Server configurations

This topic describes server configurations of MOSN.

In the configuration structure of MOSN, servers indicates a server array, but only one server is supported currently.

server describes the following basic global parameters of MOSN.

{
  "default_log_path":"",
  "default_log_level":"",
  "global_log_roller":"",
  "graceful_timeout":"",
  "processor":"",
  "listeners":[]
}

default_log_path

The default error log path, which supports a complete log path, stdout, and stderr.

• If this field is left empty, logs are output to stderr by default.

default_log_level

The default error log level. Valid values: DEBUG, INFO, WARN, ERROR, and FATAL.

• Default value: INFO.

global_log_roller

• The log roller configuration, which is valid for all logs, for example, tracelog, accesslog, and defaultlog.
• The string type, which supports two modes: rolling by time and rolling by log size. Only one mode is valid at a time.
• Rolling by log size
  • size: The log size threshold (in MB) to start rolling.
  • age: The number of days during which the logs will be saved.
  • keep: The maximum number of logs to be saved.
  • compress: Specifies whether to compress logs. Valid values: on and off.

"global_log_roller": "size=100 age=10 keep=10 compress=off"

• Rolling by time
  • time: The time interval (hours) for rolling.

"global_log_roller":"time=1"

graceful_timeout

• The Duration String configuration. Indicates the maximum waiting time for disabling a connection in a hot upgrade of MOSN.
• Default value: 30s.

processor

The number of GOMAXPROCS used by MOSN.

• Default value: the number of CPUs.
• If it is not set or is set to 0, the default value is used.

Listeners

Settings for a group of Listeners.