# \[ES6 upgrade ES7\] The two-node cluster works normally, but the master node fails, the slave node tries to reconnect, and does not recommend itself as the new master node **URL:** https://discuss.elastic.co/t/es6-upgrade-es7-the-two-node-cluster-works-normally-but-the-master-node-fails-the-slave-node-tries-to-reconnect-and-does-not-recommend-itself-as-the-new-master-node/205777 **Category:** Elasticsearch **Created:** [October 30, 2019, 2:39am UTC](https://discuss.elastic.co/t/es6-upgrade-es7-the-two-node-cluster-works-normally-but-the-master-node-fails-the-slave-node-tries-to-reconnect-and-does-not-recommend-itself-as-the-new-master-node/205777 "2019-10-30T02:39:24Z") **Posts on this page:** 1 **Showing post:** 10
### Author: ![LiZhe1258](https://avatars.discourse-cdn.com/v4/letter/l/eada6e/32.png) [@LiZhe1258](https://discuss.elastic.co/u/LiZhe1258) #### Post date: [October 30, 2019, 3:06am UTC](https://discuss.elastic.co/t/es6-upgrade-es7-the-two-node-cluster-works-normally-but-the-master-node-fails-the-slave-node-tries-to-reconnect-and-does-not-recommend-itself-as-the-new-master-node/205777/10 "2019-10-30T03:06:47Z")
续上 [2019-10-30T10:36:08,674][WARN][o.e.c.c.ClusterFormationFailureHelper] [node\_20.23.72.15] master not discovered or elected yet, an election requires a node with id [pyKYCHjPQLGcM3EwI\_Dc8A], have discovered [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] which is not a quorum; discovery will continue using from hosts providers and [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] from last-known cluster state; node term 10, last-accepted version 528 in term 10 [2019-10-30T10:36:10,781][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:10,789][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:11,005][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:11,006][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:11,006][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:11,007][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:18,676][WARN][o.e.c.c.ClusterFormationFailureHelper] [node\_20.23.72.15] master not discovered or elected yet, an election requires a node with id [pyKYCHjPQLGcM3EwI\_Dc8A], have discovered [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] which is not a quorum; discovery will continue using from hosts providers and [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] from last-known cluster state; node term 10, last-accepted version 528 in term 10 [2019-10-30T10:36:28,678][WARN][o.e.c.c.ClusterFormationFailureHelper] [node\_20.23.72.15] master not discovered or elected yet, an election requires a node with id [pyKYCHjPQLGcM3EwI\_Dc8A], have discovered [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] which is not a quorum; discovery will continue using from hosts providers and [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] from last-known cluster state; node term 10, last-accepted version 528 in term 10 [2019-10-30T10:36:28,688][WARN][o.e.n.Node] [node\_20.23.72.15] timed out while waiting for initial discovery state - timeout: 30s [2019-10-30T10:36:28,702][INFO][o.e.h.AbstractHttpServerTransport] [node\_20.23.72.15] publish\_address {20.23.72.15:9200}, bound\_addresses {20.23.72.15:9200} [2019-10-30T10:36:28,702][INFO][o.e.n.Node] [node\_20.23.72.15] started [2019-10-30T10:36:31,776][DEBUG][o.e.a.a.c.s.TransportClusterStateAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:38,680][WARN][o.e.c.c.ClusterFormationFailureHelper] [node\_20.23.72.15] master not discovered or elected yet, an election requires a node with id [pyKYCHjPQLGcM3EwI\_Dc8A], have discovered [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] which is not a quorum; discovery will continue using from hosts providers and [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] from last-known cluster state; node term 10, last-accepted version 528 in term 10 [2019-10-30T10:36:38,889][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:38,890][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:38,891][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:38,891][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:36:48,682][WARN][o.e.c.c.ClusterFormationFailureHelper] [node\_20.23.72.15] master not discovered or elected yet, an election requires a node with id [pyKYCHjPQLGcM3EwI\_Dc8A], have discovered [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] which is not a quorum; discovery will continue using from hosts providers and [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] from last-known cluster state; node term 10, last-accepted version 528 in term 10 [2019-10-30T10:36:58,683][WARN][o.e.c.c.ClusterFormationFailureHelper] [node\_20.23.72.15] master not discovered or elected yet, an election requires a node with id [pyKYCHjPQLGcM3EwI\_Dc8A], have discovered [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] which is not a quorum; discovery will continue using from hosts providers and [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] from last-known cluster state; node term 10, last-accepted version 528 in term 10 [2019-10-30T10:37:01,780][DEBUG][o.e.a.a.c.s.TransportClusterStateAction] [node\_20.23.72.15] timed out while retrying [cluster:monitor/state] after failure (timeout [30s]) [2019-10-30T10:37:01,797][DEBUG][o.e.a.a.c.s.TransportClusterStateAction] [node\_20.23.72.15] no known master node, scheduling a retry [2019-10-30T10:37:08,685][WARN][o.e.c.c.ClusterFormationFailureHelper] [node\_20.23.72.15] master not discovered or elected yet, an election requires a node with id [pyKYCHjPQLGcM3EwI\_Dc8A], have discovered [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] which is not a quorum; discovery will continue using from hosts providers and [{node\_20.23.72.15}{JaQ87iQpS0qLomhZvl-tPQ}{V\_vcpdirTYeeRRz9xKmjlg}{20.23.72.15}{20.23.72.15:27336}{dim}] from last-known cluster state; node term 10, last-accepted version 528 in term 10 [2019-10-30T10:37:10,789][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] timed out while retrying [indices:admin/create] after failure (timeout [1m]) [2019-10-30T10:37:10,790][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] timed out while retrying [indices:admin/create] after failure (timeout [1m]) [2019-10-30T10:37:11,007][DEBUG][o.e.a.a.i.c.TransportCreateIndexAction] [node\_20.23.72.15] timed out while retrying [indices:admin/create] after failure (timeout [1m]) --- _[View the full topic](https://discuss.elastic.co/t/es6-upgrade-es7-the-two-node-cluster-works-normally-but-the-master-node-fails-the-slave-node-tries-to-reconnect-and-does-not-recommend-itself-as-the-new-master-node/205777)._