Downstream jobs will run on any agent matching the label they are configured for, with preference given to running on the agent that they most recently ran on *if idle*.
Upstream jobs have no affect - unless they are still running at the time - in which case they may force a *different* agent if they are occupying all available slots. On Sat 18 Mar 2017 at 19:22, Tony P <[email protected]> wrote: > Does this mean I am correct that the default behavior is for downstream > projects to run on any agents that have the same label ? This was perhaps > the big thing I was trying to find out. > > Also our builds are done via "build job: " but I am struggling to find out > how to force it to use a particular agent. > > My plan has been kick off the first downstream project, find out which > agent it used and then force the remaining downstream projects to use that > agent. Try as I may and I tried so many ideas, I can't find out how to > determine what agent that downstream agent used. It seems next to > impossible ? > > Thanks again > > > On Sunday, March 19, 2017 at 12:27:03 AM UTC+13, Stephen Connolly wrote: > > I think you would need to write a plugin that enforces your "same node" > constraint. > > It would not be general utility as eg enough people are doing builds on > ephemeral agents and you'd end up with stuck jobs waiting for a free > executor on the same "ephemeral" node that will never return. > > But I can see it being of utility for some people. Probably a JobProperty > that does the enforcing and some other coordination token to identify which > jobs you need to be on the same node as (plus a timeout if you are stuck > for too long waiting on that node) > > On Sat 18 Mar 2017 at 10:28, Tony P <[email protected]> wrote: > > Hi, > > We have multiple pipelines for which each will run 3+ downstream freestyle > projects. > > This process is defined by an automation tool that creates and initiates > Jenkins builds, so using other methodologies is out :-). The problem I have > is that I need all the freestyle projects to run on the same agent, because > the first couple of projects clone repos and other projects then do the > build or deploy - so obviously it all needs to happen in exactly the same > place. > > I also want to initiate this process using agent/slave labels rather than > agent/slave names as we will have a group of agents to handle the multiple > sometimes duplicate pipeline builds. > > I am beginning to think that even though I am using labels Jenkins will > always run all the downstream projects on the same agent. Trouble is I am > having trouble finding any conclusive documentation that says I am right or > I am wrong - I have spent an awful lot of time in the company of Mr Google > trying to figure this out. If each of the downstream projects could > potentially run on any available agent using the same label then I have a > big problem and my next task is to figure out how to get them to all use > the same agent. > > Can someone tell me whether I am correct that Jenkins will run all > downstream projects on the same agent and/or where do I look for this level > of documentation ? > > Thanks in advance > > -- > You received this message because you are subscribed to the Google Groups > "Jenkins Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > > To view this discussion on the web visit > https://groups.google.com/d/msgid/jenkinsci-users/e806f3a6-02c8-4fbd-b574-d29fb8dee547%40googlegroups.com > <https://groups.google.com/d/msgid/jenkinsci-users/e806f3a6-02c8-4fbd-b574-d29fb8dee547%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > -- > Sent from my phone > > -- > You received this message because you are subscribed to the Google Groups > "Jenkins Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jenkinsci-users/52b89bf8-4615-40cb-affd-51ab29792f00%40googlegroups.com > <https://groups.google.com/d/msgid/jenkinsci-users/52b89bf8-4615-40cb-affd-51ab29792f00%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- Sent from my phone -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/CA%2BnPnMzFi1wJnD7R-BAcQd%2Bj7e9nCAgLQy24e2QGkt9DaXSAng%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
