详解centos7虚拟机安装elasticsearch5.0.x-安装篇-Linux老运维

centos7虚拟机安装elasticsearch5.0.x-安装篇

请预先安装jdk详细步骤

创建新用户（非root用户）

elasticsearch只能用非root启动，这里我创建了一个叫seven的用户

1 2	`[root@localhost ~]` `# useradd seven` `[root@localhost ~]` `# passwd seven`

下载elasticsearch

[root@localhost ~]
# su seven

[seven@localhost root]$
cd
/home/seven

[seven@localhost ~]$
mkdir
download

[seven@localhost ~]$
cd
download

[seven@localhost download]$ wget https:
//download
.elastic.co
/elasticsearch/release/org/elasticsearch/distribution/tar/elasticsearch/5
.0.0-alpha3
/elasticsearch-5
.0.0-alpha3.
tar
.gz

解压并运行elasticsearch

解压

1	`[seven@localhost download]$` `tar` `-zxvf elasticsearch-5.0.0-alpha3.` `tar` `.gz`

移动到指定文件夹并重命名（方便管理）

1	`[seven@localhost download]$` `mv` `elasticsearch-5.0.0-alpha3` `/usr/java/elasticsearch`

修改访问elasticsearch的IP及端口

1	`[seven@localhost config]$ vim` `/usr/java/elasticsearch/config/elasticsearch` `.yml`

找到如下代码段，并取消network.host及http.port所在行的注释，修改IP及端口

# ---------------------------------- Network -----------------------------------

#

# Set the bind address to a specific IP (IPv4 or IPv6):

#

network.host: 192.168.0.155

#

# Set a custom port for HTTP:

#

http.port: 9200

#

# For more information, see the documentation at:

#

直接运行bin/elasticsearch文件启动elasticsearch

1 2	`[seven@localhost bin]$` `cd` `/usr/java/elasticsearch/bin/` `[seven@localhost bin]$ .` `/elasticsearch`

启动时发现报错了。。。

[seven@localhost bin]$ .
/elasticsearch

[2016-06-28 13:49:27,899][INFO ][node ] [Mondo] version[5.0.0-alpha3], pid[3671], build[cad959b
/2016-05-26T08
:25:57.564Z], OS[Linux
/3
.10.0-327.el7.x86_64
/amd64
], JVM[Oracle Corporation
/Java
HotSpot(TM) 64-Bit Server VM
/1
.0_91
/25
.91-b14]

▽2016-06-28 13:49:27,900][INFO ][node ] [Mondo] initializing ...

[2016-06-28 13:49:28,941][INFO ][plugins     ] [Mondo] modules [percolator, lang-mustache, lang-painless, ingest-grok, reindex, lang-expression, lang-groovy], plugins []

[2016-06-28 13:49:28,963][INFO ][
env

] [Mondo] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [15.7gb], net total_space [17.4gb], spins? [unknown], types [rootfs]

[2016-06-28 13:49:28,963][INFO ][
env
] [Mondo] heap size [1.9gb], compressed ordinary object pointers [
true
]

[2016-06-28 13:49:31,980][INFO ][node ] [Mondo] initialized

[2016-06-28 13:49:31,980][INFO ][node ] [Mondo] starting ...

[2016-06-28 13:49:32,115][INFO ][transport    ] [Mondo] publish_address {192.168.0.155:9300}, bound_addresses {192.168.0.155:9300}

Exception
in
thread
"main"
java.lang.RuntimeException: bootstrap checks failed

initial heap size [268435456] not equal to maximum heap size [2147483648]; this can cause resize pauses and prevents mlockall from locking the entire heap

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

please
set
[discovery.zen.minimum_master_nodes] to a majority of the number of master eligible nodes
in
your cluster

max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]

at org.elasticsearch.bootstrap.BootstrapCheck.check(BootstrapCheck.java:125)

at org.elasticsearch.bootstrap.BootstrapCheck.check(BootstrapCheck.java:85)

at org.elasticsearch.bootstrap.BootstrapCheck.check(BootstrapCheck.java:65)

at org.elasticsearch.bootstrap.Bootstrap$5.validateNodeBeforeAcceptingRequests(Bootstrap.java:183)

at org.elasticsearch.node.Node.start(Node.java:337)

at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:198)

at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:257)

at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:96)

at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:91)

at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54)

at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:91)

at org.elasticsearch.cli.Command.main(Command.java:53)

at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:70)

at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:63)

Refer to the log
for
complete error details.

[2016-06-28 13:49:32,144][INFO ][node ] [Mondo] stopping ...

[2016-06-28 13:49:32,198][INFO ][node ] [Mondo] stopped

[2016-06-28 13:49:32,198][INFO ][node ] [Mondo] closing ...

[2016-06-28 13:49:32,210][INFO ][node ] [Mondo] closed

于是我临时提高了vm.max_map_count的大小

*此操作需要root权限

1	`[root@localhost ~]` `# sysctl -w vm.max_map_count=262144`

查看修改结果

1 2	`[root@localhost ~]` `# sysctl -a\|grep vm.max_map_count` `vm.max_map_count = 262144`

或者永久性修改

[root@localhost ~]
# cat /etc/sysctl.conf | grep -v "vm.max_map_count" > /tmp/system_sysctl.conf

[root@localhost ~]
# echo "vm.max_map_count=262144" >> /tmp/system_sysctl.conf

[root@localhost ~]
# mv /tmp/system_sysctl.conf /etc/sysctl.conf

mv
：是否覆盖
"/etc/sysctl.conf"
？ y

[root@localhost ~]
# cat /etc/sysctl.conf

# System default settings live in /usr/lib/sysctl.d/00-system.conf.

# To override those settings, enter new settings here, or in an /etc/sysctl.d/ .conf file

#

# For more information, see sysctl.conf(5) and sysctl.d(5).

vm.max_map_count=262144

[root@localhost ~]
# sysctl -p

vm.max_map_count = 262144

上面还有一个错误是关于jvm内存分配的问题heap size [268435456] not equal to maximum heap size [2147483648]，需要修改的jvm配置

1	`[seven@localhost bin]$ vim` `/usr/java/elasticsearch/config/jvm` `.options`

将-Xmx2g改成-Xmx256m，也就是heap size [268435456] /1024/1024的值

又有新的错误。。。

Exception in thread "main" java.lang.RuntimeException: bootstrap checks failed

initial heap size [268435456] not equal to maximum heap size [2147483648]; this can cause resize pauses and prevents mlockall from locking the entire heap

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

memory locking requested for elasticsearch process but memory is not locked

at org.elasticsearch.bootstrap.BootstrapCheck.check(BootstrapCheck.java:125)

at org.elasticsearch.bootstrap.BootstrapCheck.check(BootstrapCheck.java:85)

at org.elasticsearch.bootstrap.BootstrapCheck.check(BootstrapCheck.java:65)

at org.elasticsearch.bootstrap.Bootstrap$5.validateNodeBeforeAcceptingRequests(Bootstrap.java:183)

at org.elasticsearch.node.Node.start(Node.java:337)

at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:198)

at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:257)

at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:96)

at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:91)

at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54)

at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:91)

at org.elasticsearch.cli.Command.main(Command.java:53)

at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:70)

at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:63)

Refer to the log for complete error details.

[2016-06-28 14:55:49,770][INFO ][node ] [Goldbug] stopping ...

[2016-06-28 14:55:49,875][INFO ][node ] [Goldbug] stopped

[2016-06-28 14:55:49,875][INFO ][node ] [Goldbug] closing ...

[2016-06-28 14:55:49,887][INFO ][node ] [Goldbug] closed

这个问题折腾了我一下午，最后还是找到了解决方案，同样回到config/elasticsearch.yml文件，找到如下配置，开放discovery.zen.ping.unicast.hosts及discovery.zen.minimum_master_nodes

# --------------------------------- Discovery ----------------------------------

#

# Pass an initial list of hosts to perform discovery when new node is started:

# The default list of hosts is ["127.0.0.1", "[::1]"]

#

discovery.zen.
ping
.unicast.hosts: [
"192.168.0.155"
]

#

# Prevent the "split brain" by configuring the majority of nodes (total number of nodes / 2 + 1):

#

discovery.zen.minimum_master_nodes: 3

#

# For more information, see the documentation at:

#

然后修改max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]这个错误（切换到root操作）

[root@localhost ~]
# cp /etc/security/limits.conf /etc/security/limits.conf.bak

[root@localhost ~]
# cat /etc/security/limits.conf | grep -v "seven" > /tmp/system_limits.conf

[root@localhost ~]
# echo "seven hard nofile 65536" >> /tmp/system_limits.conf

[root@localhost ~]
# echo "seven soft nofile 65536" >> /tmp/system_limits.conf

[root@localhost ~]
# mv /tmp/system_limits.conf /etc/security/limits.conf

修改后重新登录seven用户，使用如下命令查看是否修改成功

1 2	`[seven@localhost ~]$` `ulimit` `-Hn` `65536`

接下来就可以启动elasticsearch了，启动完成使用浏览器访问http://192.168.0.155:9200

{

"name"
:
"Vampire by Night"
,

"cluster_name"
:
"elasticsearch"
,

"version"
: {

"number"
:
"5.0.0-alpha3"
,

"build_hash"
:
"cad959b"
,

"build_date"
:
"2016-05-26T08:25:57.564Z"
,

"build_snapshot"
:
false
,

"lucene_version"
:
"6.0.0"

},

"tagline"
:
"You Know, for Search"

}

详解centos7虚拟机安装elasticsearch5.0.x-安装篇

相关推荐

搜一搜

热门标签

最新推荐

热门文章

觉得文章有用就打赏一下文章作者

非常感谢你的打赏，我们将继续提供更多优质内容，让我们一起创建更加美好的网络世界！

支付宝扫一扫

微信扫一扫