[jira] [Updated] (ACCUMULO-1654) Bug in encryption-at-rest causes periodic IOExceptions

["Michael Allen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ACCUMULO-1654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Allen updated ACCUMULO-1654:
------------------------------------

    Attachment: 0001-Fixed-a-bug-where-keys-and-IVs-from-encrypted-files-.patch

This patch fixes the above bug.  It applies cleanly to git master as of 4:17 EDT on 15-Aug-2013.
                
> Bug in encryption-at-rest causes periodic IOExceptions
> ------------------------------------------------------
>
>                 Key: ACCUMULO-1654
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1654
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>    Affects Versions: 1.6.0
>            Reporter: Michael Allen
>         Attachments: 0001-Fixed-a-bug-where-keys-and-IVs-from-encrypted-files-.patch
>
>
> During longevity testing of the encryption-at-rest version of Accumulo, we would occasionally see IOExceptions that took the form of Zlib throwing an "incorrect header check" exception.  These exceptions occurred only after a few hours of testing, during minor and major compaction of various RFiles.  Downloading and examining the RFiles in question showed no obvious deformities within the RFile structure.  
> Some careful debugging later, the crux of the problem turned out to be some calls to read() when readFully() should have been used.  
> Patch coming forthwith.  Also included in this patch is another secret key handling strategy that caches the secret key from HDFS when first read.

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