文章内容
1、JDK安装
2、ElasticSearch安装
1 2 3 4 | cd /tools wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.1.3.zip unzip elasticsearch-6.1.3.zip mv ./elasticsearch-6.1.3 /usr/local/elasticsearch |
3、创建Linux用户
1 2 3 4 | cd /usr/local groupadd elasticsearch useradd -g elasticsearch elasticsearch chown elasticsearch:elasticsearch -R elasticsearch |
4、设置开机启动
若是本地访问，直接把iptables关掉了
1 2 3 4 | vim /etc/rc.d/rc.local service iptables stop su elasticsearch -c "/usr/local/elasticsearch/bin/elasticsearch -d" |
注意：由于ElasticSearch可以接收用户输入的脚本并运行，为了系统安全考虑，ElasticSearch默认不允许root账户直接启动
5、报错处理
报错：
1 2 3 4 5 6 7 | $./bin/elasticsearchJava HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000085330000, 2060255232, 0) failed; error='Cannot allocate memory' (errno=12)## There is insufficient memory for the Java Runtime Environment to continue.# Native memory allocation (mmap) failed to map 2060255232 bytes for committing reserved memory.# An error report file with more information is saved as:# /data/elasticsearch-5.2.2/hs_err_pid26945.log |
解决方案：调小启动内存
01 02 03 04 05 06 07 08 09 10 11 12 | # vi /usr/local/elasticsearch/config/jvm.options#-Xms2g#-Xmx2g-Xms256m-Xmx64m# Xms represents the initial size of total heap space# Xmx represents the maximum size of total heap space-Xms128m-Xmx128m |
上面设置的分配的内存的最大值为256MB和最小值64MB，可以根据自己的机器情况设置内存大小。上面的内存一定要修改设置，除非系统内存很大，2G的机器，建议修改内存大小，否则将启动失败
下面是一个使用默认配置启动失败的log：
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 | [root@vultr local]# su elasticsearch -c "/usr/local/elasticsearch/bin/elasticsearch "[2018-06-23T05:31:43,284][INFO ][o.e.n.Node ] [] initializing ...[2018-06-23T05:31:43,458][INFO ][o.e.e.NodeEnvironment ] [3NDH7pj] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [30.2gb], net total_space [39.3gb], types [rootfs][2018-06-23T05:31:43,458][INFO ][o.e.e.NodeEnvironment ] [3NDH7pj] heap size [1015.6mb], compressed ordinary object pointers [true][2018-06-23T05:31:43,461][INFO ][o.e.n.Node ] node name [3NDH7pj] derived from node ID [3NDH7pjFRkqGJK-esxelQw]; set [node.name] to override[2018-06-23T05:31:43,461][INFO ][o.e.n.Node ] version[6.1.3], pid[1566], build[af51318/2018-01-26T18:22:55.523Z], OS[Linux/3.10.0-862.3.2.el7.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_66/25.66-b17][2018-06-23T05:31:43,461][INFO ][o.e.n.Node ] JVM arguments [-Xms256m, -Xmx64m, -Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -XX:+HeapDumpOnOutOfMemoryError, -Des.path.home=/usr/local/elasticsearch, -Des.path.conf=/usr/local/elasticsearch/config][2018-06-23T05:31:45,916][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [aggs-matrix-stats][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [analysis-common][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [ingest-common][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [lang-expression][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [lang-mustache][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [lang-painless][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [mapper-extras][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [parent-join][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [percolator][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [reindex][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [repository-url][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [transport-netty4][2018-06-23T05:31:45,917][INFO ][o.e.p.PluginsService ] [3NDH7pj] loaded module [tribe][2018-06-23T05:31:45,918][INFO ][o.e.p.PluginsService ] [3NDH7pj] no plugins loadedKilled |
6、配置文件设置
1 | vim /usr/local/elasticsearch/config/elasticsearch.yml |
修改如下：
1 2 3 | cluster.name: TA-application node.name: node-210 network.host: 192.168.0.1 |
- 其中cluster.name 是集群名称，这个不要使用默认的，要修改，去掉注释，如果有多个机器，加入同一个集群，那么这个值必须一样
- noide.name 是集群里面每个节点的值，也就是当前机器的节点的值，这个值，每个节点要不一样
- network host 改成当前的内网ip
7、查看版本
elasticSearch启动后，查看版本：
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 | [root@iZ942k2d5ezZ fecbbc]# curl -XGET localhost:9200{ "name" : "VRV7sNu", "cluster_name" : "elasticsearch", "cluster_uuid" : "QEStHWtpShy4TtgTrMMTfA", "version" : { "number" : "6.1.3", "build_hash" : "af51318", "build_date" : "2018-01-26T18:22:55.523Z", "build_snapshot" : false, "lucene_version" : "7.1.0", "minimum_wire_compatibility_version" : "5.6.0", "minimum_index_compatibility_version" : "5.0.0" }, "tagline" : "You Know, for Search"} |
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