Java agent unable to connect to saas controller

[Naveen_Reddy]

Hello Team,

I'm using docker image of tomcat to deploy an spring boot app and configured the java agent as per instructions.
All though I see the following message

[AD Agent init] 02 Nov 2023 13:30:10,183 INFO JavaAgent - Started AppDynamics Java Agent Successfully.

Right after that I see the following error. I replaced the first part of saas controller name to test to sanitise the original url. There's no proxy in my case. Not sure what is happening


AD Thread Pool-Global0] 02 Nov 2023 13:19:18,496 ERROR ConfigurationChannel - Fatal transport error while connecting to URL [/controller/instance/0/applicationConfiguration]: java.net.UnknownHostException: https://test.saas.appdynamics.com : Name or service not known
[AD Thread Pool-Global0] 02 Nov 2023 13:19:18,496 WARN ConfigurationChannel - Could not connect to the controller/invalid response from controller, cannot get initialization information, controller host [https://test.saas.appdynamics.com ], port[443], exception [Fatal transport error while connecting to URL [/controller/instance/0/applicationConfiguration]]
[AD Thread Pool-Global0] 02 Nov 2023 13:19:18,496 WARN AgentErrorProcessor - Agent error occurred, [name,transformId]=[com.singularity.CONFIG.ConfigurationChannel - java.net.UnknownHostException,2147483647]
[AD Thread Pool-Global0] 02 Nov 2023 13:19:18,496 WARN AgentErrorProcessor - 3 instance(s) remaining before error log is silenced
[AD Thread Pool-Global0] 02 Nov 2023 13:19:18,496 ERROR ConfigurationChannel - Exception: https://test.saas.appdynamics.com : Name or service not known
java.net.UnknownHostException: https://test.saas.appdynamics.com : Name or service not known
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) ~[?:1.8.0_212]
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:929) ~[?:1.8.0_212]
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1324) ~[?:1.8.0_212]
at java.net.InetAddress.getAllByName0(InetAddress.java:1277) ~[?:1.8.0_212]
at java.net.InetAddress.getAllByName(InetAddress.java:1193) ~[?:1.8.0_212]
at java.net.InetAddress.getAllByName(InetAddress.java:1127) ~[?:1.8.0_212]
at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:112) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:376) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.13.jar:4.5.13]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:72) ~[httpclient-4.5.13.jar:4.5.13]
at com.singularity.ee.util.httpclient.SimpleHttpClientWrapper.executeHttpOperation(SimpleHttpClientWrapper.java:302) ~[appagent.jar:?]
at com.singularity.ee.util.httpclient.SimpleHttpClientWrapper.executeHttpOperation(SimpleHttpClientWrapper.java:217) ~[appagent.jar:?]
at com.singularity.ee.rest.RESTRequest.sendRequestTracked(RESTRequest.java:395) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.rest.RESTRequest.sendRequest(RESTRequest.java:337) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.rest.controller.request.AControllerRequest.sendRequest(AControllerRequest.java:129) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.rest.controller.request.ABinaryControllerRequest.sendRequest(ABinaryControllerRequest.java:36) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.agent.appagent.kernel.config.xml.ConfigurationChannel.registerApplicationServer(ConfigurationChannel.java:1437) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.agent.appagent.kernel.config.xml.ConfigurationChannel.access$100(ConfigurationChannel.java:122) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.agent.appagent.kernel.config.xml.ConfigurationChannel$UnregisteredConfigurationState.nextTransition(ConfigurationChannel.java:785) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.agent.appagent.kernel.config.xml.ConfigurationChannel.refreshConfiguration(ConfigurationChannel.java:555) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.agent.appagent.kernel.config.xml.XMLConfigManager$AgentConfigurationRefreshTask.run(XMLConfigManager.java:653) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.util.javaspecific.scheduler.AgentScheduledExecutorServiceImpl$SafeRunnable.run(AgentScheduledExecutorServiceImpl.java:122) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_212]
at com.singularity.ee.util.javaspecific.scheduler.ADFutureTask$Sync.innerRunAndReset(ADFutureTask.java:335) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.util.javaspecific.scheduler.ADFutureTask.runAndReset(ADFutureTask.java:152) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.util.javaspecific.scheduler.ADScheduledThreadPoolExecutor$ADScheduledFutureTask.access$101(ADScheduledThreadPoolExecutor.java:119) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.util.javaspecific.scheduler.ADScheduledThreadPoolExecutor$ADScheduledFutureTask.runPeriodic(ADScheduledThreadPoolExecutor.java:206) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.util.javaspecific.scheduler.ADScheduledThreadPoolExecutor$ADScheduledFutureTask.run(ADScheduledThreadPoolExecutor.java:236) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.util.javaspecific.scheduler.ADThreadPoolExecutor$Worker.runTask(ADThreadPoolExecutor.java:694) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at com.singularity.ee.util.javaspecific.scheduler.ADThreadPoolExecutor$Worker.run(ADThreadPoolExecutor.java:726) ~[appagent.jar:Server Agent #23.10.0.35234 v23.10.0 GA compatible with 4.4.1.0 r67092cab6cbe60eed5a0453a32f699ca06e301e7 release/23.10.0]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]

[iamryan]

Hi @Naveen.Reddy,

Unfortunately, your post was flagged as spam and has just been released into the Community for visibility. Have you happened to find any new info or a solution since posting?