# Cloudera Impala

## Cloudera Impala

You can query data on Hadoop using the low latency Impala implementation of SQL. For more information see [Apache Impala Overview](https://docs.cloudera.com/runtime/7.2.18/impala-overview/topics/impala-overview.html)

Impala itself has become an Apache project which you can find at the [Apache Impala Homepage](https://impala.apache.org).

Check the [documentation](https://docs.cloudera.com/documentation/other/connectors/impala-jdbc/latest.html) to see how you can connect to Cloudera Impala using Kerberos security. Set the required options in the Options tab of your relational database connection metadata:

* AllowSelfSignedCerts=1
* AuthMech=1
* KrbHostFQDN=`IMPALA HOSTNAME`
* KrbRealm=`Kerberos Realm`
* KrbServiceName=`Impala Service name`
* SSL=1
* principal=`Principal name`

| Option           | Info                                                                                                                                                                  |
| ---------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Type             | Relational                                                                                                                                                            |
| Driver           | Use Cloudera Impala Drivers. You can [Download](https://www.cloudera.com/downloads/connectors/impala/jdbc/2-6-35.html) the latest versions from the Cloudera website. |
| Version Included | None                                                                                                                                                                  |
| Hop Dependencies | Cloudera Impala Database Plugin                                                                                                                                       |
| Documentation    | [Documentation Link](https://docs.cloudera.com/documentation/other/connectors/impala-jdbc/latest.html)                                                                |
| JDBC Url         | jdbc:impala://hostname:port;principal=principalName                                                                                                                   |
| Driver folder    | \<Hop Installation>/lib/jdbc                                                                                                                                          |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.primeur.com/data-shaper-1.21/knowing-the-data-shaper-designer/relational-database-connections/cloudera-impala.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.