Message Compression
Information
- The XML protocol used for communication between client and server contains a lot of redundant information. Therefore, depending on customizing and data volume, messages can be of a size that may lead to performance losses, especially if the network bandwidth is low.
- In order to counteract this, compression may be used.
- In order for this to work, both client and server have to be configured accordingly.
Configuration
- The server is configured via the
ENABLE_COMPRESSIONandCOMPRESSION_LEVELparameters in theplanta_server.conffile. - The client is configured via the
compressedandcompress_levelclient parameters. - The compression can be configured individually for client and server. Data compression is only activated if message compression is set for both server and client.
- If compression is activated for the server, the server can be used with different clients (i.e. activated as well as deactivated compression).
- In standard, compression is activated for both components, using the default compression ratio (6).
Notes
- In order to be able to use message compression, a server version ≥ S 39.5.2 as well as a client version ≥ C 39.5.5 must be used.
- For a compressing VPN tunnel, no advantage is to be expected from message compression.
- If, contrary to expectations, performance losses do occur due to the use of compression, it can be turned off for single clients.
| See also : Message Compression: Technical background |