Hi, coming from non parallel task execution, before configuration cache was a thing, I got some tasks which need some external stuff running (which I do spawn and shutdown via dependsOn + finalizers), that worked fine so far and it does so with org.gradle.workers.max=1, which may be a lucky coincid…

[image] Vampire: Ah, was not aware the listener is called async. But even then, this is not too much of a problem if you have one service you use for all starting and stopping. Just have a Semaphore with one permit in the service that you acquire in the beginning of spin-up and release as last…

(which I do spawn and shutdown via dependsOn + finalizers) Not the best idea. That is one of the main use-cases of shared build services. For example, if the runTest task will be up-to-date or coming from cache and thus not being executed, spinning up and tearing down will still be done for no …

I thought you would say something like that :wink: But using a shared buildservice to spin up those containers would not be possible, at least I don’t see how that would work. Each of that composeUp tasks of every subproject can configure the environment needed to spin up those containers (env var…

Each of that composeUp tasks of every subproject Well, what you showed was one compose up task in root project for a test task in a subproject. But anyway, But using a shared buildservice to spin up those containers would not be possible, at least I don’t see how that would work. Why? Just …

[image] Vampire: Each of that composeUp tasks of every subproject Well, what you showed was one compose up task in root project for a test task in a subproject. But anyway, Of cause I trimmed it down for the example itself, but I’ll try to enrich the example a little bit again if new ques…

but if I have different build services, I can’t tell them that they have to be only one running in parallel at all […] or how can I tell a group of services that the max usage must be one for all of them at once? As I said, you can either have the multiple services for spin-up and tear-down, and …

[image] Vampire: I’m not Gradle, I’m just a user like you, this is a user community. :slight_smile: I know, but lets say, I appreciate your input and consider your opinion / answers on Gradle very seriously :wink: Back to topic - I updated the repository trying to implement your suggestion a…

I found in a Gradle bug ticket this internal API thing: gradle.taskGraph.whenReady { gradle.serviceOf<BuildEventsListenerRegistry>().onTaskCompletion(taskSemaphore) } If I add that to both subprojects it seems to work BUT this is not documented on the buildServices usage page / docs at all. O…

I implemented Using Shared Build Services , but the listener callback is never called - if you run: Of course not, if you don’t register the listener as shown in the page you linked in the last example, it does not somehow magically self-register anywhere. If I add that to both subprojects it s…

[image] Vampire: Of course, why should the doc document using internal API and bad practice? :smiley: And the correct way is documented on the page you linked in the last example. It does neither make sense to use the internal serviceOf, nor doing the registration in taskGraph.whenReady. Just…

Ah I thought that while using useService(..) it would register that for exactly that task only No, that just declares that the task uses the service, independent from any listening. If you inject the service to a custom task using @SerivceReference that usesService call is done automatically. T…

Build lifecylce question / task ordering with org.gradle.workers.max > 1

Help/Discuss

tkrah (Torsten K.) June 16, 2026, 3:04pm 19

Yeah good suggestion

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Build lifecylce question / task ordering with org.gradle.workers.max > 1

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