Centos7.2 安装Elasticsearch 6

下载 elasticsearch.6.0.0.tar.gz

迁移文件到usr/local中

mv elasticsearch-6.0..tar.gz /usr/local/
cd /usr/local
tar zxvf elasticsearch-6.0..tar.gz 

修改elasticsearch6.0.0文件夹的权限，es 规定 root 用户不能启动 es，所以需要使用一个其他用户来启动 es

[hongdada@localhost elasticsearch]$ ll
总用量
drwxr-xr-x.  hongdada hongdada      11月  : elasticsearch-6.0.
-rwxrw-rw-.   root     root      11月  : elasticsearch-6.0..tar.gz
[hongdada@localhost elasticsearch]$ chown -R root: elasticsearch-6.0.
chown: 正在更改"elasticsearch-6.0.0/lib/elasticsearch-6.0.0.jar" 的所有者: 不允许的操作
........
chown: 正在更改"elasticsearch-6.0.0" 的所有者: 不允许的操作
[hongdada@localhost elasticsearch]$ ll
总用量
drwxr-xr-x.  hongdada hongdada      11月  : elasticsearch-6.0.
-rwxrw-rw-.   root     root      11月  : elasticsearch-6.0..tar.gz
[hongdada@localhost elasticsearch]$ su
密码：
[root@localhost elasticsearch]# chown -R root: elasticsearch-6.0.
[root@localhost elasticsearch]# ll
总用量
drwxr-xr-x.  root root      11月  : elasticsearch-6.0.
-rwxrw-rw-.   root root  11月  : elasticsearch-6.0..tar.gz
[root@localhost elasticsearch]# chown -R hongdada:hongdada elasticsearch-6.0.
[root@localhost elasticsearch]# ll
总用量
drwxr-xr-x.  hongdada hongdada      11月  : elasticsearch-6.0.
-rwxrw-rw-.   root     root      11月  : elasticsearch-6.0..tar.gz

因为本来已经设置好了，为了copy命令重新改了权限

现在就可以访问本地的，但是该主机的ip192.168.1.108此时并不能访问。

要访问主机的ip,需要修改config/elasticsearch.yml文件

network.host: 0.0.0.0

取消network.host前面的注释#，并修改ip为0.0.0.0，或者本机的外网ip192.168.1.108都可以，但是0.0.0.0适用范围广。

修改配置以后要重启es,但是es的重启还有点烦，要先杀死es进程关闭，然后再次启动

重启：

[hongdada@localhost elasticsearch-6.0.]$ cd bin
[hongdada@localhost bin]$ ps -ef |grep elastic
hongdada         : pts/    :: grep --color=auto elastic
[hongdada@localhost bin]$ ps -ef |grep elasticsearch
hongdada         : pts/    :: grep --color=auto elasticsearch
[hongdada@localhost bin]$ sh elasticsearch -d
[hongdada@localhost bin]$ ps -ef |grep elastic
hongdada           : pts/    :: /usr/local/jdk/jdk1..0_121/bin/java -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction= -XX:+UseCMSInitiatingOccupancyOnly -XX:+AlwaysPreTouch -server -Xss1m -Djava.awt.headless=true -Dfile.encoding=UTF- -Djna.nosys=true -XX:-OmitStackTraceInFastThrow -Dio.netty.noUnsafe=true -Dio.netty.noKeySetOptimization=true -Dio.netty.recycler.maxCapacityPerThread= -Dlog4j.shutdownHookEnabled=false -Dlog4j2.disable.jmx=true -XX:+HeapDumpOnOutOfMemoryError -Des.path.home=/usr/local/elasticsearch/elasticsearch-6.0. -Des.path.conf=/usr/local/elasticsearch/elasticsearch-6.0./config -cp /usr/local/elasticsearch/elasticsearch-6.0./lib/* org.elasticsearch.bootstrap.Elasticsearch -d
hongdada   6586   6411  0 22:41 pts/0    00:00:00 grep --color=auto elastic
[hongdada@localhost bin]$ 

kill:

kill - 

再次启动：

sh elasticsearch -d

安装过程中的异常：

[hongdada@localhost bin]$ sh elasticsearch
[--23T23::,][INFO ][o.e.n.Node               ] [] initializing ...
[--23T23::,][INFO ][o.e.e.NodeEnvironment    ] [l2KjKQB] using [] data paths, mounts [[/ (rootfs)]], net usable_space [.4gb], net total_space [.5gb], types [rootfs]
[--23T23::,][INFO ][o.e.e.NodeEnvironment    ] [l2KjKQB] heap size [.8mb], compressed ordinary object pointers [true]
[--23T23::,][INFO ][o.e.n.Node               ] node name [l2KjKQB] derived from node ID [l2KjKQBBSRacQ3kzNB2Qgg]; set [node.name] to override
[--23T23::,][INFO ][o.e.n.Node               ] version[6.0.], pid[], build[8f0685b/--10T18::.859Z], OS[Linux/3.10.-514.26..el7.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) -Bit Server VM/1.8.0_121/25.121-b13]
[--23T23::,][INFO ][o.e.n.Node               ] JVM arguments [-Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -XX:+HeapDumpOnOutOfMemoryError, -Des.path.home=/usr/local/elasticsearch/elasticsearch-6.0., -Des.path.conf=/usr/local/elasticsearch/elasticsearch-6.0./config]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [aggs-matrix-stats]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [analysis-common]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [ingest-common]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [lang-expression]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [lang-mustache]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [lang-painless]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [parent-join]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [percolator]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [reindex]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [repository-url]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [transport-netty4]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] loaded module [tribe]
[--23T23::,][INFO ][o.e.p.PluginsService     ] [l2KjKQB] no plugins loaded
[--23T23::,][INFO ][o.e.d.DiscoveryModule    ] [l2KjKQB] using discovery type [zen]
[--23T23::,][INFO ][o.e.n.Node               ] initialized
[--23T23::,][INFO ][o.e.n.Node               ] [l2KjKQB] starting ...
[--23T23::,][INFO ][o.e.t.TransportService   ] [l2KjKQB] publish_address {192.168.1.108:}, bound_addresses {[::]:}
[--23T23::,][INFO ][o.e.b.BootstrapChecks    ] [l2KjKQB] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
ERROR: [] bootstrap checks failed
[]: max file descriptors [] for elasticsearch process is too low, increase to at least []
[]: max virtual memory areas vm.max_map_count [] is too low, increase to at least []
[--23T23::,][INFO ][o.e.n.Node               ] [l2KjKQB] stopping ...
[--23T23::,][INFO ][o.e.n.Node               ] [l2KjKQB] stopped
[--23T23::,][INFO ][o.e.n.Node               ] [l2KjKQB] closing ...
[--23T23::,][INFO ][o.e.n.Node               ] [l2KjKQB] closed

这里面很明显的有两个参数的值太小

1.max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]

修改/etc/security/limits.conf文件，添加或修改如下行：

*        hard    nofile
*        soft    nofile           

2.max virtual memory areas vm.max......

修改 /etc/sysctl.conf 文件,添加如下行：

vm.max_map_count=

修改好了以后，调用sysctl -a查看，发现参数并没有变动，要重启才可以。

重启以后，再启动es即可，就可以通过主机ip访问。

这个时候可以在本机通过本机ip访问，还没有开防火墙，外网是不可以访问的。

https://www.biaodianfu.com/centos-7-install-elasticsearch.html

http://blog.csdn.net/sinat_29581293/article/details/53894033

http://blog.csdn.net/lu_wei_wei/article/details/51263153

http://blog.csdn.net/kongxx/article/details/52993057

http://blog.csdn.net/Gamer_gyt/article/details/52960941