[NIFI-2551] Rare condition causes FileSystemRepository NPE

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.0.0, 0.7.0
• Fix Version/s: 1.0.0, 0.7.1
• Component/s: Core Framework
• Assignee: Mark Payne
• Reporter: Michael W Moser
• Created: 11/Aug/16 15:06
• Updated: 07/Oct/16 19:00
• Resolved: 15/Aug/16 21:02

Description

In rare unpredictable cases when NiFi is processing a heavy load, we see FileSystemRepository throw a NullPointerException

java.lang.NullPointerException
    at o.a.n.c.r.FileSystemRepository$2.write(FileSystemRepository.java:918) [nifi-framework-core-0.7.0.jar]
    at o.a.n.c.r.io.DisableOnCloseOutputStream.write(DisableOnCloseOutputStream.java:49)
    ....
    Suppressed: java.lang.NullPointerException
        at o.a.n.c.r.FileSystemRepository$2.flush(FileSystemRepository.java:934) [nifi-framework-core-0.7.0.jar]
        at o.a.n.c.r.io.DisableOnCloseOutputStream.close(DisableOnCloseOutputStream.java:68)

Issue Links

• relates to: NIFI-2397 Create 0.x patch for premature closure on content stream
• relates to: NIFI-2376 Content could be prematurely archived/removed if a call to append() throws an Exception
• links to: GitHub Pull Request #838
• links to: GitHub Pull Request #847
• links to: GitHub Pull Request #848