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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10063) Consider lighter weight generation of IVs for WAL entries
Date Wed, 04 Dec 2013 07:41:38 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Andrew Purtell updated HBASE-10063:

    Fix Version/s:     (was: 0.98.0)

> Consider lighter weight generation of IVs for WAL entries
> ---------------------------------------------------------
>                 Key: HBASE-10063
>                 URL: https://issues.apache.org/jira/browse/HBASE-10063
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 0.98.1
> In SecureWALCellCodec#EncryptedKvEncoder#write we get the IV for the entry from the secure
RNG. This can be a heavyweight operation if not using an accelerated RNG. Consider something
lighter weight. One option could be to create a random IV only once, store it in the header,
and then increment it per cell. Correct decryption will depend on being able to correctly
count entries even if skipping or rewinding.

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