proxmox crashed three days ago.
when I type history in the shell, I don't see anything done three days ago. The syslog only shows errors from other proxmox nodes. The syslog ends with the following. This is the last log before start.
```
Apr 12 00:00:56 pve3.rack.cola16 systemd[1]: Starting dpkg-db-backup.service - Daily dpkg database backup service...
Apr 12 00:00:56 pve3.rack.cola16 systemd[1]: Starting logrotate.service - Rotate log files...
Apr 12 00:00:56 pve3.rack.cola16 systemd[1]: dpkg-db-backup.service: Deactivated successfully.
Apr 12 00:00:56 pve3.rack.cola16 systemd[1]: Finished dpkg-db-backup.service - Daily dpkg database backup service.
Apr 12 00:00:56 pve3.rack.cola16 ceph-mgr[2332]: 2024-04-12T00:00:56.620+0900 7f6abaccf6c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mds[2329]: 2024-04-12T00:00:56.620+0900 7f58f0d0c6c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mon[2333]: 2024-04-12T00:00:56.620+0900 7fb0f36596c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mon[2333]: 2024-04-12T00:00:56.620+0900 7fb0f36596c0 -1 mon.pve3@2(peon) e31 *** Got Signal Hangup ***
Apr 12 00:00:56 pve3.rack.cola16 ceph-osd[117181]: 2024-04-12T00:00:56.620+0900 7f18f9cc16c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-osd[117223]: 2024-04-12T00:00:56.620+0900 7fc80e5e26c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mds[2329]: 2024-04-12T00:00:56.668+0900 7f58f0d0c6c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-osd[117223]: 2024-04-12T00:00:56.668+0900 7fc80e5e26c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mon[2333]: 2024-04-12T00:00:56.668+0900 7fb0f36596c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mon[2333]: 2024-04-12T00:00:56.668+0900 7fb0f36596c0 -1 mon.pve3@2(peon) e31 *** Got Signal Hangup ***
Apr 12 00:00:56 pve3.rack.cola16 ceph-mgr[2332]: 2024-04-12T00:00:56.668+0900 7f6abaccf6c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-osd[117181]: 2024-04-12T00:00:56.668+0900 7f18f9cc16c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:57 pve3.rack.cola16 systemd[1]: Reloading pveproxy.service - PVE API Proxy Server...
Apr 12 00:00:57 pve3.rack.cola16 pveproxy[152285]: send HUP to 2816
Apr 12 00:00:57 pve3.rack.cola16 pveproxy[2816]: received signal HUP
Apr 12 00:00:57 pve3.rack.cola16 pveproxy[2816]: server closing
Apr 12 00:00:57 pve3.rack.cola16 pveproxy[2816]: server shutdown (restart)
Apr 12 00:00:57 pve3.rack.cola16 systemd[1]: Reloaded pveproxy.service - PVE API Proxy Server.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Reloading spiceproxy.service - PVE SPICE Proxy Server...
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[152287]: send HUP to 2822
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: received signal HUP
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: server closing
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: server shutdown (restart)
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Reloaded spiceproxy.service - PVE SPICE Proxy Server.
Apr 12 00:00:58 pve3.rack.cola16 pvefw-logger[1649]: received terminate request (signal)
Apr 12 00:00:58 pve3.rack.cola16 pvefw-logger[1649]: stopping pvefw logger
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Stopping pvefw-logger.service - Proxmox VE firewall logger...
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: restarting server
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: starting 1 worker(s)
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: worker 152295 started
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: pvefw-logger.service: Deactivated successfully.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Stopped pvefw-logger.service - Proxmox VE firewall logger.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: pvefw-logger.service: Consumed 2.001s CPU time.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Starting pvefw-logger.service - Proxmox VE firewall logger...
Apr 12 00:00:58 pve3.rack.cola16 pvefw-logger[152298]: starting pvefw logger
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Started pvefw-logger.service - Proxmox VE firewall logger.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: logrotate.service: Deactivated successfully.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Finished logrotate.service - Rotate log files.
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: restarting server
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: starting 3 worker(s)
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: worker 152302 started
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: worker 152303 started
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: worker 152304 started
Apr 12 00:01:02 pve3.rack.cola16 pveproxy[152303]: detected empty handle
Apr 12 00:01:02 pve3.rack.cola16 pveproxy[142793]: detected empty handle
Apr 12 00:01:03 pve3.rack.cola16 spiceproxy[2823]: worker exit
Apr 12 00:01:03 pve3.rack.cola16 spiceproxy[2822]: worker 2823 finished
Apr 12 00:01:03 pve3.rack.cola16 pveproxy[134773]: worker exit
Apr 12 00:01:03 pve3.rack.cola16 pveproxy[2816]: worker 134773 finished
Apr 12 00:01:03 pve3.rack.cola16 pveproxy[2816]: worker 143516 finished
Apr 12 00:01:03 pve3.rack.cola16 pveproxy[2816]: worker 142793 finished
Apr 12 00:01:05 pve3.rack.cola16 pveproxy[152357]: worker exit
Apr 12 00:01:06 pve3.rack.cola16 pveproxy[152358]: worker exit
Apr 12 00:01:22 pve3.rack.cola16 pveproxy[152302]: detected empty handle
Apr 12 00:01:22 pve3.rack.cola16 pveproxy[152303]: detected empty handle
Apr 12 00:01:42 pve3.rack.cola16 pveproxy[152304]: detected empty handle
Apr 12 00:01:42 pve3.rack.cola16 pveproxy[152302]: detected empty handle
Apr 12 00:02:02 pve3.rack.cola16 pveproxy[152303]: detected empty handle
Apr 12 00:02:02 pve3.rack.cola16 pveproxy[152304]: detected empty handle
```
what can I do?
when I type history in the shell, I don't see anything done three days ago. The syslog only shows errors from other proxmox nodes. The syslog ends with the following. This is the last log before start.
```
Apr 12 00:00:56 pve3.rack.cola16 systemd[1]: Starting dpkg-db-backup.service - Daily dpkg database backup service...
Apr 12 00:00:56 pve3.rack.cola16 systemd[1]: Starting logrotate.service - Rotate log files...
Apr 12 00:00:56 pve3.rack.cola16 systemd[1]: dpkg-db-backup.service: Deactivated successfully.
Apr 12 00:00:56 pve3.rack.cola16 systemd[1]: Finished dpkg-db-backup.service - Daily dpkg database backup service.
Apr 12 00:00:56 pve3.rack.cola16 ceph-mgr[2332]: 2024-04-12T00:00:56.620+0900 7f6abaccf6c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mds[2329]: 2024-04-12T00:00:56.620+0900 7f58f0d0c6c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mon[2333]: 2024-04-12T00:00:56.620+0900 7fb0f36596c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mon[2333]: 2024-04-12T00:00:56.620+0900 7fb0f36596c0 -1 mon.pve3@2(peon) e31 *** Got Signal Hangup ***
Apr 12 00:00:56 pve3.rack.cola16 ceph-osd[117181]: 2024-04-12T00:00:56.620+0900 7f18f9cc16c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-osd[117223]: 2024-04-12T00:00:56.620+0900 7fc80e5e26c0 -1 received signal: Hangup from killall -q -1 ceph-mon ceph-mgr ceph-mds ceph-osd ceph-fuse radosgw rbd-mirror cephfs-mirror (PID: 152265) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mds[2329]: 2024-04-12T00:00:56.668+0900 7f58f0d0c6c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-osd[117223]: 2024-04-12T00:00:56.668+0900 7fc80e5e26c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mon[2333]: 2024-04-12T00:00:56.668+0900 7fb0f36596c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-mon[2333]: 2024-04-12T00:00:56.668+0900 7fb0f36596c0 -1 mon.pve3@2(peon) e31 *** Got Signal Hangup ***
Apr 12 00:00:56 pve3.rack.cola16 ceph-mgr[2332]: 2024-04-12T00:00:56.668+0900 7f6abaccf6c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:56 pve3.rack.cola16 ceph-osd[117181]: 2024-04-12T00:00:56.668+0900 7f18f9cc16c0 -1 received signal: Hangup from (PID: 152266) UID: 0
Apr 12 00:00:57 pve3.rack.cola16 systemd[1]: Reloading pveproxy.service - PVE API Proxy Server...
Apr 12 00:00:57 pve3.rack.cola16 pveproxy[152285]: send HUP to 2816
Apr 12 00:00:57 pve3.rack.cola16 pveproxy[2816]: received signal HUP
Apr 12 00:00:57 pve3.rack.cola16 pveproxy[2816]: server closing
Apr 12 00:00:57 pve3.rack.cola16 pveproxy[2816]: server shutdown (restart)
Apr 12 00:00:57 pve3.rack.cola16 systemd[1]: Reloaded pveproxy.service - PVE API Proxy Server.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Reloading spiceproxy.service - PVE SPICE Proxy Server...
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[152287]: send HUP to 2822
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: received signal HUP
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: server closing
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: server shutdown (restart)
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Reloaded spiceproxy.service - PVE SPICE Proxy Server.
Apr 12 00:00:58 pve3.rack.cola16 pvefw-logger[1649]: received terminate request (signal)
Apr 12 00:00:58 pve3.rack.cola16 pvefw-logger[1649]: stopping pvefw logger
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Stopping pvefw-logger.service - Proxmox VE firewall logger...
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: restarting server
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: starting 1 worker(s)
Apr 12 00:00:58 pve3.rack.cola16 spiceproxy[2822]: worker 152295 started
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: pvefw-logger.service: Deactivated successfully.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Stopped pvefw-logger.service - Proxmox VE firewall logger.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: pvefw-logger.service: Consumed 2.001s CPU time.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Starting pvefw-logger.service - Proxmox VE firewall logger...
Apr 12 00:00:58 pve3.rack.cola16 pvefw-logger[152298]: starting pvefw logger
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Started pvefw-logger.service - Proxmox VE firewall logger.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: logrotate.service: Deactivated successfully.
Apr 12 00:00:58 pve3.rack.cola16 systemd[1]: Finished logrotate.service - Rotate log files.
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: restarting server
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: starting 3 worker(s)
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: worker 152302 started
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: worker 152303 started
Apr 12 00:00:58 pve3.rack.cola16 pveproxy[2816]: worker 152304 started
Apr 12 00:01:02 pve3.rack.cola16 pveproxy[152303]: detected empty handle
Apr 12 00:01:02 pve3.rack.cola16 pveproxy[142793]: detected empty handle
Apr 12 00:01:03 pve3.rack.cola16 spiceproxy[2823]: worker exit
Apr 12 00:01:03 pve3.rack.cola16 spiceproxy[2822]: worker 2823 finished
Apr 12 00:01:03 pve3.rack.cola16 pveproxy[134773]: worker exit
Apr 12 00:01:03 pve3.rack.cola16 pveproxy[2816]: worker 134773 finished
Apr 12 00:01:03 pve3.rack.cola16 pveproxy[2816]: worker 143516 finished
Apr 12 00:01:03 pve3.rack.cola16 pveproxy[2816]: worker 142793 finished
Apr 12 00:01:05 pve3.rack.cola16 pveproxy[152357]: worker exit
Apr 12 00:01:06 pve3.rack.cola16 pveproxy[152358]: worker exit
Apr 12 00:01:22 pve3.rack.cola16 pveproxy[152302]: detected empty handle
Apr 12 00:01:22 pve3.rack.cola16 pveproxy[152303]: detected empty handle
Apr 12 00:01:42 pve3.rack.cola16 pveproxy[152304]: detected empty handle
Apr 12 00:01:42 pve3.rack.cola16 pveproxy[152302]: detected empty handle
Apr 12 00:02:02 pve3.rack.cola16 pveproxy[152303]: detected empty handle
Apr 12 00:02:02 pve3.rack.cola16 pveproxy[152304]: detected empty handle
```
what can I do?