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<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<author>
<name>magicliang</name>
</author>
<generator uri="https://hexo.io/">Hexo</generator>
<id>https://magicliang.github.io/</id>
<link href="https://magicliang.github.io/" rel="alternate"/>
<link href="https://magicliang.github.io/atom.xml" rel="self"/>
<rights>All rights reserved 2026, magicliang</rights>
<subtitle>一切都是守株待兔，如切如磋，如琢如磨。I am just joking.</subtitle>
<title>守株阁</title>
<updated>2026-08-30T06:54:31.393Z</updated>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="HBase 3.0" scheme="https://magicliang.github.io/tags/HBase-3-0/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-19-HBase-3-0-%E4%B8%8E%E8%AE%BE%E8%AE%A1%E8%BE%B9%E7%95%8C/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-19-HBase-3-0-%E4%B8%8E%E8%AE%BE%E8%AE%A1%E8%BE%B9%E7%95%8C/"/>
<published>2026-08-29T02:19:00.000Z</published>
<summary>
<![CDATA[<p>HBase 3.0.0 是大版本升级，不应被写成 2.6 的小补丁。官方下载页显示 3.0.0 发布于 2026-08-05，同时 2.6.6 发布于 2026-06-09，2.5.15 被标为 stable release。基础机制仍可用 2.6.6 解释，但 3.0]]>
</summary>
<title>深入 HBase 19 - HBase 3.0 与设计边界</title>
<updated>2026-08-30T06:54:31.393Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="Metrics" scheme="https://magicliang.github.io/tags/Metrics/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Compaction" scheme="https://magicliang.github.io/tags/Compaction/"/>
<category term="hbtop" scheme="https://magicliang.github.io/tags/hbtop/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-18-Metrics-hbtop-Compaction-%E4%B8%8E%E6%80%A7%E8%83%BD%E8%B0%83%E4%BC%98/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-18-Metrics-hbtop-Compaction-%E4%B8%8E%E6%80%A7%E8%83%BD%E8%B0%83%E4%BC%98/"/>
<published>2026-08-29T02:18:00.000Z</published>
<summary>
<![CDATA[<p>HBase 性能问题很少只由一个参数造成。热点 Region、StoreFile 过多、compaction backlog、BlockCache 命中率下降、GC 停顿、HDFS locality]]>
</summary>
<title>深入 HBase 18 - Metrics、hbtop、Compaction 与性能调优</title>
<updated>2026-08-30T06:54:31.393Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="安全" scheme="https://magicliang.github.io/tags/%E5%AE%89%E5%85%A8/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-17-Kerberos-RPC-%E4%BF%9D%E6%8A%A4%E4%B8%8E-ACL/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-17-Kerberos-RPC-%E4%BF%9D%E6%8A%A4%E4%B8%8E-ACL/"/>
<published>2026-08-29T02:17:00.000Z</published>
<summary>
<![CDATA[<p>HBase 安全不是一个开关。Kerberos 解决身份认证，RPC protection 解决传输层保护，ACL 解决 HBase 资源授权，HDFS 和 ZooKeeper]]>
</summary>
<title>深入 HBase 17 - Kerberos、RPC 保护与 ACL</title>
<updated>2026-08-30T06:54:31.393Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Coprocessor" scheme="https://magicliang.github.io/tags/Coprocessor/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-16-Coprocessor-Endpoint-%E4%B8%8E-Phoenix-%E8%BE%B9%E7%95%8C/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-16-Coprocessor-Endpoint-%E4%B8%8E-Phoenix-%E8%BE%B9%E7%95%8C/"/>
<published>2026-08-29T02:16:00.000Z</published>
<summary>
<![CDATA[<p>Coprocessor 把一部分逻辑放进 HBase 服务端进程执行。这个能力很强，也很危险：代码和 RegionServer 在同一个 JVM、同一套权限、同一条请求路径里运行。Endpoint 能做局部聚合和自定义 RPC，但它不是分布式 SQL 引擎；Phoenix]]>
</summary>
<title>深入 HBase 16 - Coprocessor、Endpoint 与 Phoenix 边界</title>
<updated>2026-08-30T06:54:31.392Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="LSM-Tree" scheme="https://magicliang.github.io/tags/LSM-Tree/"/>
<category term="HFile" scheme="https://magicliang.github.io/tags/HFile/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-15-BufferedMutator-%E4%B8%8E-Bulk-Load/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-15-BufferedMutator-%E4%B8%8E-Bulk-Load/"/>
<published>2026-08-29T02:15:00.000Z</published>
<summary>
<![CDATA[<p>在线批量写和 Bulk Load 解决的是同一个输入问题：大量记录要进入同一张 HBase 表。二者的成本模型完全不同。<code>BufferedMutator</code> 仍然走 RegionServer 写入协议，写入进入 WAL、MemStore、flush 和]]>
</summary>
<title>深入 HBase 15 - BufferedMutator 与 Bulk Load</title>
<updated>2026-08-30T06:54:31.392Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Scan" scheme="https://magicliang.github.io/tags/Scan/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-14-Get-Scan-Filter-%E4%B8%8E%E5%88%86%E9%A1%B5/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-14-Get-Scan-Filter-%E4%B8%8E%E5%88%86%E9%A1%B5/"/>
<published>2026-08-29T02:14:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>HBase 的读请求不是“把表读出来再过滤”。<code>Get</code> 直接定位单行；<code>Scan</code> 按 row-key range 顺序推进；<code>Filter</code>]]>
</summary>
<title>深入 HBase 14 - Get、Scan、Filter 与分页</title>
<updated>2026-08-30T06:54:31.392Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Snapshot" scheme="https://magicliang.github.io/tags/Snapshot/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-13-Snapshot-Backup-%E4%B8%8E%E6%81%A2%E5%A4%8D/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-13-Snapshot-Backup-%E4%B8%8E%E6%81%A2%E5%A4%8D/"/>
<published>2026-08-29T02:13:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>HBase Snapshot 接近一次元数据操作，因为它主要记录某个时刻表的 Region、StoreFile 引用和相关描述，而不是把整张表的数据复制一遍。HFile 是不可变文件，这让 snapshot]]>
</summary>
<title>深入 HBase 13 - Snapshot、Backup 与恢复</title>
<updated>2026-08-30T06:54:31.392Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Replication" scheme="https://magicliang.github.io/tags/Replication/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-12-%E8%B7%A8%E9%9B%86%E7%BE%A4-Replication/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-12-%E8%B7%A8%E9%9B%86%E7%BE%A4-Replication/"/>
<published>2026-08-29T02:12:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>HBase 跨集群 Replication 复制的是 WAL edit。源集群的 RegionServer 把符合条件的 edit 放入复制队列，由 replication source 推送到 peer]]>
</summary>
<title>深入 HBase 12 - 跨集群 Replication</title>
<updated>2026-08-30T06:54:31.392Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Region" scheme="https://magicliang.github.io/tags/Region/"/>
<category term="WAL" scheme="https://magicliang.github.io/tags/WAL/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-11-RegionServer-%E5%B4%A9%E6%BA%83%E4%B8%8E-WAL-%E6%81%A2%E5%A4%8D/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-11-RegionServer-%E5%B4%A9%E6%BA%83%E4%B8%8E-WAL-%E6%81%A2%E5%A4%8D/"/>
<published>2026-08-29T02:11:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>RegionServer 崩溃以后，HBase 要恢复的是由该 RegionServer 服务的 Region，而不是让 HDFS 自动懂得数据库事务。HDFS 负责保存 WAL 和 HFile；HBase 通过]]>
</summary>
<title>深入 HBase 11 - RegionServer 崩溃与 WAL 恢复</title>
<updated>2026-08-30T06:54:31.392Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="MVCC" scheme="https://magicliang.github.io/tags/MVCC/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-10-%E8%A1%8C%E7%BA%A7%E5%8E%9F%E5%AD%90%E6%80%A7%E4%B8%8E%E4%B8%80%E8%87%B4%E6%80%A7%E8%BE%B9%E7%95%8C/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-10-%E8%A1%8C%E7%BA%A7%E5%8E%9F%E5%AD%90%E6%80%A7%E4%B8%8E%E4%B8%80%E8%87%B4%E6%80%A7%E8%BE%B9%E7%95%8C/"/>
<published>2026-08-29T02:10:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>HBase 的一致性边界从 row key]]>
</summary>
<title>深入 HBase 10 - 行级原子性与一致性边界</title>
<updated>2026-08-30T06:54:31.391Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Region" scheme="https://magicliang.github.io/tags/Region/"/>
<category term="hbase:meta" scheme="https://magicliang.github.io/tags/hbase-meta/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-09-Client-%E8%B7%AF%E7%94%B1%E4%B8%8E%E9%87%8D%E8%AF%95/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-09-Client-%E8%B7%AF%E7%94%B1%E4%B8%8E%E9%87%8D%E8%AF%95/"/>
<published>2026-08-29T02:09:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>本篇回答一个核心问题：Client 如何缓存 <code>hbase:meta</code> 路由，Region 移动后怎样重新定位。</p>
<p>HBase Client 不是把请求发给 Master 再由]]>
</summary>
<title>深入 HBase 09 - Client 路由与重试</title>
<updated>2026-08-30T06:54:31.391Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Region" scheme="https://magicliang.github.io/tags/Region/"/>
<category term="hbase:meta" scheme="https://magicliang.github.io/tags/hbase-meta/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-08-Region-%E7%94%9F%E5%91%BD%E5%91%A8%E6%9C%9F-split-merge-%E4%B8%8E-assignment/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-08-Region-%E7%94%9F%E5%91%BD%E5%91%A8%E6%9C%9F-split-merge-%E4%B8%8E-assignment/"/>
<published>2026-08-29T02:08:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>本篇回答一个核心问题：表如何扩展，Region 如何迁移，状态由谁推进。</p>
<p>Region 是 HBase 表按 row-key range 切分后的服务单位。它决定数据由哪个 RegionServer]]>
</summary>
<title>深入 HBase 08 - Region 生命周期：split、merge 与 assignment</title>
<updated>2026-08-30T06:54:31.391Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="LSM-Tree" scheme="https://magicliang.github.io/tags/LSM-Tree/"/>
<category term="Compaction" scheme="https://magicliang.github.io/tags/Compaction/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-07-Compaction-TTL-%E7%89%88%E6%9C%AC%E4%B8%8E-Delete/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-07-Compaction-TTL-%E7%89%88%E6%9C%AC%E4%B8%8E-Delete/"/>
<published>2026-08-29T02:07:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>本篇回答一个核心问题：不可变 HFile 如何合并，旧值和 tombstone 何时真正消失。</p>
<p>HBase 的写入路径把 mutation 写入 WAL 和 MemStore，flush 后形成新的]]>
</summary>
<title>深入 HBase 07 - Compaction、TTL、版本与 Delete</title>
<updated>2026-08-30T06:54:31.391Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="LSM-Tree" scheme="https://magicliang.github.io/tags/LSM-Tree/"/>
<category term="HFile" scheme="https://magicliang.github.io/tags/HFile/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-06-HFile-%E5%86%85%E9%83%A8%E7%BB%93%E6%9E%84/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-06-HFile-%E5%86%85%E9%83%A8%E7%BB%93%E6%9E%84/"/>
<published>2026-08-29T02:06:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>本篇回答一个核心问题：data block、index、file info、Bloom metadata 如何支持 HBase 在不可变文件里做有序查找。</p>
<p>HFile 是 HBase flush 和]]>
</summary>
<title>深入 HBase 06 - HFile 内部结构</title>
<updated>2026-08-30T06:54:31.391Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="BlockCache" scheme="https://magicliang.github.io/tags/BlockCache/"/>
<category term="HFile" scheme="https://magicliang.github.io/tags/HFile/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-05-%E8%AF%BB%E5%8F%96%E8%B7%AF%E5%BE%84-BlockCache-Bloom-Filter-%E4%B8%8E-HFile-block/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-05-%E8%AF%BB%E5%8F%96%E8%B7%AF%E5%BE%84-BlockCache-Bloom-Filter-%E4%B8%8E-HFile-block/"/>
<published>2026-08-29T02:05:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>本篇回答一个核心问题：<code>Get</code> 如何减少磁盘读取，并把 MemStore、BlockCache 与多个 HFile 的结果合成同一行的可见 Cell。</p>
<p>HBase 读路径不是]]>
</summary>
<title>深入 HBase 05 - 读取路径：BlockCache、Bloom Filter 与 HFile block</title>
<updated>2026-08-30T06:54:31.390Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="WAL" scheme="https://magicliang.github.io/tags/WAL/"/>
<category term="MemStore" scheme="https://magicliang.github.io/tags/MemStore/"/>
<category term="MVCC" scheme="https://magicliang.github.io/tags/MVCC/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-04-%E5%86%99%E5%85%A5%E8%B7%AF%E5%BE%84-WAL-MVCC-MemStore-%E4%B8%8E-flush/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-04-%E5%86%99%E5%85%A5%E8%B7%AF%E5%BE%84-WAL-MVCC-MemStore-%E4%B8%8E-flush/"/>
<published>2026-08-29T02:04:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>一次 <code>Put</code> 从客户端发出后，不会直接变成 HFile。HBase 写路径先把 mutation 交给目标 RegionServer，在 Region]]>
</summary>
<title>深入 HBase 04 - 写入路径：WAL、MVCC、MemStore 与 flush</title>
<updated>2026-08-30T06:54:31.390Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="RowKey" scheme="https://magicliang.github.io/tags/RowKey/"/>
<category term="Schema" scheme="https://magicliang.github.io/tags/Schema/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-03-Schema-%E4%B8%8E-row-key-%E8%AE%BE%E8%AE%A1/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-03-Schema-%E4%B8%8E-row-key-%E8%AE%BE%E8%AE%A1/"/>
<published>2026-08-29T02:03:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>HBase schema 设计首先是 row key 设计，其次才是 column family 和 qualifier 的组织。row key 决定排序、Region 分布、范围 scan]]>
</summary>
<title>深入 HBase 03 - Schema 与 row key 设计</title>
<updated>2026-08-30T06:54:31.390Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="ZooKeeper" scheme="https://magicliang.github.io/tags/ZooKeeper/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Region" scheme="https://magicliang.github.io/tags/Region/"/>
<category term="hbase:meta" scheme="https://magicliang.github.io/tags/hbase-meta/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-02-%E9%9B%86%E7%BE%A4%E6%9E%B6%E6%9E%84-HMaster-RegionServer-ZooKeeper-%E4%B8%8E-hbase-meta/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-02-%E9%9B%86%E7%BE%A4%E6%9E%B6%E6%9E%84-HMaster-RegionServer-ZooKeeper-%E4%B8%8E-hbase-meta/"/>
<published>2026-08-29T02:02:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>HBase 集群架构最容易被写成一张“Master 管所有、ZooKeeper 存所有、RegionServer 干活”的粗图。这个粗图会误导读写路径。普通数据读写的主路径是 Client 定位 Region]]>
</summary>
<title>深入 HBase 02 - 集群架构：HMaster、RegionServer、ZooKeeper 与 hbase:meta</title>
<updated>2026-08-30T06:54:31.390Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="数据模型" scheme="https://magicliang.github.io/tags/%E6%95%B0%E6%8D%AE%E6%A8%A1%E5%9E%8B/"/>
<category term="Column Family" scheme="https://magicliang.github.io/tags/Column-Family/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-01-%E6%95%B0%E6%8D%AE%E6%A8%A1%E5%9E%8B-Cell-Column-Family-%E4%B8%8E%E7%89%88%E6%9C%AC/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-01-%E6%95%B0%E6%8D%AE%E6%A8%A1%E5%9E%8B-Cell-Column-Family-%E4%B8%8E%E7%89%88%E6%9C%AC/"/>
<published>2026-08-29T02:01:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>HBase 的一个值不是由“第几行第几列”定位，而是由 <code>(row, family, qualifier, timestamp)</code> 这组坐标定位。row 是 uninterpreted]]>
</summary>
<title>深入 HBase 01 - 数据模型：Cell、Column Family 与版本</title>
<updated>2026-08-30T06:54:31.390Z</updated>
</entry>
<entry>
<author>
<name>magicliang</name>
</author>
<category term="技术" scheme="https://magicliang.github.io/categories/%E6%8A%80%E6%9C%AF/"/>
<category term="Hadoop" scheme="https://magicliang.github.io/tags/Hadoop/"/>
<category term="HBase" scheme="https://magicliang.github.io/tags/HBase/"/>
<category term="分布式数据库" scheme="https://magicliang.github.io/tags/%E5%88%86%E5%B8%83%E5%BC%8F%E6%95%B0%E6%8D%AE%E5%BA%93/"/>
<category term="Region" scheme="https://magicliang.github.io/tags/Region/"/>
<category term="LSM-Tree" scheme="https://magicliang.github.io/tags/LSM-Tree/"/>
<id>https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-00-%E5%AF%BC%E8%AF%BB-row-key-%E5%86%B3%E5%AE%9A%E6%95%B0%E6%8D%AE%E4%BD%8D%E7%BD%AE/</id>
<link href="https://magicliang.github.io/2026/08/29/%E6%B7%B1%E5%85%A5-HBase-00-%E5%AF%BC%E8%AF%BB-row-key-%E5%86%B3%E5%AE%9A%E6%95%B0%E6%8D%AE%E4%BD%8D%E7%BD%AE/"/>
<published>2026-08-29T02:00:00.000Z</published>
<summary>
<![CDATA[<h2 id="前置问题与边界">前置问题与边界</h2>
<p>HBase 能在 HDFS 上提供随机读写，不是因为 HDFS 获得了原地随机修改能力。HBase 把随机写接在 RegionServer 服务层：mutation 先经过 WAL 和 MemStore，随后]]>
</summary>
<title>深入 HBase 00 - 导读：row key 决定数据位置</title>
<updated>2026-08-30T06:54:31.389Z</updated>
</entry>
</feed>