Thoth Graph Refresh Job

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A job for scheduling solver to resolve dependency graphs and package-analyzer to gather digests and ABI of new packages or packages not analyzed yet.

Running the job locally

You can run this job locally. Run a faust consumer and then run the faust producer with help of app.sh. The steps to run the consumer is well documented here - link <https://github.com/thoth-station/messaging/#development-and-testing>_. You can run the producer as - faust -A producer main

Notes on configuring producer.

The producer currently produces three types of messages i.e. solver, revsolver and unanalyzed-si messages. These can be disabled by passing the respective env variables -

• THOTH_GRAPH_REFRESH_SOLVER=0
• THOTH_GRAPH_REFRESH_REVSOLVER=0
• THOTH_GRAPH_REFRESH_SECURITY=0
• THOTH_GRAPH_REFRESH_COUNT= (This restricts the number of messages per solver for solver messages and the total number of messages generated for security and revsolver.)

Insights to graph-refresh job

The job is run periodically as OpenShift's CronJob. It can be also triggered automatically by Thoth's monitoring system when there is no workload happening in Thoth's middletier namespace.

.. note::

• graph-refresh job is run in Thoth's frontend namespace
• kafka producer ensures that the messages to schedule solvers and reverse solvers(revsolvers) are sent to the kafka broker

Packages which are not resolved yet might be coming from:

• user requests on advises for software stacks
• user requests for provenance checks
• container image scans
• explicitly registering Python packages to Thoth on Management API endpoint