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From Ted Zlatanov <>
Subject Re: thinking about dropping hinted handoff
Date Wed, 10 Mar 2010 14:16:52 GMT
On Fri, 26 Feb 2010 08:18:49 -0600 Ted Zlatanov <> wrote: 

TZ> On Tue, 23 Feb 2010 12:30:52 -0600 Ted Zlatanov <> wrote: 
> Can a Cassandra node be made read-only (as far as clients know)?

TZ> I realized I have another use case for read-only access besides backups:

TZ> On our network we have Cassandra readers, writers, and analyzers
TZ> (read+write).  The writers and analyzers can run anywhere.  The readers
TZ> can run anywhere too.  I don't want the readers to have write access but
TZ> they should be able to read all keyspaces.

TZ> I think the best way to solve this is with an IAuthenticator change to
TZ> distinguish between full permissions and read-only permissions.  Then
TZ> the Thrift API has to be modified to check for write access in only some
TZ> functions:
TZ> Does this seem reasonable?

Any comments, while we're discussing authentication?  I think read-only
access makes a lot of sense in this context.


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