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This The release directory usually contains just three releasesThis page is to document the release procedure for Pig. Pig is a fairly young Apache project. Its release process is work in progress and is modeled from Hadoop Release Procedure.

...

  1. Send email to dev@pig.apache.org to notify that you about to branch the tree and ask to hold off any commits till this is finished.
  2. Update CHANGES.txt to include the release version and date (use Unreleased for the date if it is unknown) and remove Trunk (unreleased changes). Below is the example of the top of the CHANGES.txt file after the update:

    Code Block
    
    Pig Change Log
    
    Release 0.1.1 - Unreleased
    
    INCOMPATIBLE CHANGES
    
    NEW FEATURES
    
    IMPROVEMENTS
    PIG-253: integration with hadoop-18
    
    BUG FIXES
    PIG-342: Fix DistinctDataBag to recalculate size after it has spilled. (bdimcheff via gates)
    
  3. Edit src/docs/src/documentation/content/xdocs/site.xml. In the external reference for api where the link contains the previous version number change this string to the correct version number.
  4. Commit these changes to trunk:

    Code Block
    
    svn commit -m "Preparing for release X.Y.Z"
    
  5. Create a branch for the release series:

    Code Block
    
    svn copy https://svn.apache.org/repos/asf/pig/trunk \
    https://svn.apache.org/repos/asf/pig/branches/branch-X.Y -m "Branching for X.Y releases"
    
  6. Update CHANGES.txt to add back in Trunk (unreleased changes). Top of the CHANGES.txt should look like this now:

    Code Block
    
    Pig Change Log
    
    Trunk (unreleased changes)
    
      INCOMPATIBLE CHANGES
    
      IMPROVEMENTS
    
      OPTIMIZATIONS
    
      BUG FIXES
    
    Release 0.1.1 - Unreleased
    ....
    
  7. Update the default version in build.xml on trunk to X.(Y+1).0-dev.
  8. Commit these changes to trunk:

    Code Block
    
    svn commit -m "Preparing for X.(Y+1).0 development"
    

Updating Release Branch

The steps in this section are needed for all the releases (major, minor, and patches).

  1. Check out the branch with:

    Code Block
    
    svn co https://svn.apache.org/repos/asf/pig/branches/branch-X.Y
    
  2. Run rat report and make sure that all files that can have apache license agreement. Save this rat report.

    Code Block
    
    ant releaseaudit
    
  3. For patches, update CHANGES.txt to include the release version and date and update site.xml with the new version. See #2 and #3 from Create Creating Release Branch section.
  4. Update RELEASE_NOTES.txt for this release:
    1. Make sure to change all of the version number references to the current version number.
    2. Note highlights for this release. CHANGES.txt is a great place to find these.
    3. Note incompatibilities for this release. These should be listed under INCOMPATIBLE CHANGES in CHANGES.txt.
  5. Update the version number in in build.xml to  to be X.Y.N-SNAPSHOT, where N is one greater than the release being made.
  6. Commit

    these

    this changes:

    Code Block
    
    svn commit -m "Preparing for release X.Y.Z"
    
  7. Tag the release candidate:

    Code Block
    
    svn copy https://svn.apache.org/repos/asf/pig/branches/branch-X.Y \
    https://svn.apache.org/repos/asf/pig/tags/release-X.Y.Z-rcR -m "Pig X.Y.Z-rcR release."
    

     

    Building

  1. Build and run unit tests:

    Code Block
    
    ant clean
    ant jar test
    
  2. Check that contrib and tutorial directories compile and tests pass:

    Code Block
    
    cd contrib/piggybank/zebrajava
    ant
    ant test
    cd ../..
    cd contrib/piggybank/java/../tutorial
    ant
    ant test
    cd ../../../tutorial
    ant
    
  3. Build

    Build

    the source release and save the src.tar.gz artifact:

    Code Block
    
    ant -Dversion=X.Y.Z src-release
    
  4. Test the source tar file by unpacking the release and
    1. building pig.jar: ant
    2. building and running tutorial

      Code Block
      
      cd tutorial
      ant
      
      cd ..
    3. build piggybank

      Code Block
      
      cd contrib/piggybank/java
      ant
      ant test
      
      cd ../../..
    4. running unit tests ant test-commit
  5. Build the convenience artifacts:

    Code Block
    
    ant clean
    ant test
    ant clean
    ant jar
    cd contrib/zebra
    ant
    cd ../..
    cd contrib/piggybank/java
    ant
    cd ../../..
    ant -Dversion=X.Y.Z -Dforrest.home=<Forrest installation dir>  tar
    # TODO: fix deb and rpm targets to use version (not pig.version) like tar does
    ant -Dpig.version=-h12
  6. Generate the MD5 checksum of the release artifact and convenience binaries:

    Code Block
    cd build
    md5sum pig-X.Y.Z-src.tar.gz > pig-X.Y.Z -Dforrest.home=<Forrest installation dir>  rpm (on a Fedora/Redhat system)
    ant -Dversion=src.tar.gz.md5
    md5sum pig-X.Y.Z.tar.gz > pig-Dpig.version=X.Y.Z -Dforrest.home=<Forrest installation dir>  deb (on a Ubuntu/Debian system)
    
  7. Generate the MD5 checksum of the release artifact and convenience binaries:
    Code Block
    
    cd build
    md5sum pig-X.Y.Z-src.tar.gz > pig-X.Y.Z-src.tar.gz.md5
    md5sum pig-X.Y.Z.tar.gz > pig-X.Y.Z.tar.gz.md5
    md5sum pig-X.Y.Z-1.i386.rpm > pig-X.Y.Z-1.i386.rpm.md5
    md5sum pig-X.Y.Z-1.i386.deb > md5sum pig-X.Y.Z-1.i386.deb.md5
    
  8. .tar.gz.md5
    
  9. If If you do not have a gpg key pair, do the following steps:
    1. Generating key pair using the following command. You can simply accept all default settings and give your name, email and Passphase.

      Code Block
      
      gpg --gen-key
      
    2. Export your public key.

      Code Block
      
      gpg --armor --output pubkey.txt --export 'Your Name'
      
    3. Open pubkey.txt, copy the full text and append it to the following files by pasting, then commit these changes:

      Code Block
      
      https://svn.apache.org/repos/asf/pig/branches/branch-X.Y.Z/KEYS
      https://svn.apache.org/repos/asf/pig/trunk/KEYS
      
    4. Upload updated KEYS to Apache.

      Code Block
      
      scp KEYS people.apache.org:/www/www.apache.org/dist/pig/KEYS
      
    5. Export your private key, keep it with you.

      Code Block
      
      gpg --export-secret-key -a "Your Name" > private.key
      
  10. Sign the release artifact only (see Step-By-Step Guide to Mirroring Releases for more information).

    Code Block
    
    gpg --armor --output pig-X.Y.Z-src.tar.gz.asc --detach-sig pig-X.Y.Z-src.tar.gz
    
    
  11. Verify gpg signature.

    Code Block
    
    gpg --import KEYS  (if necessarily)
    gpg --verify pig-X.Y.Z-src.tar.gz.asc pig-X.Y.Z-src.tar.gz
    
  12. Copy release artifact, convenience binaries, release notes and the rat report to a public place (usually into public_html in your home directory):

    Code Block
    
    ssh people.apache.org mkdir public_html/pig-X.Y.Z-candidate-0rcR
    scp -p pig-X.Y.Z* people.apache.org:public_html/pig-X.Y.Z-candidate-0rcR
    cd ..
    scp RELEASE_NOTES.txt people.apache.org:public_html/pig-X.Y.Z-candidate-0rcR
    scp <rat_report> people.apache.org:public_html/pig-X.Y.Z-candidate-0rcR
    
  13. Push proposed release to Maven staging area
    1. Create file ~/.m2/settings.xml with following contents (NOTE: It is highly recommended to use Maven's password encryption capabilities for your passwords.):

      Code Block
      
      <settings>
        <servers>
          <server>
            <id>apache.releases.https</id>
            <username>your apache id</username>
            <password>your apache password</password>
          </server>
          <server>
            <id>apache.snapshots.https</id>
            <username>your apache id</username>
            <password>your apache password</password>
          </server>
          <server>
            <id>apache.staging.https</id>
            <username>your apache id</username>
            <password>your apache password</password>
          </server>
        </servers>
      
        <profiles>
          <profile>
            <id>apache-release</id>
            <properties>
              <gpg.passphrase>your GPG password</gpg.passphrase>
            </properties>
          </profile>
        </profiles>
      </settings>
      
    2. Run ant command ant mvn-deploy to publish Pig artifacts to the apache snapshot repository.
    3. Run ant command ant –Drepo=staging –Dversion=X.Y.Z mvn-deploy to publish Pig artifacts to the apache staging repository.
  14. Call a release vote. The initial email should be sent to dev@pig.apache.org. Here is a sample of email:

    Code Block
    
    From: Olga Natkovich [mailto:olgan@yahoo-inc.com] 
    Sent: Tuesday, November 25, 2008 3:59 PM
    To: dev@pig.apache.org
    Subject: [VOTE] Release Pig 0.1.1 (candidate 0)
    
    Hi,
    
    I have created a candidate build for Pig 0.1.1. This release is almost identical to Pig 0.1.0 with a couple of exceptions:
    
    (1) It is integrated with hadoop 18
    (2) It has one small bug fix (PIG-253)
    (3) Several UDF were added to piggybank - pig's UDF repository
    
    Keys used to sign the release are available at http://svn.apache.org/viewvc/pig/trunk/KEYS?view=markup.
    
    Please download, test, and try it out:
    
    http://people.apache.org/~olga/pig-0.1.1-candidate-0rc0
    
    Release notes and the rat report are available from the same location.
    
    Should we release this? Vote closes on Wednesday, December 3rd.
    
    Olga
    

...

Once three PMC members have voted for a release and a majority vote to release and the required 3 days have passed, it may be published.

  1. Tag the release:

    Code Block
    
    svn move https://svn.apache.org/repos/asf/pig/tags/release-X.Y.Z-rcR \
    https://svn.apache.org/repos/asf/pig/tags/release-X.Y.Z -m "Pig X.Y.Z "Pig X.Y.Z release."release."
    
  2. Checkout Pig distribution svn.

    Code Block
    svn co https://dist.apache.org/repos/dist/release/pig pig-dist
    
  3. Copy release files to the distribution directory

    and make them writable by the pig group

    add them to svn.

    Code Block
    
    ssh people.apache.orgcd pig-dist
    cp -pr public_html~/release/pig-X.Y.Z-candidate-0 /www/www.apache.org/dist/pig/pig-X.Y.Z
    
    cd /www/www.apache.org/dist/pig
    chgrp -R pig pig-X.Y.Z
    chmod -R g+wsvn add pig-X.Y.Z
  4. The release directory should only contain the current releases, usually one or two (one is previous maintenance release, one is the most recent version release), with a link named 'latest' to the most recent version.

    Code Block
    svn rm pig-A.B.C
    svn rm latest
    link -s pig-X.Y.Z latest
    
    The release directory usually contains just two releases, the most recent from two branches, with a link named 'stable' to the most recent recommended version.
  5. Commit .the distribution artifacts changes

    Code Block
    svn commit --message "Pig X.Y.Z Release"
    
  6. Check if svn changes propagates to the staging directory

    Code Block
    Code Block
    
    ssh people.apache.org
    cd /www/www.apache.org/dist/pig
    rm -rf pig-A.B.C; rm stable
    ln -s pig-A.B.D stable
    

    After several minutes, you should see your distribution changes here.

  7. Push Maven release from staging to production
    1. Go to https://repository.apache.org/index.html#view-repositories;staging~browsestorage
    2. Log in, using your Apache LDAP credentials. The sign in link is in the upper right hand corner.
    3. In the frame on the left side of the page, select "Staging Repositories", you should now see a list of artifacts in the main frame.
    4. Select the appropriate artifacts for this release and click "Close" on the bar above the list of artifacts.
    5. Select the appropriate artifacts for this release and click "Release" on the bar above the list of artifacts.
  8. Wait 24 hours for release to propagate to mirrors.
  9. Prepare to edit the website.

    Code Block
    
    svn co https://svn.apache.org/repos/asf/pig/site
    
  10. Update the front page news in author/src/documentation/content/xdocs/index.xml.
  11. Update the release news in author/src/documentation/content/xdocs/releases.xml.
  12. Update the documentation links in author/src/documentation/content/xdocs/site.xml
  13. Copy in the release specific documentation

    Code Block
    
        cdmkdir publish
        mkdir /docs/rX.Y.Z
        cp -pr <releasedir>/docs/* publish/docs/rX.Y.Z/
        svn add publish/docs/rX.Y.Z
    
  14. Regenerate the site, review it and commit in HowToDocument#UpdatingthePigSiteDocumentation.
  15. Wait until you see your changes reflected on the Apache web site. This might take a few minutes.
  16. Send announcements to the user and developer lists as well as (dev@pig.apache.org; user@pig.apache.org; announce@apache.org; general@hadoop.apache.org) once the site changes are visible. Note that emails sent to announce@apache.org must be sent from your apache.org email address and you must be subscribed to each of the lists.

    Code Block
    
    [ANNOUNCE] Apache Pig X.Y.Z released
    
    The Pig team is happy to announce the Pig X.Y.Z release. 
    
    Apache Pig provides a high-level data-flow language and execution framework for parallel computation on Hadoop clusters.
    More details about Pig can be found at http://pig.apache.org/.
    
    The highlights of this release are ... The details of the release can be found at http://pig.apache.org/releases.html.
    
  17. In JIRA, mark the release as released.
    1. Goto JIRA and click on Administration tab.
    2. Select the Pig project.
    3. Select Versions.
    4. Select Release for the version you have released.
    5. If a description has not yet been added for the version you are releasing, select Add description and give a brief description of the release.
    6. If the next version does not exist (that is, if you are releasing version 0.x, if version 0.x+1 does not yet exist) create it using the Add box at the top of the page.
  18. In JIRA, mark the issues resolved in this release as closed.
    1. Goto JIRA and click on the "Search for Issues" on "Issues" menu.
    2. In the left hand Edit section, set Project to Pig.
    3. In Status select "Resolved"
    4. In Resolutions select "Fixed"
    5. Click "Search" button
    6. In the next screen, further select fix For select the version you are releasing.
    7. Click on the "Search" button
    8. Select "Tools->Bulk change all XX issues" (near the top right)
    9. Select all the issues and click on "Next"
    10. Select "Transition Issues" radio button and click on "Next"
    11. Select "Close Issue" radio button and click on "Next"
    12. Uncheck the box near the bottom at says "Send mail for this update" lest you spam every Pig developer with a message for every bug resolved in this release. Click "Next".
    13. Click "Confirm". Don't worry if it gives you a HTTP 500 error, it still does the transitions.
  19. Update jdiff for next release (step 16 to 19).

    Code Block
    
       svn co https://svn.apache.org/repos/asf/pig/trunk
    
  20. Open build.xml. Change this line:

    Code Block
    
    <property name="jdiff.stable" value="X.Y-1.Z"/>
    To
    <property name="jdiff.stable" value="X.Y.Z"/>
    
  21. Copy jdiff comparison base to trunk

    Code Block
    
    cp {releasedir}/lib}/src/docs/jdiff/pig_X.Y.Z.xml src/docs/jdiff
    
  22. Code Block
    svn add src/docs/jdiff/pig_X.Y.Z.xml lib/jdiff
    
    Code Block
    svn addremove libsrc/docs/jdiff/pig_X.Y.Z.xml
    svn remove lib/jdiff/pig_X.Y-1.Z.xml
    -1.Z.xml
    svn commit -m "Jdiff change for X.Y.Z"
    

    TODO Need to integrate javadoc into this.



Post Release

  1. Update the version number in build.xml in branch to be X.Y.N-SNAPSHOT, where N is one greater than the release being made.
  2. Commit these changes:
Code Block
svn commit -m "

...

Preparing for X.Y.

...

N release development"

...