Scyld ClusterWare HPC: Reference Guide
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beostat_get_last_multicast

Name

beostat_get_last_multicast -- get file system statistics for the root file system on a node

Synopsis

#include <sys/beostat.h>

time_t beostat_get_last_multicast (void);

Description

beostat_get_last_multicast will get time of the last multicast request sent to the nodes. It is usually reserved for internal use.

Return Value

Returns the time in seconds since Epoch (00:00:00 UTC, January 1, 1970) of the last multicast request. If an error occurs, it will return -1.

Errors

This function relies on the Beostat subsystem, which consists of the proc filesystem on the remote node, the sendstats daemon on the remote node, the recvstats daemon on the master node, and two shared memory files in the directory /var/shm. If any part of the system breaks down, this function could fail.

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