目录

1、下载

2、解压

3、启动

4、启动报错

5、参考资料：

---

1、下载

官网下载地址： https://www.elastic.co/cn/downloads/elasticsearch

2、解压

tar  -xvf  xxxx.tar.gz

3、启动

启动es不能用root，用root用户会报错

创建es用户步骤：

useradd es

设置密码：passwd es

然后对es用户授权目录elasticsearch-8.3.3 （重要） 
sudo chown -R es:es elasticsearch-8.3.3

切换到es用户： su es

启动es:  ./bin/elasticsearch

若想后台运行es，启动命令加上 -d，即 ./bin/elasticsearch -d

访问：http://127.0.0.1:9200

4、启动报错

1）没必要地图数据报错

org.elasticsearch.ElasticsearchException: not all primary shards of [.geoip_databases] index are active
        at org.elasticsearch.ingest.geoip.GeoIpDownloader.updateDatabases(GeoIpDownloader.java:135) ~[ingest-geoip-8.2.2.jar:8.2.2]
        at org.elasticsearch.ingest.geoip.GeoIpDownloader.runDownloader(GeoIpDownloader.java:275) [ingest-geoip-8.2.2.jar:8.2.2]
        at org.elasticsearch.ingest.geoip.GeoIpDownloaderTaskExecutor.nodeOperation(GeoIpDownloaderTaskExecutor.java:102) [ingest-geoip-8.2.2.jar:8.2.2]
        at org.elasticsearch.ingest.geoip.GeoIpDownloaderTaskExecutor.nodeOperation(GeoIpDownloaderTaskExecutor.java:48) [ingest-geoip-8.2.2.jar:8.2.2]
        at org.elasticsearch.persistent.NodePersistentTasksExecutor$1.doRun(NodePersistentTasksExecutor.java:42) [elasticsearch-8.2.2.jar:8.2.2]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:773) [elasticsearch-8.2.2.jar:8.2.2]
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:26) [elasticsearch-8.2.2.jar:8.2.2]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]
        at java.lang.Thread.run(Thread.java:833) [?:?]

解决：

因为他启动时会去更新地图的一些数据库，这里直接禁掉即可，用到时再说，配置文件conf/elasticsearch.yml，增加配置

1	ingest.geoip.downloader.enabled: false

2）访问http://127.0.0.1:9200没返回结果，可能是ssl验证，没必要可以值都设为false，路径conf/elasticsearch.yml

3）若内存爆满，可以改配置文件conf/jvm.options

增加

-Xms1g

 

-Xmx1g

按自己需求更改即可

5、参考资料：

Elasticsearch入门，这一篇就够了 - sunsky303 - 博客园

Elasticsearch: 权威指南 | Elastic