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  1. /etc/sky/rialto-config.json – stores configuration set by the Middleware layer.
  2. /etc/rialto-soc.json – stores configuration set by the Vendor-specific layer.
  3. /opt/persistent/sky/rialto-config-overrides.json – allows overriding any previously defined configuration.


Current config parameters:

Config NameDescriptionDefault value
environmentVariablesA list of environment variables that are set in the session servers spawned by the session server manager
extraEnvVariablesA list of environment variables that are added to the existing environmentVariables. These are typically used in rialto-soc.json or rialto-config-overrides.json
sessionServerPathAn absolute path to the sessions server binary"/usr/bin/RialtoServer"
startupTimeoutMsThe amount of time the session server manager waits for a session server to start. If this time is exceeded, the session server manager stops the server and reports a failure. If the value is set to 0, there is no time limit, and the manager will wait indefinitely.
healthcheckIntervalInSeconds

Specifies how often health check messages are sent.


numOfPingsBeforeRecovery

Specifies how many consecutive failed pings are required before a recovery action is triggered.


socketPermissions

Specifies the permissions for the session management socket, expressed in octal permissions.


socketOwnerSpecifies the owner of the session management socket.""
socketGroupSpecifies the group ownership of the session management socket.""
numOfPreloadedServersThe amount of preloaded servers.1
logLevelLog level of all Rialto components.

1 - ERROR
2 - WARNING and above
3 - MILESTONE and above
4 - INFO and above

5 - DEBUG and above		3

...

To allow more flexible environment variable management, repeated environmentVariables will also overwrite extraEnvVariables from the previous configuration settings. Additionally, if there are environment variables with the same names in both environmentVariables and extraEnvVariables, the values from extraEnvVariables will take priority and be used.

Examples:

ExampleFinal environment variables set in the Session ServerNote

/etc/sky/rialto-config.json: environmentVariables = ["env1=1"], extraEnvVariables = ["env2=2"]
/etc/rialto-soc.json: environmentVariables = ["env3=3"]

["env3=3"]environmentVariables from /etc/rialto-soc.json overriden both environmentVariables and extraEnvVariables from /etc/sky/rialto-config.json
/etc/sky/rialto-config.json: environmentVariables = ["env1=1"], extraEnvVariables = ["env2=2"]
/etc/rialto-soc.json: extraEnvVariables = ["env3=3"]
/opt/persistent/sky/rialto-config-overrides.json: extraEnvVariables = ["env4=4"]
["env1=1", "env4=4"]extraEnvVariables from the /opt/persistent/sky/rialto-config-overrides.json and environmentVariables from /etc/sky/rialto-config.json are combined
/etc/sky/rialto-config.json: environmentVariables = ["env1=1", "env2=2"]
/etc/rialto-soc.json: extraEnvVariables = ["env1=3"]		["env1=3", "env2=2"]env1 is defined in both environmentVariables and extraEnvVariables, the value from extraEnvVariables will be used.