Runs the program in debug mode: it will not detach, it will
print status updates very frequently, it will print extra diagnostic
messages to stderr.
The program will switch to a different uid/gid after
obtaining root-only resources. See also the UserID and GroupID
WorkerService(string, smtp) *
This is the service on which the worker nodes offer the
service that is being balanced. Typically this is the service of another
daemon, e.g. Postfix. The transponder daemon also uses this as the
datagram source service for its status updates.
BalancerService(string, smtp) *
The stream service on which the carrousel daemon listens
for incoming connections. These connections will be put through to one of
the worker nodes.
TransponderService(string, rlp) *
The carrousel daemon listens on this service for status
update datagrams from the transponders. See also the AllowUDP
PingInterval(time, 0.1 seconds)
How often the transponder sends an update to each
carrousel. So, if two carrousels are configured and the interval is 0.1
seconds, that transponder sends 20 packets every second.
PingTimeout(time, 0.5 seconds)
After this period has elapsed without receiving any status
update packets from the transponder, this host is considered dead.
IdleTimeout(time, 600.0 seconds)
The connection is terminated if neither party has sent
something for this many seconds. For SMTP connections this would have to
be at least 600.0 seconds, see RFC 2821 section 220.127.116.11.
ConnectTimeout(time, 1.0 seconds)
When connecting to a worker node, abort after this many
seconds have elapsed and no connection is established.
When putting through a connection fails, the carrousel will
attempt to contact other worker nodes. It will give up after this many
BenchPeriod(time, 5.0 seconds)
If a connection to a worker node fails it is excluded from
new connections for this many seconds.
TrailPeriod(time, 60.0 seconds)
When a connection is finished, pretend it lasted this many
seconds more for load calculation purposes.
Add an advantage to the last used worker node so that it
gets selected in preference of others.
When sending update packets, the capacity of the worker
node measured in terms of concurrent connections. This number is adjusted
for the current load average before sending it to the carrousel
Ringbuffer size for load balancer nodes.
If fewer than this many bytes are available in the ring
buffer, do not read anything but try to free up space first.
Only allow connections over the loopback interface. If this
option is set to "no", connections will be accepted on any
interface and on any address.
AllowUDP(extended regexp, ^)
Only datagram status packets that match this extended
regular expression are accepted. All other datagram packets are logged and
silently dropped. Once UDP packets are accepted from a certain source,
they are never matched against this regexp again.