Cameron Lee created SAMZA-1872:
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Summary: taskStoreRestorationMetrics uses storeName in the metric
name but the metric is only for the whole task
Key: SAMZA-1872
URL: https://issues.apache.org/jira/browse/SAMZA-1872
Project: Samza
Issue Type: Bug
Reporter: Cameron Lee
In SamzaContainerMetrics, there is a taskStoreRestorationMetrics which is a map
from task name to a gauge. The name of this metric includes the store name, but
the value of the metric doesn't correspond to the specific store. The value of
the metric corresponds to the whole task restoration. This is misleading,
because it will look like the restoration time for a single store is the full
restoration time, and all other stores will have a zero restoration time.
This could be fixed by removing the store name from the metric so it is not
misleading (just report task-level restoration) or by adding the store name as
part of the key to find the metric (report store-level restoration. It would
also be good to move this metric into TaskInstanceMetrics since it is
task-specific anyways.
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