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From Gavin McDonald <ga...@16degrees.com.au>
Subject [JENKINS] [IMPORTANT] - Jenkins Migration and Upgrade (And JDK7 deprecation)
Date Tue, 27 Jun 2017 07:03:13 GMT
ASF Jenkins Master Migration and Upgrade on :-


Location	                                        Local Time	                             
          Time Zone	UTC Offset
Melbourne (Australia - Victoria)	Sunday, 16 July 2017 at 10:00:00 am	AEST	        UTC+10 hours
New York (USA - New York)	        Saturday, 15 July 2017 at 8:00:00 pm	EDT	              
 UTC-4 hours
Corresponding UTC (GMT)	        Sunday, 16 July 2017 at 00:00:00	 	 


Hi All,

A few things are going to happen in just over 2 weeks.

1. Migration of Jenkins to a new host. A Jenkins Master module and yaml have been puppetized
and ready to go.
    What we need to do to migrate the Master away from its current host is turn off the old
service. Perform a final 
    rsync of data and perform the migration tasks. 

    As we intend to preserve history for jobs this will take some time.
    At the same time as doing this migration to a new host, all slave connections will be
updated (see below.)
    I have no current estimate of downtime, but it will run into several hours. We do plan
to run this migration on a 
    Sunday at the lowest part of Jenkins usual usage.

2. Upgrade of Jenkins - Jenkins project released a new LTS release, version 2.60.1. This is
a major release and breaks 
    Jenkins in terms of Maven jobs for JDK 7 in the same way that it happened for Maven and
JDK 6 a few months back.

    The infra team (mainly myself) got quite some feedback on not supplying advance notice
of this breakage. That upgrade 
    however was necessary due to security fixes that required our upgrade.  This email serves
as advance warning of the 
    upcoming upgrade of Jenkins, the downtime due to the migration of the service to a new
host; and notice of the breakage 
    to JDK 7 that the upgrade brings.

    Please familiarise yourself with the Jenkins LTS upgrade notes at [1].
    In particular please note:-

    “…2.60.1 is the first Jenkins LTS release that requires Java 8 to run. If you're using
the Maven Project type, please note that it needs to use a JDK capable of running Jenkins,
i.e. JDK 8 or up. If you configure an older JDK in a Maven Project, Jenkins will attempt to
find a newer JDK and use that automatically. If your SSH Slaves fail to start and you have
the plugin install the JRE to run them, make sure to update SSH Slaves Plugin to at least
version 1.17 (1.20 recommended).
Changes since 2.60:
Fix for NullPointerException while initiating some SSH connections (regression in 2.59). (issue
44120 <https://issues.jenkins-ci.org/browse/JENKINS-44120>)
Notable changes since 2.46.3:
Jenkins (master and agents) now requires Java 8 to run. (issue 27624 <https://issues.jenkins-ci.org/browse/JENKINS-27624>
<>, issue 42709 <https://issues.jenkins-ci.org/browse/JENKINS-42709> <>,
pull 2802 <https://github.com/jenkinsci/jenkins/pull/2802>, announcement blog post <https://jenkins.io/blog/2017/04/10/jenkins-has-upgraded-to-java-8/>)

…”

There are over 30 other enhancements/fixes since 2.46.2 which we currently run so please do
take a note of those.

Recap: In just over 2 weeks, downtime for a migration AND upgrade is planned. 

Please do not rely on Jenkins at all for that weekend if you use it in your release workflow.

Please do take this notice back to your dev lists. 

Any questions or concerns please email back to builds@apache.org <mailto:builds@apache.org>
only. 

Thanks

Gav…

[1] - https://jenkins.io/changelog-stable/
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