Werk #15737: docker_node_info: Fix sporadic UNKN if host is monitored by multiple sites
|Component||Checks & agents|
|Title||<tt>docker_node_info</tt>: Fix sporadic UNKN if host is monitored by multiple sites|
|Date||May 12, 2023|
|Checkmk Edition||Checkmk Raw (CRE)|
|Checkmk Version||2.3.0b1 2.2.0b8 2.1.0p28 2.0.0p36|
|Compatibility||Compatible - no manual interaction needed|
In case a Docker host with installed Docker agent plugin (mk_docker) was monitored by multiple Checkmk sites, the Docker node info service might have sporadically reported UNKN with the following error message:
Plugin exception in section_node_disk_usage: [Errno 2] No such file or directory: '/var/lib/check_mk_agent/mk_docker_df.tmp....' -> '/var/lib/check_mk_agent/mk_docker_df.spool'
To benefit from this werk, users have to re-deploy the Docker agent plugin on affected hosts.