While investigating a problem while deleting jobs with an underlying NFS, I found a file handle not being closed properly.
Opened /var/jenkins_home/jobs/foo3/builds/2/log by thread:Executor #0 for 1a23cd785b098 : executing foo3 #2 on Tue Feb 21 18:24:12 UTC 2017
at java.io.FileOutputStream.<init>(FileOutputStream.java:214)
at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
at org.jenkinsci.plugins.oneshot.OneShotSlave.setExecutable(OneShotSlave.java:212)
at org.jenkinsci.plugins.oneshot.OneShotExecutorQueueListener$1.onInitialize(OneShotExecutorQueueListener.java:102)
at hudson.model.listeners.RunListener.fireInitialize(RunListener.java:225)
at hudson.model.Run.onStartBuilding(Run.java:1882)
at hudson.model.Run.execute(Run.java:1697)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:404)
[{"id":-1,"name":"My open issues","jql":"assignee = currentUser() AND resolution = Unresolved order by updated DESC","isSystem":true,"sharePermissions":[],"requiresLogin":true},{"id":-2,"name":"Reported by me","jql":"reporter = currentUser() order by created DESC","isSystem":true,"sharePermissions":[],"requiresLogin":true},{"id":-4,"name":"All issues","jql":"order by created DESC","isSystem":true,"sharePermissions":[],"requiresLogin":false},{"id":-5,"name":"Open issues","jql":"resolution = Unresolved order by priority DESC,updated DESC","isSystem":true,"sharePermissions":[],"requiresLogin":false},{"id":-9,"name":"Done issues","jql":"statusCategory = Done order by updated DESC","isSystem":true,"sharePermissions":[],"requiresLogin":false},{"id":-3,"name":"Viewed recently","jql":"issuekey in issueHistory() order by lastViewed DESC","isSystem":true,"sharePermissions":[],"requiresLogin":false},{"id":-6,"name":"Created recently","jql":"created >= -1w order by created DESC","isSystem":true,"sharePermissions":[],"requiresLogin":false},{"id":-7,"name":"Resolved recently","jql":"resolutiondate >= -1w order by updated DESC","isSystem":true,"sharePermissions":[],"requiresLogin":false},{"id":-8,"name":"Updated recently","jql":"updated >= -1w order by updated DESC","isSystem":true,"sharePermissions":[],"requiresLogin":false}]