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Data Engineering/Systems/Cluster/Deploy/Refinery-source

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Refinery-source is the JVM software on the Analytics Cluster using spark or hive UDFs. The source code is in the analytics/refinery/source.

How to deploy with Jenkins (and related steps)

Before starting, please check:

  • Check the latest refinery-source deployed version. This can be done in various ways on the git repository, for instance:
  • The Refinery source commit list and make sure that the has been updated with the latest version and possibly that [maven-release-plugin] has committed the related version bump changes (the last step is optional, it could be triggered manually following the instruction below).
  • Check the current SNAPSHOT version committed in the repo's pom.xml files via git grep SNAPSHOT. The analytics-refinery-maven-release-docker builder (see below) will use the SNAPSHOT version unless told otherwise, not the version present in the (that it is only for tracking purposes).
    • For example, suppose that the current SNAPSHOT version is 0.0.147-SNAPSHOT
    • If you want to simply jump to 0.0.148, then you are good.
    • Otherwise, suppose that you want to jump to 0.1.0.
    • You need to use something like the following to modify the pom.xml files: find -name pom.xml -exec sed -e 's/0.0.147-SNAPSHOT/0.1.0-SNAPSHOT/' -i {} \;
    • Then you'll need to mention this in the alongside with the changes related to the code.
  • Make sure you are logged in to Jenkins to see the pages linked in the steps below.

Have you read the instructions reported above? If so, please keep going, otherwise please read them!

Deploy procedure:

  1. Update the file at the root of the repository with changes that are going to be deployed - commit and merge this change.
  2. Release a new version of refinery-source jars to Maven:
    • Visit analytics-refinery-maven-release-docker builder and click the "Build" button (default parameters shouldn't be changed except if you know what you're doing :).
    • The job should take a few minutes to run, and an email is being sent to the analytics-alert list with whether the job succeeded or failed (it is also indicated on the page used to launch the job if you don't close it).
    • NOTE: it's best to wait a few minutes between the build and the next step.
  3. Now we need to update the symlinks to the latest refinery-source jars in the refinery repository.
    • This can also be done via Jenkins, by going to analytics-refinery-update-jars-docker builder, and setting the RELEASE_VERSION field to the version number of the latest jars released, without the v prefix.
    • Example: v0.0.40 is bad, 0.0.40 is good.
    • Then hit Build.
    • This will send a code-review to gerrit in the refinery repository and send a message to the #wikimedia-analytics IRC channel as well as an email to the analytics-alerts mailing list.
    • Look at the code review generated by Jenkins, it should contain the new jars and updates for the default-jars symlinks.
    • If it looks good (normally, yes :), you can merge it and continue the deployment process.
  4. There are most chances that, having deployed some new/changed java/scala code, you wish to apply it in refinery oozie job(s) or in Airflow.
    1. Considering Airflow jobs:
      • bump up the jar version in the artifact.yaml file in your Airflow dag repository
      • use the correct artifact in your dag
      • deploy your Airflow dag repo
    2. Considering Oozie jobs:

If the maven release job failed (step 2)

First find why looking at job logs, and then skip the version number you were currently deploying. Update the changelog,md with the skipped version and build again!

If you really want to build a specific version, then some extra steps are needed:

  • Remove the git tag of the versions that you don't want (local and remote of course)
  • Update the pom.xml files with the version that you want to build (as mentioned above, the -SNAPSHOT version).
  • Add these info to the (if needed) and merge the change.
  • Drop the release version artifacts that you don't want from archiva.
  • Kick off the build again!


Changing the archiva-ci password

Archiva expires user passwords periodically (every 90 days?). This means we need to update the archiva-ci user's password in Archiva, and also in the Jenkins stored credential.

Log into as the admin user (the password is in the ops pwstore). Go to 'Manage', click on the edit (pencil) button for the archiva-ci and change the password.

Then, log into jenkins and go to the archiva-ci credentials page. Click on the 'Update' link, then click on Change Password, and set the password to the same one you set in Archiva.

How to deploy from the CLI

  • Update the file at the root of the repository whith changes that are going to be deployed.
  • Prepare deployment (change pom.xml files, push to git):
mvn release:prepare
  • Check everything looks Ok:
  • Actually deploy (jar generation and uploads to archiva)
mvn release:perform
  • Download the new version of the jars from archiva (Ambox content.png Warning: git fat uses IDs to manage files, so it is important to use the correct jars.). For convenience, the commonly updated jars are:
  • NOTE: to download, click on the new version you just created, then Artifacts, then copy the link to the jar and update with and download that
  • Copy the updated jars to the correct refinery path (somewhere like <refinery>/artifacts/org/wikimedia/analytics/refinery/)
  • Update the symlinks in refinery/artifacts to the jars you just copied
  • Make sure git fat is installed and configured according to the instructions in the Refinery README
  • git add . && git commit (git fat will do some magic and replace the jar with a one-line id)
  • push for review

Please see the refinery page to deploy the jars and oozie code.