[HBASE-1185] wrong request/sec in the gui reporting wrong

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.19.0
• Fix Version/s: 0.19.1, 0.20.0
• Component/s: Client, regionserver

Environment

0.19.0

• Assignee: Jean-Daniel Cryans
• Reporter: Billy Pearson
• Created: 05/Feb/09 17:29
• Updated: 13/Sep/09 22:24
• Resolved: 05/Mar/09 14:10

Description

I am seeing lower number of request in the masters gui then I have seen in 0.18.0 while scanning.
I thank part of it is we moved to report per sec request not per 3 secs so the request should be 1/3 of the old numbers I was getting.

hbase.client.scanner.caching is not the reason the request are under reported.
I set hbase.client.scanner.caching = 1 and still get about 2K request a sec in the gui
but when the job is done I take records / job time and get 36,324/ records /sec. So
there must be some caching out side of the hbase.client.scanner.caching making the
request per sec lower then it should be. I know it running faster then reported just thought
it might give some new users the wrong impression that request/sec = read/write /sec.