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Connecting the Dynamic Data Masking Server to ZooKeeper on Server Startup

Create a script file that connects the Dynamic Data Masking Server to ZooKeeper when the Dynamic Data Masking Server starts.

Create a parent node in ZooKeeper.

Example:

server zookeeper create -path /DDM

The parent node contains the Dynamic Data Masking clusters in ZooKeeper. The parent node is a permanent node that continues to exist even after ZooKeeper is restarted.

Create a regular parent node for each database cluster if none exists.

server zookeeper create -path /DDM

To automatically connect the Dynamic Data Masking Server to Zookeeper and create ephemeral nodes, create a script file with the name

serverStarting.bat

serverStarting.sh

Otherwise, you can manually run the ZooKeeper commands after you start the server.

Provide the following information in the

serverStarting

script file:

The

connect

command and parameters to connect the Dynamic Data Masking Server and ZooKeeper.

The

create

command and parameters to create an ephemeral node for each database server.

Initialize the ephemeral nodes with specific URLs. The URL must include the host and port of the Dynamic Data Masking Server.

The database driver uses the URL to connect to the database cluster through Dynamic Data Masking.

Linux Example:

#!/bin/sh
cd `dirname $0`
. ./server zookeeper connect -url 'zookeeper_ensemble'
. ./server zookeeper create -type EPHEMERAL -path /<DDM cluster>/<name of ephemeral node> -data hive.server2.instance.uri=<ddmhost1>:10001;hive.server2.authentication=KERBEROS;hive.server2.transport.mode=binary;hive.server2.thrift.sasl.qop=auth;hive.server2.thrift.bind.host=<ddmhost1>;hive.server2.thrift.port=<DDM Hive service port>;hive.server2.use.SSL=false;hive.server2.authentication.kerberos.principal=<hive service principal for ddmhost1>

Microsoft Windows Example:

@echo off
REM *********************************************
REM Start DDM Server
REM *********************************************
CALL server start

REM *********************************************
REM Connect DDM Server to Zookeeper
REM *********************************************
CALL server zookeeper connect -url '<zookeeper_ensemble>'



REM *********************************************
REM Create a new ephemeral node for the DDM Server
REM *********************************************
CALL server zookeeper create -type EPHEMERAL -path /<DDM cluster>/<name of ephemeral node> -data "hive.server2.instance.uri=<ddmhost1>:<DDM Hive service port>;hive.server2.authentication=KERBEROS;hive.server2.transport.mode=binary;hive.server2.thrift.sasl.qop=auth;hive.server2.thrift.bind.host=<ddmhost1>;hive.server2.thrift.port=<DDM Hive service port>;hive.server2.use.SSL=false;hive.server2.authentication.kerberos.principal=<hive service principal for ddmhost1>"

Save the

serverStarting

script file in the Dynamic Data Masking installation directory.

When the Dynamic Data Masking Server starts, the server runs the

serverStarting

script file.

Repeat steps 3-5 for other Dynamic Data Masking servers in the cluster.

Hive Connectivity with Apache ZooKeeper and Dynamic Data Masking

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