yum install -y ntp
*/2 * * * *        /usr/sbin/ntpdate 182.92.12.11;/sbin/hwclock -w > /dev/null #2>&1
mkdir -p /usr/local/skywalking

#添加es用户
useradd es
passwd es
#设置文件打开句柄数
vim /etc/security/.conf
es soft nofile 65536
es hard nofile 65536
es soft nproc 4096
es hard nproc 4096
#增大虚拟内存
vim /etc/sysctl.conf
vm.max_map_count=262144 
#运用生效
system -p

#安装java环境
yum install -y java
#解压
tar -xf elasticsearch-6.4.0.tar.gz
#授权
chown -R es.es elasticsearch-6.4.0
#切换到es用户
su - es
#后台启动es服务
cd /usr/local/skywalking/elasticsearch-6.4.0/bin/
./elasticsearch -d

tar -xf apache-skywalking-apm-6.5.0.tar.gz
cd apache-skywalking-apm-bin/
#修改数据源
vim config/application.yml

#打开elasticseatch注解
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


##注释h2数据源
#  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}


#后台启动服务
/usr/local/skywalking/apache-skywalking-apm-bin/bin
./startup.sh -d
SkyWalking OAP started successfully!
SkyWalking Web Application started successfully!

  5、基于tomcat部署skywalking agent

#解压tomcat
tar -xf apache-tomcat-8.5.47.tar.gz
#在tomcat的启动参数添加skywalking-agent.jar
/usr/local/skywalking/apache-tomcat-8.5.47/bin/catalina.sh
CATALINA_OPTS="$CATALINA_OPTS -javaagent:/usr/local/skywalking/apache-skywalking-apm-bin/agent/skywalking-agent.jar";export CATALINA_OPTS
#启动tomcat服务
./startup.sh

 6、首先要访问tomcat服务，这时我们打开一个新的无痕窗口（fuck。。。因为缓存的问题我整整花了一天时间卡在上面，当前服务一直不显示。）看到skywalking UI。

 后记：

1、系统时间同步，不然也会导致UI无法显示请求。