vCloud Usage Meter records operational information in the vCloud Usage Meter log files.

The log files do not contain sensitive information, such as private keys and passwords.

File Location Description
/opt/vmware/cloudusagemetering/var/logs/gw_main.log Contains the login event messages related to the gateway authentication service.
/opt/vmware/cloudusagemetering/platform/log/vmware-um-login.log The main log file for the vmware-um-login service. The owner of this file is the login-service user account. To review the log files, log in as usagemeter by using journalctl.
/opt/vmware/cloudusagemetering/platform/log/vmware-um-journal.log The main log file for the vmware-um-journal service. The owner of this file is the journal-service user account. To review the log files, log in as usagemeter by using journalctl.
/opt/vmware/cloudusagemetering/platform/log/first-boot.log Contains the initialization log information about the vCloud Usage Meter platform components, such as login and journal services. You can use the information to troubleshoot problems with the vCloud Usage Meter appliance deployment.
/opt/vmware/cloudusagemetering/var/logs/metered-instance-name_main.log Contains information and event messages about the metered instance.

The vccol_main.log file contains the information and event messages about the vCenter Server instance and the vCenter add-on components, like Site Recovery Manager and vSAN.

/opt/vmware/cloudusagemetering/var/logs/metered-instance-name_error.log Contains the log error messages about the metered instances.
/opt/vmware/cloudusagemetering/var/logs/dss_main.log Contains the information about the archives, rotation, and upload of product consumption data to VMware Cloud.
/opt/vmware/cloudusagemetering/var/nginx/logs/error.log Contains log errors that occurred during the login to the vCloud Usage Meter Web interface.
/opt/vmware/etc/isv/firstboot Contains the event messages about the first boot of the vCloud Usage Meter 4.6 appliance.
/opt/vmware/etc/isv/subsequentboot Contains the event messages about the subsequent boots of the vCloud Usage Meter 4.6 appliance.
/opt/vmware/var/log/um-upgrade.log Contains the vCloud Usage Meter upgrade event messages.
/opt/vmware/cloudusagemetering/var/logs/nats-server.log Contains the log error messages about the NATS server.