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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-10095) Selective WALEdit encryption
Date Fri, 06 Dec 2013 09:21:35 GMT
Andrew Purtell created HBASE-10095:
--------------------------------------

             Summary: Selective WALEdit encryption
                 Key: HBASE-10095
                 URL: https://issues.apache.org/jira/browse/HBASE-10095
             Project: HBase
          Issue Type: Improvement
    Affects Versions: 0.98.0
            Reporter: Andrew Purtell
            Assignee: Andrew Purtell
             Fix For: 0.98.0


The SecureWALProtobufWriter currently will encrypt every WAL entry if WAL encryption is enabled.
However, SecureWALProtobufReader can distinguish between encrypted and unencrypted entries,
and we encrypt every entry individually in part because the reader can skip and seek around
during split and recovery, but also in part to enable selective encryption of WALedits. We
should consider encrypting only the WALedits of column families for which HBASE-7544 features
are configured. If few column families are encrypted relative to all CFs on the cluster, the
performance difference will be significant.



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