question: void updateAlives ( ClusterNode leftNode ) { if ( leftNode . order ( ) > maxOrder ) return ; filterNodeMap ( aliveCacheNodes , leftNode ) ; filterNodeMap ( aliveRmtCacheNodes , leftNode ) ; aliveNodesWithCaches . remove ( leftNode ) ; aliveSrvNodesWithCaches . remove ( leftNode ) ; aliveRmtSrvNodesWithCaches . remove ( leftNode ) ; }
target:  Removes left node from cached alives lists.