WildFly 28.0.0.Final - WARNING Failed to publish metrics to OTLP receiver

[Roger Lee]

Update to 28.0.0.Final & App appears to run fine. Get loads of WARNING on:

WARNING [io.micrometer.registry.otlp.OtlpMeterRegistry] (otlp-metrics-publisher) Failed to publish metrics to OTLP receiver: java.net.ConnectException: Connection refused

at java.base/sun.nio.ch.Net.pollConnect(Native Method)

at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:673)

at java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(NioSocketImpl.java:542)

at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:585)

at java.base/java.net.Socket.connect(Socket.java:666)

at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:178)

at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:532)

at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:637)

at java.base/sun.net.www.http.HttpClient.<init>(HttpClient.java:280)

at java.base/sun.net.www.http.HttpClient.New(HttpClient.java:385)

at java.base/sun.net.www.http.HttpClient.New(HttpClient.java:407)

at java.base/sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1308)

at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1241)

at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1127)

at java.base/sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:1056)

at java.base/sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1429)

at java.base/sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1400)

at io.mic...@1.9.3//io.micrometer.core.ipc.http.HttpUrlConnectionSender.send(HttpUrlConnectionSender.java:98)

at io.mic...@1.9.3//io.micrometer.core.ipc.http.HttpSender$Request$Builder.send(HttpSender.java:305)

at io.mic...@1.9.3//io.micrometer.registry.otlp.OtlpMeterRegistry.publish(OtlpMeterRegistry.java:109)

at io.mic...@1.9.3//io.micrometer.core.instrument.push.PushMeterRegistry.publishSafely(PushMeterRegistry.java:54)

at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)

at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:358)

at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)

at java.base/java.lang.Thread.run(Thread.java:1623)

[Jason Lee]

That is the Micrometer extension complaining, and it shouldn't happen out of the box, as Micrometer is opt-in, so it's either manually been enabled or, perhaps, you're running a previous WildFly Preview 27 config. Do either of those sound correct?

Regardless, you can disable that subsystem and the errors should go away:

$ jboss-cli.sh -c

[standalone@localhost:9990 /] /subsystem=micrometer:remove()

[standalone@localhost:9990 /] /extension=org.wildfly.extension.micrometer:remove()

[standalone@localhost:9990 /] reload

[standalone@localhost:9990 /] exit

Jason Lee

Principal Software Engineer

Red Hat JBoss EAP

--
You received this message because you are subscribed to the Google Groups "WildFly" group.
To unsubscribe from this group and stop receiving emails from it, send an email to wildfly+u...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/wildfly/37b55ef0-aba7-4091-bc90-1c5e76269aa3n%40googlegroups.com.

[Roger Lee]

connect
./jboss-cli.sh -c etc.

Fixed. TIA. 

[Jason Lee]

I'm a little confused by the emails. Is this a problem that still persists? It looks like something may be wonky with the Preview configs, which I'll dig into, but, fwiw, I am working on a seemingly related issue:

https://issues.redhat.com/browse/WFLY-17961

Jason Lee

Principal Software Engineer

Red Hat JBoss EAP

To view this discussion on the web visit https://groups.google.com/d/msgid/wildfly/e6144051-06b7-4034-9575-798356123ca6n%40googlegroups.com.

[Roger Lee]

It's all working. I responded with what I changed to fix. Looks like my message has been deleted/changed. 

[Jason Lee]

Ok. Great. Yeah, things were formatted oddly or something. Regardless, glad you got it working. I'll try to figure out why you had to do that in the first place. :)

Jason Lee

Principal Software Engineer

Red Hat JBoss EAP

To view this discussion on the web visit https://groups.google.com/d/msgid/wildfly/87a883d1-90dc-41d1-a2be-a88b461f7d01n%40googlegroups.com.