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doc[mongodb]: update mongodb doc
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@@ -33,8 +33,8 @@ rm -rf JDK的安装路径
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把JDK下载到/usr/local目录下,在/usr/local下新建文件夹java
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```
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- tar -zxvf openjdk-11+28_linux-x64_bin.tar.gz -C /usr/local
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- rename jdk-11 java jdk-11
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- tar -zxvf openjdk-17.0.2_linux-x64_bin.tar.gz -C /usr/local
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- mv jdk-17.0.2 java
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- vim /etc/profile
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@@ -56,17 +56,8 @@ export JAVA_HOME JRE_HOME PATH
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# 三、Linux内核参数设置
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- 文件句柄设置
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- vim /etc/sysctl.conf,然后执行sysctl -p使参数生效,永久生效
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```
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root身份编辑 vim /etc/security/limits.conf, * 表示所有用户
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root soft nofile 1000000
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root hard nofile 1000000
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* soft nofile 1000000
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* hard nofile 1000000
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vim /etc/sysctl.conf,然后执行sysctl -p使参数生效,永久生效
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# ******************* SYN状态的内核参数调优 *******************
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# 新建连接如果无响应,内核要发送多少次SYN连接才放弃,默认值为5
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