dq-indexd --port port
dq-indexd is a single-process event-driven daemon, used by
IPC::DirQueue to track queue activity at a centralised point.
IPC::DirQueue uses a filesystem directory to hold its queue files, and normally uses the normal UNIX filesystem
readdir APIs to list the queue.
However, in certain situations when NFS is in use, these APIs may scale poorly, and a TCP/IP-based central server may be more appropriate (although adding a new single point of failure).
dq-indexd makes this possible.
IPC::DirQueue(3) dq-deque(1) dq-list(1) dq-server(1) dq-submit(1)