When i read the official documents,I found that mon would ping osds. The following is a description of the official documentation: --------------------------------------------------------------------------------------------------------------------- OSD Membership and Status: Ceph OSD Daemons join a cluster and report on their status. At the lowest level, the Ceph OSD Daemon status is up or down reflecting whether or not it is running and able to service Ceph Client requests. If a Ceph OSD Daemon is down and inthe Ceph Storage Cluster, this status may indicate the failure of the Ceph OSD Daemon. If a Ceph OSD Daemon is not running (e.g., it crashes), the Ceph OSD Daemon cannot notify the Ceph Monitor that it is down. The Ceph Monitor can ping a Ceph OSD Daemon periodically to ensure that it is running. However, Ceph also empowers Ceph OSD Daemons to determine if a neighboring OSD is down, to update the cluster map and to report it to the Ceph monitor(s). This means that Ceph monitors can remain light weight processes. SeeMonitoring OSDs and Heartbeats for additional details. ----------------------------------------------------------------------------------------------------------------------- Who can tell me which file in the source code, and which function, which function to do mon ping osd? -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
