Elasticsearch：嘗試啟動 elasticsearch 時出現“錯誤：elasticsearch 意外退出”

Question

我正在嘗試通過從 elasticsearch 目錄運行.bin/elasticsearch來啟動 elasticsearch。 但是，我不斷收到錯誤消息ERROR: Elasticsearch exited unexpectedly 。 可能的解決方案是什么？

我使用以下命令從 linux 上的存檔安裝了 Elasticsearch。

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.3.3-linux-x86_64.tar.gz

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.3.3-linux-x86_64.tar.gz.sha512

shasum -a 512 -c elasticsearch-8.3.3-linux-x86_64.tar.gz.sha512 

tar -xzf elasticsearch-8.3.3-linux-x86_64.tar.gz

cd elasticsearch-8.3.3/ 

下面是我從 elasticsearch.log 文件中得到的更多錯誤日志

[2022-08-17T00:32:36,417][ERROR][o.e.b.Bootstrap          ] [blessed-Lenovo-ideapad-110-15IBR] Exception
java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:99) ~[elasticsearch-8.3.3.jar:?]
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:179) ~[elasticsearch-8.3.3.jar:?]
    at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) [elasticsearch-8.3.3.jar:?]
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:224) [elasticsearch-8.3.3.jar:?]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:67) [elasticsearch-8.3.3.jar:?]
[2022-08-17T00:32:36,855][ERROR][o.e.b.Elasticsearch      ] [blessed-Lenovo-ideapad-110-15IBR] fatal exception while booting Elasticsearch
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:228) [elasticsearch-8.3.3.jar:?]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:67) [elasticsearch-8.3.3.jar:?]
Caused by: java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:99) ~[elasticsearch-8.3.3.jar:?]
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:179) ~[elasticsearch-8.3.3.jar:?]
    at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) ~[elasticsearch-8.3.3.jar:?]
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:224) ~[elasticsearch-8.3.3.jar:?]
    ... 1 more

Answer 1

你能檢查一下嗎

ls -ltd elasticsearch-8.3.3

並在此處給出 output（關於目錄權限）。

Answer 2

在 Docker 中將 Elasticsearch 作為容器運行時，我遇到了這個問題。 允許 Docker 保留更多資源為我修復了它。 我試過，在我的設置中，至少需要 6 GB RAM 才能運行穩定的 Elasticsearch 單節點集群。