Backup plugin: unable to delete files in a Local Storage

Article ID:360029063712
1 minute readKnowledge base

Issue

  • My backup job is failing with a similar traces like the following in the Console Build logs:

....
Caused: java.io.IOException: Unable to delete /var/lock - files in dir: [/var/lock/subsys]
at hudson.Util.tryOnceDeleteFile(Util.java:324)
at hudson.Util.deleteFile(Util.java:274)
Caused: java.io.IOException: Unable to delete '/var/lock'. Tried 3 times (of a maximum of 3) waiting 0.1 sec between attempts.
at hudson.Util.deleteFile(Util.java:279)
at com.infradna.hudson.plugins.backup.store.LocalFileStore$2.delete(LocalFileStore.java:145)
at com.infradna.hudson.plugins.backup.retention.UpToNRetentionPolicy.scrub(UpToNRetentionPolicy.java:30)
at com.infradna.hudson.plugins.backup.BackupBuilder.scrub(BackupBuilder.java:268)
at com.infradna.hudson.plugins.backup.BackupBuilder.doPerform(BackupBuilder.java:251)
at com.infradna.hudson.plugins.backup.BackupBuilder.perform(BackupBuilder.java:172)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:744)
at hudson.model.Build$BuildExecution.build(Build.java:206)
at hudson.model.Build$BuildExecution.doRun(Build.java:163)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:504)
at hudson.model.Run.execute(Run.java:1810)
at hudson.model.Build.run(Build.java:114)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:429)
An attempt to send an e-mail to empty list of recipients, ignored.
Finished: FAILURE
▼

Environment

Resolution

This happens when backup target folder is a LocalFileStore type and the target folder contains a subfolder.

For example, having this folder structure

.
└── folder.example
    └── subfolder.example

If folder.example is configured as backup target folder from a local file system, it will fail. The solution is using folder.example/subfolder.example instead.

Notes:

  1. CloudBees Backup plugin >= 3.38.12 solves the issue, meaning that a Backup Target folder can contain subfolders.

  2. For disaster recovery, it is highly recommended that you send the backup to a network drive, NFS-mounted directory, etc. see Backup Plugin - Local directory

This article is part of our Knowledge Base and is provided for guidance-based purposes only. The solutions or workarounds described here are not officially supported by CloudBees and may not be applicable in all environments. Use at your own discretion, and test changes in a safe environment before applying them to production systems.