[OAK-8988] TarPersistence.lockRepostiory can indefinitely wait if another external process already running

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: segment-tar
• Assignee: Unassigned
• Reporter: Amit Jain
• Created: 31/Mar/20 09:40
• Updated: 30/Apr/20 08:46

Description

TarPersistence.lockRepostiory() [1] waits indefinitely when another segment tar process is already running and has acquired the lock already. The method should timeout if it fails to obtain a lock in a reasonable time (can be an internal value) or have alternative means ascertaining that another process already running e.g. by using mkdir().

1 - https://github.com/apache/jackrabbit-oak/blob/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/tar/TarPersistence.java#L92-L103