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elasticsearch - Kibana服务器尚未准备好,日志显示 “Unable to connect to Elasticsearch. Error: Request Timeout after 30000ms”

转载 作者:行者123 更新时间:2023-12-02 23:07:38 31 4
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  • 在CentOS Linux 7.8.2003版上新安装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版本是: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"
    }
  • Kibana版本
  • /usr/share/kibana/bin/kibana --version
    7.9.2
  • 服务处于 Activity 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"]
  • firewalld已停止并禁用
  • Kibana日志显示无法连接到Elasticsearch。错误:30000ms 后请求超时,但不确定是什么导致此错误。
  • 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?
  • 最佳答案

    @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 flex 簇状态。
    群集“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 flex 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 flex 搜索并重新安装了它。之后,基比纳开始工作。
  • 关于elasticsearch - Kibana服务器尚未准备好,日志显示 “Unable to connect to Elasticsearch. Error: Request Timeout after 30000ms”,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/64080428/

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