ElasticSearch MasterNotDiscoveredException

Question

我已经在kuberentes中设置了一个elasticsearch集群，但是我得到了错误"MasterNotDiscoveredException“。我甚至不确定从哪里开始调试此错误，因为在任何节点的日志中似乎都没有任何有用的东西：

│ elasticsearch {"type": "server", "timestamp": "2022-06-15T00:44:17,226Z", "level": "WARN", "component": "r.suppressed", "cluster.name": "logging-ek", "node.name": "logging-ek-es-master-0", "message": "path: /_bulk, params: {}",                                                             │
│ elasticsearch "stacktrace": ["org.elasticsearch.cluster.block.ClusterBlockException: blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized, SERVICE_UNAVAILABLE/2/no master];",                                                                                                  │
│ elasticsearch "at org.elasticsearch.cluster.block.ClusterBlocks.globalBlockedException(ClusterBlocks.java:179) ~[elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                                             │
│ elasticsearch "at org.elasticsearch.action.bulk.TransportBulkAction$BulkOperation.handleBlockExceptions(TransportBulkAction.java:635) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                       │
│ elasticsearch "at org.elasticsearch.action.bulk.TransportBulkAction$BulkOperation.doRun(TransportBulkAction.java:481) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                                       │
│ elasticsearch "at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:26) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                                                   │
│ elasticsearch "at org.elasticsearch.action.bulk.TransportBulkAction$BulkOperation$2.onTimeout(TransportBulkAction.java:669) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                                 │
│ elasticsearch "at org.elasticsearch.cluster.ClusterStateObserver$ContextPreservingListener.onTimeout(ClusterStateObserver.java:345) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                         │
│ elasticsearch "at org.elasticsearch.cluster.ClusterStateObserver$ObserverClusterStateListener.onTimeout(ClusterStateObserver.java:263) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                      │
│ elasticsearch "at org.elasticsearch.cluster.service.ClusterApplierService$NotifyTimeout.run(ClusterApplierService.java:660) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                                 │
│ elasticsearch "at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:718) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                              │
│ elasticsearch "at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?]",                                                                                                                                                                                       │
│ elasticsearch "at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]",                                                                                                                                                                                       │
│ elasticsearch "at java.lang.Thread.run(Thread.java:833) [?:?]",                                                                                                                                                                                                                                 │
│ elasticsearch "Suppressed: org.elasticsearch.discovery.MasterNotDiscoveredException",                                                                                                                                                                                                           │
│ elasticsearch "\tat org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction$2.onTimeout(TransportMasterNodeAction.java:297) ~[elasticsearch-7.17.1.jar:7.17.1]",                                                                                                    │
│ elasticsearch "\tat org.elasticsearch.cluster.ClusterStateObserver$ContextPreservingListener.onTimeout(ClusterStateObserver.java:345) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                       │
│ elasticsearch "\tat org.elasticsearch.cluster.ClusterStateObserver$ObserverClusterStateListener.onTimeout(ClusterStateObserver.java:263) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                    │
│ elasticsearch "\tat org.elasticsearch.cluster.service.ClusterApplierService$NotifyTimeout.run(ClusterApplierService.java:660) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                               │
│ elasticsearch "\tat org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:718) [elasticsearch-7.17.1.jar:7.17.1]",                                                                                                                            │
│ elasticsearch "\tat java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?]",                                                                                                                                                                                     │
│ elasticsearch "\tat java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]",                                                                                                                                                                                     │
│ elasticsearch "\tat java.lang.Thread.run(Thread.java:833) [?:?]"] } 

几乎是我见过的唯一的日志。

看起来集群确实看到了我的所有主节点：

elasticsearch {"type": "server", "timestamp": "2022-06-15T00:45:41,915Z", "level": "WARN", "component": "o.e.c.c.ClusterFormationFailureHelper", "cluster.name": "logging-ek", "node.name": "logging-ek-es-master-0", "message": "master not discovered yet, this node has not previously joine │
│ d a bootstrapped (v7+) cluster, and [cluster.initial_master_nodes] is empty on this node: have discovered [{logging-ek-es-master-0}{fHLQrvLsTJ6UvR_clSaxfg}{iLoGrnWSTpiZxq59z7I5zA}{10.42.64.4}{10.42.64.4:9300}{mr}, {logging-ek-es-master-1}{EwF8WLIgSF6Q1Q46_51VlA}{wz5rg74iThicJdtzXZg29g}{ │
│ 10.42.240.8}{10.42.240.8:9300}{mr}, {logging-ek-es-master-2}{jtrThk_USA2jUcJYoIHQdg}{HMvZ_dUfTM-Ar4ROeIOJlw}{10.42.0.5}{10.42.0.5:9300}{mr}]; discovery will continue using [127.0.0.1:9300, 127.0.0.1:9301, 127.0.0.1:9302, 127.0.0.1:9303, 127.0.0.1:9304, 127.0.0.1:9305, [::1]:9300, [::1]: │
│ 9301, [::1]:9302, [::1]:9303, [::1]:9304, [::1]:9305, 10.42.0.5:9300, 10.42.240.8:9300] from hosts providers and [{logging-ek-es-master-0}{fHLQrvLsTJ6UvR_clSaxfg}{iLoGrnWSTpiZxq59z7I5zA}{10.42.64.4}{10.42.64.4:9300}{mr}] from last-known cluster state; node term 0, last-accepted version  │
│ 0 in term 0" } 

我已经证实他们实际上可以通过网络联系到对方。还有什么别的地方需要我去找错误吗？我通过弹性操作符安装了elasticsearch。

Answer 1

开始卷到9300端口。确保两种方式都能得到有效的响应。

此外，确保您的MTU是正确的，否则这也可能发生。大多数时候都是网络问题。