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From Jonathan Ellis <>
Subject Re: interest in minor contention issues?
Date Tue, 28 Dec 2010 20:14:36 GMT
Hi Jason,

Thanks for looking into this!

What tool are you using?  I belatedly noticed your tickets (we should
have them resolved for 0.6.9) and it might be useful to do another
check against the 0.7 code.

On Fri, Aug 6, 2010 at 3:25 PM, Jason Fager <> wrote:
> Hi all,
> I'm doing some work with the Java Debugger Interface, and I'm using
> Cassandra as a test bed.  I've found a few minor contention spots
> (example: MessageDigest.getInstance() being called for every
> invocation of FBUtilities.hash()), but before I start possibly
> spamming your jira with them, I wanted to gauge the general interest
> in knowing these kinds of minor issues.  I'm happy to report them as
> they come up while I'm doing my work, but if you consider them too
> minor to worry about until they actually show up as impacting
> performance during profiling, I don't want to annoy anyone.  Let me
> know.
> - Jason

Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support

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