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In case of trouble with the SUSE OpenStack Cloud Monitoring
services, you can study their log files to find the reason. The log files are
also useful if you need to contact your support organization. For storing the
log files, the default installation uses the /var/log
directory on the hosts where the agents or services are installed.
You can use systemd, a system and session manager for
LINUX, and journald, a LINUX logging interface, for
addressing dispersed log files.
The SUSE OpenStack Cloud Monitoring installer automatically
puts all SUSE OpenStack Cloud Monitoring services under the
control of systemd. journald provides a
centralized management solution for the logging of all processes that are
controlled by systemd. The logs are collected and managed
in a so-called journal controlled by the journald daemon.
For details on the systemd and journald
utilities, refer to the
https://documentation.suse.com/sles/12-SP5/single-html/SLES-admin/#part-system.