# tail -f /var/log/ceph-osd.x.log
.......
2018-10-29 15:31:28.541363 7fd767d5e700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ba68700' had timed out after 15
2018-10-29 15:31:28.541364 7fd767d5e700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ca6a700' had timed out after 15
2018-10-29 15:31:28.765622 7fd73c1ed700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd748a62700' had timed out after 15
2018-10-29 15:31:28.765624 7fd73c1ed700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74a265700' had timed out after 15
2018-10-29 15:31:28.765625 7fd73c1ed700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ba68700' had timed out after 15
2018-10-29 15:31:28.765626 7fd73c1ed700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ca6a700' had timed out after 15
2018-10-29 15:31:28.765633 7fd73bce8700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd748a62700' had timed out after 15
2018-10-29 15:31:28.765634 7fd73bce8700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74a265700' had timed out after 15
2018-10-29 15:31:28.765635 7fd73bce8700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ba68700' had timed out after 15
2018-10-29 15:31:28.765636 7fd73bce8700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ca6a700' had timed out after 15
2018-10-29 15:31:31.710618 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd748261700' had timed out after 15
2018-10-29 15:31:31.710626 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd748a62700' had timed out after 15
2018-10-29 15:31:31.710627 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74a265700' had timed out after 15
2018-10-29 15:31:31.710628 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ba68700' had timed out after 15
2018-10-29 15:31:31.710629 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ca6a700' had timed out after 15
2018-10-29 15:31:31.710630 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74c269700' had timed out after 15
2018-10-29 15:31:31.710649 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd748261700' had timed out after 15
2018-10-29 15:31:31.710649 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd748a62700' had timed out after 15
2018-10-29 15:31:31.710650 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74a265700' had timed out after 15
2018-10-29 15:31:31.710651 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ba68700' had timed out after 15
2018-10-29 15:31:31.710655 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ca6a700' had timed out after 15
2018-10-29 15:31:31.710656 7fd738fc6700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74c269700' had timed out after 15
2018-10-29 15:31:31.710664 7fd73b48a700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd748261700' had timed out after 15
2018-10-29 15:31:31.710667 7fd73b48a700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd748a62700' had timed out after 15
.........
2018-10-29 15:31:37.100966 7fd72d5f0700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74c269700' had timed out after 15
2018-10-29 15:31:37.347433 7fd75c24d700 1 _created [A,D,3] split completed.
2018-10-29 15:31:37.347940 7fd748a62700 1 heartbeat_map reset_timeout 'OSD::osd_op_tp thread 0x7fd748a62700' had timed out after 15
2018-10-29 15:31:37.348594 7fd74a265700 1 heartbeat_map reset_timeout 'OSD::osd_op_tp thread 0x7fd74a265700' had timed out after 15
2018-10-29 15:31:37.354360 7fd74ba68700 1 heartbeat_map reset_timeout 'OSD::osd_op_tp thread 0x7fd74ba68700' had timed out after 15
2018-10-29 15:31:37.355466 7fd74c269700 1 heartbeat_map reset_timeout 'OSD::osd_op_tp thread 0x7fd74c269700' had timed out after 15
2018-10-29 15:31:37.356635 7fd748261700 1 heartbeat_map reset_timeout 'OSD::osd_op_tp thread 0x7fd748261700' had timed out after 15
2018-10-29 15:31:37.366404 7fd73bce8700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ca6a700' had timed out after 15
2018-10-29 15:31:37.366730 7fd73c1ed700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread 0x7fd74ca6a700' had timed out after 15
2018-10-29 15:31:37.428603 7fd74ca6a700 1 heartbeat_map reset_timeout 'OSD::osd_op_tp thread 0x7fd74ca6a700' had timed out after 15
2018-10-29 15:32:15.117764 7fd75c24d700 1 _created [8,8,8] has 321 objects, starting split.
# ceph --admin-daemon /var/run/ceph/ceph-osd.49.asok config show |grep osd_op_thread
"osd_op_threads": "2",
"osd_op_thread_timeout": "15",
"osd_op_thread_suicide_timeout": "150",
# ceph tell osd.49 injectargs --osd-op-thread-timeout 90
osd_op_thread_timeout = '90' (unchangeable)
# ceph --admin-daemon /var/run/ceph/ceph-osd.49.asok config show |grep osd_op_thread
"osd_op_threads": "2",
"osd_op_thread_timeout": "90",
"osd_op_thread_suicide_timeout": "150",
ceph.conf
.....
[osd]
osd_op_thread_suicide_timeout = 900
