57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package consul
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import (
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"log"
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"github.com/hashicorp/serf/serf"
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)
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// lanMergeDelegate is used to handle a cluster merge on the LAN gossip
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// ring. We check that the peers are in the same datacenter and abort the
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// merge if there is a mis-match.
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type lanMergeDelegate struct {
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logger *log.Logger
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dc string
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}
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func (md *lanMergeDelegate) NotifyMerge(members []*serf.Member) (cancel bool) {
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for _, m := range members {
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ok, dc := isConsulNode(*m)
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if ok {
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if dc != md.dc {
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md.logger.Printf("[WARN] consul: Canceling cluster merge, member '%s' part of wrong datacenter '%s'",
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m.Name, dc)
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return true
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}
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continue
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}
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ok, parts := isConsulServer(*m)
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if ok && parts.Datacenter != md.dc {
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md.logger.Printf("[WARN] consul: Canceling cluster merge, member '%s' part of wrong datacenter '%s'",
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m.Name, parts.Datacenter)
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return true
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}
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}
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return false
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}
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// wanMergeDelegate is used to handle a cluster merge on the WAN gossip
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// ring. We check that the peers are server nodes and abort the merge
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// otherwise.
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type wanMergeDelegate struct {
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logger *log.Logger
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}
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func (md *wanMergeDelegate) NotifyMerge(members []*serf.Member) (cancel bool) {
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for _, m := range members {
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ok, _ := isConsulServer(*m)
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if !ok {
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md.logger.Printf("[WARN] consul: Canceling cluster merge, member '%s' is not a server",
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m.Name)
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return true
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}
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}
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return false
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}
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