Network Deployment (Distributed operating systems), v8.0 > Set up the application serving environment > Administer nodes and resources > Configure administration services
Remote files services for file transfer and file synchronization
Overview
Configuration documents describe the available application servers, their configurations, and their contents. Two file services manage configuration documents:
- file transfer service
- file synchronization
Configuration documents
- File transfer service
- Enable the moving of files between...
- dmgr and nodes
- wsadmin scripting process and either dmgr or appserver
It uses the HTTP protocol to transfer files. When you enable security in the WAS product, the file transfer service uses certificate-based mutual authentication. We can use the default key files in a test environment. Ensure that you change the default key file to secure the system.
The ports used for file transfer are...
- HTTP transport port
- HTTPS transport port
- admin console port
- administrative console secure port
- File synchronization service
- Ensures that a file set on each node matches that on the dmgr node. Promotes consistent configuration data across a cell. We can adjust several configuration settings to control file synchronization on individual nodes and throughout a system.
The service runs in the dmgr and node agents, and ensures that configuration changes made to the cell repository are propagated to the appropriate node repositories.
The cell repository is the master repository, and configuration changes made to node repositories are not propagated up to the cell. During a synchronization operation a node agent checks with the dmgr to see if any configuration documents that apply to the node have been updated. New or updated documents are copied to the node repository, and deleted documents are removed from the node repository.
The default behavior, which is enabled, is for each node agent to periodically run a synchronization operation. We can configure the interval between operations or disable the periodic behavior. We can also configure the synchronization service to synchronize a node repository before starting a server on the node.
- We must use either the admin console or wsadmin scripting to synchronization a node. Of these two options, is the best way to perform this operation. The Nodes panel in the administrative console includes the Synchronize operation.
If you need to use wsadmin scripting to synchronize a node, use the NodeSync mbean's sync() command.
- Do not restart the node agent as part of the synchronize node process. Administration operations, such as node synchronization for application deployment, or updates that take place while the node agent is starting, that are initiated through the node agent, and affect the application servers, fail until the node agent has a chance to discover the application servers.
Configure remote file services
Manage node agents