Check_MK Werk 5783: Introduced background jobs for longer running task

ID: 5783 Title: Introduced background jobs for longer running task Component: WATO Level: 2 Class: New feature Version: 1.5.0i4 A new mechanism has been introduced allowing certain tasks to be run as background processes. Currently the following areas are included <ul> <li>Host rennaming</li> <li>Agent baking (Enterprise Edition)</li> <li>Report generation (Enterprise Edition)</li> </ul> Once a background job is triggered, an overview page provides additional information regarding the progress. You can also stop and delete background jobs, if applicable. Keep in mind that some jobs - in detail host renaming and agent baking - lock certain areas in WATO to prevent further configurations as long the background process is running. Each background has a working directory located in <tt>~/var/check_mk/background_jobs</tt> with a statusfile named <tt>jobstatus.mk</tt>. If the background job generates stdout data it will be shown in the job details page. Job Exceptions are also shown in the details page and, in addition, written to <tt>~/var/log/web.log</tt>. Keep in mind, old background jobs will be automatically removed after 30 days or if the maximum amount of jobs for a job type has been reached. These limits are currently not configurable and hardcoded <ul> <li>Reporting has a limit of 100</li> <li>Host renaming has a limit of 50</li> </ul> This cleanup routine is regularly called through a multisite cronjob.