How to install Websphere MQ on Linux

Linux

Hello HaxorFans, today i'm writing this article on how to install Websphere MQ on a Linux server, i came with this decision after posting my MQ Introduction on LinkedIn and received some comments about 

this Linux Installation.

Installing MQ can be a very easy task, but it is not only installation, some best practice configurations and Kernel performance tasks must be applied after installation.

The Software

Well first of all we need the MQ Software, you will have to buy a license or get a Free or Trial version of MQ, for more information, please visit: IBM WEBSPHERE MQ 

After you get your MQ Software, please put the package you downloaded into /home/youruserid

youuserid refers to the id you use to login and extract it.

The Pre-Installation

Service Accounts:

Before we install WMQ we will need to create the user and group that we will use as Service Account for MQ.

Create Group: groupadd mqm

Create user: useradd -g mqm mqm

FileSystems:

We will need to create 2 mqm folders for MQ installation, one in /var and another in /opt.

Both will have to be owned by mqm group and have at least 500 MB each.

cd /opt/

mkdir mqm

chown -R mqm:mqm mqm

cd /var/

mkdir mqm

chown -R mqm:mqm mqm

The Installlation

First you will need to navigate to the extracted MQ folder you downloaded, and then run this command:

./mqlicense -accept

If you get a JRE Java Error, please use this commands:

./mqlicense -accept -jre PATH_TO_JRE

rpm -ivh MQSeriesServer-x.x.x-x.i386.rpm MQSeriesRuntime-x.x.x-x.i386.rpm

where x.x.x-x is the version number like 7.0.1-1

The Configuration

After the MQ has been installed we will need to configure some Kernel values for best performance.

 Locate Files:

First step will be to locate the following files and create a Backup and if files don’t exist, create it.

/etc/sysctl.confback

File to edit

/etc/sysctl.conf

Command to Backup

cp /etc/sysctl.conf /etc/sysctl.confback

Command to create if non-existant

Touch /etc/sysctl.conf

/etc/security/limits.conf

File to edit

/etc/security/limits.conf

Command to Backup

cp /etc/security/sysctl.conf /etc/limits.confback

Command to create if non-existant

Touch /etc/security/limits.conf

Edit File:

If the file exists or it was created manually, please add the following lines:

NOTE: If the values after the equal sign (=) in an already existant file are higher that the ones described below, leave the higher values.

/etc/sysctl.conf

Kernel: kernel.shmmni = 4096

kernel.shmall = 2097152

kernel.shmmax = 268435456

kernel.sem = 500 256000 250 1024

fs.file-max = 524288 

tcp_keepalive_time = 300

/etc/security/limits.conf

mqm              hard    nofile          10240

mqm              soft    nofile          10240

mqm             hard    nproc           4096

mqm             soft    nproc           4096

Reload Config Files

In order to apply the changes we made on the above files we will need to run the following command:

sysctl -p

Rollback

In order to rollback, please run the following commands:

/etc/sysctl.confback

rm /etc/sysctl.conf

mv /etc/sysctl.confback /etc/sysctl.conf

/etc/security/limits.confback

rm /etc/security/limits.conf

mv/etc/security/limits.confback /etc/security/limits.conf  

    

      After this steps have been followed, you will have a MQ Server installation complete on your server, if you are interested on the Operational Commands for MQ, please go to Websphere MQ Introduction