Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
HBase >> mail # dev >> HBase - Secondary Index


Copy link to this message
-
Re: HBase - Secondary Index
Hi,

On 12/04/2012 09:10 AM, Anoop Sam John wrote:
 > I would like to hear what others think on this. :)

I found it interesting to read your approach on how the indexes can be
used to speed up existing scan operations.

I couldn't find anything in your presentation though about whether your
implementation makes any guarantees to ensure the source table and the
index table are always (eventually) in sync.

What if data is inserted in the source table and then the region server
crashes (before the coprocessor is executed)? Will the index be out of
sync? Do you have a mechanisme in place to detect and restore this
situation?

thanks
Jan