fb5d54d506
Instead of using the zake provided flush method (which does have issues, since it does not guarantee that the associated watches will have been called) instead use a new method which creates nodes, waits for there watches to be triggered, does other work, and then deletes the node and waits for that watcher to be triggered; this is more stable (as it depends on the linearity guarantee of zookeeper and the kazoo threading model). Change-Id: I12fd9c7bcc5cd9009b4175166edfc924e94161bf
TaskFlow
A library to do [jobs, tasks, flows] in a HA manner using different backends to be used with OpenStack projects.
- More information at http://wiki.openstack.org/wiki/TaskFlow
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Testing and requirements
Requirements
Because TaskFlow has many optional (pluggable) parts like persistence backends and engines, we decided to split our requirements into two parts:
- things that are absolutely required by TaskFlow (you can't use
TaskFlow without them) are put to
requirements.txt; - things that are required by some optional part of TaskFlow (you
can use TaskFlow without them) are put to
optional-requirements.txt; if you want to use the feature in question, you should add that requirements to your project or environment; - as usual, things that required only for running tests are put
to
test-requirements.txt.
Tox.ini
Our tox.ini describes several test environments that allow to test TaskFlow with different python versions and sets of requirements installed.
To generate tox.ini, use the toxgen.py script by first installing
toxgen and then provide that script
as input the tox-tmpl.ini file to generate the final tox.ini file.
For example:
$ toxgen.py -i tox-tmpl.ini -o tox.ini
Documentation
http://wiki.openstack.org/wiki/TaskFlow
We also have sphinx documentation in docs/source. To build it,
run:
$ python ./setup.py build_sphinx