After reading through these cases, I can not still figure out an effective way to resolve my issue. I repeated the installation process carefully, but the result was the same. The Events Service resides on the same machine as Enterprise Console and Controller. The machine host name is specified in /etc/hosts as "appd-ctl", the name shown in the error messages. I even shutdown the firewall when starting the Events Service, but there was no difference. -------------------- error message ------------ Task failed: Starting the Events Service api store node on host: appd-ctl as user: root with message: Connection to [<a href="<a href="http://appd-ctl:9080/_ping" target="_blank">http://appd-ctl:9080/_ping</a>" target="_blank"><a href="http://appd-ctl:9080/_ping" target="_blank">http://appd-ctl:9080/_ping</a></a>] failed due to [Failed to connect to appd-ctl/fe80:0:0:0:be24:11ff:fe59:c94a%2:9080]. --------------------------------------------------------------------- . . . . . . . INFO [2024-08-16 14:35:06.202] com.appdynamics.orcha.core.executor.DefaultPlaybookExecutor: Executing : Starting the Events Service api store node                  ERROR [2024-08-16 14:45:07.060] com.appdynamics.orcha.core.executor.DefaultPlaybookExecutor: Error executing task: TaskSpec[async=false,deleteDir=true,heartbeatInterval=60,ignoreErrors=false,localModule=false,longRunning=false,longRunningInitInterval=500,longRunningPollInterval=1000,longRunningWriteInterval=200,name=Starting the Events Service api store node,operationSpecList=[ShellSpec[chdir=/opt/appdynamics/platform/product/events-service/processor,command=[nohup, bin/events-service.sh, start, -p, conf/events-service-api-store.properties],commandForLogging=<null>,consoleInputFile=<null>,consoleOutputFile=<null>,environment={DONOTDAEMONIZE=true,JAVA_HOME=/opt/appdynamics/platform/product/jre/1.8.0_422},failOnError=true,hideContext=false,spawn=true,timeout=0,assertionSpecList=[],isLocalOperation=false,name=shell], UriSpec[body=<null>,failOnError=true,format=TEXT,fragment=<null>,headers=<null>,hiddenQueryStringVars=<null>,host=<null>,ignoreStatusCode=-1,method=get,path=<null>,port=<null>,query=<null>,scheme=<null>,timeout=60,uri=http://appd-ctl:9080/_ping,userName=<null>,retryInterval=5,retryTimeout=600,assertionSpecList=[],isLocalOperation=false,name=uri]],registerOutputAs=<null>,runLocal=false,separateProcess=false,taskSshTimeout=7200000,uid=<null>,updateThreshold=30] ERROR [2024-08-16 14:45:07.073] com.appdynamics.orcha.core.OrchaRunnerImpl: Error executing: ERROR [2024-08-16 14:45:07.085] com.appdynamics.platformadmin.core.job.JobProcessor: Platform/Job [1/818959e9-5f25-49af-9510-591ca406a7f0]: Stage [Start Events Service Cluster] failed due to [Task failed: Starting the Events Service api store node on host: appd-ctl as user: root with message: Connection to [http://appd-ctl:9080/_ping] failed due to [Failed to connect to appd-ctl/fe80:0:0:0:be24:11ff:fe59:c94a%2:9080].] ... View more

Hi Martina,     Thanks for response. It sounds no reason that my appd-server host does have sufficient disk storage (50GB) because I reserve 500GB disk for this server. To bypass this issue, I tried reducing the disk storage parameter value to "5 * 1024", and it succeeded. Now I can successfully run the AppDynamics Controller. controller_data_min_disk_space_in_mb = 5 * 1024 ... View more