# Kibana server is not ready yet suddenly

**URL:** <https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-suddenly/235654>\
**Category:** Elasticsearch\
**Created:** [June 4, 2020, 12:47am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-suddenly/235654 "2020-06-04T00:47:33Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Charles\_Yuliansen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/charles_yuliansen/32/45664_2.png) [@Charles\_Yuliansen](https://discuss.elastic.co/u/Charles_Yuliansen)\
**Post date:** [June 4, 2020, 12:47am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-suddenly/235654/1 "2020-06-04T00:47:33Z")

</div>

everything was fine until suddenly it appears "Kibana server is not ready yet".  
i have 1 master node (master), and 1 data node(node-1). It was working fine days until i realize.

## master:9200

```auto
[root@localhost kibana]# curl localhost:9200
{
  "name" : "master",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "P4QlwvuRRGSmlT77RroSjA",
  "version" : {
    "number" : "7.6.1",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "aa751e09be0a5072e8570670309b1f12348f023b",
    "build_date" : "2020-02-29T00:15:25.529771Z",
    "build_snapshot" : false,
    "lucene_version" : "8.4.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

```

## node-1:9200

```auto
[root@dev ~]# curl localhost:9200
{
  "name" : "node-1",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "P4QlwvuRRGSmlT77RroSjA",
  "version" : {
    "number" : "7.6.1",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "aa751e09be0a5072e8570670309b1f12348f023b",
    "build_date" : "2020-02-29T00:15:25.529771Z",
    "build_snapshot" : false,
    "lucene_version" : "8.4.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

```

## both node can see each other

```auto
[root@localhost kibana]# curl master:9200/_cluster/health?pretty
{
  "cluster_name" : "elasticsearch",
  "status" : "yellow",
  "timed_out" : false,
  "number_of_nodes" : 2,
  "number_of_data_nodes" : 2,
  "active_primary_shards" : 27,
  "active_shards" : 27,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 27,
  "delayed_unassigned_shards" : 0,
  "number_of_pending_tasks" : 0,
  "number_of_in_flight_fetch" : 0,
  "task_max_waiting_in_queue_millis" : 0,
  "active_shards_percent_as_number" : 50.0
}

```

kibana installed on master node.  
systemctl status kibana

```auto
[root@localhost kibana]# systemctl status kibana -l
● kibana.service - Kibana
   Loaded: loaded (/etc/systemd/system/kibana.service; enabled; vendor preset: disabled)
   Active: active (running) since Thu 2020-06-04 09:49:15 WIB; 28min ago
 Main PID: 61223 (node)
   CGroup: /system.slice/kibana.service
           └─61223 /usr/share/kibana/bin/../node/bin/node /usr/share/kibana/bin/../src/cli -c /etc/kibana/kibana.yml

Jun 04 09:49:44 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:44Z","tags":["warning","plugins","security","config"],"pid":61223,"message":"Generating a random key for xpack.security.encryptionKey. To prevent sessions from being invalidated on restart, please set xpack.security.encryptionKey in kibana.yml"}
Jun 04 09:49:44 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:44Z","tags":["warning","plugins","security","config"],"pid":61223,"message":"Session cookies will be transmitted over insecure connections. This is not recommended."}
Jun 04 09:49:44 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:44Z","tags":["warning","plugins","actions","actions"],"pid":61223,"message":"APIs are disabled due to the Encrypted Saved Objects plugin using an ephemeral encryption key. Please set xpack.encryptedSavedObjects.encryptionKey in kibana.yml."}
Jun 04 09:49:44 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:44Z","tags":["warning","plugins","alerting","plugins","alerting"],"pid":61223,"message":"APIs are disabled due to the Encrypted Saved Objects plugin using an ephemeral encryption key. Please set xpack.encryptedSavedObjects.encryptionKey in kibana.yml."}
Jun 04 09:49:44 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:44Z","tags":["info","plugins","monitoring","monitoring"],"pid":61223,"message":"config sourced from: production cluster"}
Jun 04 09:49:44 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:44Z","tags":["warning","plugins","monitoring","monitoring"],"pid":61223,"message":"X-Pack Monitoring Cluster Alerts will not be available: undefined"}
Jun 04 09:49:45 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:45Z","tags":["info","savedobjects-service"],"pid":61223,"message":"Waiting until all Elasticsearch nodes are compatible with Kibana before starting saved objects migrations..."}
Jun 04 09:49:45 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:45Z","tags":["info","plugins","watcher"],"pid":61223,"message":"Your basic license does not support watcher. Please upgrade your license."}
Jun 04 09:49:45 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:45Z","tags":["info","plugins","monitoring","monitoring","kibana-monitoring"],"pid":61223,"message":"Starting monitoring stats collection"}
Jun 04 09:49:46 localhost.localdomain kibana[61223]: {"type":"log","@timestamp":"2020-06-04T02:49:46Z","tags":["error","savedobjects-service"],"pid":61223,"message":"This version of Kibana (v7.7.0) is incompatible with the following Elasticsearch nodes in your cluster: v7.6.1 @ masterip:9200 (masterip), v7.6.1 @ node-1:9200 (node-1)"}

```

Any kind of respond will be appreciated so much. thank you in advance

---

<div class="post-metadata">

**Author:** ![Bernt\_Rostad](https://avatars.discourse-cdn.com/v4/letter/b/3ab097/32.png) [@Bernt\_Rostad](https://discuss.elastic.co/u/Bernt_Rostad)\
**Post date:** [June 4, 2020, 6:05am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-suddenly/235654/2 "2020-06-04T06:05:36Z")

</div>

The error in your Kibana log tells you what's wrong:

> [@Charles\_Yuliansen](#):
>
> `This version of Kibana (v7.7.0) is incompatible with the following Elasticsearch nodes in your cluster: v7.6.1 `

You're using an incompatible version of Kibana, it needs to be the **same** version as the version of your Elasticsearch installation.

The solution is either to **upgrade** Elasticsearch to version **7.7.0** or **downgrade** Kibana to **7.6.1**. Good luck!

---

<div class="post-metadata">

**Author:** ![Charles\_Yuliansen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/charles_yuliansen/32/45664_2.png) [@Charles\_Yuliansen](https://discuss.elastic.co/u/Charles_Yuliansen)\
**Post date:** [June 4, 2020, 9:15am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-suddenly/235654/3 "2020-06-04T09:15:06Z")

</div>

amazingly done thank you so much

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 2, 2020, 9:15am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-suddenly/235654/4 "2020-07-02T09:15:08Z")

</div>

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