Personal blog of Yzmir Ramirez

Here in Percona Support, we’re receiving several requests per day for help with Percona Cloud Tools installation steps.

So I decided to prepare a step-by-step example of the installation process with some comments based on experience.  Percona Cloud Tools is a hosted service providing access to query performance insights for all MySQL uses. After a brief setup, you’ll unlock new information about your database and how to improve your applications. You can sign up here to request access to the free beta, currently under way.

Some notes

• It’s recommended to do the installation under root.
• If you’re installing pt-agent as root then .pt-agent.conf should be placed in root $HOME
• You could became root with “sudo -s” command and in this case your homedir is still unchanged and not homedir of root user.
• So I would strongly recommend to login as root or to “sudo -i” to become root and check if your HOME and PWD are the same: env | egrep -i ‘home=|pwd=’

Sign Up

Go to the URL and sign up (or log-in): https://cloud.percona.com/

Prepare

Copy your API key:
On this URL: https://cloud.percona.com/api-key
Or by menu: Agents -> API Key

Percona-Toolkit Download

Download Percona-Toolkit:
http://www.percona.com/downloads/percona-toolkit/LATEST/
For example:

• DEB: for Debian/Ubuntu like systems
• RPM: for RedHat, CentOS

Percona-Toolkit Installation

CentOS:
yum install http://www.percona.com/redir/downloads/percona-toolkit/LATEST/RPM/percona-toolkit-2.2.6-1.noarch.rpm


Ubuntu:
wget http://www.percona.com/redir/downloads/percona-toolkit/LATEST/deb/percona-toolkit_2.2.6_all.deb
dpkg -i percona-toolkit_2.2.6_all.deb


pt-agent installation

Run this command:
pt-agent --install --user={mysql username} --password={password} --api-key={API Key copied from web site}

Note: add there your username, password and API Key

pt-agent installation output

You should see this:

=============================================================================
pt-agent --install --user={user} --password={password} --api-key={api-key}
Step 1 of 11: Verify the user is root: OK
Step 2 of 11: Check Perl module dependencies: OK
Step 3 of 11: Check for crontab: OK
Step 4 of 11: Verify the API key: OK
Step 5 of 11: Connect to MySQL: OK
Step 6 of 11: Check if MySQL is a slave: NO
Step 7 of 11: Create a MySQL user for the agent: OK
Step 8 of 11: Initialize /etc/percona/agent/my.cnf: OK
Step 9 of 11: Initialize /root/.pt-agent.conf: OK
Step 10 of 11: Create the agent: OK
Step 11 of 11: Run the agent: 2014-01-29T20:12:17 INFO Starting agent
pt-agent has daemonized and is running as PID 13506:
--lib /var/lib/pt-agent
--log /var/log/pt-agent.log
--pid /var/run/pt-agent.pid
These values can change if a different configuration is received.
OK
INSTALLATION COMPLETE
The agent has been installed and started, but it is not running any services yet. Go to https://cloud.percona.com/agents#node1 to enable services for the agent.
=============================================================================

Agent is installed

pt-agent configuration

Goto: https://cloud.percona.com/agents and select your newly created agent

Then enable Service:

• Agents -> Services -> Query Analytics -> On (Push Off button and configure values)
• Save

Done!

Now wait a few min, check Status Log: Agents -> select agent -> Status Log
You should see there: “Agent OK”

Now wait (~3 min) until pt-agent will add jobs to crontab.
You should see there: “Services OK”

Then run some slow queries and wait (~3-5 min).
If everything is ok then you should see there “Exit: 200″

Now check Query Analytics.

There is a “Help Me” button at the bottom of the page so you can ask for Support if you have any questions and our Support team will gladly help you.

Enjoy!

The post Quick installation guide for Percona Cloud Tools for MySQL appeared first on MySQL Performance Blog.

Lots of times we could see different benchmarks performed by tpcc-mysql. So today I want to tell you about how to use tpcc-mysql and how to build graphs with gnuplot in a few easy steps.

As an example I’ll compare Percona Server 5.5 (latest version: 5.5.31) performance by changing InnoDB buffer pool size: innodb_buffer_pool_size = 256M / innodb_buffer_pool_size = 768M on my old test machine

System Info

• CPU: Intel(R) Pentium(R) 4 CPU 1.80GHz
• MemTotal: 1543732 kB
• OS: LinuxMint 15 (based on Ubuntu 13.04)

Files
You can find the source code of all files at the end of this post

Installation

• Install latest Percona Server
• Install tpcc-mysql


sudo apt-get install bzr
bzr branch lp:~percona-dev/perconatools/tpcc-mysql
make all

In this case it’s installed to ~/tpcc-mysql/ directory

• Install gnuplot


sudo apt-get install gnuplot


DB Config
First test will be running with innodb_buffer_pool_size = 256M option enabled and second one with innodb_buffer_pool_size = 768M

Test for innodb_buffer_pool_size = 256M

Create DB
Assuming that Percona Server 5.5.31 installed and configured

cd ~/tpcc-mysql
mysql -u root -p -e "CREATE DATABASE tpcc1000;"
mysql -u root -p tpcc1000 < create_table.sql
mysql -u root -p tpcc1000 < add_fkey_idx.sql


Load Data

./tpcc_load 127.0.0.1 tpcc1000 root "root-password" 20


Where:

• Host: 127.0.0.1
• DB: tpcc1000
• User: root
• Password: root-password
• Warehouse: 20

...DATA LOADING COMPLETED SUCCESSFULLY.

In this case DB size is 1.9GB

Run tpcc-mysql test

./tpcc_start -h127.0.0.1 -dtpcc1000 -uroot -p -w20 -c16 -r10 -l1200 > ~/tpcc-output-ps-55-bpool-256.log


Where:

• Host: 127.0.0.1
• DB: tpcc1000
• User: root
• Warehouse: 20
• Connection: 16
• Rampup time: 10 (sec)
• Measure: 1200 (sec)

The most interesting part in the output is:

MEASURING START.

10, 25(17):9.005|9.221, 21(0):1.866|1.869, 3(0):0.647|0.840, 1(0):0.000|10.614, 2(2):19.999|29.490
20, 22(14):9.419|9.555, 26(0):1.591|1.593, 2(0):0.593|0.788, 4(0):10.453|10.688, 3(3):19.999|22.962
30, 41(32):8.703|9.057, 32(0):1.615|1.662, 3(0):0.588|0.777, 2(0):9.530|10.495, 3(2):19.999|22.983

The first two values are “time range” and “transactions”, so you can read it as:

0-10 sec, 25 transactions
10-20 sec, 22 transactions
20-30 sec, 41 transactions


Test for innodb_buffer_pool_size = 768M

Repeat following steps for innodb_buffer_pool_size = 768M (change it in my.cnf) and get results:

• DB Config
• Create DB
• Load Data
• Run tpcc-mysql test


./tpcc_start -h127.0.0.1 -dtpcc1000 -uroot -p -w20 -c16 -r10 -l1200 > ~/tpcc-output-ps-55-bpool-768.log


There are 2 files: tpcc-output-ps-55-bpool-256.log and tpcc-output-ps-55-bpool-768.log which have benchmarking results for both tests.

Generate data file for each test

./tpcc-output-analyze.sh ~/tpcc-output-ps-55-bpool-256.log > tpcc-256-data.txt
./tpcc-output-analyze.sh ~/tpcc-output-ps-55-bpool-768.log > tpcc-768-data.txt


Merge data files

paste tpcc-256-data.txt tpcc-768-data.txt > tpcc-graph-data.txt


Build graph

./tpcc-graph-build.sh tpcc-graph-data.txt tpcc-graph.jpg


In this case tpcc-graph-data.txt is a filename of source datafile and tpcc-graph.jpg filename of graph which will be generated

Graph ready: tpcc-graph.jpg

Note: “using 3:4 … with lines axes x1y1″ in tpcc-graph-build.sh means that columns number 3 and 4 in datafile will be used for as axises x and y accordingly while building second line

File listing

tpcc-output-analyze.sh (I got it there and a bit modified)

TIMESLOT=1

if [ -n “$2” ]
then
TIMESLOT=$2
echo “Defined $2″
fi

cat $1 | grep -v HY000 | grep -v payment | grep -v neword | awk -v timeslot=$TIMESLOT ‘ BEGIN { FS=”[,():]“; s=0; cntr=0; aggr=0 } /MEASURING START/ { s=1} /STOPPING THREADS/ {s=0} /0/ { if (s==1) { cntr++; aggr+=$2; } if ( cntr==timeslot ) { printf (“%d %3d\n”,$1,(aggr/’$TIMESLOT’)) ; cntr=0; aggr=0 } } ‘

tpcc-graph-build.sh

#!/bin/bash

### goto user homedir and remove previous file
rm -f ‘$2′

gnuplot << EOP

### set data source file
datafile = ‘$1′

### set graph type and size
set terminal jpeg size 640,480

### set titles
set grid x y
set xlabel “Time (sec)”
set ylabel “Transactions”

### set output filename
set output ‘$2′

### build graph
# plot datafile with lines
plot datafile title “PS 5.5.1, buffer pool: 256M” with lines, \
datafile using 3:4 title “PS 5.5.1, buffer pool: 768M” with lines axes x1y1

EOP

The post tpcc-mysql: Simple usage steps and how to build graphs with gnuplot appeared first on MySQL Performance Blog.