GitHub user liyinan926 opened a pull request:
https://github.com/apache/helix/pull/34
Added new DataSource values LIVEINSTANCES and INSTANCES and made
CriteriaEvaluator support them
Currently there are two types of `DataSource`: `EXTERNALVIEW` and
`IDEALSTATES`. However, they don't work well with the task execution framework
for which tasks as resources may come and go. An issue I noticed and also
confirmed with @lei-xia and @kishoreg is broadcasting a user-defined message to
a group of participants does not work since the `CriteriaEvaluator` selects
nothing after evaluating a criteria that targets all participants.
This PR adds two new `DataSource` types: `LIVEINSTANCES` and `INSTANCES`
and made `CriteriaEvaluator` support them.
Signed-off-by: Yinan Li <[email protected]>
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/liyinan926/helix master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/helix/pull/34.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #34
----
commit 70962a0de5a58569e3f4f4d3f9533f540783db66
Author: Yinan Li <[email protected]>
Date: 2015-08-28T20:33:04Z
Added new DataSource values LIVEINSTANCES and INSTANCES and made
CriteriaEvaluator support them
Signed-off-by: Yinan Li <[email protected]>
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