Deploying Storm

Obtaining Storm

1. Download the Storm archive.

   1	wget https://archive.apache.org/dist/storm/apache-storm-1.2.1/apache-storm-1.2.1.tar.gz

2. Place apache-storm-1.2.1.tar.gz in the /usr/local directory on server1 and decompress it.

   1 2	mv apache-storm-1.2.1.tar.gz /usr/local tar -zxvf apache-storm-1.2.1.tar.gz

3. Create a soft link for subsequent version updates.

   1	ln -s apache-storm-1.2.1 storm

Setting Storm Environment Variables

1. Open the configuration file.

   1	vi /etc/profile

2. Press i to enter the insert mode and add Storm to environment variables.

   1 2	export STORM_HOME=/usr/local/storm export PATH=$STORM_HOME/bin:$PATH

3. Press Esc, type :wq!, and press Enter to save the file and exit.
4. Make the environment variables take effect.

   1	source /etc/profile

Modifying the Storm Configuration File

All Storm configuration files are stored in the $STORM_HOME/conf directory.

1. Go to the Storm configuration directory.

   1	cd $STORM_HOME/conf

2. Modify the storm.yaml file.

   1	vi storm.yaml

3. Press i to enter the insert mode and modify the file as follows:

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   storm.zookeeper.servers: - "agent1"# Change it to the corresponding IP address. - "agent2" - "agent3" storm.zookeeper.port: 2181 storm.local.dir: "/usr/local/storm/stormLocal"# Manually create the directory. nimbus.seeds: ["server1"]# Change it to the corresponding IP address. supervisor.slots.ports:# Set the number of slots as required. - 6700 - 6701 - 6702 - 6703 storm.health.check.dir: "healthchecks" storm.health.check.timeout.ms: 5000

4. Press Esc, type :wq!, and press Enter to save the file and exit.

Synchronizing the Configuration to Other Nodes

1. Copy apache-storm-1.2.1 to the /usr/local directory on agent1 to agent3.

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   scp -r /usr/local/apache-storm-1.2.1 root@agent1:/usr/local scp -r /usr/local/apache-storm-1.2.1 root@agent2:/usr/local scp -r /usr/local/apache-storm-1.2.1 root@agent3:/usr/local

2. Log in to agent1 to agent3 and create soft links for apache-storm-1.2.1.

   1 2	cd /usr/local ln -s apache-storm-1.2.1 storm