1，安裝配置JDK 8

參考：官方文件

＃為什麼是JDK1.8？在ElasticSearch6.2.4中提到：JDK版本必須為：1.8.0_131 以上

> 1，安裝JDK1.8-161

＃解壓tar.gz
tar -zxvf jdk-8u161-linux-x64.tar.gz

> 2，配置環境變數

vim /etc/profile.d/dev.sh
# Set Dev Path
JAVA_HOME=/usr/local/java/jdk1.8.0_161/
export JAVA_HOME
 
export PATH=$PATH:$JAVA_HOME/bin

＃生效變數
source /etc/profile.d/dev.sh
 

[[email protected] gameServer local] java -version
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)

2，增加使用者（ElasticSearch不允許Root啟動）

Root啟動異常為:can not run elasticsearch as root 

[[email protected] local] #adduser payment
[
 
[email protected] local]＃passwd payment
Changing password for user payment.
New password: 
BAD PASSWORD: The password is shorter than 8 characters
Retype new password: 
passwd: all authentication tokens updated successfully.

3，下載ElasticSearch

[[email protected] ~]$ cd elasticSearch/
[[email protected]
 
 elasticSearch]$ wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.2.4.tar.gz
--2018-06-05 21:14:44--  https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.2.4.tar.gz
正在解析主機 artifacts.elastic.co... 54.235.171.120, 54.235.82.130, 23.21.67.46, ...
正在連線 artifacts.elastic.co|54.235.171.120|:443... 已連線。
已發出 HTTP 請求，正在等待迴應... 200 OK
長度：29056810 (28M) [binary/octet-stream]
正在儲存至: “elasticsearch-6.2.4.tar.gz”

 100%[========================================================================================>] 29,056,810   387K/s   in 93s     

2018-06-05 21:16:19 (304 KB/s) - 已儲存 “elasticsearch-6.2.4.tar.gz” [29056810/29056810])

[[email protected] elasticSearch]$ tar -zxvf elasticsearch-6.2.4.tar.gz 
[[email protected] elasticSearch]$ cd elasticsearch-6.2.4

4，配置ElasticSearch和Linux 

[[email protected] elasticsearch-6.2.4]$ vim config/elasticsearch.yml
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 172.17.63.15
#
# Set a custom port for HTTP:
#
http.port: 9200

5、 啟動ElasticSearch

eg:如果報錯不要慌張、隨後有解決方案

    1>、控制檯啟動：

[[email protected] elasticsearch-6.2.4]$ ./bin/elasticsearch
[2018-06-06T10:29:18,432][INFO ][o.e.n.Node               ] [] initializing ...
[2018-06-06T10:29:18,614][INFO ][o.e.e.NodeEnvironment    ] [SdEluaQ] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [402.8gb], net total_space [442.7gb], types [rootfs]
[2018-06-06T10:29:18,614][INFO ][o.e.e.NodeEnvironment    ] [SdEluaQ] heap size [990.7mb], compressed ordinary object pointers [true]
[2018-06-06T10:29:18,616][INFO ][o.e.n.Node               ] node name [SdEluaQ] derived from node ID [SdEluaQkTfi1p-yRtlxHSA]; set [node.name] to override
[2018-06-06T10:29:18,616][INFO ][o.e.n.Node               ] version[6.2.4], pid[26954], build[ccec39f/2018-04-12T20:37:28.497551Z], OS[Linux/2.6.32-696.28.1.el6.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_161/25.161-b12]
[2018-06-06T10:29:18,616][INFO ][o.e.n.Node               ] JVM arguments [-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, -Djava.io.tmpdir=/tmp/elasticsearch.lVPlg9Y5, -XX:+HeapDumpOnOutOfMemoryError, -XX:+PrintGCDetails, -XX:+PrintGCDateStamps, -XX:+PrintTenuringDistribution, -XX:+PrintGCApplicationStoppedTime, -Xloggc:logs/gc.log, -XX:+UseGCLogFileRotation, -XX:NumberOfGCLogFiles=32, -XX:GCLogFileSize=64m, -Des.path.home=/home/payment/elasticSearch/elasticsearch-6.2.4, -Des.path.conf=/home/payment/elasticSearch/elasticsearch-6.2.4/config]
[2018-06-06T10:29:19,137][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [aggs-matrix-stats]
[2018-06-06T10:29:19,137][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [analysis-common]
[2018-06-06T10:29:19,137][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [ingest-common]
[2018-06-06T10:29:19,137][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [lang-expression]
[2018-06-06T10:29:19,137][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [lang-mustache]
[2018-06-06T10:29:19,137][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [lang-painless]
[2018-06-06T10:29:19,137][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [mapper-extras]
[2018-06-06T10:29:19,138][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [parent-join]
[2018-06-06T10:29:19,138][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [percolator]
[2018-06-06T10:29:19,138][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [rank-eval]
[2018-06-06T10:29:19,138][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [reindex]
[2018-06-06T10:29:19,138][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [repository-url]
[2018-06-06T10:29:19,138][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [transport-netty4]
[2018-06-06T10:29:19,138][INFO ][o.e.p.PluginsService     ] [SdEluaQ] loaded module [tribe]
[2018-06-06T10:29:19,139][INFO ][o.e.p.PluginsService     ] [SdEluaQ] no plugins loaded
[2018-06-06T10:29:21,350][INFO ][o.e.d.DiscoveryModule    ] [SdEluaQ] using discovery type [zen]
[2018-06-06T10:29:21,752][INFO ][o.e.n.Node               ] initialized
[2018-06-06T10:29:21,752][INFO ][o.e.n.Node               ] [SdEluaQ] starting ...
[2018-06-06T10:29:21,845][INFO ][o.e.t.TransportService   ] [SdEluaQ] publish_address {172.17.63.15:9300}, bound_addresses {172.17.63.15:9300}
[2018-06-06T10:29:21,851][INFO ][o.e.b.BootstrapChecks    ] [SdEluaQ] bound or publishing to a non-loopback address, enforcing bootstrap checks
[2018-06-06T10:29:24,903][INFO ][o.e.c.s.MasterService    ] [SdEluaQ] zen-disco-elected-as-master ([0] nodes joined), reason: new_master {SdEluaQ}{SdEluaQkTfi1p-yRtlxHSA}{e6G8iUkmRNerO3aI9nqZnA}{172.17.63.15}{172.17.63.15:9300}
[2018-06-06T10:29:24,907][INFO ][o.e.c.s.ClusterApplierService] [SdEluaQ] new_master {SdEluaQ}{SdEluaQkTfi1p-yRtlxHSA}{e6G8iUkmRNerO3aI9nqZnA}{172.17.63.15}{172.17.63.15:9300}, reason: apply cluster state (from master [master {SdEluaQ}{SdEluaQkTfi1p-yRtlxHSA}{e6G8iUkmRNerO3aI9nqZnA}{172.17.63.15}{172.17.63.15:9300} committed version [1] source [zen-disco-elected-as-master ([0] nodes joined)]])
[2018-06-06T10:29:24,921][INFO ][o.e.h.n.Netty4HttpServerTransport] [SdEluaQ] publish_address {172.17.63.15:9200}, bound_addresses {172.17.63.15:9200}
[2018-06-06T10:29:24,921][INFO ][o.e.n.Node               ] [SdEluaQ] started
[2018-06-06T10:29:25,048][INFO ][o.e.g.GatewayService     ] [SdEluaQ] recovered [0] indices into cluster_state

2、控制檯啟動下：停止(Ctrl+C)

^C[2018-06-06T10:49:13,825][INFO ][o.e.n.Node               ] [SdEluaQ] stopping ...
[2018-06-06T10:49:13,864][INFO ][o.e.n.Node               ] [SdEluaQ] stopped
[2018-06-06T10:49:13,865][INFO ][o.e.n.Node               ] [SdEluaQ] closing ...
[2018-06-06T10:49:13,876][INFO ][o.e.n.Node               ] [SdEluaQ] closed
[[email protected] elasticsearch-6.2.4]$ 

3、後臺啟動

[[email protected] elasticsearch-6.2.4]$ ./bin/elasticsearch -d
[[email protected] elasticsearch-6.2.4]$ 

4、驗證

[[email protected] elasticsearch-6.2.4]$ curl "http://172.17.63.15:9200"
{
  "name" : "SdEluaQ",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "Oz0crt7uRTeVgPX0EFZ3Kg",
  "version" : {
    "number" : "6.2.4",
    "build_hash" : "ccec39f",
    "build_date" : "2018-04-12T20:37:28.497551Z",
    "build_snapshot" : false,
    "lucene_version" : "7.2.1",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

本機瀏覽器中：

如果訪問不通：請確保能ping通 es配置的IP

6、安裝相關問題彙總：

    1>、Centos6 安裝啟動失敗：

ERROR: [1] bootstrap checks failed
[1]: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk

        解決方案 參考文件：

[[email protected] elasticsearch-6.2.4]$ vim config/elasticsearch.yml
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
#
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.

    2>、ERROR: bootstrap checks failed

max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]
max number of threads [1024] for user [lishang] likely too low, increase to at least [2048]

解決方案：Root使用者修改

vim /etc/security/limits.conf 
新增如下內容:
* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096

    3>、max number of threads [1024] for user [lish] likely too low, increase to at least [4096]

  解決方案:Root使用者修改

vim /etc/security/limits.d/90-nproc.conf
*          soft    nproc     4096
root       soft    nproc     unlimited

    4>，最大虛擬記憶體區域vm.max_map_count [65530]可能太低，增加到至少[262144]

解決方案：根使用者修改

vim /etc/sysctl.conf 
＃新增如下配置並儲存
vm.max_map_count = 655360

[root @ gameServer〜]＃sysctl -p
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
vm.max_map_count = 655360

一年沒寫部落格，主要是一年來一直在忙需求（找個藉口，犯懶了），日夜操勞，前段時間生病了，這個首先把ElasticSearch6相關的寫完吧，邊工作邊寫，專案中剛開始用