dev-docs/DevelopersQuickHackSheet.md

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Apache Flume: Developers Quick Hack Sheet
=========================================

Developers Quick Hack Sheet
===========================

### Get the Code


```
git clone https://github.com/apache/flume.git flume-local
cd flume-local
git checkout trunk
```


for a particular release:


```
git clone https://github.com/apache/flume.git flume-local
cd flume-local
git checkout <RELEASE>
```


-   If you want to fix a issue, grab the Jira
    (<https://issues.apache.org/jira/browse/FLUME>) you want to fix
-   If you have a new feature / improvement, open a new Jira with the
    Tag "Improvement" / "Feature"

### Work With Your Code

-   Make your code changes
-   Test. Test again and we forget to mention: Test
-   If your code change works make a patch


```
git diff --no-prefix > /Path/to/your/patch/JIRA-ID.patch
```


-   If you want to work at other patches, go and stash your work:


```
git stash (will save your branch and reset the working directory)
```


-   Attach the JIRA-ID.patch to the Jira



-   Open a review request at <https://reviews.apache.org> against
    flume-git
    -   Fill in the field Bug-ID the Jira-ID to link both together
    -   Explain your code
    -   Add unit tests
        -   **please note, patches without a working unit test will be
            rejected and not commited**
    -   fill out all the fields
    -   Check your Diff by clicking "View Diff"
        -   **if you see some red fields, check your syntax and fix this
            please**
    -   review your request
    -   publish



-   Post the review link into the Jira
-   Write Notes into the Jira, regarding your work

### Known Build Issues


```
Exception in thread "MainThread" java.lang.OutOfMemoryError: PermGen space
```


Maven2 Issue, start your build with:


```
MAVEN_OPTS="-Xms512m -Xmx1024m -XX:PermSize=256m -XX:MaxPermSize=512m" mvn package -DskipTests
```


Jira:
[FlUME-1256](https://issues.apache.org/jira/browse/FLUME-1256)

Thank you for contributing Flume!
=================================