Operations Guide

10.1 HotFix 1
- 10.5 HotFix 2
- 10.5 HotFix 1
- 10.5
- 10.2 HotFix 1
- 10.2
- 10.1
- 10.0 HotFix 1
- 10.0

Back Next

Configuring the ZooKeeper Properties

The installer creates a configuration file named

zoo.cfg

that contains the ZooKeeper properties. You can customize the default properties of ZooKeeper based on your environment and requirement.

For more information about the ZooKeeper properties, see the ZooKeeper documentation.

Open the

zoo.cfg

file from the following directory:

On Windows:

<MDM Registry Edition Installation Directory>\bin

On UNIX.

<MDM Registry Edition Installation Directory>/bin

Customize the following properties based on your requirement:

tickTime: Length of a single tick, in milliseconds. ZooKeeper uses tick as the basic time unit to regulate timeouts. Default is 2000.
initLimit: Number of ticks after which the ZooKeeper server times out during the synchronization process. Default is 10.
syncLimit: Maximum number of ticks for the followers to wait to synchronize with the leader before the followers time out. Default is 5.
dataDir: Absolute path for the ZooKeeper to store the in-memory snapshots of the data and the transactional log of updates to the database.
clientPort: Port on which the ZooKeeper server listens for client connections.
maxClientCnxns: Maximum number of concurrent connections that a single client can make to a single member of the ZooKeeper ensemble. Default is 10.

If you use an ensemble of ZooKeeper servers, perform the following tasks:

Add the following server entries to the

zoo.cfg

file:

server.1=<Host Name1>:<Port Number1>:<Port Number2>
server.2=<Host Name1>:<Port Number1>:<Port Number2>
server.3=<Host Name1>:<Port Number1>:<Port Number2>
...
server.N=<Host Name1>:<Port Number1>:<Port Number2>

Host Name

refers to the host name of the ZooKeeper server, and

Port Numbers 1 and 2

refers to the ports that the ZooKeeper uses to communicate between the ZooKeeper servers.

For example, the following entries indicate an ensemble of three ZooKeeper servers:

server.1=PriHost:18046:18047
server.2=SecHost:18049:18050
server.3=TerHost:18052:18053

Create a file named

myid

in the directory that you configure for the

dataDir

property in the

zoo.cfg

file.

Open the

myid

file, specify the ID of the server based on the

server.<Number>

entry in the

zoo.cfg

file, and save the

myid

file.

For example, if the host name is specified as

server.2

in the

zoo.cfg

file, specify 2 in the

myid

file.

In the other ZooKeeper servers, add the same server entries in the

zoo.cfg

file, create the

myid

file, and enter the corresponding server ID to the

myid

file.

High Availability with Apache ZooKeeper

Download Guide

Watch

Comments

Communities

Knowledge Base

Success Portal

0 COMMENTS

We’d like to hear from you! Log in to comment.

Rename Saved Search

Table of Contents

Operations Guide

Operations Guide

Configuring the ZooKeeper Properties

Configuring the ZooKeeper Properties