR) = 25
[pid 23514]
open("/var/lib/ceph/osd/nmz-0/current/0.1e_head/rb.0.107a.2ae8944a.000000000041__head_821CF99E__0",
O_RDWR) = 92
[pid 23514]
open("/var/lib/ceph/osd/nmz-0/current/0.1e_head/rb.0.107a.2ae8944a.00000000000b__head_C5B1415E__0",
O_RDWR) = 93
[pid 23514]
open("/var/lib/ceph/osd/nmz-0/current/0.1e_head/rb.0.107a.2ae8944a.000000000000__head_227E76DE__0",
O_RDWR) = 94
[pid 23527] open("/proc/loadavg", O_RDONLY) = 95
[pid 23483] open("/proc/loadavg", O_RDONLY) = 95
[pid 23527] open("/proc/loadavg", O_RDONLY) = 95
So why in the firs deep-scrub OSD did nothing with the 0.1e PG ?
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