Github user wujinhu commented on the issue:
https://github.com/apache/incubator-eagle/pull/430
Please review https://github.com/apache/incubator-eagle/pull/419 first.
This is the second step of the aggregation framework. This step uses
results of the job metrics by each minute that generated by the first step.
The framework is a storm topology. The spout decides which time range of
job metrics needs to be aggregated, divide the time range into several
pieces(For example, each piece is one hour) and emits these pieces to aggregate
bolts.
The aggregate bolts aggregate the time range piece of job metrics that the
spout assigns to them.
In aggregate bolts, they fetch job metrics by eagle server api and write
the aggregate results back to eagle server.
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