Glowroot agent unable to connect to central collector

[Umesh Asodekar (Umya)]

Hello,

We have setup glowroot central and agent on RHEL linux with IBM websphere 8.5.5 server.

Central collector are up and running and both agent and central collector machines has access to each other via specified port

We are using 0.14.2 agent with openjdk 1.8.0.412 and central collector with zulu 11.74.14 jdk.

We are getting below error in agents logs.

I request you to guide me in this case.

2024 08-13 10:21:14.415 ERROR o.g.a.util.LazyPlatformMBeanServer platform mbean server was never created by container 2024-08 13 10:41:16.302

INFO org.glowront Glowrool version : 0.14.2, built 2024-04-06 19:02:00 +0000 2024-00-13 10:41:16.304 INFO org.glowroot Java version: 1.8.0 371 (IBM Corporation / Linux)

2024-08-13 10:41:16.305 INFO org.glowroot Java arga: Xoptionsfile=/opt/IBM/WebSphere/AppServer/java/jre/lib/amd64/comprendrefs/optimm

-Xlockword:mode-default, nolockword-java/lang/String,nolockword-java/util/MapEntry, noLockword-java/util/HashMapsEntry, noLookword-org/apu util/ModifiodMap Entry, noLockword-java/util/ItashtablesEntry, nolockword-java/lang/invoke/Methodrype, noдоскwосо-тата/lang/invoke/Methodliandi, nolock

ava/lang/invoke/CollectHandle, noLockword-java/lang/invoke/Constructorllandle, noLockword-java/lang/invoke/Convorlandie, nolocbaard-java/Laаву ntConversionHandle, nolockword-java/lang/invoke/AsTypeHandle, noLockword-java/lang/invoke/ExplicitCastHandle, nolockword-java/lung/invoke/il.ntu

e, nolockword java/lang/invoke/DirectHandle, noLockword-java/lang/invoke/Receiver Bound Handle, noLockword-java/Lang/invoke/DynamicInvokerliandle, nolockan ava/lang/invoke/FieldHandle, nolockword-java/lang/invoke/FieldGetterHandle, noLockword-java/lang/invoke/FieldsetterHandle, noLockword-Java/lang/invoke/Sta

icFieldCetterkandle , nolockword=java/lang/invoke/StaticFieldSetterHandle, noLockword=java/Lang/invoke/IndirectHandle, nolockword=java/lang/invoke/interic

Bandie, noLockword-java/lang/invoke/Virtualllandle, nolockword-java/lang/invoke/PrimitiveHandin, notockword-java/lang/invoke/invokerxactflandie, noLocgκατσα

va/lang/invoko/InvokeGenericHandle , nolockword-java/lang/invoke/VarargsCollectorHandle, noLockword-java/lang/invoke/Thank Tupie

XX:+Original JDK8HeapSizeCompatibilityMode XX:+LegacyXlogOption - XX:+EnsureHashed:java/lang/Class,java/lang/Thread -Xjelimels629

Xshareclannest name-webspherev85 1.8 64 bundled_g, nonFatal -Xcheck:dump -Xbootclasspath/p:/opt/IBM/WebSphere/AppServer/java/jre/lib/ibroxb.

verbose:ge -Xms12288m Xmx18432m - Xcompressedrefs -Xscmaxaut16M -Xcmx120M Xgcpolicy:balanced -Xgethreads16

- javaagent:/opt/IBM/WebSphere/AppServer/profiles/App5rv01/liferay/glowroot agent/glowroot/glowroot.jar

2024-08-13 10:41:17.743 WARN org.glowrool one or more important classes were loaded before Glowroot instrumentation could be applied to themt

java.util.concurrent.ThreadPoolExecutor$Worker, java.util.concurrent. Executors$RunnableAdapter,

java.util.concurrent. ScheduledThreadPoolExecutor$ScheduledFutureTank, java.util.concurrent.FutureTask 2024-08-13 10:41:17.905 INFO org.glowroot agent id: ITSP4SBICOINAPPSUAT

2074-08-13 10:41:20.090 WARN o.g.agent.central.ContralConnection unable to establish connection with the central collector http://10.191.154.12:4000 (will keep trying...): org.alowroot.agent.shaded.lo.netty.handler.codec.http2.Http2Exception: First couvived frame was not SETTINGS. Hex dump for first 5 bytes: 4854545021

2024-08-13 10:42:17.978 ERROR d.g.a.util.LazyPlatformMBeanServer platform mbean server was never created by container

Thanks and regards,

Umesh Asodekar 

[Umesh Asodekar (Umya)]

Please guide here.