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chendelin1982 committed Mar 30, 2023
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# Oracle Linux

https://linux.oracle.com/ords/f?p=105:21:117077190823888:pg_R_1213672130548773998:NO&pg_min_row=1&pg_max_rows=50&pg_rows_fetched=50
[Oracle Linux](https://www.oracle.com/linux/) 是一个完全免费、开源并可以自由分发的 Linux 发行版。

它与 CentOS 或 Ubuntu 等其他免费 Linux 相比,有几个特别之处:

1. 更兼容 Oracle 的其他产品线,例如:[Why Oracle Database Runs Best on Oracle Linux](https://www.oracle.com/a/ocom/docs/linux/oracle-database-runs-best-on-oracle-linux.pdf)
2. 修复补丁后无需重启(零停机)
3. Oracle Linux 官方提供了比较完善的配套支持:[Oracle Linux 认证应用程序](https://apexapps.oracle.com/pls/apex/f?p=10263:17::::::)[Oracle Linux 硬件兼容商](https://linux.oracle.com/ords/f?p=117:1)[Oracle Linux CVE](https://linux.oracle.com/ords/f?p=130:21:)[Oracle Linux 升级包](https://linux.oracle.com/ords/f?p=105:21:117077190823888:pg_R_1213672130548773998:NO&pg_min_row=1&pg_max_rows=50&pg_rows_fetched=50)[Oracle Linux 勘误](https://oss.oracle.com/mailman/listinfo/el-errata)
4. Oracle 官方提供了可选的[技术支持订阅](https://shop.oracle.com/apex/f?p=dstore:2:0::NO:RIR,RP,2:PROD_HIER_ID:4510272175861805728468)
5. Oracle 在云上提供了一个 Oracle Autonomous Linux 系统,具备自主更新升级的能力(零停机)

## 场景

### 升级

优先使用 Oracle 官方提供的升级工具[Ksplice](https://ksplice.oracle.com/try/trial)进行升级。

## 问题解答

#### Oracle Linux 使用的什么内核?

Oracle 使用的其自己维护的 [Unbreakable Enterprise Kernel](https://github.com/oracle/linux-uek),兼容 RHCK

## 故障排除

#### IO 密集型计算下服务器重启?

问题描述:数据库建索引等 IO 密集型计算负载下或资源耗尽 CPU 100%,服务器出现重启的情况?
解决方案:Oracle 官方建议及时升级补丁



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