weizhouapache commented on issue #7653:
URL: https://github.com/apache/cloudstack/issues/7653#issuecomment-1598993171
> Is there perhaps a certain log that can be traced that logs the process of
entries being added to the `/etc/hosts` file? That would be the only way I
would be able to provide the actual error being triggered.
@whitetiger264
you can check /var/log/cloud.log if there are some errors
when vm is deleted, there should be logs like
```
2023-06-20 15:10:25,590 INFO Attempting to delete entries from
dnsmasq.leases file for VMs which are not on dhcphosts file
2023-06-20 15:10:25,590 INFO dhcp_release $(ip route get 10.0.100.105 |
grep eth | head -1 | awk '{print $3}') 10.0.100.105 1e:00:83:00:00:2d
2023-06-20 15:10:25,590 INFO Executing: dhcp_release $(ip route get
10.0.100.105 | grep eth | head -1 | awk '{print $3}') 10.0.100.105
1e:00:83:00:00:2d
2023-06-20 15:10:25,609 INFO Deleted 1 entries from dnsmasq.leases file
2023-06-20 15:10:25,609 INFO Wrote edited file /etc/hosts
2023-06-20 15:10:25,609 INFO Updated file in-cache configuration
2023-06-20 15:10:25,609 INFO Updated hosts file
```
when vm is created
```
2023-06-20 15:10:59,634 INFO update_config.py :: Processing incoming
file => vm_dhcp_entry.json.75a5c3d8-7f85-4160-aa0b-047d3c253aaf
2023-06-20 15:10:59,635 INFO Processing JSON file
vm_dhcp_entry.json.75a5c3d8-7f85-4160-aa0b-047d3c253aaf
2023-06-20 15:10:59,635 INFO Continuing with the processing of file
'/var/cache/cloud/vm_dhcp_entry.json.75a5c3d8-7f85-4160-aa0b-047d3c253aaf'
2023-06-20 15:10:59,636 INFO Command of type dhcpentry received
...
2023-06-20 15:10:59,744 INFO Attempting to delete entries from
dnsmasq.leases file for VMs which are not on dhcphosts file
2023-06-20 15:10:59,745 INFO Deleted 0 entries from dnsmasq.leases file
2023-06-20 15:10:59,745 INFO Wrote edited file /etc/hosts
2023-06-20 15:10:59,745 INFO Updated file in-cache configuration
2023-06-20 15:10:59,746 INFO Updated hosts file
...
```
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