Document Center

All Products

Document Center

Enterprise Distributed Application Service:FAQ index

Last Updated:Jul 17, 2023

This topic provides links to topics that provide answers to some commonly asked questions about Enterprise Distributed Application Service (EDAS).

Billing

Type	FAQ
Billing rules	What are the billable items for EDAS? How am I charged for IaaS resources? Do I need to purchase ECS instances after I purchase EDAS?

Application management

Cluster type	Module	FAQ
Kubernetes	Cluster import precheck	Does the import of a cluster fail if the precheck of specific items fails? Do I need to resolve the issue if errors are reported for specific precheck items during a precheck? What do I do if the precheck of specific items is interrupted? What do I do if the cluster version fails to pass the check? What do I do if the check of the available resources of a cluster reports an exception? What do I do if the security group of a cluster fails the check? What do I do if the SLB instance that is created for the API server of a cluster fails the check? What do I do if the RAM role of a cluster fails the check? What do I do if a warning is reported during the check of the aliyun-acr-credential-helper component? What do I do if the network resources of a cluster fail the check? What do I do if a warning is reported during the check of CRD conflicts for a cluster?
	Application creation and deployment	How do I adjust resource limits for image building?
	Application scaling	Can elastic container instances be used for the scaling of Kubernetes applications in EDAS?
ECS	Application creation and deployment	FAQ about getting started What security group rules are enabled during application creation? What are the default parameters of the startup command when I deploy an application? Can I set the URL of an application deployment package to any address? What do I do if I fail to start, stop, or deploy an application? Which version of Java does EDAS use? Can I choose another version? What do I do when the Ali-Tomcat container suddenly exits? How do I release applications in batches or by group?
	Application management	What do I do if resources are not synchronized in a timely manner? Can I restore a deleted application? How do I upgrade or downgrade the application runtime environment? Why does the running process of an application suddenly disappear?
	Application scaling	Can I vertically scale up ECS instances for ECS applications in EDAS?
	EDAS Agent	What do I do if no prompt and no EDAS Agent version number appear after EDAS Agent is installed? Why is the agent in the Unknown or Exception state after I install an EDAS agent? How do I handle the agent exception thrown after the agent process stops running? Does EDAS Agent automatically restart after the ECS instance is restarted? What do I do when EDAS Agent fails to start? Why is the original Java environment uninstalled during the installation of EDAS Agent? Why is the EDAS console unable to respond to operations on an application?
	Log management	What is the log cleanup policy for applications deployed in an ECS cluster? FAQ about log collectors
	Others	How do I implement load balancing after deploying an application on multiple instances? How do I share a session in a cluster after deploying an application on multiple instances? What do I do if I am unable to access EDAS application pages and call RPC services? Why is the status of an instance Unknown in the EDAS console? Can I install multiple applications on one instance in EDAS?

Microservices governance

Cluster type	FAQ
Kubernetes	How do I implement graceful startups and shutdowns of microservices?
ECS	Why is a callable service not displayed in the service list? What do I do when a normal service in the service list fails to be called?
Kubernetes and ECS	What do I do if Nacos fails to query microservices configurations in EDAS?