Troubleshooting

Installation issues

Follow the Installation instructions to install naarad and its necessary prerequisites. We have found that the steps below should help address most issues encountered during installation of dependencies, specially matplotlib.

Python version

If there are multiple python versions on you system, you should pick a version to work with and use pip for that version.

Let's say you pick python 2.6, then make sure to run pip2.6 when installing requirements.

Pip version

Some machines may have multiple versions of pip installed. If you are facing problems with some naarad requirements (e.g., if pip says requirement is satisfied, but naarad still doesn't work), make sure that you are using the "system" version of pip, usually in /usr/local/bin/pip.

$ which pip
/usr/local/bin/pip

OS dependencies

In general, most issues with naarad installation are due to matplotlib. Here are some steps below to fix matplotlib installation and other general installation issues.

Linux

As sudo/root,

yum install gcc gcc-c++ python-devel freetype-devel libpng-devel libxml2-devel libxslt-devel pip

OSX

Install XQuartz (http://xquartz.macosforge.org/landing/) to satisfy freetype dependency for matplotlib.

numpy installation issues

If pip install numpy fails, most likely you need python development packages from python-dev or python-devel. User your system's package manager to satisfy those requirements (e.g., yum for red-hat and apt-get for ubuntu)

distribute / setuptools issue

Ensure setuptools/distribute are up to date. As sudo/root,

easy_install -U distribute
easy_install -U setuptools
pip install --upgrade distribute
pip install --upgrade setuptools

Python dependencies for Naarad. As sudo/root,

pip install --upgrade pyparsing
pip install --upgrade numpy
pip install --upgrade matplotlib
pip install --upgrade lxml
pip install --upgrade pygal
pip install --upgrade argparse
pip install --upgrade pytz

Package versions

List versions of installed python dependencies for naarad. Versions should match or exceed whats listed in requirements.txt

pip list | grep -e numpy -e matplotlib -e pygal -e lxml -e argparse -e lxml -e pyparsing -e pytz
argparse (1.1)
pyparsing (2.0.1)
pytz (2013.8)
lxml (3.2.4)
pygal (1.2.0)
numpy (1.7.0)
matplotlib (1.3.1)

Runtime Questions

Q. naarad does not recognize the timestamp in my data files.

A. You can find the list of timestamp formats naarad currently supports @ https://github.com/linkedin/naarad/wiki/Supported-Timestamp-Formats