hot spot, Please see Issue HBASE-3779 which may be help you.
https://issues.apache.org/jira/browse/HBASE-3779
-邮件原件-
发件人: Venkatesh [mailto:vramanatha...@aol.com]
发送时间: 2011年4月22日 12:00
收件人: user@hbase.apache.org
主题: Re: hbase 0.90.2 - incredibly slow response
Thanks St.Ack
Yes
...@duboce.net
To: user@hbase.apache.org
Sent: Wed, Apr 20, 2011 2:11 pm
Subject: Re: hbase 0.90.2 - incredibly slow response
Want to paste your configuration up in pastebin?
Is that 700million puts a day?
Remind us of your cluster size.
Paste some of a regionserver log too. That can be informative
Message-
From: Stack st...@duboce.net
To: user@hbase.apache.org
Sent: Wed, Apr 20, 2011 2:11 pm
Subject: Re: hbase 0.90.2 - incredibly slow response
Want to paste your configuration up in pastebin?
Is that 700million puts a day?
Remind us of your cluster size.
Paste some
Thanks St.Ack
Yes..will try the upgrade in a smaller setup with ..production like load
will investigate/compare
-Original Message-
From: Stack st...@duboce.net
To: user@hbase.apache.org
Sent: Thu, Apr 21, 2011 11:47 pm
Subject: Re: hbase 0.90.2 - incredibly slow response
On Tue, Apr 19, 2011 at 11:58 AM, Venkatesh vramanatha...@aol.com wrote:
I was hoping that too..
I don't have scripts to generate # requests from shell..I will try that..
Did you try it?
Above you seem to say that a simple put of 100 bytes takes 2 seconds
where in 0.20.6 it took 10
-
From: Stack st...@duboce.net
To: user@hbase.apache.org
Sent: Wed, Apr 20, 2011 1:30 pm
Subject: Re: hbase 0.90.2 - incredibly slow response
On Tue, Apr 19, 2011 at 11:58 AM, Venkatesh vramanatha...@aol.com wrote:
I was hoping that too..
I don't have scripts to generate # requests from
To: user@hbase.apache.org
Sent: Wed, Apr 20, 2011 1:30 pm
Subject: Re: hbase 0.90.2 - incredibly slow response
On Tue, Apr 19, 2011 at 11:58 AM, Venkatesh vramanatha...@aol.com wrote:
I was hoping that too..
I don't have scripts to generate # requests from shell..I will try that..
Did
Just upgraded to 0.90.2 from 0.20.6..Doing a simple put to table ( 100 bytes
per put)..
Only code change was to retrofit the HTable API to work with 0.90.2
Initializing HBaseConfiguration in servlet.init()... reusing that config for
HTable constructor doing put
Performance is very slow
hurt
performance?
frustrating..thanks for your help
-Original Message-
From: Stack st...@duboce.net
To: user@hbase.apache.org
Sent: Tue, Apr 19, 2011 1:40 pm
Subject: Re: hbase 0.90.2 - incredibly slow response
0.90.2 should be faster.
Running same query from shell, it gives you