Only getting first attribute for java.lang:type=OperatingSystem

[drpauldixon]

Hello,

I have the following query:

<query objectName="java.lang:type=OperatingSystem" attributes="SystemLoadAverage,OpenFileDescriptorCount" resultAlias="os.#attribute#"/>

However, only the first metric is output:

$ sudo  ngrep -d any -W byline port 2003 | grep --line-buffered .os
stats.vagrant.fam01.os.SystemLoadAverage 0.45 1550861424
stats.vagrant.fam01.os.SystemLoadAverage 0.38 1550861434
stats.vagrant.fam01.os.SystemLoadAverage 0.47 1550861444
stats.vagrant.fam01.os.SystemLoadAverage 0.4 1550861454
stats.vagrant.fam01.os.SystemLoadAverage 0.34 1550861464
stats.vagrant.fam01.os.SystemLoadAverage 0.28 1550861474
stats.vagrant.fam01.os.SystemLoadAverage 0.24 1550861484

I've looked through the examples and can't find anything that looks obviously wrong. If I reverse the order of the attributes, I get whatever attribute is first in the list, but not the other(s).

I've tried versions 1.2.6 and 1.2.8 beta 1. I'm using OpenJDK 1.8 on CentOS 7.

[drpauldixon]

If I change the outputWriter to statsd: <outputWriter class="org.jmxtrans.agent.StatsDOutputWriter"> then I do se all the metrics:

$ sudo ngrep -d any -W byline port 8125 | grep --line-buffered .os
stats.vagrant.fam01.os.SystemLoadAverage:1.12|c
stats.vagrant.fam01.os.OpenFileDescriptorCount:113|c