Starting CDH Services

You need to start and stop services in the right order to make sure everything starts or stops cleanly.

START services in this order:

Order Service Comments For instructions and more information

1

ZooKeeper

Cloudera recommends starting ZooKeeper before starting HDFS; this is a requirement in a high-availability (HA) deployment. In any case, always start ZooKeeper before HBase.

Installing the ZooKeeper Server Package and Starting ZooKeeper on a Single Server; Installing ZooKeeper in a Production Environment; Deploying HDFS High Availability; Configuring High Availability for the JobTracker (MRv1)

2

HDFS

Start HDFS before all other services except ZooKeeper. If you are using HA, see the CDH 5 High Availability Guide for instructions.

Deploying HDFS on a Cluster; HDFS High Availability

3

HttpFS

 

HttpFS Installation

4a

MRv1

Start MapReduce before Hive or Oozie. Do not start MRv1 if YARN is running.

Deploying MapReduce v1 (MRv1) on a Cluster; Configuring High Availability for the JobTracker (MRv1)

4b

YARN

Start YARN before Hive or Oozie. Do not start YARN if MRv1 is running.

Deploying MapReduce v2 (YARN) on a Cluster

5

HBase

 

Starting and Stopping HBase; Deploying HBase in a Distributed Cluster

6

Hive

Start the Hive metastore before starting HiveServer2 and the Hive console.

Installing Hive

7

Oozie

 

Starting the Oozie Server

8

Flume 1.x

 

Running Flume

9

Sqoop

 

Sqoop Installation and Sqoop 2 Installation

10

Hue

 

Hue Installation