<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>故障档案 on 老冯云数</title><link>https://vonng.com/tags/%E6%95%85%E9%9A%9C%E6%A1%A3%E6%A1%88/</link><description>Recent content in 故障档案 on 老冯云数</description><generator>Hugo -- gohugo.io</generator><language>zh-cn</language><managingEditor>rh@vonng.com (冯若航)</managingEditor><webMaster>rh@vonng.com (冯若航)</webMaster><copyright>© 2025 冯若航</copyright><lastBuildDate>Wed, 27 Sep 2023 00:00:00 +0000</lastBuildDate><atom:link href="https://vonng.com/tags/%E6%95%85%E9%9A%9C%E6%A1%A3%E6%A1%88/index.xml" rel="self" type="application/rss+xml"/><item><title>如何用 pg_filedump 抢救数据？</title><link>https://vonng.com/pg/pg-filedump/</link><pubDate>Wed, 27 Sep 2023 00:00:00 +0000</pubDate><author>rh@vonng.com (冯若航)</author><guid>https://vonng.com/pg/pg-filedump/</guid><description>备份是DBA的生命线，但如果你的PostgreSQL数据库已经爆炸了又没有备份，该怎么办？也许pg_filedump可以帮到你！</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://vonng.com/pg/pg-filedump/featured.jpg"/></item><item><title>故障档案：时间回溯导致的Patroni故障</title><link>https://vonng.com/pg/time-travel/</link><pubDate>Mon, 22 Feb 2021 00:00:00 +0000</pubDate><author>rh@vonng.com (冯若航)</author><guid>https://vonng.com/pg/time-travel/</guid><description>机器因为故障重启，NTP服务在PG启动后修复了PG的时间，导致Patroni无法启动。</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://vonng.com/pg/time-travel/featured.jpg"/></item><item><title>故障档案：PG安装Extension导致无法连接</title><link>https://vonng.com/pg/extension/</link><pubDate>Thu, 13 Jun 2019 00:00:00 +0000</pubDate><author>rh@vonng.com (冯若航)</author><guid>https://vonng.com/pg/extension/</guid><description>今天遇到一个比较有趣的Case，客户报告说数据库连不上了，发现是扩展导致的。</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://vonng.com/pg/extension/featured.jpg"/></item><item><title>故障档案：pg_dump导致的连接池污染</title><link>https://vonng.com/pg/pg-dump-failure/</link><pubDate>Tue, 11 Dec 2018 00:00:00 +0000</pubDate><author>rh@vonng.com (冯若航)</author><guid>https://vonng.com/pg/pg-dump-failure/</guid><description>有时候，组件之间的相互作用会以微妙的形式表现出来。例如使用pg_dump从连接池中导出数据，就可能产生连接池污染的问题。</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://vonng.com/pg/pg-dump-failure/featured.jpg"/></item><item><title>PostgreSQL数据页面损坏修复</title><link>https://vonng.com/pg/page-corruption/</link><pubDate>Thu, 29 Nov 2018 00:00:00 +0000</pubDate><author>rh@vonng.com (冯若航)</author><guid>https://vonng.com/pg/page-corruption/</guid><description>采用二进制编辑的方式修复PostgreSQL数据页，以及如何让一条主键查询出现两条记录来。</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://vonng.com/pg/page-corruption/featured.jpg"/></item><item><title>故障档案：PostgreSQL事务号回卷</title><link>https://vonng.com/pg/xid-wrap-around/</link><pubDate>Fri, 20 Jul 2018 00:00:00 +0000</pubDate><author>rh@vonng.com (冯若航)</author><guid>https://vonng.com/pg/xid-wrap-around/</guid><description>XID WrapAround也许是PostgreSQL特有的一种故障。</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://vonng.com/pg/xid-wrap-around/featured.jpg"/></item><item><title>故障档案：序列号消耗过快导致整型溢出</title><link>https://vonng.com/pg/sequence-overflow/</link><pubDate>Fri, 20 Jul 2018 00:00:00 +0000</pubDate><author>rh@vonng.com (冯若航)</author><guid>https://vonng.com/pg/sequence-overflow/</guid><description>如果您在表上用了Interger的序列号，最好还是考虑一下可能溢出的情况。</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://vonng.com/pg/sequence-overflow/featured.jpg"/></item><item><title>故障档案：快慢不匀雪崩</title><link>https://vonng.com/pg/download-failure/</link><pubDate>Sun, 08 Apr 2018 00:00:00 +0000</pubDate><author>rh@vonng.com (冯若航)</author><guid>https://vonng.com/pg/download-failure/</guid><description>最近发生了一起匪夷所思的故障，某数据库切走了一半的数据量和负载，结果却因为负载变大被打挂了。</description><media:content xmlns:media="http://search.yahoo.com/mrss/" url="https://vonng.com/pg/download-failure/featured.jpg"/></item></channel></rss>