GitHub user F30 opened a pull request:
https://github.com/apache/storm/pull/1019
Document that persistentAggregate() does not work with generic Aggregators
This should be pretty much self-explanatory.
I couldn't find the information anywhere in the docs so far, but I came to
this conclusion because `Stream` only has `persistentAggregate()` methods for
`CombinerAggregator`s and `ReducerAggregator`s. Also, I can't really imagine a
trivial way to store the state of a generic `Aggregator`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/F30/storm persistentAggregate-docs
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/storm/pull/1019.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 #1019
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commit 3cbabe0c81377d3fa8148df18d6ab702c2f9f7ca
Author: Felix Dreissig <f...@f30.me>
Date: 2016-01-16T00:15:36Z
Document that persistentAggregate() does not work with generic Aggregators
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