CNID_METAD(8)

Name
cnid_metad — daemon for starting cnid_dbd daemons on demand

Synopsis
cnid_metad [-d] [-F configuration file]

cnid_metad [-v | -V]

Description
cnid_metad waits for requests from afpd to start up instances of the cnid_dbd daemon. It keeps track of the status of a cnid_dbd instance once started and will restart it if necessary.

When built with support for the dbd (Database Daemon) CNID backend, netatalk(8) will start and stop cnid_metad as needed. The user will normally not interact with it directly.

Options
-d

    cnid_metad will remain in the foreground and will also leave the standard input, standard output and standard error file descriptors open. Useful for debugging.

-F configuration file

    Use configuration file as the configuration file.

-v, -V

    Show version and exit.

Caveats
cnid_metad does not block or catch any signals apart from SIGPIPE. It will therefore exit on most signals received. This will also cause all instances of cnid_dbd started by that cnid_metad to exit gracefully. Since state about and IPC access to the subprocesses is only maintained in memory by cnid_metad this is desired behaviour. As soon as cnid_metad is restarted afpd processes will transparently reconnect.

See Also
netatalk(8), cnid_dbd(8), afpd(8), dbd(1), afp.conf(5)

Operator Notes
After a netatalk upgrade, restart cnid_metad (typically systemctl restart netatalk) so its cnid_dbd children pick up the new binary.

Author
Contributors to the Netatalk Project (https://netatalk.io/contributors)