- Apache Ambari server
- Application Timeline Server for Apache YARN
- Job History Server for Hadoop MapReduce
- Apache Livy
These infrastructure consists of a number of services and software components, some of which are designed by Microsoft. The following components are unique to the HDInsight platform:
- Slave failover controller
- Master failover controller
- Slave high availability service
- Master high availability service
There are also other high availability services, which are supported by open source Apache reliability components. These components are also present on HDInsight clusters:
- Hadoop File System (HDFS) NameNode
- YARN ResourceManager
- HBase Master
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