*Sent:* Saturday, September 6, 2014 11:30 AM
*Subject:* Re: HBase - Performance issue
Lars,
We are facing a similar situation on the similar cluster configuration...
We are having high I/O wait percentages on some machines in our cluster...
We have short circuit reads enabled but still we
kiran.sarvabho...@gmail.com
*To:* user@hbase.apache.org; lars hofhansl la...@apache.org
*Sent:* Saturday, September 6, 2014 11:30 AM
*Subject:* Re: HBase - Performance issue
Lars,
We are facing a similar situation on the similar cluster configuration...
We are having high I/O wait percentages
*Sent:* Saturday, September 6, 2014 11:30 AM
*Subject:* Re: HBase - Performance issue
Lars,
We are facing a similar situation on the similar cluster configuration...
We are having high I/O wait percentages on some machines in our cluster...
We have short circuit reads enabled but still we
that
experience high wait times?
-- Lars
--
*From:* kiran kiran.sarvabho...@gmail.com
*To:* user@hbase.apache.org; lars hofhansl la...@apache.org
*Sent:* Saturday, September 6, 2014 11:30 AM
*Subject:* Re: HBase - Performance issue
Lars,
We are facing a similar
had not observed this effect as much when short circuit reads
are enabled)
- Original Message -
From: kzurek kzu...@proximetry.pl
To: user@hbase.apache.org
Cc:
Sent: Wednesday, April 24, 2013 3:12 AM
Subject: HBase - Performance issue
The problem is that when I'm putting my data
:
Sent: Wednesday, April 24, 2013 3:12 AM
Subject: HBase - Performance issue
The problem is that when I'm putting my data (multithreaded client,
~30MB/s
traffic outgoing) into the cluster the load is equally spread over all
RegionServer with 3.5% average CPU wait time (average CPU user: 51%). When
not observed this effect as much when short circuit reads
are enabled)
- Original Message -
From: kzurek kzu...@proximetry.pl
To: user@hbase.apache.org
Cc:
Sent: Wednesday, April 24, 2013 3:12 AM
Subject: HBase - Performance issue
The problem is that when I'm putting my data
, can you post a jstack of the processes that
experience high wait times?
-- Lars
From: kiran kiran.sarvabho...@gmail.com
To: user@hbase.apache.org; lars hofhansl la...@apache.org
Sent: Saturday, September 6, 2014 11:30 AM
Subject: Re: HBase - Performance issue
, www.carrieriq.com
e-mail: vrodio...@carrieriq.com
From: Ted Yu [yuzhih...@gmail.com]
Sent: Saturday, January 04, 2014 2:33 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
There're 8 items under:
http
Principal Platform Engineer
Carrier IQ, www.carrieriq.com
e-mail: vrodio...@carrieriq.com
From: Ted Yu [yuzhih...@gmail.com]
Sent: Saturday, January 04, 2014 2:33 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
Principal Platform Engineer
Carrier IQ, www.carrieriq.com
e-mail: vrodio...@carrieriq.com
From: Ted Yu [yuzhih...@gmail.com]
Sent: Saturday, January 04, 2014 2:33 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
There're 8 items under
, www.carrieriq.com
e-mail: vrodio...@carrieriq.com
From: Ted Yu [yuzhih...@gmail.com]
Sent: Saturday, January 04, 2014 2:33 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
There're 8 items under:
http://hbase.apache.org/book.html#perf.writing
From: Ted Yu [yuzhih...@gmail.com]
Sent: Saturday, January 04, 2014 2:33 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
There're 8 items under:
http://hbase.apache.org/book.html#perf.writing
I guess you have through all of them
in performance while writing to HDFS as i
use cluster with more nodes, having high specifications, but in the case of
Hbase there was no significant change in performance.
I have been going through different posts, articles and have read Hbase
book to solve the Hbase performance issue but have not been able
increase in performance while writing to HDFS as i
use cluster with more nodes, having high specifications, but in the case
of
Hbase there was no significant change in performance.
I have been going through different posts, articles and have read Hbase
book to solve the Hbase performance
: Akhtar Muhammad Din [akhtar.m...@gmail.com]
Sent: Saturday, January 04, 2014 12:44 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
im using CDH 4.5:
Hadoop: 2.0.0-cdh4.5.0
HBase: 0.94.6-cdh4.5.0
Regards
On Sun, Jan 5, 2014 at 1:24 AM, Ted Yu yuzhih...@gmail.com wrote:
What
...@gmail.com]
Sent: Saturday, January 04, 2014 12:44 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
im using CDH 4.5:
Hadoop: 2.0.0-cdh4.5.0
HBase: 0.94.6-cdh4.5.0
Regards
On Sun, Jan 5, 2014 at 1:24 AM, Ted Yu yuzhih...@gmail.com wrote:
What version of HBase / hdfs
IQ, www.carrieriq.com
e-mail: vrodio...@carrieriq.com
From: Akhtar Muhammad Din [akhtar.m...@gmail.com]
Sent: Saturday, January 04, 2014 12:44 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
im using CDH 4.5:
Hadoop
...@carrieriq.com
From: Akhtar Muhammad Din [akhtar.m...@gmail.com]
Sent: Saturday, January 04, 2014 12:44 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
im using CDH 4.5:
Hadoop: 2.0.0-cdh4.5.0
HBase: 0.94.6-cdh4.5.0
, January 04, 2014 12:44 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
im using CDH 4.5:
Hadoop: 2.0.0-cdh4.5.0
HBase: 0.94.6-cdh4.5.0
Regards
On Sun, Jan 5, 2014 at 1:24 AM, Ted Yu yuzhih...@gmail.com wrote:
What version
Muhammad Din [akhtar.m...@gmail.com]
Sent: Saturday, January 04, 2014 12:44 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
im using CDH 4.5:
Hadoop: 2.0.0-cdh4.5.0
HBase: 0.94.6-cdh4.5.0
Regards
On Sun, Jan 5, 2014 at 1:24 AM
From: Ted Yu [yuzhih...@gmail.com]
Sent: Saturday, January 04, 2014 2:33 PM
To: user@hbase.apache.org
Subject: Re: Hbase Performance Issue
There're 8 items under:
http://hbase.apache.org/book.html#perf.writing
I guess you have through all of them :-)
On Sat, Jan 4
and randomly draws beginning of time
range to build rowkey properly (see above).
Each time Scan requests same amount of rows, but with random rowkey.
--
View this message in context:
http://apache-hbase.679495.n3.nabble.com/HBase-Performance-issue-tp4042836.html
Sent from the HBase User mailing
requests same amount of rows, but with random rowkey.
--
View this message in context:
http://apache-hbase.679495.n3.nabble.com/HBase-Performance-issue-tp4042836.html
Sent from the HBase User mailing list archive at Nabble.com.
I've following settings:
hbase.master.handler.count = 25 (default value in CDH4.2)
hbase.regionserver.handler.count = 20 (default 10)
--
View this message in context:
http://apache-hbase.679495.n3.nabble.com/HBase-Performance-issue-tp4042836p4042840.html
Sent from the HBase User mailing
, April 24, 2013 3:12 AM
Subject: HBase - Performance issue
The problem is that when I'm putting my data (multithreaded client, ~30MB/s
traffic outgoing) into the cluster the load is equally spread over all
RegionServer with 3.5% average CPU wait time (average CPU user: 51%). When
I've added similar
Your post is missing the most important configurations, mainly the
region server heap size and GC configs.
Also, how much of those 300GB do you need to serve? Does the working
dataset fit in cache?
J-D
On Sun, Mar 11, 2012 at 12:39 PM, Антон Лыска ant...@wildec.com wrote:
Hi guys!
I have a
If you're using Cloudera, you want to be on CDH3u3 because it has several
HDFS performance fixes for low-latency reads.
That still doesn't address your 23:00-hour perf issue, but that's
something that will help.
On 3/11/12 3:39 PM, Антон Лыска ant...@wildec.com wrote:
Hi guys!
I have a
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