[jira] [Created] (OAK-1869) TarMK: Incorrect tar entry verification in recovery mode

["Jukka Zitting (JIRA)" <ji...@apache.org>]

Jukka Zitting created OAK-1869:
----------------------------------

             Summary: TarMK: Incorrect tar entry verification in recovery mode
                 Key: OAK-1869
                 URL: https://issues.apache.org/jira/browse/OAK-1869
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: core, segmentmk
            Reporter: Jukka Zitting
            Assignee: Jukka Zitting
            Priority: Critical


When recovering segments from a forcibly closed tar file (i.e. one without a proper tar index), the TarMK will scan all tar entries and verify their checksums. Unfortunately that checksum verification is incorrect, which leads to a lot of errors like the one below, and to the affected segments being discarded.

{noformat}
Invalid entry checksum at offset NNNNN in tar file /path/to/dataNNNNNNx.tar, skipping...
{noformat}

In practice this leads to the TarMK undoing a lot of recent changes until it finds a segment that hasn't been discarded because of such an incorrect checksum verification.



--
This message was sent by Atlassian JIRA
(v6.2#6252)