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update BR, PD, and TiFlash
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Oreoxmt committed Apr 9, 2024
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24 changes: 12 additions & 12 deletions releases/release-6.5.9.md
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Expand Up @@ -36,9 +36,9 @@ Quick access: [Quick start](https://docs.pingcap.com/tidb/v6.5/quick-start-with-

+ Backup & Restore (BR) <!--tw@Oreoxmt 3 条-->

- 优化了在滚动重启场景 Log Backup 的备份时间点目标(RPO),现在滚动重启时 Log Backup Task 会有更小的 Checkpoint Lag。 [#15410](https://github.com/tikv/tikv/issues/15410) @[YuJuncen](https://github.com/YuJuncen)
- 优化了 Log Backup 对 Merge 的容忍度,现在在遇到合理的长时间 Merge 的时候 Log Backup Task 不容易进入 Error 状态。[#16554](https://github.com/tikv/tikv/issues/16554) @[YuJuncen](https://github.com/YuJuncen)
- 新增了 Log Backup 在遇到较大的 Checkpoint Lag 的时候自动放弃任务的功能,这样可以防止 Log Backup 意外长时间阻塞 GC 导致集群出现问题。[#50803](https://github.com/pingcap/tidb/issues/50803) @[RidRisR](https://github.com/RidRisR)
- Optimize the Recovery Point Objective (RPO) for log backup during rolling restarts. Now, the checkpoint lag of log backup tasks will be smaller during rolling restarts [#15410](https://github.com/tikv/tikv/issues/15410) @[YuJuncen](https://github.com/YuJuncen)
- Enhance the tolerance of log backup to merge operations. When encountering a reasonable long merge operation, log backup tasks are less likely to enter the error state [#16554](https://github.com/tikv/tikv/issues/16554) @[YuJuncen](https://github.com/YuJuncen)
- Support automatically abandoning log backup tasks when encountering a large checkpoint lag, to avoid prolonged blocking GC and potential cluster issues [#50803](https://github.com/pingcap/tidb/issues/50803) @[RidRisR](https://github.com/RidRisR)
- (dup): release-7.4.0.md > Improvements> Tools> Backup & Restore (BR) - Alleviate the issue that the latency of the PITR log backup progress increases when Region leadership migration occurs [#13638](https://github.com/tikv/tikv/issues/13638) @[YuJuncen](https://github.com/YuJuncen)
- (dup): release-7.5.1.md > Improvements> Tools> Backup & Restore (BR) - Improve the speed of merging SST files during data restore by using a more efficient algorithm [#50613](https://github.com/pingcap/tidb/issues/50613) @[Leavrth](https://github.com/Leavrth)
- (dup): release-7.5.1.md > Improvements> Tools> Backup & Restore (BR) - Support ingesting SST files in batch during data restore [#16267](https://github.com/tikv/tikv/issues/16267) @[3pointer](https://github.com/3pointer)
Expand Down Expand Up @@ -97,26 +97,26 @@ Quick access: [Quick start](https://docs.pingcap.com/tidb/v6.5/quick-start-with-

+ PD <!--tw@Oreoxmt 3 条-->

- 修复扩缩容进度展示不准确的问题 [#7726](https://github.com/tikv/pd/issues/7726) @[CabinfeverB](https://github.com/CabinfeverB)
- 修复调用 `MergeLabels` 函数时存在数据竞争的问题 [#7535](https://github.com/tikv/pd/issues/7535) @[lhy1024](https://github.com/lhy1024)
- Fix the issue that the scaling progress is not correctly displayed [#7726](https://github.com/tikv/pd/issues/7726) @[CabinfeverB](https://github.com/CabinfeverB)
- Fix the issue that data race occurs when the `MergeLabels` function is called [#7535](https://github.com/tikv/pd/issues/7535) @[lhy1024](https://github.com/lhy1024)
- (dup): release-7.5.1.md > Bug fixes> PD - Fix the issue that the PD monitoring item `learner-peer-count` does not synchronize the old value after a leader switch [#7728](https://github.com/tikv/pd/issues/7728) @[CabinfeverB](https://github.com/CabinfeverB)
- 修复执行 SQL `show config` 时错误显示 `trace-region-flow` 的问题 [#7917](https://github.com/tikv/pd/issues/7917) @[rleungx](https://github.com/rleungx)
- Fix the issue that the deprecated configuration item `trace-region-flow` is incorrectly displayed when executing `SHOW CONFIG` [#7917](https://github.com/tikv/pd/issues/7917) @[rleungx](https://github.com/rleungx)

+ TiFlash <!--tw@Oreoxmt 3 条-->

- (dup): release-7.5.1.md > Bug fixes> TiFlash - Fix the issue that TiFlash might panic due to unstable network connections with PD during replica migration [#8323](https://github.com/pingcap/tiflash/issues/8323) @[JaySon-Huang](https://github.com/JaySon-Huang)
- 修复 TiFlash 发生远程读时可能会 crash 的问题 [#8685](https://github.com/pingcap/tiflash/issues/8685) @[solotzg](https://github.com/solotzg)
- Fix the issue that TiFlash might crash due to data race in case of remote reads [#8685](https://github.com/pingcap/tiflash/issues/8685) @[solotzg](https://github.com/solotzg)
- (dup): release-8.0.0.md > Bug fixes> TiFlash - Fix the issue that the `ENUM` column might cause TiFlash to crash during chunk encoding [#8674](https://github.com/pingcap/tiflash/issues/8674) @[yibin87](https://github.com/yibin87)
- 修复在非严格 sql_mode 下创建带异常默认值的列可能导致 TiFlash panic 的问题 [#8803](https://github.com/pingcap/tiflash/issues/8803) @[Lloyd-Pottiger](https://github.com/Lloyd-Pottiger)
- 修复在 `TIME` 类型的列精度修改之后,当 Region 迁移、分裂或者合并后,可能导致查询出错的问题 [#8601](https://github.com/pingcap/tiflash/issues/8601) @[JaySon-Huang](https://github.com/JaySon-Huang)
- Fix the issue that TiFlash might panic when creating a column with abnormal default values under non-strict sql_mode [#8803](https://github.com/pingcap/tiflash/issues/8803) @[Lloyd-Pottiger](https://github.com/Lloyd-Pottiger)
- Fix the issue that if Region migration, split, or merge occurs after the precision of a `TIME` column is modified, queries might fail [#8601](https://github.com/pingcap/tiflash/issues/8601) @[JaySon-Huang](https://github.com/JaySon-Huang)

+ Tools

+ Backup & Restore (BR) <!--tw@Oreoxmt 3 条-->

- 修复了使用 Coarse-grained Split Region 策略 Restore 失败时日志太过繁冗的问题。 [#51572](https://github.com/pingcap/tidb/issues/51572) @[Leavrth](https://github.com/Leavrth)
- 修复了在 Log Backup Task 被暂停之后,移除 Task 不能马上恢复 GC Safepoint 的问题。 [#52082](https://github.com/pingcap/tidb/issues/52082) @[3pointer](https://github.com/3pointer)
- 修复了在联合聚簇索引中包含 AUTO_RANDOM 列的时候,BR 不会备份 AUTO_RANDOM ID 分配进度的问题。[#52255](https://github.com/pingcap/tidb/issues/52255) @[Leavrth](https://github.com/Leavrth)
- Fix the issue that too many logs are printed when a full backup fails [#51572](https://github.com/pingcap/tidb/issues/51572) @[Leavrth](https://github.com/Leavrth)
- Fix the issue that removing a log backup task after it is paused does not immediately restore the GC safepoint [#52082](https://github.com/pingcap/tidb/issues/52082) @[3pointer](https://github.com/3pointer)
- Fix the issue that BR could not back up the `AUTO_RANDOM` ID allocation progress in a union clustered index that contains an `AUTO_RANDOM` column [#52255](https://github.com/pingcap/tidb/issues/52255) @[Leavrth](https://github.com/Leavrth)
- (dup): release-7.5.1.md > Bug fixes> Tools> Backup & Restore (BR) - Fix the issue that stopping a log backup task causes TiDB to crash [#50839](https://github.com/pingcap/tidb/issues/50839) @[YuJuncen](https://github.com/YuJuncen)
- (dup): release-8.0.0.md > Bug fixes> Tools> Backup & Restore (BR) - Fix the issue that TiKV panics when a full backup fails to find a peer in some extreme cases [#16394](https://github.com/tikv/tikv/issues/16394) @[Leavrth](https://github.com/Leavrth)

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