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@Horneth Horneth released this 12 Mar 23:13
· 2307 commits to develop since this release
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710c193

31 Release Notes

  • Cromwell server
    The Cromwell server source code is now located under server/src. sbt assembly will build the runnable Cromwell JAR in
    server/target/scala-2.12/ with a name like cromwell-<VERSION>.jar.

  • Robustness

    • The rate at which jobs are being started can now be controlled using the system.job-rate-control configuration stanza.
    • A load controller service has been added to allow Cromwell to self-monitor and adjust its load accordingly.
      The load controller is currently a simple on/off switch controlling the job start rate. It gathers metrics from different parts of the system
      to inform its decision to stop the creation of jobs.
      You can find relevant configuration in the services.LoadController section of the cromwell.examples.conf file,
      as well as in the load-control section in reference.conf.
      The load level of the monitored sub-systems are instrumented and can be found under the cromwell.load statsD path.
    • The statsD metrics have been re-shuffled a bit. If you had a dashboard you might find that you need to update it.
      Changes include:
      • Removed artificially inserted "count" and "timing" the path
      • Added a load section
      • Metrics were prefixed twice with cromwell (cromwell.cromwell.my_metric), now they're only prefixed once
      • Added processed and queue metrics under various metrics monitoring the throughput and amount of queued work respectively
      • Added a memory metric representing an estimation of the free memory Cromwell thinks it has left

  • Added a configuration option under docker.hash-lookup.enabled to disable docker hash lookup.
    Disabling it will also disable call caching for jobs with floating docker tags.

  • Rest API

    • Updated the /query response to include the total number of query results returned. See here for more information.

  • Language APIs

    • The WDL library import from Cromwell 30 has split in two and its scala packages have changed.
    • The WDL draft 2 parser is now in cromwell-wdl-model-draft2 and its classes have moved from the wdl4s.parser package to wdl.draft2.parser.
    • The WDL object model is now in cromwell-wdl-model-draft2 and its classes have moved from the wdl package to wdl.draft2.model.
    • The WDL to WOM transform functions are now in cromwell-wdl-transforms-draft2. The functions were removed from their object model classes and are now found in their own objects in wdl.draft2.transforms.wdlom2wom.
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