Batch Processing Scheduler and Monitor

The Scheduler is a process automation engine for the ImageMaster back end, which controls bulk import and export processes. A workflow is defined via a configuration file and processed by the Scheduler. During the runtime of a workflow, jobs are generated, which handle different pre- and post-processing steps via scripts and tools1 The tools that can be used in these processes, such as format converters, are not in the scope of this documentation. that must be accessible in the Pre-Processing environment.

The Scheduler provides a web-based monitoring interface based on REST (see Monitoring Web Interface below) and a command line monitoring tool (see chapter Command Line Monitor), both of which provide status information with live updates on the current job states, which are tracked in a database (see chapter Workflow transitions and job status).

Based on the configuration options (see chapter Configuration), the web interface URLs are of the following structure:

• https://<MonitoringHost>:<MonitoringPort>/monitor/

• https://<MonitoringHost>:<MonitoringPort>/metrics/

Whereas the monitoring interface is the main control interface, the metrics provide low-level system information for analysis and advanced troubleshooting.

The meanings of the different output values of the monitoring web interface are summarized below:

Output Parameter	Description
ID	Internal ID based on a sequential counter
Spoolname	Spool name that reflects a process
Generation	Generation number that reflects a set of files and data that are processed together
Attempt	An attempt number
State	Number of the process phase
Type	Process phase, e.g. “Initialize” or “Archiving” (also see Scheduler – workflow transitions)
Status	Job state, e.g. “Waiting”, “Error” or “Pause” (also see Scheduler – job states), or any newly introduced status like: “Disabled” (supported since coldscheduler assembly 9.11.1.1)
Timestamp	Date and time when the process phase has been triggered Field offers the possibility to schedule the process.
Comment	Description of the spool
Table 80: Monitoring information