feat: Pd init #47
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feat: Pd init #47
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feat: Multi raft
WalkthroughThe changes encompass the integration of Protocol Buffers into the build configuration of the Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant PlacementDriverServer
participant Database
participant Raft
Client->>PlacementDriverServer: Add Store Request
PlacementDriverServer->>Database: Check Store Existence
alt Store Exists
PlacementDriverServer->>Raft: Add Node
Raft-->>PlacementDriverServer: Success
else Store Does Not Exist
PlacementDriverServer-->>Client: Error
end
PlacementDriverServer-->>Client: Store Added Successfully
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hotjump
reviewed
Sep 28, 2024
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| message GetClusterInfoResponse { | ||
| bool success = 1; |
There was a problem hiding this comment.
如果是使用status可能可以描述更多失败的场景。
hotjump
reviewed
Sep 28, 2024
| : fake_(fake), pd_group_id_(std::move(pd_group_id)), initial_pd_server_list_(std::move(initial_pd_server_list)) {} | ||
| ~PlacementDriverOptions() = default; | ||
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| bool GetFake(bool fake) { return fake_; } |
| return {false, -1}; | ||
| } | ||
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| max_region_id += 1; |
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1、进展：完成了 multi-raft 的改造，并将 PD 模块搭建起来了，目前已经完成了 store 上线的注册功能。
2、后续安排：
（1）添加测试，目前只是简单验证了正确性。
（2）添加根据 key 的范围选择 region 的逻辑，region 对 client 透明。
（3）把 join 命令进一步完善，添加获取 region id 的逻辑。
3、测试：
（1）配置信息设置：
pd 节点：默认端口为 7777，pikiwidb.conf 中 as-pd 设置为 yes。
普通节点：默认端口为 8888，pikiwidb.conf 中 as-pd 设置为 no。
这里不管是 pd 节点还是普通节点都需要设置 pd 的成员配置信息：
如果想要构建 pd 三节点的话，可以自己适当的增加成员配置。
（2）启动 pd 节点：
启动 pd 节点，默认会自己创建 region 0（即 db 0），用来存储集群的元数据。
（3）启动普通节点：
（4）查询注册信息：
4、设计文档：
https://m0jlcucyhxm.feishu.cn/docx/F2qMd0eRUotvrdxAHBdcpx5yn5Q
Summary by CodeRabbit
New Features
PlacementDriverServicewith RPC methods for managing clusters, including adding/removing stores and retrieving cluster information.PlacementDriverServerto manage placement driver operations.Configuration Changes
Bug Fixes
Documentation