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From "Appy (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-14865) Support passing multiple QOPs to SaslClient/Server via hbase.rpc.protection
Date Fri, 20 Nov 2015 23:13:11 GMT
Appy created HBASE-14865:
----------------------------

             Summary: Support passing multiple QOPs to SaslClient/Server via hbase.rpc.protection
                 Key: HBASE-14865
                 URL: https://issues.apache.org/jira/browse/HBASE-14865
             Project: HBase
          Issue Type: Improvement
          Components: security
            Reporter: Appy


Currently, we can set the value of hbase.rpc.protection to one of authentication/integrity/privacy.
It is the used to set {{javax.security.sasl.qop}} in SaslUtil.java.
The problem is, if a cluster wants to switch from one qop to another, it'll have to take a
downtime. Rolling upgrade will create a situation where some nodes have old value and some
have new, which'll prevent any communication between them. There will be similar issue when
clients will try to connect.

{{javax.security.sasl.qop}} can take in a list of QOP in preferences order. So a transition
from qop1 to qop2 can be easily done like this
"qop1" --> "qop2,qop1" --> rolling restart --> "qop2" --> rolling restart

Need to change hbase.rpc.protection to accept a list too.



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