2 ms·

Nope, zookeeper nodes have ids that always increment and can be used for fencing, compare-and-set and more...

• takeda 11y ago
  I was talking about consul and etcd.
  • syscomet 11y ago
    In the linked consul documentation, we see a `LockIndex` field in the lock state; https://www.consul.io/docs/agent/http/kv.html https://www.consul.io/docs/agent/http/kv.html confirms that "LockIndex is the number of times this key has successfully been acquired in a lock. If the lock is held, the Session key provides the session that owns the lock." So you can do fencing with consul.
  • syscomet 11y ago
    For etcd: https://coreos.com/etcd/docs/0.4.7/etcd-api/ https://coreos.com/etcd/docs/0.4.7/etcd-api/ node.modifiedIndex appears sensible for fencing.