This section describes how to set up ODBC connectivity and configure DSNs on several Linux distributions: Debian-based systems, like Ubuntu, and Red Hat Linux platforms, like Red Hat Enterprise Linux (RHEL), CentOS, and Fedora.

Minimum Linux Versions

Here are the minimum supported versions for Red Hat-based and Debian-based systems:

OS	Min. Version
Ubuntu	11.04
Debian	7
RHEL	6.9
CentOS	6.9
Fedora	13
SUSE	12.1

Installing the Driver Dependencies

Run the following commands as root or with sudo to install the necessary dependencies:

• Debian/Ubuntu:
  

  apt-get install libc6 libstdc++6 zlib1g libgcc1

• RHEL/CentOS/Fedora:
  

  yum install glibc libstdc++ zlib libgcc

Here are the corresponding libraries required by the driver:

Debian/Ubuntu Package	RHEL/CentOS/Fedora Package	File
libc6	glibc	linux-vdso.1
libc6	glibc	libm.so.6
libc6	glibc	librt.so.1
libc6	glibc	libdl.so.2
libc6	glibc	libpthread.so.0
libc6	glibc	libc.so.6
libc6	glibc	ld-linux-x86-64.so.2
libstdc++6	libstdc++	libstdc++.so.6
zlib1g	zlib	libz.so.1
libgcc1	libgcc	libgcc_s.so.1

Installing the Driver

You can use standard package management systems to install the driver.

On Debian-based systems, like Ubuntu, run the following command with root or sudo:

dpkg -i /path/to/driver/setup/ApachePhoenixODBCDriverforUnix.deb 

On systems that support the RPM package format, run the following command with root or sudo:

rpm -ivh /path/to/driver/ApachePhoenixODBCDriverforUnix.rpm 

Licensing the Driver

Run the following commands to license the driver. To activate a trial, omit the <key> input.

cd /opt/cdata/cdata-odbc-driver-for-apachephoenix/bin/
sudo ./install-license.sh <key>

Connecting through the Driver Manager

The driver manager loads the driver and passes function calls from the application to the driver. You need to register the driver with the driver manager and you define DSNs in the driver manager's configuration files.

The driver installation registers the driver with the unixODBC driver manager and creates a system DSN. The unixODBC driver manager can be used from Python and from many other applications. Your application may embed another driver manager.

Creating the DSN

See Using unixODBC to install unixODBC and configure DSNs. See Using the DataDirect Driver Manager to create a DSN to connect to OBIEE, Informatica, and SAS.

Before You Connect

Different distributions contain different interfaces and means of starting and stopping the Phoenix Query server, along with different default port settings. In most distributions, the server can be started in the background by running the following command: queryserver.py start.

This will require a running instance of HBase and possibly ZooKeeper as well.

Please consult your distribution's documentation for further information regarding the Phoenix Query Server.

Connecting to Apache Phoenix

The CData ODBC Driver for Apache Phoenix connects to Apache Phoenix via the Phoenix Query Server. Set the URL connection property to connect to Apache Phoenix.

The URL property will typically be the host name or IP address of the server hosting Apache Phoenix followed by the port, for example: http://localhost:8765.

Authenticating to Apache Phoenix

By default, no authentication will be used (plain). If authentication is configured for your server, you can configure one of the following authentication methods.

Basic

If your instance of Apache Phoenix has set up the basic authentication layer, set the following to authenticate:

• AuthScheme: Set this to Basic.
• User: Set this to the user of your Apache Phoenix instance.
• Password: Set this to the password of your Apache Phoenix instance.

Azure HDInsight

To authenticate to Azure HDInsight, set the following:

• AuthScheme: Set this to AzureHDInsight.
• User: Set this to the cluster username that you specified when creating the cluster on Azure HDInsight.
• Password: Set this to the cluster password that you specified when creating the cluster on Azure HDInsight.
• ClusterName: Set this to the name of the cluster containing your Azure HDInsight instance.

All calls are sent to a gateway which picks one of the nodes to handle the request. Accessing the specific nodes is possible if you are running within the internal virtual network of the cluster.

Kerberos

Set the AuthScheme to Negotiate. See Using Kerberos for details on how to authenticate with Kerberos.

Set the Driver Encoding

The ODBC drivers need to specify which encoding to use with the ODBC Driver Manager. By default, the CData ODBC Drivers for Unix are configured to use UTF-16 which is compatible with unixODBC, but other Driver Managers may require alternative encoding.

Alternatively, if you are using the ODBC driver from an application that uses the ANSI ODBC API it may be necessary to set the ANSI code page. For example, to import Japanese characters in an ANSI application, you can specify the code page in the config file '/opt/cdata/cdata-odbc-driver-for-apachephoenix/lib/cdata.odbc.apachephoenix.ini':

[Driver]
AnsiCodePage = 932