// preferred nodes are nodes that are not on the same host as the local node
func (j *joinSender) CollectPreferredNodes() []string {
var preferredNodes []string
for host, hostports := range j.bootstrapHostsMap {
if host != util.CaptureHost(j.node.address) {
preferredNodes = append(preferredNodes, hostports...)
}
}
return preferredNodes
}
// non-preferred nodes are everyone else
func (j *joinSender) CollectNonPreferredNodes() []string {
if len(j.preferredNodes) == 0 {
return j.potentialNodes
}
var nonPreferredNodes []string
for _, host := range j.bootstrapHostsMap[util.CaptureHost(j.node.address)] {
if host != j.node.address {
nonPreferredNodes = append(nonPreferredNodes, host)
}
}
return nonPreferredNodes
}
// parseHosts populates the bootstrap hosts map from the provided slice of
// hostports.
func (j *joinSender) parseHosts(hostports []string) {
// Parse bootstrap hosts into a map
j.bootstrapHostsMap = util.HostPortsByHost(hostports)
// Perform some sanity checks on the bootstrap hosts
err := util.CheckLocalMissing(j.node.address, j.bootstrapHostsMap[util.CaptureHost(j.node.address)])
if err != nil {
j.logger.Warn(err.Error())
}
mismatched, err := util.CheckHostnameIPMismatch(j.node.address, j.bootstrapHostsMap)
if err != nil {
j.logger.WithField("mismatched", mismatched).Warn(err.Error())
}
}