The setConsideredAliveFor() GraphQL mutation is used to set a duration from now until the host will be considered alive by LogScale. It may be used when it's offline.

The function of this mutation field is now an automated part of the graceful shutdown of a non-evicted node. There is no need to set this, manually. It will be removed at the earliest in version 1.195. Use instead GracefulShutdownConsideredAliveSeconds dynamic configuration.

For related information on this topic, you may find the Time Syntax reference page useful.

setConsideredAliveFor(
     nodeID: integer!, 
     aliveForMillis: long
   ): datetime