Robert Joseph Evans created STORM-2621:
------------------------------------------
Summary: STORM-2557 broke sojourn time estimation
Key: STORM-2621
URL: https://issues.apache.org/jira/browse/STORM-2621
Project: Apache Storm
Issue Type: Bug
Components: storm-client
Affects Versions: 2.0.0, 1.1.1, 1.2.0
Reporter: Robert Joseph Evans
STORM-2557 updated the arrival_rate disruptor queue metric to go off of
individual tuples, and not batches of tuples like it did before. But the
sojourn time is also calculated from the arrival rate and the population. But
the population is computed based off of slots, not tuples. So it is now off
proportionally to how many tuples are in a given slot.
We either need a way to compute the tuple population and use that (which would
be a new metric), or we need to keep the old arrival rate metric around to,
just for the sojourn time.
I think the first one is more likely to work out.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
