3. Set Up the Configuration Files

There are several configuration files that need to be set up for HBase and ZooKeeper.

3.1. Extract the HBase/ZooKeeper Configuration Files

From the file you downloaded in Download Companion Files, extract the files in configuration_files/hbase and configuration_files/ zookeeper directories to two temporary directories.

3.2. Modify the Configuration Files

In the respective temporary directories, locate the following files and modify the properties based on your environment. Search for TODO in the files for the properties to replace.

Table 9.1. zoo.cfg

Variable	Example	Description
server.1	`$zookeeper.server1.full.hostname:2888:3888`	Enter the 1st ZooKeeper hostname
server.2	`$zookeeper.server2.full.hostname:2888:3888`	Enter the 2nd ZooKeeper hostname
server.3	`$zookeeper.server3.full.hostname:2888:3888`	Enter the 3rd ZooKeeper hostname

Table 9.2. hbase-site.xml

Variable	Example	Description
hbase.rootdir	`hdfs://$namenode.full.hostname:8020/apps/hbase/data`	Enter the NameNode server FQDN.
hbase.master.info.bindAddress	`$hbase.master.full.hostname`	Enter the HBase Master server FQDN
hbase.zookeeper.quorum	`server1.full.hostname,server2.full.hostname, server3.full.hostname`	Comma separated list of Zookeeper servers (match to what is specified in zoo.cfg but without portnumbers)

3.3. Copy the Configuration Files

Replace the installed ZooKeeper configs with the modified ZooKeeper configuration files and set appropriate permissions.
```
rm -rf $ZOOKEEPER_CONF_DIR/* 
```
<Copy all the config files to $ZOOKEEPER_CONF_DIR>
```
chown -R $ZOOKEEPER_USER:$HADOOP_GROUP $ZOOKEEPER_CONF_DIR/../  
chmod -R 755 $ZOOKEEPER_CONF_DIR/../
```
Replace the installed HBase configs with the modified HBase configuration files and set appropriate permissions.
```
rm -rf $HBASE_CONF_DIR
```
<Copy all the config files to $HBASE_CONF_DIR >
```
chown -R $HBASE_USER:$HADOOP_GROUP $HBASE_CONF_DIR/../  ;
chmod -R 755 $HBASE_CONF_DIR/../
```

Legal notices