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Bug
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Resolution: Unresolved
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Major
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None
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CloudBees Jenkins Enterprise 2.32.2.1-rolling
lockable resources plugin version 1.x & 2.x
In strained situations, more resources than you asked for might get locked. This creates a bottleneck problem related to resources but it cannot be solved by adding more resources.
In worst cases will always lock all resources with a certain label instead of the required amount.
You can recreate the issue by configuring a couple (say 4) of lockable resources with a tag. Trigger a bunch of these jobs with NUM_RESOURCES between 1 - 4 to build up a queue of jobs waiting for their resources to become available. Eventually the error will start appearing.
properties([ parameters ([ string(name: 'NUM_RESOURCES') ]) ]); node { def askFor = params.NUM_RESOURCES as Integer lock(label: "FOO", quantity: askFor) { def clients = org.jenkins.plugins.lockableresources.LockableResourcesManager.class.get().getResourcesFromBuild(currentBuild.getRawBuild()) echo("Asked for ${askFor} resources, got ${clients.size()}: ${clients.toString()}") sleep (60 * 10) if (askFor != clients.size()) { error ("Wrong amount of resources acquired") } } }
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