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datanommer

This is datanommer. It is comprised of only a fedmsg consumer that stuffs every message in a sqlalchemy database.

There are also a handful of CLI tools to dump information from the database.

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Try it out

Using a virtualenv

Using a virtual environment is highly recommended, although this is not a must. Using virtualenvwrapper can isolate your development environment. You will be able to work on the latest datanommer from git checkout without messing the installed datanommer copy in your system.

Install virtualenvwrapper by:

$ sudo yum install python-virtualenvwrapper

Note: If you decide not to use python-virtualenvwrapper, you can always use latest update of fedmsg and datanommer in fedora. If you are doing this, simply ignore all mkvirtualenv and workon commands in these instructions. You can install fedmsg with sudo yum install fedmsg, and datanommer with sudo yum install datanommer.

Development dependencies

Get:

$ sudo yum install python-virtualenv openssl-devel zeromq-devel gcc

Cloning upstream the git repo¶

The source code is on github.

Create a working folder to hold the source files:

$ mkdir source
$ cd source

Get fedmsg:

$ git clone https://github.com/ralphbean/fedmsg.git

Get datanommer:

$ git clone https://github.com/ralphbean/datanommer.git

Note: If submitting patches, you should check Contributing for style guidelines.

Set up virtualenv

Create a new, empty virtualenv and install all the dependencies from pypi:

$ mkvirtualenv source

Note: If the mkvirtualenv command is unavailable try source /usr/bin/virtualenvwrapper.sh on Fedora (if you do not run Fedora you might have to adjust the command a little). You can also add this command to your ~/.bashrc file to have it run automatically for you.

Set up fedmsg:

(source)$ cd fedmsg
(source)$ python setup.py develop

Switch to datanommer:

(source)$ cd ../datanommer

Please note that you should set up the three packages in the following sequence: "datanommer.models", "datanommer.commands" and "datanommer.consumer". Go to the three subfolders in sequence and type:

(source)$ python setup.py develop

Create datanommer db:

(source)$ datanommer-create-db

Try out datanommer

Open three terminals to try out the commands. In each of them, activate your virtualenv with:

$ workon source

In one terminal, type:

(source)$ fedmsg-relay

In another, type:

(source)$ fedmsg-hub

In a third, emit a message, which gets picked up by the relay, rebroadcasted, consumed by datanommer, and stuffed into /tmp/datanommer.db:

$ echo "this is a test" | fedmsg-logger

Use datanommer's clumsy CLI tools to inspect the DB. Was the message stored?:

$ /usr/bin/datanommer-stats
$ /usr/bin/datanommer-dump

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Put all the messages in the postgres

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