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Hi,
You said that "when I run the command...", what is the command that you are running? Are you executing the Python component yourself? You cannot run Greengrass components yourself using the command line. Greengrass components can only be run by Greengrass itself, so this error is exactly what I'd expect when you run it yourself.
Please make sure that you are deploying the component to Greengrass using the Greengrass local CLI or cloud deployment.
Cheers,
Michael
Hello taka,
At this point can you make sure that Greengrass is properly running with no issues before submitting the deployment? Since you are using the guide from the workshop, you can check this via sudo systemctl status greengrass.service
Can you also check the greengrass.log
for any errors which may of occurred during startup which could interfere with setting these env vars.
Could you share any related changes specifically done to either the recipe / component from the workshop to specifically fit your use case?
Hello jrcarb,
Thank you for your answering.
# systemctl status greengrass.service
● greengrass.service - Greengrass Core
Loaded: loaded (/etc/systemd/system/greengrass.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2024-04-09 08:44:40 JST; 4min 12s ago
Main PID: 21106 (sh)
Tasks: 58 (limit: 4598)
Memory: 232.4M
CPU: 15.157s
CGroup: /system.slice/greengrass.service
├─21106 /bin/sh /greengrass/v2/alts/current/distro/bin/loader
└─21111 java -Dlog.store=FILE -Dlog.store=FILE -Droot=/greengrass/v2 -jar /greengrass/v2/alts/current/distro/lib/Gre>
Apr 09 08:44:40 ip-10-0-10-208 systemd[1]: Started Greengrass Core.
Apr 09 08:44:40 ip-10-0-10-208 sh[21106]: Greengrass root: /greengrass/v2
Apr 09 08:44:40 ip-10-0-10-208 sh[21106]: Java executable: java
Apr 09 08:44:40 ip-10-0-10-208 sh[21106]: JVM options: -Dlog.store=FILE -Droot=/greengrass/v2
Apr 09 08:44:40 ip-10-0-10-208 sh[21106]: Nucleus options: --setup-system-service false
Apr 09 08:44:42 ip-10-0-10-208 sh[21111]: Launching Nucleus...
Apr 09 08:44:43 ip-10-0-10-208 sh[21111]: Launched Nucleus successfully.
# cat greengrass.log
2024-04-08T23:44:43.019Z [INFO] (main) com.aws.greengrass.security.SecurityService: Register crypto key service provider. {keyType=file}
2024-04-08T23:44:43.020Z [INFO] (main) com.aws.greengrass.security.SecurityService: Register MQTT connection security provider. {keyType=file}
2024-04-08T23:44:43.026Z [INFO] (main) com.aws.greengrass.mqttclient.spool.Spool: Spooler has been configured. {maxSizeInBytes=2621440, storageType=Memory, keepQos0WhenOffline=false}
2024-04-08T23:44:43.027Z [INFO] (main) com.aws.greengrass.mqttclient.spool.Spool: Memory Spooler has been set up. {}
2024-04-08T23:44:43.044Z [INFO] (main) com.aws.greengrass.lifecyclemanager.Kernel: Attempt to load service from plugins. {serviceName=aws.greengrass.Nucleus}
2024-04-08T23:44:43.122Z [INFO] (pool-3-thread-3) com.aws.greengrass.cli.CLIService: Set up symlink to CLI binary. {binary=/greengrass/v2/packages/artifacts-unarchived/aws.greengrass.Cli/2.12.4/aws.greengrass.cli.client/cliclient/bin/greengrass-cli, link=/greengrass/v2/bin/greengrass-cli, serviceName=aws.greengrass.Cli, currentState=NEW}
2024-04-08T23:44:43.123Z [INFO] (pool-3-thread-3) com.aws.greengrass.cli.CLIService: Set up symlink to CLI binary. {binary=/greengrass/v2/packages/artifacts-unarchived/aws.greengrass.Cli/2.12.4/aws.greengrass.cli.client/cliclient/bin/greengrass-cli.cmd, link=/greengrass/v2/bin/greengrass-cli.cmd, serviceName=aws.greengrass.Cli, currentState=NEW}
2024-04-08T23:44:43.124Z [INFO] (aws.greengrass.Cli-lifecycle) com.aws.greengrass.cli.CLIService: service-set-state. {serviceName=aws.greengrass.Cli, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.127Z [INFO] (aws.greengrass.Cli-lifecycle) com.aws.greengrass.cli.CLIService: service-set-state. {serviceName=aws.greengrass.Cli, currentState=INSTALLED, newState=STARTING}
2024-04-08T23:44:43.127Z [INFO] (aws.greengrass.Cli-lifecycle) com.aws.greengrass.cli.CLIService: Stopping backingTask waiting for dependency ready. {serviceName=aws.greengrass.Cli, currentState=STARTING}
2024-04-08T23:44:43.142Z [INFO] (pool-3-thread-3) com.aws.greengrass.cli.CLIService: Auth tokens have been revoked. {serviceName=aws.greengrass.Cli, currentState=STARTING}
2024-04-08T23:44:43.145Z [INFO] (aws.greengrass.Cli-lifecycle) com.aws.greengrass.cli.CLIService: service-set-state. {serviceName=aws.greengrass.Cli, currentState=STARTING, newState=RUNNING}
2024-04-08T23:44:43.179Z [INFO] (main) com.aws.greengrass.lifecyclemanager.Kernel: Attempt to load service from plugins. {serviceName=aws.greengrass.LambdaLauncher}
2024-04-08T23:44:43.199Z [INFO] (main) com.aws.greengrass.lifecyclemanager.Kernel: Attempt to load service from plugins. {serviceName=FleetStatusService}
2024-04-08T23:44:43.213Z [INFO] (main) com.aws.greengrass.lifecyclemanager.Kernel: Attempt to load service from plugins. {serviceName=DeploymentService}
2024-04-08T23:44:43.485Z [INFO] (main) com.aws.greengrass.lifecyclemanager.Kernel: Attempt to load service from plugins. {serviceName=TelemetryAgent}
2024-04-08T23:44:43.506Z [INFO] (Thread-4) com.aws.greengrass.mqttclient.AwsIotMqtt5Client: Successfully connected to AWS IoT Core. {clientId=GreengrassQuickStartCore-18ebb1e2ff8, sessionPresent=false}
2024-04-08T23:44:43.581Z [INFO] (main) com.aws.greengrass.lifecyclemanager.Kernel: Attempt to load service from plugins. {serviceName=UpdateSystemPolicyService}
2024-04-08T23:44:43.583Z [INFO] (main) com.aws.greengrass.lifecyclemanager.Kernel: Attempt to load service from plugins. {serviceName=main}
2024-04-08T23:44:43.651Z [INFO] (main) com.aws.greengrass.lifecyclemanager.Kernel: effective-config-dump-complete. {file=/greengrass/v2/config/effectiveConfig.yaml}
2024-04-08T23:44:43.652Z [INFO] (main) com.aws.greengrass.lifecyclemanager.KernelLifecycle: system-start. {main=services.main:NEW}
2024-04-08T23:44:43.659Z [INFO] (aws.greengrass.Nucleus-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.Nucleus, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.660Z [INFO] (DeploymentService-lifecycle) com.aws.greengrass.deployment.DeploymentService: service-set-state. {serviceName=DeploymentService, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.661Z [INFO] (TelemetryAgent-lifecycle) com.aws.greengrass.telemetry.TelemetryAgent: service-set-state. {serviceName=TelemetryAgent, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.661Z [INFO] (aws.greengrass.Nucleus-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.Nucleus, currentState=INSTALLED, newState=STARTING}
2024-04-08T23:44:43.667Z [INFO] (FleetStatusService-lifecycle) com.aws.greengrass.status.FleetStatusService: service-set-state. {serviceName=FleetStatusService, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.667Z [INFO] (TelemetryAgent-lifecycle) com.aws.greengrass.telemetry.TelemetryAgent: service-set-state. {serviceName=TelemetryAgent, currentState=INSTALLED, newState=STARTING}
2024-04-08T23:44:43.669Z [INFO] (FleetStatusService-lifecycle) com.aws.greengrass.status.FleetStatusService: service-set-state. {serviceName=FleetStatusService, currentState=INSTALLED, newState=STARTING}
2024-04-08T23:44:43.682Z [INFO] (TelemetryAgent-lifecycle) com.aws.greengrass.telemetry.TelemetryAgent: service-set-state. {serviceName=TelemetryAgent, currentState=STARTING, newState=RUNNING}
2024-04-08T23:44:43.683Z [INFO] (pool-3-thread-26) com.aws.greengrass.lifecyclemanager.GenericExternalService: generic-service-finished. Nothing done. {serviceName=aws.greengrass.Nucleus, currentState=STARTING}
2024-04-08T23:44:43.684Z [INFO] (aws.greengrass.Nucleus-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.Nucleus, currentState=STARTING, newState=FINISHED}
2024-04-08T23:44:43.684Z [INFO] (aws.greengrass.Nucleus-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.Nucleus, currentState=FINISHED, newState=STOPPING}
2024-04-08T23:44:43.685Z [INFO] (pool-3-thread-26) com.aws.greengrass.lifecyclemanager.GenericExternalService: Shutdown initiated. {serviceName=aws.greengrass.Nucleus, currentState=STOPPING}
2024-04-08T23:44:43.686Z [INFO] (pool-3-thread-26) com.aws.greengrass.lifecyclemanager.GenericExternalService: generic-service-shutdown. {serviceName=aws.greengrass.Nucleus, currentState=STOPPING}
2024-04-08T23:44:43.686Z [INFO] (FleetStatusService-lifecycle) com.aws.greengrass.status.FleetStatusService: service-set-state. {serviceName=FleetStatusService, currentState=STARTING, newState=RUNNING}
2024-04-08T23:44:43.687Z [INFO] (aws.greengrass.Nucleus-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.Nucleus, currentState=STOPPING, newState=FINISHED}
2024-04-08T23:44:43.687Z [INFO] (aws.greengrass.LocalDebugConsole-lifecycle) com.aws.greengrass.localdebugconsole.SimpleHttpServer: service-set-state. {serviceName=aws.greengrass.LocalDebugConsole, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.689Z [INFO] (DeploymentService-lifecycle) com.aws.greengrass.deployment.DeploymentService: service-set-state. {serviceName=DeploymentService, currentState=INSTALLED, newState=STARTING}
2024-04-08T23:44:43.690Z [INFO] (DeploymentService-lifecycle) com.aws.greengrass.deployment.DeploymentService: service-set-state. {serviceName=DeploymentService, currentState=STARTING, newState=RUNNING}
2024-04-08T23:44:43.691Z [INFO] (aws.greengrass.LocalDebugConsole-lifecycle) com.aws.greengrass.localdebugconsole.SimpleHttpServer: service-set-state. {serviceName=aws.greengrass.LocalDebugConsole, currentState=INSTALLED, newState=STARTING}
2024-04-08T23:44:43.691Z [INFO] (aws.greengrass.LocalDebugConsole-lifecycle) com.aws.greengrass.localdebugconsole.SimpleHttpServer: Stopping backingTask waiting for dependency ready. {serviceName=aws.greengrass.LocalDebugConsole, currentState=STARTING}
2024-04-08T23:44:43.698Z [INFO] (main-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=main, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.698Z [INFO] (UpdateSystemPolicyService-lifecycle) com.aws.greengrass.lifecyclemanager.UpdateSystemPolicyService: service-set-state. {serviceName=UpdateSystemPolicyService, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.698Z [INFO] (aws.greengrass.LambdaLauncher-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.LambdaLauncher, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.710Z [INFO] (UpdateSystemPolicyService-lifecycle) com.aws.greengrass.lifecyclemanager.UpdateSystemPolicyService: service-set-state. {serviceName=UpdateSystemPolicyService, currentState=INSTALLED, newState=STARTING}
2024-04-08T23:44:43.722Z [INFO] (UpdateSystemPolicyService-lifecycle) com.aws.greengrass.lifecyclemanager.UpdateSystemPolicyService: service-set-state. {serviceName=UpdateSystemPolicyService, currentState=STARTING, newState=RUNNING}
2024-04-08T23:44:43.746Z [INFO] (aws.greengrass.LambdaManager-lifecycle) com.aws.greengrass.lambdamanager.LambdaManager: service-set-state. {serviceName=aws.greengrass.LambdaManager, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.752Z [INFO] (aws.greengrass.LambdaManager-lifecycle) com.aws.greengrass.lambdamanager.LambdaManager: service-set-state. {serviceName=aws.greengrass.LambdaManager, currentState=INSTALLED, newState=STARTING}
2024-04-08T23:44:43.753Z [INFO] (pool-3-thread-15) com.aws.greengrass.lambdamanager.LambdaManager: sync-dns-config. {source=/etc/resolv.conf, serviceName=aws.greengrass.LambdaManager, currentState=STARTING}
2024-04-08T23:44:43.750Z [INFO] (Thread-4) com.aws.greengrass.deployment.IotJobsHelper: No deployment job found. {ThingName=GreengrassQuickStartCore-18ebb1e2ff8}
2024-04-08T23:44:43.751Z [INFO] (main) com.aws.greengrass.status.FleetStatusService: fss-status-update-published. Status update published to FSS. {trigger=NUCLEUS_LAUNCH, serviceName=FleetStatusService, currentState=RUNNING}
2024-04-08T23:44:43.755Z [INFO] (pool-3-thread-7) com.aws.greengrass.lambdamanager.FileSync: file-sync. start sync. {file=resolv.conf, source=/etc}
2024-04-08T23:44:43.779Z [INFO] (pool-3-thread-17) com.aws.greengrass.clientdevices.auth.certificate.infra.BackgroundCertificateRefresh: Starting background refresh of client certificates every 86400 seconds. {}
2024-04-08T23:44:43.797Z [INFO] (pool-3-thread-18) com.aws.greengrass.mqtt.bridge.MQTTBridge: service-config-change. Updating mapping. {mapping={}, serviceName=aws.greengrass.clientdevices.mqtt.Bridge, currentState=NEW}
2024-04-08T23:44:43.848Z [INFO] (aws.greengrass.clientdevices.mqtt.Bridge-lifecycle) com.aws.greengrass.mqtt.bridge.MQTTBridge: service-set-state. {serviceName=aws.greengrass.clientdevices.mqtt.Bridge, currentState=NEW, newState=INSTALLED}
2024-04-08T23:44:43.899Z [INFO] (pool-3-thread-17) com.aws.greengrass.clientdevices.auth.certificate.usecases.ConfigureManagedCertificateAuthority: Configuring Greengrass managed certificate authority.. {}
2024-04-08T23:44:43.899Z [INFO] (pool-3-thread-17) com.aws.greengrass.clientdevices.auth.certificate.CertificateStore: Loading Greengrass managed certificate authority. {}
2024-04-08T23:44:44.345Z [INFO] (pool-3-thread-15) com.aws.greengrass.lambdamanager.LambdaServer: Lambda server ready to accept connections on port 34469. {}
2024-04-08T23:44:44.346Z [INFO] (aws.greengrass.LambdaManager-lifecycle) com.aws.greengrass.lambdamanager.LambdaManager: service-set-state. {serviceName=aws.greengrass.LambdaManager, currentState=STARTING, newState=RUNNING}
2024-04-08T23:44:44.347Z [INFO] (aws.greengrass.LambdaLauncher-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.LambdaLauncher, currentState=INSTALLED, newState=STARTING}
2024-04-08T23:44:44.348Z [INFO] (pool-3-thread-20) com.aws.greengrass.lifecyclemanager.GenericExternalService: generic-service-finished. Nothing done. {serviceName=aws.greengrass.LambdaLauncher, currentState=STARTING}
2024-04-08T23:44:44.348Z [INFO] (aws.greengrass.LambdaLauncher-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.LambdaLauncher, currentState=STARTING, newState=FINISHED}
2024-04-08T23:44:44.354Z [INFO] (aws.greengrass.LambdaLauncher-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.LambdaLauncher, currentState=FINISHED, newState=STOPPING}
2024-04-08T23:44:44.355Z [INFO] (pool-3-thread-20) com.aws.greengrass.lifecyclemanager.GenericExternalService: Shutdown initiated. {serviceName=aws.greengrass.LambdaLauncher, currentState=STOPPING}
2024-04-08T23:44:44.355Z [INFO] (pool-3-thread-20) com.aws.greengrass.lifecyclemanager.GenericExternalService: generic-service-shutdown. {serviceName=aws.greengrass.LambdaLauncher, currentState=STOPPING}
2024-04-08T23:44:44.356Z [INFO] (aws.greengrass.LambdaLauncher-lifecycle) com.aws.greengrass.lifecyclemanager.GenericExternalService: service-set-state. {serviceName=aws.greengrass.LambdaLauncher, currentState=STOPPING, newState=FINISHED}
2024-04-08T23:44:44.679Z [INFO] (pool-3-thread-17) com.aws.greengrass.clientdevices.auth.certificate.CertificateStore: Configured new certificate authority. {subject=CN=Greengrass Core CA, L=Seattle, ST=Washington, OU=Amazon Web Services, O=Amazon.com Inc., C=US}
2024-04-08T23:44:45.649Z [INFO] (pool-3-thread-25) com.aws.greengrass.localdebugconsole.SimpleHttpServer: Starting local dashboard server. {serviceName=aws.greengrass.LocalDebugC
I have not made any changes to the recipes or components of the workshop.
The log size of aws.greengrass.Nucleus.log is 0. Is this normal?
/greengrass/v2/logs# ll
total 276
drwx------ 2 root root 4096 Apr 9 08:24 ./
drwxr-xr-x 12 root root 4096 Apr 9 08:44 ../
-rw-r--r-- 1 root root 0 Apr 8 09:40 aws.greengrass.LambdaLauncher.log
-rw-r--r-- 1 root root 0 Apr 8 09:40 aws.greengrass.LambdaRuntimes.log
-rw-r--r-- 1 root root 0 Apr 8 09:40 aws.greengrass.Nucleus.log
-rw-r--r-- 1 root root 12885 Apr 8 10:16 com.example.HelloWorld.log
-rw-r--r-- 1 root root 15389 Apr 8 09:59 com.example.HelloWorld_2024_04_08_09_0.log
-rw-r--r-- 1 root root 5749 Apr 9 08:24 com.example.Publisher.log
-rw-r--r-- 1 root root 4939 Apr 9 08:44 com.example.Subscriber.log
-rw-r--r-- 1 root root 220908 Apr 9 08:44 greengrass.log
-rw-r--r-- 1 root root 229 Apr 9 02:20 greengrass_2024_04_09_02_0.log
-rw-r--r-- 1 root root 0 Apr 8 09:40 main.log
Hi MichaelDombrowski-AW That's right! I executed "python3 example_subscriber.py" I probably thought so too. All resolved! Thank you!
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