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new e3bc232 [docs] OS Installation Requirements (#7830)
e3bc232 is described below
commit e3bc23257869115fdd5a06ac6a7d76f6fbc6b1c0
Author: jiafeng.zhang <zhang...@gmail.com>
AuthorDate: Wed Jan 26 09:11:41 2022 +0800
[docs] OS Installation Requirements (#7830)
---
docs/en/installing/install-deploy.md | 22 ++++++++++++++++++++++
docs/zh-CN/installing/install-deploy.md | 22 ++++++++++++++++++++++
2 files changed, 44 insertions(+)
diff --git a/docs/en/installing/install-deploy.md
b/docs/en/installing/install-deploy.md
index ff0a5b5..4bf683c 100644
--- a/docs/en/installing/install-deploy.md
+++ b/docs/en/installing/install-deploy.md
@@ -50,6 +50,28 @@ Doris, as an open source MPP architecture OLAP database, can
run on most mainstr
| Java | 1.8 and above |
| GCC | 4.8.2 and above |
+#### OS Installation Requirements
+
+##### Set the maximum number of open file handles in the system
+
+````
+vi /etc/security/limits.conf
+*soft nofile 65536
+*hard nofile 65536
+````
+
+##### Clock synchronization
+
+The metadata of Doris requires the time precision to be less than 5000ms, so
all machines in the cluster need to synchronize the clocks to avoid service
exceptions caused by inconsistencies in metadata caused by clock problems.
+
+##### Close the swap partition (swap)
+
+The Linux swap partition will cause serious performance problems for Doris,
you need to disable the swap partition before installation
+
+##### Linux file system
+
+Here we recommend using the ext4 file system. When installing the operating
system, please select the ext4 file system.
+
#### Development Test Environment
| Module | CPU | Memory | Disk | Network | Instance Number|
diff --git a/docs/zh-CN/installing/install-deploy.md
b/docs/zh-CN/installing/install-deploy.md
index 78ac756..07a9c13 100644
--- a/docs/zh-CN/installing/install-deploy.md
+++ b/docs/zh-CN/installing/install-deploy.md
@@ -49,6 +49,28 @@ Doris 作为一款开源的 MPP 架构 OLAP 数据库，能够运行在绝大多
| Java | 1.8 及以上 |
| GCC | 4.8.2 及以上 |
+#### 操作系统安装要求
+
+##### 设置系统最大打开文件句柄数
+
+```
+vi /etc/security/limits.conf
+* soft nofile 65536
+* hard nofile 65536
+```
+
+##### 时钟同步
+
+Doris 的元数据要求时间精度要小于5000ms，所以所有集群所有机器要进行时钟同步，避免因为时钟问题引发的元数据不一致导致服务出现异常。
+
+##### 关闭交换分区（swap）
+
+Linux交换分区会给Doris带来很严重的性能问题，需要在安装之前禁用交换分区
+
+##### Liunx文件系统
+
+这里我们推荐使用ext4文件系统，在安装操作系统的时候，请选择ext4文件系统。
+
#### 开发测试环境
| 模块 | CPU | 内存 | 磁盘 | 网络 | 实例数量 |
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