sendstats – compute node daemon that sends node status to the master node
sendstats [-h] [nodenumber] [IPaddress[:port] …]
The sendstats daemon is part of the
beostat package. Typically,
the daemon executes on each node in the cluster and periodically
transmits status data to a recvstats daemon that executes on the
master node. In a cluster with multiple master nodes, sendstats
typically sends status data to every master node.
The optional nodenumber is unnecessary for normal uses of sendstats. The recvstats daemon is normally able to discern the sender’s node number from the sender’s IP address. If nodenumber is specified, then it must be seen by the receiving recvstats as being unique to one and only one sending node in the cluster.
The exact content and format of the sendstats messages is version
specific, though it typically includes a unique identifying nodenumber
plus the dynamic values of the following
proc file system files:
The port number is optional, defaulting to port 5545. In the event of a
collision with another preexisting service, which would typically be
/etc/services, you must override the default. Choose a
new value that is not currently employed on the system, then add a
server beostats `` directive to ``/etc/beowulf/config.
The recvstats daemon is started by the ClusterWare service,
and the sendstats daemon is started for BProc nodes by the node
The sendstats daemon may be used on machines outside of the
BProc cluster management domain. In any case, the port number must
match the port on which recvstats listens.
Start the daemon on ClusterWare node n0, sending stats to the master at 10.20.30.1 using the default port:
[root@cluster ~] # bpsh 0 /usr/sbin/sendstats 10.20.30.1
Start the daemon on ClusterWare node n0, sending stats to the master at 10.20.30.1 and a second master at 10.20.30.2, using a non-default port:
[root@c ~] # bpsh 0 /usr/sbin/sendstats 10.20.30.1:939 10.20.30.2:939
Start the daemon on a non-ClusterWare node n1, using the default port:
[root@c ~] # ssh n1 /usr/sbin/sendstats 10.20.30.1:5545