Yes Jonathan as of now we need a reboot.. Take a look at HBASE-1936. This is not completed. You can give your thoughts there and have a look at the patch/discussion...
From: Jonathan Bishop [[EMAIL PROTECTED]]
Sent: Friday, November 02, 2012 2:52 AM
To: [EMAIL PROTECTED]
Subject: Filters for hbase scans require reboot.
I am developing a filter to be used in a scan for hbase, and I find that I
1) make sure HBASE_CLASSPATH points to a jar or bin with my filter
2) reboot hbase (stop-hbase.sh, start-hbase.sh)
Otherwise, it seems hbase does not pick up my changes to my filter.
Is there an easier way to do this?