Yeah I worked around this by skipping all but the last call. I need to fix this 
properly. Thx for the reminder :)

 

On Jul 19, 2012, at 7:47 PM, Jonathan Ellis <jbel...@gmail.com> wrote:

> That smells like a bug to me.  I don't see how you can avoid getting
> multiple buildIndexAsync calls kicked off.
> 
> What do you think, Jake?
> 
> On Thu, May 31, 2012 at 4:46 PM, Adam Holmberg
> <adam.holmberg.l...@gmail.com> wrote:
>> I've been studying and experimenting some with the SecondaryIndex API,
>> specifically extending the PerRowSecondaryIndex class.
>> 
>> I understand from this recent
>> thread<http://mail-archives.apache.org/mod_mbox/cassandra-dev/201205.mbox/%3CCAMYB=b6c9HTDgOFHQS-UwS4UF2a6NiMs3+C++iG3M8z4xgzn=g...@mail.gmail.com%3E>that
>> this feature is not yet widely used, but I was hoping someone could
>> shed some light on its intended concept of operation:
>> 
>> My intuition was to specify my custom index for every column in the column
>> family that I want to trigger an update for this index. This has the
>> desired effect for a 'built' index as new row mutations arrive. What I'm
>> confused about is what happens as the index is built for the first time.
>> What I'm seeing is that an asynchronous build is kicked off for every
>> column to which this index is attached (which is obviously undesirable).
>> 
>> It's plain to see why this is happening following the SecondaryIndexManager
>> reload/addIndexedColumn routines. Now what I'm wondering is if there is
>> room for improvement here:
>> 
>> Should the Manager wait to initiate an index build until the last column
>> has been added to a given rowLevelIndex? Or is the impetus on the
>> PerRowSecondaryIndex implementation to 'fool' the manager into bypassing
>> the build until the last column is added?
>> 
>> My gut says the former would be preferred since the latter could be a
>> fragile use of the Interface, but I'm just getting into this area and maybe
>> I'm thinking about things wrong.
>> 
>> Any input would be appreciated.
>> 
>> Regards,
>> Adam Holmberg
> 
> 
> 
> -- 
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of DataStax, the source for professional Cassandra support
> http://www.datastax.com

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