Stats

ringpop emits stats using the statsd client provided to its constructor. All stats listed below are relative to a ringpop.<hostPort> prefix.

Counts

• filtered-change - a change that was recorded for dissemination was filtered at the time it was to be issued
• full-sync - the full membership state is disseminated during gossip
• join.complete - a join is completed
• join.recv - a join request is received
• membership.checksum-computed - membership checksum was recomputed upon receiving and applying a membership update
• membership-set.(alive|suspect|faulty) - a membership update with the specified status is applied after bootstrap
• membership-update.(alive|suspect|faulty) - a membership update with the specified status is applied
• ping.recv - a ping is received
• ping.send - a ping is sent
• ping-req.recv - a ping-req is received
• ping-req.send - a ping is sent
• requestProxy.retry.aborted - a proxied request retry is aborted
• requestProxy.retry.attempted - a proxied request retry is attempted
• requestProxy.retry.failed - a proxied request is retried up to the maximum number of retries and fails
• requestProxy.retry.reroute.local - a proxied request is rerouted to a local handler
• requestProxy.retry.reroute.remote - a proxied request is rerouted to a remote node
• requestProxy.retry.succeeded - a proxied request is retried and succeeds
• requestProxy.send.error - a proxied request fails to be sent
• requestProxy.send.success - a proxied request is sent
• ring.checksum-computed - the ring's checksum was recomputed after a server was added/removed

Gauges

• changes.apply - number of changes applied when disseminated during gossip
• changes.disseminate - number of changes to disseminate during gossip
• checksum - the membership checksum (recomputed after membership change)
• max-piggyback - max number of times a change is disseminated during gossip
• member-count-by-round - The number of members pinged per protocol period round
• num-members - number of members in membership (emitted when membership is updated)

Timers

• compute-checksum - time it takes to compute checksum
• join-time - the time it takes for a join process to complete
• ping - response times of a ping
• ping-req - response times of a ping-req
• ping-req.other-members - the number of random members select for a ping-req (NOTE: This will be changed to a gauge)
• ping-req-ping - response times of a ping sent in response to a ping-req received
• protocol.delay - the expected delay of the protocol period
• protocol.frequency - the actual delay of the protocol period taking into account gossip response times
• round-time - The time it takes to complete a protocol period round
• shuffle-time - The time it takes for membership to be shuffled after a protocol period round is completed
• updates - the number of updates processed during the last membership update (NOTE: This will be changed to a gauge)