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releases: add release note for v8.0.0 #16664

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@hfxsd hfxsd commented Feb 26, 2024

First-time contributors' checklist

What is changed, added or deleted? (Required)

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By default, CHOOSE MASTER ONLY so your changes will be applied to the next TiDB major or minor releases. If your PR involves a product feature behavior change or a compatibility change, CHOOSE THE AFFECTED RELEASE BRANCH(ES) AND MASTER.

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@hfxsd hfxsd self-assigned this Feb 26, 2024
@ti-chi-bot ti-chi-bot bot added contribution This PR is from a community contributor. missing-translation-status This PR does not have translation status info. labels Feb 26, 2024
@hfxsd hfxsd added translation/doing This PR’s assignee is translating this PR. v8.0 This PR/issue applies to TiDB v8.0. and removed contribution This PR is from a community contributor. missing-translation-status This PR does not have translation status info. labels Feb 26, 2024
@ti-chi-bot ti-chi-bot bot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Feb 26, 2024
add desc of Acceleration of Cluster Snapshot Restore Speed ( GA )
add description for Enabling ObjectLock on AWS S3 Log Backup
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更多信息,请参考[用户文档](链接)。
* BR 快照恢复速度最高提升 10 倍 GA [#issue号](链接) @[3pointer](https://github.com/3pointer)

TiDB v8.0.0 版本起,通过对 Region 打散算法进行性能优化和改进,在确保数据充分打散的前提下,快照恢复提速的改进功能正式 GA,并默认启用。这一改进不仅充分利用了每个 TiKV 节点资源并行恢复,还确保了每个 TiKV 节点的数据恢复速度达到机器资源容许的最大值。在实际案例中,单 TiKV 节点的数据恢复速度稳定在 1.2 GB/s,并且能够在 1 小时内完成对 100 TB 数据的恢复。
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Suggested change
TiDB v8.0.0 版本起,通过对 Region 打散算法进行性能优化和改进,在确保数据充分打散的前提下,快照恢复提速的改进功能正式 GA,并默认启用。这一改进不仅充分利用了每个 TiKV 节点资源并行恢复,还确保了每个 TiKV 节点的数据恢复速度达到机器资源容许的最大值。在实际案例中,单 TiKV 节点的数据恢复速度稳定在 1.2 GB/s,并且能够在 1 小时内完成对 100 TB 数据的恢复。
TiDB v8.0.0 版本起,通过对 Region 打散算法进行性能优化和改进在确保数据充分打散的前提下,快照恢复提速的改进功能正式 GA,并默认启用。这一改进不仅充分利用了每个 TiKV 节点资源并行恢复,还确保了每个 TiKV 节点的数据恢复速度达到机器资源容许的最大值。在实际案例中,单 TiKV 节点的数据恢复速度稳定在 1.2 GB/s,并且能够在 1 小时内完成对 100 TB 数据的恢复。
Suggested change
TiDB v8.0.0 版本起,通过对 Region 打散算法进行性能优化和改进,在确保数据充分打散的前提下,快照恢复提速的改进功能正式 GA,并默认启用。这一改进不仅充分利用了每个 TiKV 节点资源并行恢复,还确保了每个 TiKV 节点的数据恢复速度达到机器资源容许的最大值。在实际案例中,单 TiKV 节点的数据恢复速度稳定在 1.2 GB/s,并且能够在 1 小时内完成对 100 TB 数据的恢复。
TiDB v8.0.0 版本起,通过对 Region 打散算法进行性能优化和改进,减少 sst 文件下载和 ingest 相互影响, 提升 ddl 执行效率, 提升统计信息恢复效率等措施后, 在保持数据充分打散的前提下,快照恢复提速的改进功能正式 GA,并默认启用。这一改进充分利用了每个 TiKV 节点资源并行恢复,使得每个 TiKV 节点的数据恢复能充分利用和硬件的磁盘和网络带宽。在实际案例中,单 TiKV 节点的数据恢复速度稳定在 1.2 GB/s,并且能够在 1 小时内完成对 100 TB 数据的恢复。

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TiDB v8.0.0 版本开始,通过对 Region 打散算法进行性能优化和改进,成功减少了 SST 文件下载和 Ingest 进程之间的相互影响,提升了 DDL 执行效率和统计信息恢复效率等。这些措施充分利用了每个 TiKV 节点的资源进行并行恢复,大幅提升了恢复速度。在实际案例中,单个 TiKV 节点的数据恢复速度稳定在 1.2 GB/s,并且能够在 1 小时内完成对 100 TB 数据的恢复。这项改进功能已在 TiDB v8.0.0 版本正式发布并默认启用。

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benmaoer and others added 2 commits February 26, 2024 16:58
add description of PITR Supports Backing Up Data Imported via Lightning Physical Mode
Co-authored-by: BornChanger <97348524+BornChanger@users.noreply.github.com>
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Co-authored-by: xixirangrang <hfxsd@hotmail.com>
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lilin90 and others added 3 commits March 28, 2024 11:29
Co-authored-by: Grace Cai <qqzczy@126.com>
Co-authored-by: Grace Cai <qqzczy@126.com>
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hfxsd commented Mar 28, 2024

/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hfxsd

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@ti-chi-bot ti-chi-bot bot added the approved label Mar 28, 2024
@hfxsd hfxsd added the lgtm label Mar 28, 2024
@ti-chi-bot ti-chi-bot bot merged commit b2d6913 into pingcap:master Mar 28, 2024
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In response to a cherrypick label: new pull request created to branch release-8.0: #16917.

ti-chi-bot pushed a commit to ti-chi-bot/docs-cn that referenced this pull request Mar 28, 2024
github-actions bot pushed a commit to Oreoxmt/pingcap-docsite-preview that referenced this pull request Mar 28, 2024
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