Hi, If a client is up before a node leaves the cluster then it could listen to org.apache.ignite.events.EventType#EVT_NODE_LEFT and org.apache.ignite.events.EventType#EVT_NODE_FAILED events.
If a client may start after a possible server node failure, then there is no solution out of the box but you could track the above-mentioned events on the server nodes and store a flag somewhere that a server node has left the cluster. Probably, enabling backups will be a better choice though. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
