SlaveTemplate{ami='ami-06870ca4fe1151af2', labels='agent'}. Attempting to provision slave needed by excess workload of 1 units
Oct 26, 2018 8:58:29 AM INFO hudson.plugins.ec2.SlaveTemplate logProvisionInfoSlaveTemplate{ami='ami-06870ca4fe1151af2', labels='agent'}. Considering launching
Oct 26, 2018 8:58:29 AM INFO hudson.plugins.ec2.SlaveTemplate logProvisionInfoSlaveTemplate{ami='ami-06870ca4fe1151af2', labels='agent'}. Setting Instance Initiated Shutdown Behavior : ShutdownBehavior.Terminate
Oct 26, 2018 8:58:29 AM INFO hudson.plugins.ec2.SlaveTemplate logProvisionInfoSlaveTemplate{ami='ami-06870ca4fe1151af2', labels='agent'}. Looking for existing instances with describe-instance: {Filters: [{Name: image-id,Values: [ami-06870ca4fe1151af2]}, {Name: instance-type,Values: [t2.medium]}, {Name: key-name,Values: [YooJks]}, {Name: instance.group-name,Values: [yoo-test18493-YootureJksAgentSecurityGroup-VL4P3JGXGAG3]}, {Name: tag:jenkins_server_url,Values: [null]}, {Name: tag:jenkins_slave_type,Values: [demand_EC2 Agent]}],InstanceIds: [],}
Oct 26, 2018 8:58:29 AM WARNING hudson.plugins.ec2.EC2Cloud provisionSlaveTemplate{ami='ami-06870ca4fe1151af2', labels='agent'}. Exception during provisioning
com.amazonaws.services.ec2.model.AmazonEC2Exception: Tag value cannot be null. Use empty string instead. (Service: AmazonEC2; Status Code: 400; Error Code: InvalidParameterValue; Request ID: 72b4d323-8867-40c3-9c96-638297b6b3b0)
	at com.amazonaws.http.AmazonHttpClient$RequestExecutor.handleErrorResponse(AmazonHttpClient.java:1658)
	at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeOneRequest(AmazonHttpClient.java:1322)
	at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeHelper(AmazonHttpClient.java:1072)
	at com.amazonaws.http.AmazonHttpClient$RequestExecutor.doExecute(AmazonHttpClient.java:745)
	at com.amazonaws.http.AmazonHttpClient$RequestExecutor.executeWithTimer(AmazonHttpClient.java:719)
	at com.amazonaws.http.AmazonHttpClient$RequestExecutor.execute(AmazonHttpClient.java:701)
	at com.amazonaws.http.AmazonHttpClient$RequestExecutor.access$500(AmazonHttpClient.java:669)