Kibana服务器尚未准备好，日志显示“无法连接到Elasticsearch。错误：30000毫秒后请求超时”

时间：2020-09-26 17:05:09

标签： elasticsearch kibana

  • 在CentOS Linux版本7.8.2003上新安装elasticsearch和kibana

  • kibana服务显示 Kibana server is not ready yet 

curl http://localhost:5601
Kibana server is not ready yet
  • Elasticsearch版本为：7.9.2 
curl http://127.0.0.1:9200
{
  "name" : "elkserver1",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "_na_",
  "version" : {
    "number" : "7.9.2",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "d34da0ea4a966c4e49417f2da2f244e3e97b4e6e",
    "build_date" : "2020-09-23T00:45:33.626720Z",
    "build_snapshot" : false,
    "lucene_version" : "8.6.2",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}
  • 基巴纳语版本
/usr/share/kibana/bin/kibana --version
7.9.2
  • 服务处于活动状态，没有错误
systemctl status kibana
● kibana.service - Kibana
   Loaded: loaded (/etc/systemd/system/kibana.service; disabled; vendor preset: disabled)
   Active: active (running) since Sat 2020-09-26 12:46:17 EDT; 9s ago
 Main PID: 22390 (node)
   CGroup: /system.slice/kibana.service
           └─22390 /usr/share/kibana/bin/../node/bin/node /usr/share/kibana/bin/../src/cli

Sep 26 12:46:17 elkserver1 systemd[1]: Started Kibana.
Sep 26 12:46:23 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:23Z","tags":["warning","plugins-discovery"],"pid":22390,"message":"Expect plugin \"id\" in camelCase, but found: beats_management"}
Sep 26 12:46:23 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:23Z","tags":["warning","plugins-discovery"],"pid":22390,"message":"Expect plugin \"id\" in camelCase, but found: triggers_actions_ui"}
  • network.host和http.port行未注释/etc/elasticsearch/elasticsearch.yml 
cat /etc/elasticsearch/elasticsearch.yml | grep 'network.host\|http.port'
network.host: localhost
http.port: 9200
  • elasticsearch.hosts在/etc/kibana/kibana.yml中未注释
cat /etc/kibana/kibana.yml | grep 'elasticsearch.hosts'
elasticsearch.hosts: ["http://localhost:9200"]
  • 防火墙已停止并禁用
  • Kibana日志显示无法连接到Elasticsearch。错误：30000毫秒后请求超时，但不确定是什么导致了此错误。
journalctl --follow --unit kibana
-- Logs begin at Sat 2020-09-26 08:45:46 EDT. --
Sep 26 12:46:35 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:35Z","tags":["warning","plugins","encryptedSavedObjects","config"],"pid":22390,"message":"Generating a random key for xpack.encryptedSavedObjects.encryptionKey. To be able to decrypt encrypted saved objects attributes after restart, please set xpack.encryptedSavedObjects.encryptionKey in kibana.yml"}
Sep 26 12:46:35 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:35Z","tags":["warning","plugins","ingestManager"],"pid":22390,"message":"Fleet APIs are disabled due to the Encrypted Saved Objects plugin using an ephemeral encryption key. Please set xpack.encryptedSavedObjects.encryptionKey in kibana.yml."}
Sep 26 12:46:35 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:35Z","tags":["warning","plugins","actions","actions"],"pid":22390,"message":"APIs are disabled due to the Encrypted Saved Objects plugin using an ephemeral encryption key. Please set xpack.encryptedSavedObjects.encryptionKey in kibana.yml."}
Sep 26 12:46:35 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:35Z","tags":["warning","plugins","alerts","plugins","alerting"],"pid":22390,"message":"APIs are disabled due to the Encrypted Saved Objects plugin using an ephemeral encryption key. Please set xpack.encryptedSavedObjects.encryptionKey in kibana.yml."}
Sep 26 12:46:35 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:35Z","tags":["info","plugins","monitoring","monitoring"],"pid":22390,"message":"config sourced from: production cluster"}
Sep 26 12:46:35 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:35Z","tags":["warning","plugins","monitoring","monitoring"],"pid":22390,"message":"X-Pack Monitoring Cluster Alerts will not be available: X-Pack plugin is not installed on the Elasticsearch cluster."}
Sep 26 12:46:35 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:35Z","tags":["info","savedobjects-service"],"pid":22390,"message":"Waiting until all Elasticsearch nodes are compatible with Kibana before starting saved objects migrations..."}
Sep 26 12:46:35 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:35Z","tags":["info","savedobjects-service"],"pid":22390,"message":"Starting saved objects migrations"}
Sep 26 12:46:35 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:46:35Z","tags":["warning","plugins","reporting","config"],"pid":22390,"message":"Chromium sandbox provides an additional layer of protection, but is not supported for Linux Centos 7.8.2003 OS. Automatically setting 'xpack.reporting.capture.browser.chromium.disableSandbox: true'."}
Sep 26 12:47:05 elkserver1 kibana[22390]: {"type":"log","@timestamp":"2020-09-26T16:47:05Z","tags":["warning","savedobjects-service"],"pid":22390,"message":"Unable to connect to Elasticsearch. Error: Request Timeout after 30000ms"}
  • 有什么建议可以解决这个问题？

1 个答案:

答案 0 :(得分：0)

@Rohan。感谢您的指导。 Finallay发现了问题。

  • 尽管curl -X GET http://127.0.0.1:9200显示了弹性簇状态。 集群“ cluster_uuid”为“ na ”。
curl http://127.0.0.1:9200
{
  "name" : "elkserver1",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "_na_",    >>> Cluster_uuid 
  "version" : {
    "number" : "7.9.2",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "d34da0ea4a966c4e49417f2da2f244e3e97b4e6e",
    "build_date" : "2020-09-23T00:45:33.626720Z",
    "build_snapshot" : false,
    "lucene_version" : "8.6.2",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}
  • journalctl --unit elasticsearch显示“尚未发现或选择主节点，选举需要一个ID为[8G5Afwq7Qkqs7vUjSGTAfg]的节点，已发现[{elkserver1} {VKd5Aef5SzyKLDfWFCzEqQ}” 
[2020-09-28T13:29:56,862][WARN ][o.e.c.c.ClusterFormationFailureHelper] [elkserver1] master not discovered or elected yet, an election requires a node with id [8G5Afwq7Qkqs7vUjSGTAfg], have discovered [{elkserver1}{VKd5Aef5SzyKLDfWFCzEqQ}{IgEkTEsURfih_IKP299QWw}{localhost}{127.0.0.1:9300}{dilmrt}{ml.machine_memory=8201424896, xpack.installed=true, transform.node=true, ml.max_open_jobs=20}] which is not a quorum; discovery will continue using [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]:9301, [::1]:9302, [::1]:9303, [::1]:9304, [::1]:9305] from hosts providers and [{elkserver1}{VKd5Aef5SzyKLDfWFCzEqQ}{IgEkTEsURfih_IKP299QWw}{localhost}{127.0.0.1:9300}{dilmrt}{ml.machine_memory=8201424896, xpack.installed=true, transform.node=true, ml.max_open_jobs=20}] from last-known cluster state; node term 1, last-accepted version 36 in term 1
  • 所以这是一个弹性搜索问题，而不是kibana的问题。由于这是一个新设置，因此我卸载了弹性搜索并重新安装了它。之后，kibina开始工作。
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