Instrument your System with dimSTAT
Other chapters posted until now:
- Introduction
- Monitoring systems with dimSTAT
- Know your system: System introspection
- System utilsation
- Process introspection
- Process monitoring with prstat
- Managing I/O
- Understanding the network
- Tracing at large
The second chapter of the Solaris Performance Primer deals with a must have utility: dimSTAT. dimSTAT a freely available monitoring tool will monitor entire data centers while you are gone fishing...
dimSTAT is a tool for general and/or detailed performance analysis and monitoring of Solaris and Linux systems. dimSTAT is a monitoring framework that offers flight-recorder type functionality. A central site can monitor a number of nodes for performance data and store the results for easy displaying and post-processing.
You can download the software and documentation from: http://dimitrik.free.fr/
dimSTAT - Installation
Users of the Code Camp DVD image can skip this part. The software is already installed!
dimSTAT installation is straight forward. Get hold of the latest distribution files and then untar them into a directory of your choice:
cd /tmp tar -xvf <path_to_dimstat>/dim_STAT-v81-sol86.tar |
Then run the INSTALL.sh file with /bin/sh and follow the instructions:
root@soldevx> sh INSTALL.sh =========================================== ** Starting dim_STAT Server INSTALLATION ** =========================================== HOSTNAME: soldevx IP: ::1 DOMAINE: Is it correct? (y/n): n ** Hostname [soldevx]: localhost ** IP addres [::1]: ** Domainname []: ** Domainname []: ** Domainname []: ** Domainname []: . ** ** ATTENTION! ** ** On your host You have to assign a USER/GROUP pair as owner ** of all dim_STAT modules (default: dim/dim) User: dim Group: dim Is it correct? (y/n): y ** ** WARNING!!! ** ** User dim (group dim) is not created on your host... ** You may do it now by yourself or let me do it during ** installation... ** May I create this USER/GROUP on your host? (y/n): y ====================================== ** dim_STAT Directory Configuration ** ====================================== ** WebX root directory (5MB): => /WebX => /opt/WebX => /etc/WebX [/opt/WebX]: ** HOME directory for dim_STAT staff [/apps]: /export/home/dimstat ** TEMP directory : /opt/WebX => HOME directory : /export/home/dimstat => TEMP directory : /tmp => HTTP Server Port : 80 => DataBase Server Port : 3306 => Default STAT-service Port : 5000 Is it correct? (y/n): y ** WARNING!!! ** ALL DATA WILL BE DELETED IN: /export/home/dimstat/* !!! ** AS WELL /WebX, /etc/WebX, /opt/WebX !!! Is it correct? (y/n): y ** Cleanup /export/home/dimstat ** Add User... ** WebX Setup... ** dim_STAT Server extract... ** HTTP Server Setup... ** Database Server Setup... ** ADMIN/Tools Setup... ** TEMP directory... ** Permissions... ** Crontab Setup... Sun Microsystems Inc. SunOS 5.11 snv_79a January 2008 Warning - Invalid account: 'dim' not allowed to execute cronjobs ** ** INSTALLATION is finished!!! ** May I create now a dim_STAT-Server start/stop script in /etc/rc*.d? (y/n): y ** =================================================================== ** ** You can start dim_STAT-Server now from /export/home/dimstat/ADMIN: ** ** # cd /export/home/dimstat/ADMIN ** # ./dim_STAT-Server start ** ** and access homepage via Web browser - http://localhost:80 ** ** To collect stats from any Solaris-SPARC/x86 or Linux-x86 machines ** just install & start on them [STAT-service] package... ** ** Enjoy! ;-) ** ** -Dimitri ** =================================================================== root@soldevx> |
After installation, please proceed with installation of the STAT service on the nodes of your choice:
cd dimSTAT pkgadd -d dimSTAT-Solx86.pkg |
Note: the dimSTAT STAT service needs to be installed on all nodes that you want to monitor and record for performance data.
dimSTAT – Configuration
The following steps will guide you through a simple dimSTAT configuration.
First, open a browser and navigate to http://localhost/ You should see a similar screen:
Then click on the dim_STAT Main Page link (Welcome!). Following similar screen should now appear:
Let's start a new collect. Click on the “Start New Collect” link:
Enter the information to start a new collect on the host named localhost. Click the “Continue” button to move to the next screen:
Select the monitoring options of your choice (for example: vmstat, mpstat, iostat, netstat, etc...). Finally click the “Start STAT(s) Collect Now!!!” button to start monitoring.
The simple dimSTAT configuration is now complete. dimSTAT will record the selected data into a local database.
dimSTAT – Analysis
The following steps will guide you through a simple dimSTAT analysis session.
First, open a browser and navigate to http://localhost/ You should see a similar screen:
Next click on the “Welcome!” link to proceed to the next screen:
Click on the “Analyze” button to start analyzing recorded data. You should see a similar screen:
Select “Single-Host Analyze” and click on the “Analyze” button to proceed to the next screen:
Select the second line (with ID = 2) and click on the “VM stat” button to proceed to the next screen:
You should see a similar screen (top part).
Scroll to the bottom of the screen and select the tick boxes “CPU Usr%”, “CPU Sys%”, “CPU Idle%”. Then click on “Start” button to display the results.
et voila! dimSTAT displays a nice little graph that shows the percentage of usr, sys and idle time for the selected system.
Other chapters posted until now:
- Introduction
- Monitoring systems with dimSTAT
- Know your system: System introspection
- System utilsation
- Process introspection
- Process monitoring with prstat
- Managing I/O
- Understanding the network
- Tracing at large
Apr 24 2008, by stefanschneider
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