Centos安装Skywalking—HI技术分享

Centos安装Skywalking

xiaohai 2021-06-11 12:21:43 共1244人围观标签： APM

简介Centos安装Skywalking

本节主要介绍在Centos系统中安装Skywalking

注意：Skywalking默认使用H2内存中进行数据存储，我们可以替换存储源为ElasticSearch保证器查询的高效及可用性。

安装ES是非常的简单，但是在安全之前一定要先搭建好Java环境，这里我将省略掉这步。下面将介绍单个ES的安装：

1、ES官网下载页面
https://www.elastic.co/cn/downloads/elasticsearch

2、下载自己对应系统平台的ES包，这里我使用的Centos系统，所以下载Linux包

[root@localhost ~]# wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.5.0.tar.gz

3、解压到指定目录

[root@localhost ~]# tar -zxf elasticsearch-6.5.0-linux-x86_64.tar.gz -C /home/
[root@localhost ~]# cd /home/elasticsearch-6.5.0/
[root@localhost elasticsearch-6.5.0]# ll
total 436
drwxr-xr-x  3 root root   4096 Jun  7 17:33 bin
drwxr-xr-x  2 root root    148 Nov 10  2018 config
drwxr-xr-x  3 root root   4096 Nov 10  2018 lib
-rw-r--r--  1 root root  13675 Nov 10  2018 LICENSE.txt
drwxr-xr-x  2 root root      6 Nov 10  2018 logs
drwxr-xr-x 28 root root   4096 Nov 10  2018 modules
-rw-r--r--  1 root root 403816 Nov 10  2018 NOTICE.txt
drwxr-xr-x  2 root root      6 Nov 10  2018 plugins
-rw-r--r--  1 root root   8519 Nov 10  2018 README.textile

4、运行ES

[root@localhost elasticsearch-6.5.0]# ./bin/elasticsearch
[2020-06-07T17:34:17,779][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [unknown] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:140) ~[elasticsearch-6.5.0.jar:6.5.0]
    at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:127) ~[elasticsearch-6.5.0.jar:6.5.0]
    at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.5.0.jar:6.5.0]
    at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.5.0.jar:6.5.0]
    at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.5.0.jar:6.5.0]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:93) ~[elasticsearch-6.5.0.jar:6.5.0]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:86) ~[elasticsearch-6.5.0.jar:6.5.0]
Caused by: java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:103) ~[elasticsearch-6.5.0.jar:6.5.0]
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:170) ~[elasticsearch-6.5.0.jar:6.5.0]
    at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) ~[elasticsearch-6.5.0.jar:6.5.0]
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:136) ~[elasticsearch-6.5.0.jar:6.5.0]
    ... 6 more

这里报错，ES不能使用root用户执行，主要出于系统安全考虑。那么要解决遇到的问题，我们需要给ES单独创建用户和用户组来进行运行。

5、创建ES的用户和组

[root@localhost]# groupadd elsearch
[root@localhost]# useradd elsearch -g elsearch -p elasticsearch

6、更改ES的文件夹中所有文件的所属用户和组为上面创建的用户和组

[root@localhost home]# chown -R elsearch:elsearch /home/elasticsearch-6.5.0

7、切换到上面创建的用户去，再启动ES

[root@localhost home]# su elsearch
[elsearch@localhost home]$ cd elasticsearch-6.5.0/
[elsearch@localhost elasticsearch-6.5.0]$ ./bin/elasticsearch

8、测试

[root@localhost ~]# curl http://localhost:9200/ 
{
  "name" : "muQvCUw",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "trfjuqJzSyK_5lrdSTriAw",
  "version" : {
    "number" : "6.5.0",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "816e6f6",
    "build_date" : "2018-11-09T18:58:36.352602Z",
    "build_snapshot" : false,
    "lucene_version" : "7.5.0",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

[root@localhost ~]# netstat -ntlp #9200 9300都是ES的默认端口
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      4669/master         
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      3671/sshd           
tcp6       0      0 ::1:25                  :::*                    LISTEN      4669/master         
tcp6       0      0 127.0.0.1:9200          :::*                    LISTEN      5137/java           
tcp6       0      0 ::1:9200                :::*                    LISTEN      5137/java           
tcp6       0      0 127.0.0.1:9300          :::*                    LISTEN      5137/java           
tcp6       0      0 ::1:9300                :::*                    LISTEN      5137/java           
tcp6       0      0 :::22                   :::*                    LISTEN      3671/sshd

9、后台运行ES进程

[elsearch@localhost elasticsearch-6.5.0]$ ./bin/elasticsearch -d

10、必须保证防火墙开启的情况下，才需要添加ES端口，否则不能访问9200端口

#添加开发端口9200
[elsearch@localhost elasticsearch-6.5.0]$ firewall-cmd --zone=public --add-port=9200/tcp --permanent
#重启防火墙
[elsearch@localhost elasticsearch-6.5.0]$ firewall-cmd --reload

11、开机启动一：init.d下配置
在/etc/init.d下创建es文件，并将下面的内容复制进去，一定要注意这里的名字，千万不要命名成elasticsearch，主要脚本中就是通过该名称来管理进程的。脚本的格式一定要注意，最好复制下面的即可，否则会出现某些地方出现格式不对而运行出现问题。

#!/bin/sh
#chkconfig: 2345 80 05
#description: es

export JAVA_HOME=/jdk1.8.0_181 #需要修改成自己JDK路径(一定修改)
export JAVA_BIN=$JAVA_HOME/bin
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export ES_HOME=/home/elasticsearch-6.5.0  #需要修改成自己ES路径(一定修改)
export ES_USER_NAME=elsearch #对应的ES的用户账号(一定修改)

case $1 in
start)
    #下面的"<<!"是切换用户后，待执行的命令，执行完后使用"!"来进行结束
    su $ES_USER_NAME<<!
    cd $ES_HOME
    ./bin/elasticsearch -d
    exit
!
    #上面的"!"是以上面的对应起来，并且顶格放置，这是语法
    echo "elasticsearch start" #将该行替换成你自己的服务启动命令
    ;;
stop)
    es_pid=`ps aux|grep elasticsearch | grep -v 'grep elasticsearch' | awk '{print $2}'`   #注意这个号"`"
    kill -9 $es_pid
    echo "elasticsearch stop" #将该行替换成你自己的服务启动命令
    ;;
restart)
    es_pid=`ps aux|grep elasticsearch | grep -v 'grep elasticsearch' | awk '{print $2}'`  #"grep -v"过滤掉本身的执行命令，获取准确的pid
    kill -9 $es_pid
    echo "elasticsearch stop" #将该行替换成你自己的服务启动命令
    su $ES_USER_NAME<<!
    cd $ES_HOME
    ./bin/elasticsearch -d
!
    echo "elasticsearch start" #将该行替换成你自己的服务启动命令
    ;;
*)
    echo "start|stop|restart" #将该行替换成你自己的服务启动命令
    ;;
esac

10.2、设置可执行
```
[root@localhost init.d]# chmod +x es
```

10.3、加到开机启动

[root@localhost init.d]# chkconfig -add es

10.4、可以使用如下命令启动、停止和重启

[root@localhost init.d]# service es start
elasticsearch start
[root@localhost init.d]# service es stop
elasticsearch stop
[root@localhost init.d]# service es start
elasticsearch start
[root@localhost init.d]# service es restart

12、开机启动二：/etc/systemd/system下配置

12.1、在/etc/systemd/system目录下新建一个elasticsearch.service，将下面的内容复制进去：

[Unit]
Description=elasticsearch
[Service]
User=elsearch #es用户
ExecStart=/home/elasticsearch-6.5.0/bin/elasticsearch #es命令路径
[Install]
WantedBy=multi-user.target

12.2、添加到开机启动

[root@localhost system]# systemctl enable elasticsearch.service 
Created symlink from /etc/systemd/system/multi-user.target.wants/elasticsearch.service to /etc/systemd/system/elasticsearch.service.

12.3、启动、停止和重启

[root@localhost system]# systemctl start elasticsearch.service
[root@localhost system]# systemctl stop elasticsearch.service
[root@localhost system]# systemctl restart elasticsearch.service
[root@localhost ~]# systemctl status elasticsearch.service
● elasticsearch.service - elasticsearch
 Loaded: loaded (/etc/systemd/system/elasticsearch.service; enabled; vendor preset: disabled)
 Active: active (running) since Mon 2019-04-29 13:58:15 EDT; 1min 11s ago
Main PID: 3422 (java)
 CGroup: /system.slice/elasticsearch.service
         ├─3422 /home/elasticsearch-6.5.0/jdk/bin/java -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -Des.networkaddres...
         └─4796 /home/elasticsearch-6.5.0/modules/x-pack-ml/platform/linux-x86_64/bin/controller
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,943][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] loaded module [x-pack-graph]
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,943][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] loaded module [x-pack-ilm]
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,944][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] loaded module [x-pack-logstash]
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,944][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] loaded module [x-pack-ml]
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,944][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] loaded module [x-pack-monitoring]
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,945][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] loaded module [x-pack-rollup]
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,945][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] loaded module [x-pack-security]
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,945][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] loaded module [x-pack-sql]
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,946][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] loaded module [x-pack-watcher]
Apr 29 13:59:14 localhost.localdomain elasticsearch[3422]: [2019-04-29T13:59:14,946][INFO ][o.e.p.PluginsService     ] [localhost.localdomain] no plugins loaded

以上整个安装ES过程完成。下面介绍如何安装SkyWalking

安装Skywalking分为两个步骤：

安装Backend后端服务
安装UI

在root用户下操作
1、下载

[root@localhost ~]# wget https://www.apache.org/dyn/closer.cgi/skywalking/6.5.0/apache-skywalking-apm-6.5.0.tar.gz

2、解压

[root@localhost ~]# tar -zxf apache-skywalking-apm-6.5.0.tar.gz -C /home/

[root@localhost ~]# cd /home/apache-skywalking-apm-bin/

[root@localhost home]# cd apache-skywalking-apm-bin/
[root@localhost apache-skywalking-apm-bin]# ll
total 88
drwxrwxr-x 8 1001 1002   143 Nov 12  2019 agent
drwxr-xr-x 2 root root   241 Jun  7 15:48 bin
drwxr-xr-x 2 root root   186 Jun  7 15:48 config
-rwxrwxr-x 1 1001 1002 28903 Nov 12  2019 LICENSE
drwxrwxr-x 3 1001 1002  4096 Jun  7 15:48 licenses
-rwxrwxr-x 1 1001 1002 31850 Nov 12  2019 NOTICE
drwxrwxr-x 2 1001 1002 12288 Nov 12  2019 oap-libs
-rw-rw-r-- 1 1001 1002  1978 Nov 12  2019 README.txt
drwxr-xr-x 2 root root    53 Jun  7 15:48 webapp

3、配置后端服务数据源
前面已经安装了ES作为数据源，所以就需要开启ES，关闭H2.

[root@localhost apache-skywalking-apm-bin]# vim config/application.yml #修改storage部分，打开es，注释h2
...
storage:
  elasticsearch:
    nameSpace: ${SW_NAMESPACE:""}
    clusterNodes: ${SW_STORAGE_ES_CLUSTER_NODES:localhost:9200}
    protocol: ${SW_STORAGE_ES_HTTP_PROTOCOL:"http"}
    trustStorePath: ${SW_SW_STORAGE_ES_SSL_JKS_PATH:"../es_keystore.jks"}
    trustStorePass: ${SW_SW_STORAGE_ES_SSL_JKS_PASS:""}
    user: ${SW_ES_USER:""}
    password: ${SW_ES_PASSWORD:""}
    indexShardsNumber: ${SW_STORAGE_ES_INDEX_SHARDS_NUMBER:2}
    indexReplicasNumber: ${SW_STORAGE_ES_INDEX_REPLICAS_NUMBER:0}
#    # Those data TTL settings will override the same settings in core module.
    recordDataTTL: ${SW_STORAGE_ES_RECORD_DATA_TTL:7} # Unit is day
    otherMetricsDataTTL: ${SW_STORAGE_ES_OTHER_METRIC_DATA_TTL:45} # Unit is day
    monthMetricsDataTTL: ${SW_STORAGE_ES_MONTH_METRIC_DATA_TTL:18} # Unit is month
#    # Batch process setting, refer to https://www.elastic.co/guide/en/elasticsearch/client/java-api/5.5/java-docs-bulk-processor.html
    bulkActions: ${SW_STORAGE_ES_BULK_ACTIONS:1000} # Execute the bulk every 1000 requests
    flushInterval: ${SW_STORAGE_ES_FLUSH_INTERVAL:10} # flush the bulk every 10 seconds whatever the number of requests
    concurrentRequests: ${SW_STORAGE_ES_CONCURRENT_REQUESTS:2} # the number of concurrent requests
    resultWindowMaxSize: ${SW_STORAGE_ES_QUERY_MAX_WINDOW_SIZE:10000}
    metadataQueryMaxSize: ${SW_STORAGE_ES_QUERY_MAX_SIZE:5000}
    segmentQueryMaxSize: ${SW_STORAGE_ES_QUERY_SEGMENT_SIZE:200}
#  h2:
#    driver: ${SW_STORAGE_H2_DRIVER:org.h2.jdbcx.JdbcDataSource}
#    url: ${SW_STORAGE_H2_URL:jdbc:h2:mem:skywalking-oap-db}
#    user: ${SW_STORAGE_H2_USER:sa}
#    metadataQueryMaxSize: ${SW_STORAGE_H2_QUERY_MAX_SIZE:5000}
...

4、修改webapp的配置

[root@localhost apache-skywalking-apm-bin]# vim webapp/webapp.yml #这里修改下服务的端口，防止冲突，改成9010
...
server:
  port: 9010
...

5、启动服务
查看bin下面的文件

[root@localhost apache-skywalking-apm-bin]# ll bin/
total 40
-rwxr-xr-x 1 1001 1002 1352 Nov 12  2019 oapService.bat
-rwxr-xr-x 1 1001 1002 1364 Nov 12  2019 oapServiceInit.bat
-rwxr-xr-x 1 1001 1002 1597 Nov 12  2019 oapServiceInit.sh
-rwxr-xr-x 1 1001 1002 1367 Nov 12  2019 oapServiceNoInit.bat
-rwxr-xr-x 1 1001 1002 1616 Nov 12  2019 oapServiceNoInit.sh
-rwxr-xr-x 1 1001 1002 1599 Nov 12  2019 oapService.sh #这个启动后端服务
-rwxr-xr-x 1 1001 1002  941 Nov 12  2019 startup.bat
-rwxr-xr-x 1 1001 1002  934 Nov 12  2019 startup.sh #这个是对两个服务一起进行启动
-rwxr-xr-x 1 1001 1002 1426 Nov 12  2019 webappService.bat
-rwxr-xr-x 1 1001 1002 1630 Nov 12  2019 webappService.sh #这个是启动webapp

启动：

[root@localhost apache-skywalking-apm-bin]# ./bin/startup.sh 
SkyWalking OAP started successfully!
SkyWalking Web Application started successfully!

6、查看端口

[root@localhost ~]# netstat -ntlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      1275/master         
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1114/sshd           
tcp6       0      0 :::11800                :::*                    LISTEN      15821/java          
tcp6       0      0 ::1:25                  :::*                    LISTEN      1275/master         
tcp6       0      0 :::12800                :::*                    LISTEN      15821/java          
tcp6       0      0 127.0.0.1:9200          :::*                    LISTEN      15679/java          
tcp6       0      0 ::1:9200                :::*                    LISTEN      15679/java          
tcp6       0      0 :::8080                 :::*                    LISTEN      15336/java          
tcp6       0      0 :::9010                 :::*                    LISTEN      15960/java          
tcp6       0      0 127.0.0.1:9300          :::*                    LISTEN      15679/java          
tcp6       0      0 ::1:9300                :::*                    LISTEN      15679/java          
tcp6       0      0 :::22                   :::*                    LISTEN      1114/sshd

如果存在11800、12800、9010端口，就启动成功。

7、进行访问

http://192.168.100.111:9010/

如图所示：

图片alt

到此，我们的安装部分就算完成。

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