0004661: JMX counters not as accurate on SPARC/Solaris

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Category

Severity

Reproducibility

Date Submitted

Last Update

0004661

[Resin]

minor

always

07-08-11 13:40

09-06-11 13:47

Reporter

rickHigh

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Platform

Status

closed

Projection

none

OS Version

ETA

none

Fixed in Version

4.0.21

Product Version

Product Build

Summary

0004661: JMX counters not as accurate on SPARC/Solaris

Description

Looked through code. JMX counters use integers and do not synchronize. They feel on Sparc that it will do a read, modify, change, while an Intel processor will do an inplace modify which will be atomic. Thus, they feel that the counts will be off on a Sparc, but not on an Intel platform. They use a Sparc platform.

Spoke to Scott. He plans on solving this with AtomicInteger in JDK 5 and above. Should be an easy fix.

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Issue History
Date Modified	Username	Field	Change
07-08-11 13:40	rickHigh	New Issue
09-01-11 11:52	ferg	Project	Quercus => Resin
09-06-11 13:47	ferg	Assigned To	=> ferg
09-06-11 13:47	ferg	Status	new => closed
09-06-11 13:47	ferg	Resolution	open => fixed
09-06-11 13:47	ferg	Fixed in Version	=> 4.0.21

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