Bug 752207

Summary: MeasurementCollectorRunner should log metric collections which fall behind at WARN instead of DEBUG
Product: [Other] RHQ Project Reporter: Larry O'Leary <loleary>
Component: Plugin ContainerAssignee: RHQ Project Maintainer <rhq-maint>
Status: NEW --- QA Contact: Mike Foley <mfoley>
Severity: low Docs Contact:
Priority: medium    
Version: 3.0.1CC: flo_bugzilla, hrupp
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Description Larry O'Leary 2011-11-08 15:18:58 EST
Currently, when MeasurementCollectorRunner has requests which have a collection scheduled earlier then the current time minus 30 seconds, a debug log message is produced that looks like: "Measurement collection is falling behind... Missed requested time by [" + (System.currentTimeMillis() - requests.iterator().next().getNextCollection()) + "ms]"

(See http://git.fedorahosted.org/git?p=rhq/rhq.git;a=blob;f=modules/core/plugin-container/src/main/java/org/rhq/core/pc/measurement/MeasurementCollectorRunner.java;h=269f6266724f2ea17a771e0fb702d7abba5a0ae8;hb=release-3.0.1#l71)

Such a message seems like something that is potentially harmful or should be addressed and DEBUG level does not seem appropriate for this message. Can this be changed to WARN?
Comment 1 Heiko W. Rupp 2011-11-08 15:41:59 EST
Falling behind is an indication of overload (may be the agent, but also the target server), so this is definitively more important than just debug level.