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add v8.2.0 release notes #17514
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Create release-8.2.0.md
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Change of default value to avoid OOM in stats collection
songrijie 608d6f0
Include the reason why plan cache is not qualified
songrijie 2a59921
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Aggregated result set in the inner side of index join
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add descriptions for two BR features
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Merge remote-tracking branch 'upstream/master' into add-8.2-rn
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add doc links for #53040
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clean up placeholders
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fix the value option of security.redact_info_log
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Merge branch 'add-8.2-rn' of https://github.com/qiancai/docs-cn into …
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draft highlight
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deprecating tidb_enable_async_merge_global_stats
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compatibility changes: add tidb_executor_concurrency and security.red…
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add TiKV improvements and bug fixes
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adjust improvements and bug fixes
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move #53246 as the first note under TiDB improvements
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Update format for consistency
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@@ -232,7 +232,7 @@ TiDB 版本:8.2.0 | |
- 增加 **Compaction Job Size(files)** 指标来呈现单个 compaction job 涉及的 SST 文件数 [#16837](https://github.com/tikv/tikv/issues/16837) @[zhangjinpeng87](https://github.com/zhangjinpeng87) | ||
- 默认开启[提前 apply](/tikv-configuration-file.md#max-apply-unpersisted-log-limit-从-v810-版本开始引入) 特性,开启后,Raft leader 在多数 peer 完成 Raft log 持久化之后即可进行 apply,不再要求 leader 自身完成 Raft log 的持久化,降低少数 TiKV 抖动对写请求延迟的影响 [#16717](https://github.com/tikv/tikv/issues/16717) @[glorv](https://github.com/glorv) | ||
- 在 Raft 日志持久化之前,将 Raft 日志保留在缓存中,以提升 follower 对日志的读取性能 [#16717](https://github.com/tikv/tikv/issues/16717) @[glorv](https://github.com/glorv) | ||
- 增加 Raft dropped messages 事件的可观测性,以便定位写入慢的根本原因 [#17093](https://github.com/tikv/tikv/issues/17093) @[Connor1996](https://github.com/Connor1996) | ||
- 增加 **Raft dropped messages** 事件的可观测性,以便定位写入慢的根本原因 [#17093](https://github.com/tikv/tikv/issues/17093) @[Connor1996](https://github.com/Connor1996) | ||
- 增加对 ingest file 的延迟可观测性,以便排查集群的延迟问题 [#17078](https://github.com/tikv/tikv/issues/17078) @[LykxSassinator](https://github.com/LykxSassinator) | ||
- 利用单独的线程来进行副本清理工作,保证 Raft 读写关键路径的延迟稳定 [#16001](https://github.com/tikv/tikv/issues/16001) @[hbisheng](https://github.com/hbisheng) | ||
- 提升正在进行 apply 的副本数的可观测性 [#17078](https://github.com/tikv/tikv/issues/17078) @[hbisheng](https://github.com/hbisheng) | ||
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@@ -325,7 +325,7 @@ TiDB 版本:8.2.0 | |
- 修复高并发的 Coprocessor 请求可能导致 TiKV OOM 的问题 [#16653](https://github.com/tikv/tikv/issues/16653) @[overvenus](https://github.com/overvenus) | ||
- 修复在线变更 `raftstore.periodic-full-compact-start-time` 配置参数可能会导致 TiKV panic 的问题 [#17066](https://github.com/tikv/tikv/issues/17066) @[SpadeA-Tang](https://github.com/SpadeA-Tang) | ||
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- 修复 `make docker` 和 `make docker_test` 失败的问题 [#17075](https://github.com/tikv/tikv/issues/17075) @[shunki-fujita](https://github.com/shunki-fujita) | ||
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- 修复 gRPC request sources duration 在监控中显示错误的问题 [#17133](https://github.com/tikv/tikv/issues/17133) @[King-Dylan](https://github.com/King-Dylan) | ||
- 修复 **gRPC request sources duration** 在监控中显示错误的问题 [#17133](https://github.com/tikv/tikv/issues/17133) @[King-Dylan](https://github.com/King-Dylan) | ||
- 修复设置 gRPC 压缩方式对 TiKV 发送到 TiDB 的消息不起作用的问题 [#17176](https://github.com/tikv/tikv/issues/17176) @[ekexium](https://github.com/ekexium) | ||
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- (dup): release-7.5.2.md > 错误修复> TiKV - 修复 tikv-ctl 的 `raft region` 命令的输出中未包含 Region 状态信息的问题 [#17037](https://github.com/tikv/tikv/issues/17037) @[glorv](https://github.com/glorv) | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. 这一行格式不对 There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. 是的,这些 dup 标记代表这些 note 是从之前的版本中复用过来的,会在正式发布前统一删除 |
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- 修复 CDC 和 log-backup 没有用 `advance-ts-interval` 配置限制 `check_leader` 的 timeout,导致在某些情况下 TiKV 正常重启时 `resolved_ts` lag 过大的问题 [#17107](https://github.com/tikv/tikv/issues/17107) @[MyonKeminta](https://github.com/MyonKeminta) | ||
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updated in
ee2b49e
(#17836)