GIScience / GIScience/osmalert

Compute distinct users using Flink aggregation

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#1 0 comments 0 reactions 1 assignee Claimed by @mmerdes View on GitHub
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Java
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Description

Currently the distinct user count is achieved via a singleton.
This is potentially unsafe for both concurrent and remote Flink job execution.

TODO:
Use `org.apache.flink.api.common.functions.AggregateFunction` to store the intermediate state safely.

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