elasticsearch安装——linux集群方式

我不是女神ヾ 2022-06-12 11:42 305阅读 0赞

# elasticsearch安装——linux集群方式 #

安装elasticsearch在Linux下的方法如下。如果想要在windows上运行的话，请参考文章：

http://blog.csdn.net/wild46cat/article/details/62040347

好，下面上货。

1、下载elasticsearch

https://www.elastic.co/downloads/elasticsearch

2、解压到指定文件夹

3、修改配置文件 /config/elasticsearch.yml

\--集群名称  
cluster.name: xy-application  
\--数据存放路径  
path.data: /var/elaticsearch/data  
\--日志存放路径  
path.logs: /var/elaticsearch/logs  
\---当前节点名称  
node.name: cdh4  
\--设置ip地址  
network.host: cdh4  
\--设置端口号  
http.port: 9200

4、需要设置java至少为1.8(因为现在机器上的java是1.7 的，而且不想换成1.8，但是es需要1.8，所以需要单独为es配置一个java版本)就是下载一个Java1.8版本的，然后在/bin/elasticsearch文件中进行修改即可。

if [ -x "$ELASTICSEARCH_HOME/jdk1.8.0_141/bin/java" ]; then
        JAVA="$ELASTICSEARCH_HOME/jdk1.8.0_141/bin/java"
    else
        JAVA=`which java`
    fi

5、运行后出现异常

org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
    	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:127) ~[elasticsearch-5.5.0.jar:5.5.0]
    	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:114) ~[elasticsearch-5.5.0.jar:5.5.0]
    	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:67) ~[elasticsearch-5.5.0.jar:5.5.0]
    	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122) ~[elasticsearch-5.5.0.jar:5.5.0]
    	at org.elasticsearch.cli.Command.main(Command.java:88) ~[elasticsearch-5.5.0.jar:5.5.0]
    	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) ~[elasticsearch-5.5.0.jar:5.5.0]
    	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) ~[elasticsearch-5.5.0.jar:5.5.0]
    Caused by: java.lang.RuntimeException: can not run elasticsearch as root
    	at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:106) ~[elasticsearch-5.5.0.jar:5.5.0]
    	at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:194) ~[elasticsearch-5.5.0.jar:5.5.0]
    	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:351) ~[elasticsearch-5.5.0.jar:5.5.0]
    	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:123) ~[elasticsearch-5.5.0.jar:5.5.0]

解决方法：

添加用户  
adduser  elasticsearch  
passwd elasticsearch  
  
修改elasticsearch的所属用户和所属组   
chown -R elasticsearch:root /elasticsearch5.5.0/  
chown -R elasticsearch:root /var/elaticsearch/

6、运行后出现下列错误

[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
    [2]: memory locking requested for elasticsearch process but memory is not locked
    [3]: max number of threads [1024] for user [elasticsearch] is too low, increase to at least [2048]
    [4]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
    [5]: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk

解决方法：

\[1\]

/etc/security/limits.config文件末尾添加  
这里的elasticsearch代表的是用户名  
  
\* soft nofile 65536  
\* hard nofile 131072  
\* soft nproc 2048  
\* hard nproc 4096

\[2\]

在/config/elasticsearch.yml中不能有

\#bootstrap.memory\_lock: true

\[3\]

切换到root用户，进入limits.d目录下修改配置文件。  
vim /etc/security/limits.d/90-nproc.conf   
修改如下内容：  
\* soft nproc 1024  
\#修改为  
\* soft nproc 2048

\[4\]  
vim /etc/sysctl.conf   
添加如下内容  
vm.max\_map\_count=262144  
然后执行命令  
sysctl -p

\[5\]  
添加confi/elasticsearch.yml设置  
bootstrap.memory\_lock: false   
bootstrap.system\_call\_filter: false

7、再次运行：

2017-07-22T15:55:37,018][INFO ][o.e.n.Node               ] [cdh4] initializing ...
    [2017-07-22T15:55:37,370][INFO ][o.e.e.NodeEnvironment    ] [cdh4] using [1] data paths, mounts [[/ (/dev/mapper/vg_cdh4-lv_root)]], net usable_space [30gb], net total_space [49gb], spins? [possibly], types [ext4]
    [2017-07-22T15:55:37,372][INFO ][o.e.e.NodeEnvironment    ] [cdh4] heap size [503.6mb], compressed ordinary object pointers [true]
    [2017-07-22T15:55:37,374][INFO ][o.e.n.Node               ] [cdh4] node name [cdh4], node ID [Udy2p33YRT2pnWGiQLxo2A]
    [2017-07-22T15:55:37,377][INFO ][o.e.n.Node               ] [cdh4] version[5.5.0], pid[933], build[260387d/2017-06-30T23:16:05.735Z], OS[Linux/2.6.32-642.el6.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_141/25.141-b15]
    [2017-07-22T15:55:37,380][INFO ][o.e.n.Node               ] [cdh4] JVM arguments [-Xms512m, -Xmx512m, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+DisableExplicitGC, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -Djdk.io.permissionsUseCanonicalPath=true, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -Dlog4j.skipJansi=true, -XX:+HeapDumpOnOutOfMemoryError, -Des.path.home=/elasticsearch-5.5.0]
    [2017-07-22T15:55:42,159][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [aggs-matrix-stats]
    [2017-07-22T15:55:42,159][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [ingest-common]
    [2017-07-22T15:55:42,159][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [lang-expression]
    [2017-07-22T15:55:42,159][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [lang-groovy]
    [2017-07-22T15:55:42,159][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [lang-mustache]
    [2017-07-22T15:55:42,160][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [lang-painless]
    [2017-07-22T15:55:42,161][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [parent-join]
    [2017-07-22T15:55:42,161][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [percolator]
    [2017-07-22T15:55:42,161][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [reindex]
    [2017-07-22T15:55:42,162][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [transport-netty3]
    [2017-07-22T15:55:42,162][INFO ][o.e.p.PluginsService     ] [cdh4] loaded module [transport-netty4]
    [2017-07-22T15:55:42,165][INFO ][o.e.p.PluginsService     ] [cdh4] no plugins loaded
    [2017-07-22T15:55:51,664][INFO ][o.e.d.DiscoveryModule    ] [cdh4] using discovery type [zen]
    [2017-07-22T15:55:54,461][INFO ][o.e.n.Node               ] [cdh4] initialized
    [2017-07-22T15:55:54,470][INFO ][o.e.n.Node               ] [cdh4] starting ...
    [2017-07-22T15:55:55,364][INFO ][o.e.t.TransportService   ] [cdh4] publish_address {192.168.0.84:9300}, bound_addresses {192.168.0.84:9300}
    [2017-07-22T15:55:55,445][INFO ][o.e.b.BootstrapChecks    ] [cdh4] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
    [2017-07-22T15:55:58,768][INFO ][o.e.c.s.ClusterService   ] [cdh4] new_master {cdh4}{Udy2p33YRT2pnWGiQLxo2A}{gNzLgpezT3S0klHQ-6rYRQ}{cdh4}{192.168.0.84:9300}, reason: zen-disco-elected-as-master ([0] nodes joined)
    [2017-07-22T15:55:58,886][INFO ][o.e.h.n.Netty4HttpServerTransport] [cdh4] publish_address {192.168.0.84:9200}, bound_addresses {192.168.0.84:9200}
    [2017-07-22T15:55:58,886][INFO ][o.e.n.Node               ] [cdh4] started
    [2017-07-22T15:55:58,922][INFO ][o.e.g.GatewayService     ] [cdh4] recovered [0] indices into cluster_state

8、访问cdh4:9200

![Center][]

同时再看一下当前的节点的情况

![Center 1][]

这样就完成了单点的搭建。

9、然后是搭建集群，需要在其他的机器上进行同样的设置（集群名称）。

10、如果想要修改成集群模式，那么需要修改/conf/elasticsearch.yml

discovery.zen.ping.unicast.hosts: \["cdh4", "cdh5","cdh6"\]

11、然后启动另一台机器的es。

访问cdh4:9200/\_cat/nodes?v

![Center 2][]

12、最后附上一个自己的配置

cluster.name: my-application
    node.name: node-1
    node.data: true
    path.data: /data/es_data
    path.logs: /data/es_log/logs
    bootstrap.memory_lock: false
    bootstrap.system_call_filter: false
    network.host: 192.168.0.66
    #discovery.zen.ping.unicast.hosts: ["192.168.1.62:9300","192.168.0.63:9300"]
    action.destructive_requires_name: true
    action.auto_create_index: false
    indices.store.throttle.type: merge
    indices.store.throttle.max_bytes_per_sec: 50mb
    http.cors.enabled: true
    http.cors.allow-origin: "*"

[Center]: /images/20220612/28c0d845261541f09be11e6f98c4fc90.png
[Center 1]: /images/20220612/6c26f68f39664dada8b433caa4b874a3.png
[Center 2]: /images/20220612/6f5872582aa74f69a039158608f6c930.png