Hive connection reference

Learn about the fields used to create a Hive connection with ThoughtSpot DataFlow.

Here is a list of the fields for a Hive connection in ThoughtSpot DataFlow. You need specific information to establish a seamless and secure connection.

Connection properties

Connection name

Name your connection. Mandatory field.

Example:

HiveConnection

Connection type

Choose the Hive connection type. Mandatory field.

Example:

Hive

HiveServer2 HA configured

Specify this option if using HiveServer2 High Availability. Mandatory field.

HiveServer2 zookeeper namespace

Specify zookeeper namespace as hiveserver2. This is the default value. Mandatory field.
Only when using Hiveserver2 HA.

Example:

hiveserver2

Other notes:

If value is different then, the value can be found from hive-site.xml against the property hive.server2.zookeeper.namespace.

Host

Specify the hostname or the IP address of the Hadoop system. Mandatory field.
Only when not using Hiveserver2 HA.

Example:

[email protected]

Port

Specify the port. Mandatory field.
Only when not using Hiveserver2 HA.

Example:

1234

Hive security authentication

Specifies the type of security protocol to connect to the instance. Based on the type of security select the authentication type and provide details. Mandatory field.

Example:

Kerberos

Valid Values:

Simple, Kerberos, LDAP, SSL, Kerberos & SSL, LDAP & SSL

Default:

Simple

Other notes:

The authentication type setup for the instance can be found from hive-site.xml against the property hive.server2.authentication.

User

Specify the user to connect to Hive. This user must have data access privileges. Mandatory field.
For simple, LDAP, and Simple authentication only.

Example:

userdi

Default:

simple

Password

Specify the password for the User.

Optional field.

Example:

pswrd234%!

Note:

For simple, LDAP authentication only.

Trust store

Specify the trust store name for authentication. Mandatory field.
For SSL and Kerberos & SSL authentication only.

Example:

trust store

Default:

SSL

Trust store password

Specify the password for the trust store. Mandatory field.
For SSL and Kerberos & SSL authentication only.

Example:

password

Default:

SSL

Hive transport mode

Applicable only for hive process engine. This specifies the network protocol used for communicating between hive nodes. Mandatory field.

Example:

binary

Valid Values:

Binary, HTTP

Default:

binary

Other notes:

The Hive transport mode can be identified from hive-site.xml against the property hive.server2.transport.mode.

HTTP path

This is specified as an option when http transport mode is selected. Mandatory field.
For HTTP transport mode only.

Example:

cliservice

Valid Values:

cliservice

Default:

cliservice

Other notes:

The HTTP Path value can be identified from hive-site.xml against the property hive.server2.thrift.http.path.

Hadoop distribution

Provide the distribution of Hadoop being connected to. Optional field.

Example:

Hortonworks

Valid Values:

CDH, Hortonworks, EMR

Default:

CDH

Distribution version

Provide the version of the Distribution chosen above. Optional field.

Example:

2.6.5

Valid Values:

Any Numeric value

Default:

6.3.x

Hadoop conf path

By default, the system picks the Hadoop configuration files from the HDFS. To override, specify an alternate location. Applies only when using configuration settings that are different from global Hadoop instance settings. Optional field.

Example:

$DI_HOME/app/path

Other notes:

An instance where this could be needed is, if the hdfs is encrypted and the location of key files and password decrypt the files is available in the hadoop config files.

DFS HA configured

Specify if using High Availability for DFS. Optional field.
For Hadoop Extract only.

Example:

Checked

DFS name service

Specify the logical name of the HDFS nameservice. Optional field.
For DFS HA and Hadoop Extract only.

Example:

lahdfs

Other notes:

It is available in hdfs-site.xml and defined as dfs.nameservices

DFS name node IDs

Specify a comma-separated list of NameNode IDs. System uses this property to determine all NameNodes in the cluster. XML property name is dfs.ha.namenodes.dfs.nameservices. Optional field.
For DFS HA and Hadoop Extract only.

Example:

nn1, nn2

RPC address for namenode1

Specify the fully-qualified RPC address for each listed NameNode. Defined as dfs.namenode.rpc-address.dfs.nameservices.name node ID 1. Optional field.
For DFS HA and Hadoop Extract only.

Example:

lclabh.example.com:5678

RPC address for namenode2

Specify the fully-qualified RPC address for each listed NameNode. Define as dfs.namenode.rpc-address.dfs.nameservices.name node ID 2. Optional field.

For DFS HA and Hadoop Extract only. Example:

lvclabh.example.com:9876

DFS host

Specify the DFS hostname or the IP address. Optional field.
For Hadoop Extract only, when not using DFS HA.

Example:

[email protected]

DFS port

Specify the associated DFS port. Optional field.
For Hadoop Extract only, when not using DFS HA.

Example:

1234

Default DFS location

Specify the location for the default source/target location. Optional field.
For Hadoop Extract only.

Example:

/tmp

Temp DFS location

Specify the location for creating temp directory.
Optional field.
For Hadoop Extract only.

Example:

/tmp

DFS security authentication

Select the type of security being enabled.
Optional field.
For Hadoop Extract only.

Example:

Kerberos

Valid Values:

Simple, Kerberos

Default:

simple

Hadoop RPC protection

Hadoop cluster administrators control the quality of protection using the configuration parameter hadoop.rpc.protection. Optional field.
When using Kerberos DFS security authentication and Hadoop Extract.

Example:

none

Valid Values:

None, authentication, integrity, privacy

Default:

authentication

Other notes:

It is available in core-site.xml.

Hive principal

Principal for authenticating hive services. Optional field.

Example:

hive/[email protected]

Other notes:

It is available in hive-site.xml

User principal

To authenticate via a key-tab you must have supporting key-tab file which is generated by Kerberos Admin and also requires the user principal associated with Key-tab (Configured while enabling Kerberos).
Optional field.

Example:

[email protected]

User keytab

To authenticate via a key-tab you must have supporting key-tab file which is generated by Kerberos Admin and also requires the user principal associated with Key-tab (Configured while enabling Kerberos).
Optional field.

Example:

/app/keytabs/labuser.keytab

KDC host

Specify KDC Host Name where as KDC (Kerberos Key Distribution Center) is a service than runs on a domain controller server role (Configured from Kerberos configuration-/etc/krb5.conf). Optional field.

Example:

example.example.com

Default realm

A Kerberos realm is the domain over which a Kerberos authentication server has the authority to authenticate a user, host or service (Configured from Kerberos configuration-/etc/krb5.conf). Optional field.

Example:

labhdp.example.com

Queue name

Specify the queue name followed by a coma separated form in yarn.scheduler.capacity.root.queues. Optional field.
For Hadoop Extract only.

Example:

default

Other notes:

It is available in capacity-scheduler.xml

YARN web UI port

Yarn Providing web UI for yarn RM and by default 8088 in use. Optional field.
For Hadoop Extract only.

Example:

8088

Zookeeper quorum host

Specify the value of hadoop.registry.zk.quorum from yarn-site.xml. Optional field.
Only when using Hiveserver2 HA.

Example:

lvclhdp1.example.com:21,lvclabhdp12.example.com:81,lvclabhdp12.example.com:2093

Yarn timeline webapp host

Specify the ip address of yarn timeline service web application. Optional field.

Example:

8188

Yarn timeline webapp port

Specify the port associated with the yarn timeline service web application. Optional field.

Example:

8190

Yarn timeline webapp version

Specify the version associated with the yarn timeline service web application. Optional field.

Example:

v1

JDBC options

Specify the options associated with the JDBC URL.

Optional field.

Example:
jdbc:sqlserver://[serverName[\instanceName][:portNumber]]
Other notes:

Advanced configuration.

Sync properties

Data extraction mode

Specify the extraction type. Optional field.

Example:

Hadoop Extract

Valid Values:

Hadoop Extract, JDBC

Default:

Hadoop Extract

Column delimiter

Specify the column delimiter character. Mandatory field.

Example:

, (comma)

Valid Values:

Any character, (comma, semicolon) or a number. If using a number, system uses its ASCII value as delimiter.

Default:

, (comma)

Null value

Specifies the string literal that should indicate the null value in the extracted data. During the data load the column value matching this string will be loaded as null in the target. Optional field.
For Hadoop Extract only.

Example:

NULL

Valid Values:

NULL

Default:

NULL

Enclosing character

Specify if the text columns in the source data needs to be enclosed in quotes. Optional field.

Example:

DOUBLE

Valid Values:

SINGLE, DOUBLE

Default:

DOUBLE

Escape character

Specify the escape character if using a text qualifier in the source data. Mandatory field.

Example:

\"

Valid Values:

\\, Any ASCII character

Default:

\"

Max ignored rows

Abort the transaction after encountering 'n' ignored rows. Optional field.

Example:

0

Valid Values:

Any numeric value

Default:

0

tsload options

Specifies the parameters passed with the tsload command, in addition to the commands already included by the application. The format for these parameters is:

<param_1_name> = <param_1_value>
Example:
date_time_format = %Y-%m-%d
date_format = %Y-%m-%d;time_format = %H:%M:%S
Valid Values:
null_value = NULL
max_ignored_rows = 0
Default:
max_ignored_rows = 0

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