Chesnay Schepler created FLINK-7069:
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Summary: Catch exceptions for each reporter separately
Key: FLINK-7069
URL: https://issues.apache.org/jira/browse/FLINK-7069
Project: Flink
Issue Type: Improvement
Components: Metrics
Affects Versions: 1.3.1, 1.4.0
Reporter: Chesnay Schepler
Assignee: Chesnay Schepler
Fix For: 1.4.0
The metric system can be effectively disabled by a reporter that throws
exceptions whenever it is notified of adding metrics.
The reason is that the catching of exceptions isn't granular enough, as this
peace of psude code shows:
{code}
addMetric(metric):
try
for reporter in reporters:
reporter.addMetric(metric)
metricQueryService.addMetric(metric)
catch (e)
logError(e)
{code}
If a reporter throws an exception we never even attempt the other reporters,
not notify the MQS which disabled metrics in the WebUI.
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