lyz

Monitoring program for lab sequencers.

lyz is a BYOC automation program framework; Bring Your Own Code.

Designed for use with NYU-Molecular-Pathology/protocols, this program is used to check on the status of the various DNA sequencers used by the lab. New data or sequencing runs found will be processed automatically, using the methods defined in the program.

lyz is also designed for modularity, extensibility, and flexibility. The program's core usage is in its monitor.py script, which will run submodules and tasks set by the end user.

Installation

git clone --recursive https://github.com/NYU-Molecular-Pathology/lyz.git

Usage

To manually run the program, just run the monitor.py script:

lyz/monitor.py

To run lyz automatically, set up a cron job as shown in the included cron directory, filling in the cron/.profile and cron/run.job files as appropriate for your system & user account.

Adding Your Own Monitor Tasks

You can add your own tasks to lyz by creating a Python submodule with the code you wish to run. You can use the included NGS580_demultiplexing submodule for inspiration.

1. Create a Python file in the lyz subdirectory (e.g. lyz/my_submodule.py)

2. If needed, add a file for static configuration settings in lyz/config and load them in the lyz/config/init.py script.

3. Add a command in the main function of monitor.py that will run the main function of your submodule.

Features

• NOTE: Many program features have been packaged in the util Python module.

Logging

Logging has been implemented at several levels throughout the program. The main program modules use a static logging configuation loaded from the file lyz/logging.yml, which saves output to the lyz/logs subdirectory by default. To facilitate logging in an end-user's customized modules, the log submodule contains many functions for building and interacting with Python logging objects. Additionally, the classes submodule contains the LoggedObject class which can be used to create objects which have their own logging instances.

Email

The mutt submodule is a flexible wrapper to the mutt system program, and can be used to send emails. A common use-case is send the contents of a submodule or object's log file as the body of an email to users as a notification of program completion. File attachments can also be sent, allowing you to also send some of the files created by your program with the email.

Qsub

The qsub submodule includes the Job class for submitting jobs to a compute cluster and monitoring them for completion. Currently configured for the phoenix system at NYULMC running SGE.

Git

The git submodule contains functions for interacting with git installed on the system. For example, it is possible to check the current repository's branch information, in case you want prevent the program from running if not on the master branch.

Find

The find submodule contains the find function which can be used to search the system for desired files or directories. This function has been modeled off of the standard GNU find program and supports multiple inclusion and exclusion patterns, and search depth limits, among others.

Software

Designed and tested with Python 2.7

Designed for use on Linux system with Sun Grid Engine (SGE) installed

Some modules may make system calls relying on standard GNU utilities

Credits

lyz uses sh.py as a dependency.