Can we add a counter for the number of InternalScanner's to HRegion ?
We decrement this counter when close() is called.
Such counter can be used to gauge the cost of moving the underlying region.
Cheers
requests
that incur a cost, not just active scanners).
JG
-Original Message-
From: Ted Yu [mailto:yuzhih...@gmail.com]
Sent: Monday, March 21, 2011 3:44 PM
To: dev@hbase.apache.org
Subject: gauging cost of region movement
Can we add a counter for the number of InternalScanner's
Also, using more stable measures of request count will help, such as 30 minute
rolling averages.
-Original Message-
From: Jonathan Gray [mailto:jg...@fb.com]
Sent: Monday, March 21, 2011 4:23 PM
To: dev@hbase.apache.org
Subject: RE: gauging cost of region movement
, such as 30
minute rolling averages.
-Original Message-
From: Jonathan Gray [mailto:jg...@fb.com]
Sent: Monday, March 21, 2011 4:23 PM
To: dev@hbase.apache.org
Subject: RE: gauging cost of region movement
This is an interesting direction, and definitely file a JIRA as this could
, 2011 4:23 PM
To: dev@hbase.apache.org
Subject: RE: gauging cost of region movement
This is an interesting direction, and definitely file a JIRA as this
could be an
additional metric in the future, but it's not exactly what I had in
mind.
One of the hardest parts of load balancing
