Monitoring a Hadoop cluster with Ambari
The Apache Ambari project (http://incubator.apache.org/ambari/) is an open source project aiming to ease the management and monitoring of Hadoop clusters. Currently, Ambari supports the management of the software: HDFS, MapReduce, HBase, and Hive. In this recipe, we will outline steps to configure Hadoop Ambari for cluster installation, monitoring, and management.
We assume that the Hadoop cluster has been configured properly. Perform the following steps:
- Enable the NTP server with the following command:
sudo service ntpd start sudo chkconfig ntpd on
- SELinux should have been disabled on the servers where Ambari is installed. We can use the following command to temporarily disable SELinux: