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Full Name
Yunhua Shi
Full Name
ACE Pro
Top Level Details
Job Role
Architect
Company
Beijing HT Horizon Technology
Country
China, People's Republic of
Top Expertise
Exadata
Focus Area
Database
About Yunhua
<p>Shi Yunhua , is graduated from Xi'an Jiaotong University in 2005, then has been working on the third-party company for maintenance service of Oracle database, Now is a member of the Oracle Exadata expert group. Have a wealth of experience in Engineered Systems, like as Exadata 、ODA and so on, has published two books <Exadata Implementation and Maintenance Guide> and <Exadata performance tuning>.<br />WeChat ID: 15153132360</p>
Expertises
Exadata
Oracle Database (EE)
Home Page
https://www.cnblogs.com/missyou-shiyh/
Oracle Community
https://community.oracle.com/tech/developers/profile/Shi%20Yunhua
Links
Latest Contributions
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数据库集群中的bond1接口出现网络丢包
Apr 05, 2026 - Blog post -
Oracle Database (EE)
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EM13告警：Metric evaluation error start - oracle.sysman.emSDK.agent.fetchlet.exception.FetchletException: Permission denied(publickey,password)
Mar 31, 2026 - Blog post -
Enterprise Manager Cloud Control (EMCC)
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Exadata，更换完思科交换机后，与上联交换机无法通信
Mar 29, 2026 - Blog post -
Exadata
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Exadata更换计算节点的硬盘
Mar 20, 2026 - Blog post -
Exadata
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Exalogic虚拟机的网络无法启动，提示Device has different MAC address than expected
Mar 12, 2026 - Blog post -
Exadata
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单个ASM磁盘free空间为0，导致rebalance时提示“ASM磁盘组空间耗尽(ORA-15041)”
Feb 28, 2026 - Blog post -
Oracle Database (EE)
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Exadata的思科交换机，重启后进入到了rommon模式
Feb 23, 2026 - Blog post -
Exadata
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SYSAUX表空间中的SYS.EXP_HEAD$表，占用大量空间
Jan 22, 2026 - Blog post -
Oracle Database (EE)
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PX并行进程产生大量的trace日志，导致文件系统撑爆
Jan 08, 2026 - Blog post -
Oracle Database (EE)
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回收站存在大量对象，导致Insert into...select语句夯住
Dec 31, 2025 - Blog post -
Oracle Database (EE)
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用dg broker执行switchover时，报0RA-01017
Dec 23, 2025 - Blog post -
Oracle Database (EE)
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增量备份恢复的方式修改缺失归档的DataGuard
Dec 02, 2025 - Blog post -
Oracle Database (EE)
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未设置min_free_kbytes参数，导致操作系统进行页缓存回收时，整个操作系统夯住
Nov 19, 2025 - Blog post -
Oracle Database (EE)
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Exadata数据库性能异常，备份进程卡住
Oct 24, 2025 - Blog post -
Exadata
Oracle Database (EE)
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MySQL 5.7版本，搭建一个两主一从的多源主从复制环境
Oct 12, 2025 - Blog post -
MySQL Database
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