Comments (2)
caijieming-ng
commented on May 27, 2024
另外一写多读 情况下，读者在切主后 能否不通过reopen db 能升级成写者，解决计算层能热备的场景
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luckywhu
commented on May 27, 2024
- 由于X-Engine的一写多读形态是在PolarDB MySQL的系统架构上设计和开发的，其依赖较多PolarDB MySQL的功能组件，而PolarDB MySQL代码并没有开源，所以X-Engine的一写多读形态近期没有开源计划。
- PolarDB MySQL （X-Engine引擎）的一写多读形态中，切主过程中RO提升为RW的确是通过reopen db在进程不用重启的前提下提升为写者的。其实现原理可以参考解读文章《如何基于LSM-tree架构实现一写多读》
- X-Engine 分离到OSS功能目前处于研发测试阶段，我们会适时发布出来，但开源计划暂时还未决定。其实现原理可以参考文章：《PolarDB X-Engine 如何构建1/10成本的事务存储引擎》
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Related Issues (20)
- [seek help]failed in compiation on intel x86_64 + openSUSE Leap 42.3 HOT 1
- [suggestion] the source installation guild of galaxyengine should not be placed in another project
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- xengine core dump with simple put
- x-engine run db_bench coredump HOT 1
- ARM 服务器编译 DN 失败
- Is it necessary to configure large write buffers for good performance of X-Engine? HOT 4
- I encountered some questions when compiling project on Ubuntu 20.04 HOT 2
- Would you please offer RPM spec file and image build script for galaxykube？
- compiling failed according to development doc HOT 4
- compile the souce code according the quik start, it report compile error fatal error: easy_log.h: No such file or directory HOT 1
- compile error of No rule to make target `extra/IS/consensus/bu/libaliconsensus.a
- dn节点的engine容器起不来，卡死在running状态 HOT 1
- 无法启动 HOT 1
- 文档？ HOT 2
- Why use a fixed length extent to manage disk space？ HOT 1
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