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PAYARA-4147 MP Metrics now use double for MBean metrics instead of long #4292

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merged 1 commit into from Nov 4, 2019

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Cousjava commented Oct 30, 2019

Description

This is a bug fix

Fixes #4230
CPU Load was being displayed as 0 as gauge was used a long which would round off the actual cpu usage which occurs in the range [0,1]

Testing

Testing Performed

Started domain and admin console. Went to localhost:4848/metrics and checked system_cpu_load gauge, with this PR is is non-zero.

Test suites executed

  • Payara Microprofile TCKs Runner
  • Cargo Tracker

Testing Environment

Zulu JDK 1.8_222 on Ubuntu 19.04 with Maven 3.6.0

This issue was causing CPU load to be displayed as 0.
Fixes #4230
@Cousjava Cousjava added this to the 5.194 milestone Oct 30, 2019
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Cousjava commented Oct 30, 2019

Jenkins test please

@@ -47,7 +47,7 @@
* @author jonathan coustick
* @since 5.193
*/
public class MBeanGuageImpl implements Gauge<Long> {
public class MBeanGuageImpl implements Gauge<Double> {

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jbee Oct 31, 2019

Contributor

Doesn't this mean you change the type of all MBean gauges? Or is this just used by the metric you wanted to change?

@Cousjava Cousjava merged commit c98a1f9 into payara:master Nov 4, 2019
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jbee commented Nov 13, 2019

I suggest we revert this change since now all internal MP metrics are doubles which is not very user friendly either.

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