I want to know what is the jenkins workflow in the following scenario.
Scenario 1:
Let's say a build job takes 30 minutes to complete and in the meantime the developers submit commits 1, 2 and 3 in the 1st minute and then commits 4, 5 are submitted in the 15th minute. Will jenkins create 2 separate build jobs in the queue if the polling frequency for SCM change is 1 minute? Or will it combine all the 5 commits into a single build job?
Scenario 2:
Also, what will happen if the quiet period is set to 5 minutes with SCM polling frequency set to 1 minute, and the long running build job is running and in the meantime 5 commits come at 1st minute, 4th minute, 11th minute, 15th minute and 16th minute after the previous build job was initiated? Will it still add two build jobs to the queue? Or will it combine these 5 commits into a single build?
If polling every minute, in scenario #1, Jenkins will start two separate jobs, one for commits 1, 2, and 3, and a second for commits 4 and 5.
For scenario #2, Jenkins will also create two jobs if the quiet period is 5 minutes, based on your example.
There are a few solutions that help address the problem of new and old builds running concurrently. One option is to use the Milestone Pipeline plugin to automatically abort multiple concurrent jobs running, once one of them has reached a milestone.
The second is that some SCM plugins, such as the GitHub plugin, support a build trigger Cancel build on update feature, that will automatically stop running jobs when a new job is triggered via an update.
A third option is to use a Groovy script that executes as part of the build, and detects running jobs for older commits and aborts them.
Related
Is there a possible to prevent the full jenkins job from running, that is periodically scheduled; if there is no SCM changes since the last build.
For example,
There is a daily night build, to create a build. The completion of this job triggers(upstream project) the automation testing job for that build.
I would like to be able to have two things
Stop the 1st build job, if there is no SCM change since the last job
2nd upstream automation test job runs only if it has not run for 1 week. (after it has been triggered by the 1st Job)
Thanks in advance
The first part is simple, instead of "Build periodically" set to "Poll SCM" with the same schedule. It's exactly what it does: periodically checking for changes and only running the job if there were some.
The second part (triggering another job with a time constraint) is more complicated. One option is "Throttle builds" (to 1 per week) in addition to your usual build triggering scheme. Another one is "Trigger builds remotely (e.g., from scripts)" option and checking whether required conditions are met in some sort of script or service.
For the first
Did you try the poll the SCM every night? If no changes, the Jenkins job wont start.
0 23 * * *
Will run every night at 11 p.m
for the second
use the following plugin : https://wiki.jenkins.io/display/JENKINS/Run+Condition+Plugin
We have a node with heavy time nightly builds. We are interested in way to stop the build and clean the queue every morning some time before team start working. All night there are a couple of builds which can have a different time to build and different results. But before the office start to work every morning we want to cancel all active jobs and clean the queue automaticaly at speicifed time for specified jobs.
I have Continuous Integration Set up in Jenkins which is Triggered every time there is Code change, However if the change is done Frequently then the Test Cases from 2 Builds are stacking up. Is there a way to Cancel/Stop the Previous Builds Test Cases from Running, and just Continue with the latest Build
Try to use the 'Quiet Period' option. This is available from the 'Advanced' section of 'Configure'.
Here, you can specify how many seconds Jenkins should wait before actually starting its task after a commit has been made. So, if you provide 30 minutes (30*60 = 1800) as the quiet period, and you have made a commit at 8PM, Jenkins would wait till 8:30 PM before starting its task. In the meantime, if you make 2-3 more commits, they will be stacked together and considered during the 8:30 PM run.
Hope this helps
I have 2 build definitions setup in TFS (Microsoft Team Foundation Server) 2013. One build runs and deploys every time a change happens in my main branch. The other build is a rolling build, and is triggered at most ever 30 minutes upon changes in my main branch.
In the scenario where the second build hasn't been run in the last 30 minutes at the time of a code commit, both builds get triggered at the same time. I'd like for the first build to be queued first, and the rolling build to be queued second. Right now, the second build goes first, presumably because either the build definition name alphabetically comes first, or the build definition itself was created in the system first.
How is build queue order determined in this scenario, and what can be done to control this order?
When I check-in a file, the TFS CI trigger waits very little and starts the build. The problem is that I may have 10-30 files to check-in, and I would like the TFS to wait at least 5 minutes after my last file checked in before it starts a new CI build. In Cruise-Control I had a "modificationDelaySeconds" property where I could set the minimum amount of seconds to wait after the last check-in. How do I do this in TFS (2012)?
The closest alternative in TFS is to define Rolling Builds (also known as Batched-CI-builds).
Change the build trigger from Continuous Integration to Rolling Builds. This way, the build waits till the last build has finished; you can also configure that you do not want to build more often than every 5 minutes.