Provided by: ion_3.2.1+dfsg-1.1_amd64
rfxclock - ION daemon task for managing scheduled events
rfxclock is a background "daemon" task that periodically applies scheduled changes in node connectivity and range to the ION node's database. It is spawned automatically by ionadmin in response to the 's' command that starts operation of the ION node infrastructure, and it is terminated by ionadmin in response to an 'x' (STOP) command. Once per second, rfxclock takes the following action: For each neighboring node that has been refusing custody of bundles sent to it to be forwarded to some destination node, to which no such bundle has been sent for at least N seconds (where N is twice the one-way light time from the local node to this neighbor), rfxclock turns on a probeIsDue flag authorizing transmission of the next such bundle in hopes of learning that this neighbor is now able to accept custody. Then rfxclock purges the database of all range and contact information that is no longer applicable, based on the stop times of the records. Finally, rfxclock applies to the database all range and contact information that is currently applicable, i.e., those records whose start times are before the current time and whose stop times are in the future.
"0" rfxclock terminated, for reasons noted in the ion.log file. If this termination was not commanded, investigate and solve the problem identified in the log file and use ionadmin to restart rfxclock. "1" rfxclock was unable to attach to the local ION node, probably because ionadmin has not yet been run.
No configuration files are needed.
No environment variables apply.
The following diagnostics may be issued to the ion.log log file: rfxclock can't attach to ION. ionadmin has not yet initialized the ION database. Can't apply ranges. An unrecoverable database error was encountered. rfxclock terminates. Can't apply contacts. An unrecoverable database error was encountered. rfxclock terminates. Can't purge ranges. An unrecoverable database error was encountered. rfxclock terminates. Can't purge contacts. An unrecoverable database error was encountered. rfxclock terminates.
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