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fix: delete slot #2251

Merged
merged 20 commits into from
Jan 19, 2024
Merged

fix: delete slot #2251

merged 20 commits into from
Jan 19, 2024

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Mixficsol
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@Mixficsol Mixficsol commented Dec 28, 2023 •
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背景

在 v3.5.2 版本的 Pika 下，移除了 Sharding 模式，只有经典模式(Classics) 和集群模式(Codis + Pika)，对于 Sharding 模式下残留的 Slot，我们需要进行删除，目前 Pika 下只有 DB 这个概念，一个 Pika 下有多个 DB(可配置)，DB 目录下有五种数据结构类型的文件

代码改动

删除了 pika_slot.h, pika_slot.cc, pika_migrate_thread.h, pika_migrate_thread.cc这四个文件，对于主从复制模块，我们保留了 protobuf 中的 sloid_id 字段，兼容新旧 Pika 中做主从复制时需要用到的 slot_id 值，如下：

src/pika_repl_client.cc

  InnerMessage::Slot* db = db_sync->mutable_slot();
  db->set_db_name(db_name);
  /*
   * Since the slot field is written in protobuffer,
   * slot_id is set to the default value 0 for compatibility
   * with older versions, but slot_id is not used
   */
  db->set_slot_id(0); // 保留字段

我们把 pika_slot.h 和 pika_slot.cc 中的代码迁移至 pika_db.h 和 pika_db.cc 中，并且把 Pika 中的 Sharding 模式代码以及 Rsync 代码进行了删除，让 Pika 的代码更加简洁易懂，同时我们进行了新旧版本 Pika 之间的主从测试(新主旧从，新从旧主)，测试发现没有问题.

fix:#2247

@github-actions github-actions bot added the ☢️ Bug Something isn't working label Dec 28, 2023
@Mixficsol Mixficsol added 3.5.3 🧹 Updates This will not be worked on labels Dec 28, 2023
chejinge
chejinge reviewed Jan 8, 2024
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@Mixficsol Mixficsol added core and removed 🧹 Updates This will not be worked on ☢️ Bug Something isn't working labels Jan 10, 2024
AlexStocks
AlexStocks reviewed Jan 12, 2024
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@github-actions github-actions bot added the ☢️ Bug Something isn't working label Jan 15, 2024
chejinge
chejinge reviewed Jan 17, 2024
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chejinge
chejinge reviewed Jan 17, 2024
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chejinge
chejinge reviewed Jan 18, 2024
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chejinge
chejinge reviewed Jan 18, 2024
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chejinge
chejinge reviewed Jan 19, 2024
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src/pika_command.cc Outdated
const HintKeys& hint_keys) {
pstd::lock::MultiRecordLock record_lock(slot->LockMgr());
void Cmd::InternalProcessCommand(const HintKeys& hint_keys) {
LOG(INFO) << "xaz";
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1

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done

src/pika_command.cc Outdated
if (is_write()) {
record_lock.Lock(current_key());
}

LOG(INFO) << "wxr";
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2

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done

AlexStocks
AlexStocks reviewed Jan 19, 2024
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include/pika_conf.h Outdated
@@ -621,8 +621,6 @@ class PikaConf : public pstd::BaseConf {

private:
pstd::Status InternalGetTargetDB(const std::string& db_name, uint32_t* target);

private:
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这个不要去掉。方法和数据的修饰符各自独立使用。

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done

@AlexStocks AlexStocks merged commit 39fc96e into OpenAtomFoundation:unstable Jan 19, 2024
12 of 13 checks passed
@Mixficsol Mixficsol deleted the Mixficsol-delete_slot branch January 29, 2024 01:50
bigdaronlee163 pushed a commit to bigdaronlee163/pika that referenced this pull request Jun 8, 2024
@Mixficsol
fix: delete slot (OpenAtomFoundation#2251)
52402cd 
* delets kv slot

* delete cmd slot

* delete cache slot

* delete slot command

* delete pika_slot.cc/h

* delete sharding code

* delete slot

* Add DB Shared_ptr in Cmd

---------

Co-authored-by: wuxianrong <wuxianrong@360.cn>
cheniujh pushed a commit to cheniujh/pika that referenced this pull request Sep 24, 2024
@Mixficsol
fix: delete slot (OpenAtomFoundation#2251)
00e5944 
* delets kv slot

* delete cmd slot

* delete cache slot

* delete slot command

* delete pika_slot.cc/h

* delete sharding code

* delete slot

* Add DB Shared_ptr in Cmd

---------

Co-authored-by: wuxianrong <wuxianrong@360.cn>
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@AlexStocks AlexStocks AlexStocks approved these changes

@dingxiaoshuai123 dingxiaoshuai123 dingxiaoshuai123 approved these changes

@chejinge chejinge chejinge approved these changes

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4 participants
@Mixficsol @AlexStocks @dingxiaoshuai123 @chejinge