# ClusterBlockException:blocked by: \[SERVICE\_UNAVAILABLE/1/state not recovered /initialized\]
**URL:** https://discuss.elastic.co/t/clusterblockexception-blocked-by-service-unavailable-1-state-not-recovered-initialized/169535
**Category:** Elasticsearch
**Created:** [February 22, 2019, 8:55am UTC](https://discuss.elastic.co/t/clusterblockexception-blocked-by-service-unavailable-1-state-not-recovered-initialized/169535 "2019-02-22T08:55:56Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@vincentduan](https://discuss.elastic.co/u/vincentduan)
#### Post date: [February 22, 2019, 8:55am UTC](https://discuss.elastic.co/t/clusterblockexception-blocked-by-service-unavailable-1-state-not-recovered-initialized/169535/1 "2019-02-22T08:55:56Z")
I have 12nodes (include 3 master nodes and 9 data nodes).
I use Elasticsearch 6.2.3 , ubuntu desktop 512G Memory, about 1000shards in cluster.
Yesterday, the cluster status got red , because one of my data nodes crashed .
While I restarted my crashed node , the cluster still red.
when I use elasticsearch-head check my cluster , the node log shows below:
```auto
Caused by : org.elasticsearch.discovery.MasterNotDiscoveredException: ClusterBlockException[blocked by:[SERVICE_UNAVAILABLE/1/state not recovered /initialized];]
at....
....
....
[WARN] [r.suppressed] path: /_aliases, params:{}
org.elasticsearch.transport.RemoteTransportException: [master1][192.168.1.103:9300][indices:admin/get]
Caused by: org.elasticsearch.discovery.MasterNotDiscoveredException:
ClusterBlockException[blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized]]
at ...
...
...
```
---
### Author:  [@vincentduan](https://discuss.elastic.co/u/vincentduan)
#### Post date: [February 22, 2019, 2:13pm UTC](https://discuss.elastic.co/t/clusterblockexception-blocked-by-service-unavailable-1-state-not-recovered-initialized/169535/2 "2019-02-22T14:13:06Z")
issued！
`gateway.recover_after_nodes` is the key to problem. I set 10 while only 9 data nodes available.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 22, 2019, 2:19pm UTC](https://discuss.elastic.co/t/clusterblockexception-blocked-by-service-unavailable-1-state-not-recovered-initialized/169535/3 "2019-03-22T14:19:55Z")
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