图中为_cluster/health 和_cat/pending_tasks的执行结果，现在ES节点全部故障了，请教下如何恢复？
 
gateway.expected_nodes配置的为节点个数的80% 
```
Caused by: org.elasticsearch.discovery.MasterNotDiscoveredException: ClusterBlockException[blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized];]
at org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction$4.onTimeout(TransportMasterNodeAction.java:213) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.cluster.ClusterStateObserver$ContextPreservingListener.onTimeout(ClusterStateObserver.java:317) [elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.cluster.ClusterStateObserver$ObserverClusterStateListener.onTimeout(ClusterStateObserver.java:244) [elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.cluster.service.ClusterApplierService$NotifyTimeout.run(ClusterApplierService.java:578) [elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:568) [elasticsearch-6.1.3.jar:6.1.3]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_181]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_181]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181]
Caused by: org.elasticsearch.cluster.block.ClusterBlockException: blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized];
at org.elasticsearch.cluster.block.ClusterBlocks.indexBlockedException(ClusterBlocks.java:182) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.action.admin.indices.create.TransportCreateIndexAction.checkBlock(TransportCreateIndexAction.java:64) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.action.admin.indices.create.TransportCreateIndexAction.checkBlock(TransportCreateIndexAction.java:39) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction.doStart(TransportMasterNodeAction.java:135) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction.start(TransportMasterNodeAction.java:127) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.action.support.master.TransportMasterNodeAction.doExecute(TransportMasterNodeAction.java:105) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.action.support.master.TransportMasterNodeAction.doExecute(TransportMasterNodeAction.java:55) ~[elasticsearch-6.1.3.jar:6.1.3]

1.在Elasticsearch数据库上公开2400万个信用和抵押记录。
http://t.cn/EtdTYAs
2.使用Elasticsearch构建长期安全运营平台。
http://t.cn/EtdHXAV
3.(自备梯子)飞行汽车比您想象的更接近现实。
http://t.cn/EtdQtfV

编辑：至尊宝
归档：https://elasticsearch.cn/article/6356
订阅：https://tinyletter.com/elastic-daily

1. 使用ELK实时展示python日志(自备梯子）
   [http://t.cn/EtnXpxL](http://t.cn/EtnXpxL)
   
   2.使用logstash的grok自定义数据格式(自备梯子）
   [http://t.cn/Etna8mi](http://t.cn/Etna8mi)
   
   
2. docker部署ELK监控日志
   [http://t.cn/EtnTn3O](http://t.cn/EtnTn3O)
   
   
   
   • 编辑：bsll
     
     
   • 归档：https://elasticsearch.cn/article/6355
     
     
   • 订阅：https://tinyletter.com/elastic-daily
     

1、Spring Boot  + Elasticsearch开源实现
http://t.cn/EtRjzdC
2、docker一键搭建elasticsearch6.5.0集群
http://t.cn/EtRjy4M
3、深入研究Elasticsearch聚合的性能
http://t.cn/EtRjtEe

编辑：铭毅天下
归档：https://elasticsearch.cn/article/6354
订阅：https://tinyletter.com/elastic-daily

1.Elastic Stack 6.6.0发布
https://www.elastic.co/blog/el ... eased
2.基于Lucene查询原理分析Elasticsearch的性能
http://t.cn/EwZO5to
3.基于ELK的uber实时预测引擎
http://t.cn/Et0qg2x

编辑：金桥
归档：https://elasticsearch.cn/article/6353
订阅：https://tinyletter.com/elastic-daily

1.Elasticsearch DSL 的 Rust 封装
http://t.cn/EtpIMiG
2.Elasticsearch & Hadoop
http://t.cn/EtpImun
3.Lucene索引结构漫谈
http://t.cn/Re1Dp6g

编辑：江水
归档：https://elasticsearch.cn/article/6352
订阅：https://tinyletter.com/elastic-daily