Re: interest in minor contention issues?

[Rob Coli]

On 8/6/10 1:37 PM, Gary Dusbabek wrote:

I think if there is a demonstrable increase in performance or other
obvious wins, then you should go ahead and submit jiras (and patches).


+1, when you have hundreds of threads, even minor contention issues may 
be significant.


=Rob

Re: cassandra for a inbox search with high reading qps

[Rob Coli]

On 8/19/10 7:18 AM, Chen Xinli wrote:

2010/8/19 Oleg Anastasjev


Chen Xinli  gmail.com>  writes:



Hi,

Despite our use cases, is't it a good feature to disable reading when a

node

is doing hinted handoff, just like bootstraping?
It will be very useful for READ ONE consitency level.

Or it can be an option in storage-conf.xml, and user can set it when
necessary.

I'd like to implement this feature if it's useful.


Yes, we also use this failback policy, but currently doing it manually -
returning node back to clients nodelist only after hinted handoff is
completed.


FWIW, this has been proposed before, and resolved "Not A Problem."

https://issues.apache.org/jira/browse/CASSANDRA-768

=Rob