Andras Piros created OOZIE-3381:
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Summary: [coordinator] Enhance logging of
CoordElFunctions.coord_latestRange_sync
Key: OOZIE-3381
URL: https://issues.apache.org/jira/browse/OOZIE-3381
Project: Oozie
Issue Type: Task
Components: coordinator
Affects Versions: 5.1.0
Reporter: Andras Piros
Assignee: Andras Piros
When using [{{$\{coord:latest(n)}}} coordinator EL
function|https://oozie.apache.org/docs/5.0.0/CoordinatorFunctionalSpec.html#a6.6.6._coord:latestint_n_EL_Function_for_Synchronous_Datasets]
inside an input dataset dependency, it's often the case that more information
is needed how many HDFS URIs are being checked for each {{<data-in/>}}.
Right now we don't have this information. While debugging and fine tuning
parameters like {{dataset frequency}}, {{initial-instance}}, and {{data-in}}
{{instance}}, it would be very useful to know how many HDFS roundtrips are
issues by the current settings {{CoordELFunctions#coord_latestRange_sync()}}
having called {{DFSClient#exists()}}. We need appropriate logging there.
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