rmatharu commented on a change in pull request #978: SAMZA-1733 : Making
MetricsSnapshotReporter look for appclass then taskclass
URL: https://github.com/apache/samza/pull/978#discussion_r269684095
##########
File path:
samza-core/src/main/scala/org/apache/samza/metrics/reporter/MetricsSnapshotReporterFactory.scala
##########
@@ -45,10 +45,8 @@ class MetricsSnapshotReporterFactory extends
MetricsReporterFactory with Logging
val jobId = config
.getJobId
- val taskClass = config
- .getTaskClass
- .orElse(Option(new ApplicationConfig(config).getAppClass()))
- .getOrElse(throw new SamzaException("No task or app class defined for
config."))
+ val taskClass = Option(new ApplicationConfig(config).getAppClass())
Review comment:
At LI, task.class is defined to empty in the global-app-def, but app.class
is not predefined. That necessitates this fix.
The logic here is simple, if there is an app.class, use it. If there is
none, use task.class, if there is no task.class (and no app.class), raise an
exception.
I dont see any point in logging a warning, since we can't
improve-upon/act-upon it.
Task.subtask.class is not valid post samza 1.0. This change only impacts 1.0
and beyond users.
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