sinfod8

Usage

Overview

sinfod distributes system information to other sinfods on your local network.

These Information include the system load, memory utilization and the `TOP-5' processes on every machine.

It's main advantage is, that these informations are broadcasted using the udp(7) protocol.

If each node broadcasts it's information in a cooperative manner, the network load is O(N), where N is the number of nodes in your network. Other systems to monitor your cluster load (e.g. rup(1) ) are using a polling scheme where every node has to ask every other node for the system information: In that case the network load is O(N**2).

The task of sinfod is to broadcast the relevant information for the local node and to collect broadcasts from other nodes. Other programs ( sinfo(1) ) can get access to this information via a simple tcp(7) connection that normally is routed through the local loopback interface.

Options

-F/--foreground

Unlike normal operation, sinfod will not detach from the terminal when given this option. Some debugging informations will be visible.

-q/--quiet

Start quietly - for init scripts.

-V/--version

Print the version number and exit.

-b #.#.#.#/--bcastaddress=#.#.#.#

Set the broadcast address of the sinfod. Default is 255.255.255.255. In you want to run sinfod without a network card "-b 127.0.0.1" may be necessary.

-c/--cmdline

Broadcast the full command line of a process instead of the command only.

-m marker/--marker=marker

Mark the machine with a name. e.g. laboratory, pool or cluster.

-i/--ignore <process>

Don't broadcast any information on <process> ; --ignore may be set multiple times.

-t/--top <count>

Broadcast information on the top <count> processes; default: 5

-n card/--networkcard=card

Set the name of the network card whose informations will be broadcasted. (e.g. eth0). Default is the network card that saw the most traffic at the start of sinfod.

-N nicevalue/--nice=nicevalue

Set the priority of this demon to nicevalue. Default is 15.

-s/--spymode

Deactivate the TCP interface and the collection of received packets. The demon starts in a broadcast-only mode.

-W/--watchdog

Start with simple watchdog.