rtmp服务器搭建教程，基于Apache Hadoop的RTMP服务器搭建与优化教程

本教程详细介绍了基于Apache Hadoop的RTMP服务器搭建与优化过程，涵盖从环境准备到配置优化等关键步骤，助您高效构建稳定、高性能的RTMP服务器。

随着互联网的快速发展，视频直播行业日益繁荣，RTMP（Real-Time Messaging Protocol）协议作为一种实时传输流媒体数据的协议，广泛应用于视频直播、点播等领域，本文将详细介绍如何基于Apache Hadoop搭建RTMP服务器，并对服务器进行优化。

搭建环境

1、操作系统：CentOS 7

2、Hadoop版本：Hadoop 3.2.0

3、RTMP服务器：nginx-rtmp-module

4、编译工具：gcc、autoconf、automake等

安装Hadoop

1、下载Hadoop源码：https://hadoop.apache.org/releases.html

2、解压源码到指定目录，如/usr/local/hadoop

3、配置环境变量

export HADOOP_HOME=/usr/local/hadoop
export PATH=$PATH:$HADOOP_HOME/bin
export PATH=$PATH:$HADOOP_HOME/sbin

4、配置Hadoop

- 修改/usr/local/hadoop/etc/hadoop/core-site.xml

<configuration>
    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://localhost:9000</value>
    </property>
    <property>
        <name>hadoop.tmp.dir</name>
        <value>/usr/local/hadoop/tmp</value>
    </property>
</configuration>

- 修改/usr/local/hadoop/etc/hadoop/hdfs-site.xml

<configuration>
    <property>
        <name>dfs.replication</name>
        <value>1</value>
    </property>
</configuration>

- 修改/usr/local/hadoop/etc/hadoop/yarn-site.xml

<configuration>
    <property>
        <name>yarn.nodemanager.aux-services</name>
        <value>mapreduce_shuffle</value>
    </property>
</configuration>

5、格式化NameNode

hadoop namenode -format

6、启动Hadoop集群

start-dfs.sh
start-yarn.sh

安装RTMP服务器

1、下载nginx和nginx-rtmp-module源码

wget http://nginx.org/download/nginx-1.19.1.tar.gz
wget https://github.com/arut/nginx-rtmp-module/archive/master.zip
unzip master.zip

2、编译nginx

cd nginx-1.19.1
./configure --add-module=../nginx-rtmp-module-master
make
make install

3、配置nginx

- 修改/usr/local/nginx/conf/nginx.conf

user  root;
worker_processes  1;
events {
    worker_connections  1024;
}
http {
    include       mime.types;
    default_type  application/octet-stream;
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log  /usr/local/nginx/logs/access.log  main;
    sendfile        on;
    keepalive_timeout  65;
    rtmp {
        server {
            listen 1935;
            chunk_size 4096;
            application live {
                live on;
                record off;
            }
        }
    }
    server {
        listen       80;
        server_name  localhost;
        location / {
            root   html;
            index  index.html index.htm;
        }
    }
}

4、启动nginx

/usr/local/nginx/sbin/nginx

优化RTMP服务器

1、调整nginx配置

- 增加连接数和keepalive_timeout

events {
    worker_connections  4096;
    keepalive_timeout  65;
}

- 增加rtmp配置

rtmp {
    server {
        listen 1935;
        chunk_size 4096;
        max_connections  1024;
        application live {
            live on;
            record off;
        }
    }
}

2、调整Hadoop配置

- 增加mapreduce.map.memory.mb和mapreduce.map.java.opts

export MAPREDUCE_MAP_MEMORY_MB=4096
export MAPREDUCE_MAP_JAVA_OPTS="-Xmx4096m"

- 增加yarn.nodemanager.vmem-pmem-ratio

export YARN_Nodemanager_VMEM_PMEM_RATIO=2.0

3、使用SSD硬盘

将Hadoop的存储路径修改为SSD硬盘，提高读写速度。

本文详细介绍了如何基于Apache Hadoop搭建RTMP服务器，并对服务器进行了优化，在实际应用中，可根据需求调整配置，以满足不同的业务场景，希望本文对您有所帮助。