[jira] [Updated] (HDDS-11253) Handle corrupted merkle tree files

["Ethan Rose (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-11253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ethan Rose updated HDDS-11253:
------------------------------
    Status: Patch Available  (was: In Progress)

> Handle corrupted merkle tree files
> ----------------------------------
>
>                 Key: HDDS-11253
>                 URL: https://issues.apache.org/jira/browse/HDDS-11253
>             Project: Apache Ozone
>          Issue Type: Sub-task
>            Reporter: Ethan Rose
>            Assignee: Ethan Rose
>            Priority: Major
>
> A merkle tree file may be corrupted during write or by some other error. This should only be a temporary problem since the scanner will rewrite it on its next run. Until that happens failures should be handled accordingly:
> * Clients calling the readMerkleTree API should be able to cleanly fail on a corrupted file. The server does not deserialize it before sending.
> * Reconciliation should regenerate a local checksum file if it is corrupted, as if it does not exist.
> * File write can be done by renaming a temp file into place to avoid corruption from partial writes. The file would either be present or absent if a write fails, but not partially written.
> * Tests using corrupted files should be added.
>  



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