openstack/deb-sahara
Code Issues Proposed changes

fixing sahara-engine setup in devstack

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when distributed periodics are enabled and zookeeper
as backend is provided, sahara-engine startup fails.
this change is fixing that.

documentation updated with details of how to correctly setup
coordination backend.

Closes-bug: 1597688
Change-Id: Ib1b85dcd4e2b67d1ec9b577d103c689a07b93058
This commit is contained in:
Vitaly Gridnev
2016-06-30 13:06:52 +03:00
parent 6215bc3ca3
commit 27be399fea
3 changed files with 17 additions and 0 deletions
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9
doc/source/userdoc/advanced.configuration.guide.rst
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@@ -218,6 +218,15 @@ to use periodic tasks distribution, the following steps are required:
[DEFAULT]
periodic_coordinator_backend_url=kazoo://IP:PORT
* Tooz extras should be installed. When using Zookeeper as coordination
backend, ``kazoo`` library should be installed. It can be done with pip:
.. sourcecode:: console
pip install tooz[zookeeper]
..
* Periodic tasks can be performed in parallel. Number of threads to run
periodic tasks on a single engine can be set with
``periodic_workers_number`` parameter (only 1 thread will be launched by