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08-25-2021 09:12 PM
Machine agent is not starting and crashes with an error:
[Agent-Monitor-Scheduler-2] 26 Aug 2021 00:02:14,981 INFO MonitorExecutorServiceModule - Initializing the ThreadPool with size 2
[Agent-Monitor-Scheduler-2] 26 Aug 2021 00:02:14,982 ERROR PeriodicTaskRunner - Error creating environment task
java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to java.util.List
at com.appdynamics.extensions.conf.modules.HttpClientModule.initHttpClient(HttpClientModule.java:29)
at com.appdynamics.extensions.conf.MonitorConfiguration.loadConfigYml(MonitorConfiguration.java:181)
at com.appdynamics.extensions.conf.MonitorConfiguration$1.onFileChange(MonitorConfiguration.java:106)
at com.appdynamics.extensions.conf.modules.FileWatchListenerModule.createListener(FileWatchListenerModule.java:37)
at com.appdynamics.extensions.conf.MonitorConfiguration.setConfigYml(MonitorConfiguration.java:112)
at com.appdynamics.extensions.conf.MonitorConfiguration.setConfigYml(MonitorConfiguration.java:116)
at com.appdynamics.extensions.ABaseMonitor.initialize(ABaseMonitor.java:94)
at com.appdynamics.extensions.ABaseMonitor.execute(ABaseMonitor.java:127)
at com.singularity.ee.agent.systemagent.components.monitormanager.managed.MonitorTaskRunner.runTask(MonitorTaskRunner.java:148)
at com.singularity.ee.agent.systemagent.components.monitormanager.managed.PeriodicTaskRunner.runTask(PeriodicTaskRunner.java:86)
at com.singularity.ee.agent.systemagent.components.monitormanager.managed.PeriodicTaskRunner.run(PeriodicTaskRunner.java:47)
at com.singularity.ee.util.javaspecific.scheduler.AgentScheduledExecutorServiceImpl$SafeRunnable.run(AgentScheduledExecutorServiceImpl.java:122)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at com.singularity.ee.util.javaspecific.scheduler.ADFutureTask$Sync.innerRunAndReset(ADFutureTask.java:335)
at com.singularity.ee.util.javaspecific.scheduler.ADFutureTask.runAndReset(ADFutureTask.java:152)
at com.singularity.ee.util.javaspecific.scheduler.ADScheduledThreadPoolExecutor$ADScheduledFutureTask.access$101(ADScheduledThreadPoolExecutor.java:119)
at com.singularity.ee.util.javaspecific.scheduler.ADScheduledThreadPoolExecutor$ADScheduledFutureTask.runPeriodic(ADScheduledThreadPoolExecutor.java:206)
at com.singularity.ee.util.javaspecific.scheduler.ADScheduledThreadPoolExecutor$ADScheduledFutureTask.run(ADScheduledThreadPoolExecutor.java:236)
at com.singularity.ee.util.javaspecific.scheduler.ADThreadPoolExecutor$Worker.runTask(ADThreadPoolExecutor.java:694)
at com.singularity.ee.util.javaspecific.scheduler.ADThreadPoolExecutor$Worker.run(ADThreadPoolExecutor.java:726)
at java.lang.Thread.run(Thread.java:745)
Solved! Go to Solution.
08-26-2021 01:03 AM
08-27-2021 11:02 AM - edited 09-08-2021 12:00 PM
Thanks for your response.
We are trying to use a custom extension to monitor Solace broker. This extension is public on github.
This is the config.yml file:
### ANY CHANGES TO THIS FILE DOES NOT REQUIRE A RESTART ###
# This will create this metric in a specific component so that the same
# custom metric name will be distinct under different applications
# see: https://community.appdynamics.com/t5/Knowledge-Base/How-to-troubleshoot-missing-custom-metrics-or-ex...
metricPrefix: "Server|Component:<Component_id>|Custom Metrics|Solace|"
# List of Solace Servers
servers:
mgmtUrl: "https://mrzvka122dhaa.messaging.solace.cloud:943/SEMP"
# encryptedPassword: "gD1962YptbA8bsaHmYXlSw=="
# encryptionKey: "na1jFUKT8euDXp1p7bgwIxhI6ZESLylz"
#displayName is required. Displays your server name in metric path.
displayName: "SolaceLab"
# requestTimeout: 1000000 # one second timeout
vpnExclusionPolicy: "blacklist"
excludeMsgVpns: ["#config-sync", "default"]
queueExclusionPolicy: "blacklist"
excludeQueues: ["#P2P/.*"]
topicEndpointExclusionPolicy: "blacklist"
excludeTopicEndpoints: ["#P2P/.*"]
excludeTemporaries: true
# number of concurrent tasks
numberOfThreads: 2
# timeout for the thread
# threadTimeout: 30
08-30-2021 02:00 AM
servers:
- mgmtUrl: "http://localhost:8080/SEMP"
08-30-2021 08:55 AM
Thanks for your help,
Now is running!!
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