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Thanks for your interest in Apache Impala (incubating)!

Impala is an Apache-licensed open-source SQL query engine for data stored in Apache Hadoop clusters. We welcome contributions! This document contains some guidelines for contributing to Impala, and suggestions for the kind of contributions you can make.

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When you have a patch that you consider ready for submission, submit it to our code review tool called Gerrit (see Using Gerrit to submit and review patches for details). You’ll see an e-mail go out to the dev@impala.incubator.apache.org list.

As time permits, someone from the core team will review your patch. You will likely need to submit an updated patch with some changes - reply to all the comments in Gerrit at the same time (mark as ‘Done’ those suggestions that you’ve taken without further comment). This process can go back and forth for a while - please don’t be discouraged, you’ll see it happens with all patches!

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We maintain a mailing list at dev@impala.incubator.apache.org, which is the right place for Impala development discussions. Questions about using Impala still belong on the Impala user list, which is user@impala.incubator.apache.org.

Further reading

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