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remove the benchmark files for earlier releases #20462

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@qiancai qiancai commented Mar 5, 2025

First-time contributors' checklist

What is changed, added or deleted? (Required)

  • Remove the benchmark files for earlier releases. Users can still get these benchmark docs from the corresponding TiDB release on the TiDB documentation website.
  • Remove the instructions about "raftstore.sync-log" as this option had been removed since v5.0 according to v5.0 release notes.

Which TiDB version(s) do your changes apply to? (Required)

Tips for choosing the affected version(s):

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.

For details, see tips for choosing the affected versions.

  • master (the latest development version)
  • v9.0 (TiDB 9.0 versions)
  • v8.5 (TiDB 8.5 versions)
  • v8.4 (TiDB 8.4 versions)
  • v8.3 (TiDB 8.3 versions)
  • v8.1 (TiDB 8.1 versions)
  • v7.5 (TiDB 7.5 versions)
  • v7.1 (TiDB 7.1 versions)
  • v6.5 (TiDB 6.5 versions)
  • v6.1 (TiDB 6.1 versions)
  • v5.4 (TiDB 5.4 versions)

What is the related PR or file link(s)?

Do your changes match any of the following descriptions?

  • Delete files
  • Change aliases
  • Need modification after applied to another branch
  • Might cause conflicts after applied to another branch

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ti-chi-bot bot commented Mar 5, 2025

[APPROVALNOTIFIER] This PR is NOT APPROVED

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@ti-chi-bot ti-chi-bot bot added missing-translation-status This PR does not have translation status info. size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. labels Mar 5, 2025
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@glorv glorv left a comment

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LGTM for the parts related to tikv's configuration sync-log.

@@ -211,7 +211,7 @@ To learn more about the inconsistency error and how to bypass the check, see [Tr

### 4.1 TiKV panics and fails to start

- 4.1.1 `sync-log = false`. The `unexpected raft log index: last_index X < applied_index Y` error is returned after the machine is powered off.
- 4.1.1 The `unexpected raft log index: last_index X < applied_index Y` error is returned after the machine is powered off.
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I think we better remove this 4.1.1 section as it can only occurs when sync-log is set to false.

@qiancai qiancai added the needs-cherry-pick-release-8.5 Should cherry pick this PR to release-8.5 branch. label Mar 5, 2025
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@lilin90 lilin90 left a comment

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/lgtm

@ti-chi-bot ti-chi-bot bot added the needs-1-more-lgtm Indicates a PR needs 1 more LGTM. label Mar 5, 2025
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ti-chi-bot bot commented Mar 5, 2025

[LGTM Timeline notifier]

Timeline:

  • 2025-03-05 08:00:46.417930652 +0000 UTC m=+428559.546850399: ☑️ agreed by lilin90.


### Can Raft + multiple replicas in the TiKV architecture achieve absolute data safety? Is it necessary to apply the most strict mode (`sync-log = true`) to a standalone storage?
Because theoretically two nodes might crash, data written to TiKV is flushed to the raft-log by default starting from v5.0. If a crash occurs, you can recover the KV data using the raft-log.
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@glorv glorv Mar 5, 2025

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Suggested change
Because theoretically two nodes might crash, data written to TiKV is flushed to the raft-log by default starting from v5.0. If a crash occurs, you can recover the KV data using the raft-log.
Because theoretically two nodes might crash, data written to TiKV is flushed to the raft-log by default starting from v5.0. If a crash occurs, the KV data can recover from persisted raft-log automatically.

@qiancai qiancai force-pushed the remove_outdated_files branch from 462c1af to 3089a15 Compare March 5, 2025 09:23
@qiancai qiancai force-pushed the remove_outdated_files branch from 3089a15 to 518e16d Compare March 5, 2025 09:36
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3 participants