check_afs_rpc

check_afs_rpc is a Nagios plugin for checking AFS file servers to see if there are client connections waiting for a free thread. If there are more than a few of these, AFS performance tends to be very slow; this is a fairly reliable way to catch overloaded file servers. By default, check_rxdebug returns a critical error if there are more than eight connections waiting for a free thread and a warning if there are more than two. These thresholds can be changed with the --critical and --warning options. check_afs_rpc will always print out a single line of output including the number of blocked connections, displaying whether this is critical, a warning, or okay.

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