View Source Singleton (singleton v1.4.0)
Singleton.
The top supervisor of singleton is a DynamicSupervisor, started in
your application's own OTP tree. Singleton can manage many singleton
processes at the same time. Each singleton is identified by its
unique name
term.
Summary
Functions
Start a new singleton process. Optionally provide the on_conflict
parameter which will be called whenever a singleton process shuts
down due to another instance being present in the cluster.
Functions
start_child(supervisor_name, module, args, name, on_conflict \\ fn -> nil end)
View SourceStart a new singleton process. Optionally provide the on_conflict
parameter which will be called whenever a singleton process shuts
down due to another instance being present in the cluster.
This function needs to be executed on all nodes where the singleton process is allowed to live. The actual process will be started only once; a manager process is started on each node for each singleton to ensure that the process continues on (possibly) another node in case of node disconnects or crashes.