*: update titan & rocksdb with #434

[LykxSassinator]

Description

Upgrade tikv-rocksdb tikv/rocksdb#434 to backport facebook/rocksdb#12484 fix.

Summary by CodeRabbit

• Chores
  • Updated underlying database components to newer revisions.
  • Improved the foundation used for storage and data handling.
  • No direct changes to the application’s user-facing functionality.

[coderabbitai]

📝 Walkthrough

Walkthrough

The pull request updates the rocksdb and titan submodule references to new commits. No exported or public declarations change.

Changes

Submodule updates

Layer / File(s)	Summary
Update RocksDB and Titan pointers librocksdb_sys/rocksdb, librocksdb_sys/libtitan_sys/titan	The submodule pointers now reference new commits.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• tikv/rust-rocksdb#850: Updates the same rocksdb and titan submodule references.
• tikv/rust-rocksdb#852: Updates the librocksdb_sys/rocksdb submodule reference.
• tikv/rust-rocksdb#855: Updates the librocksdb_sys/rocksdb submodule reference.

Suggested labels: lgtm, approved

Suggested reviewers: connor1996, v01dstar

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the update to the titan and rocksdb submodules for pull request #434.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@librocksdb_sys/rocksdb`:
- Line 1: Update the librocksdb_sys/rocksdb submodule pointer from
3ddc406f37c00c4002b202c4c52289f8723d1c24 to the current resolved commit
c0999108170b916d583d276957ad73ec3f98f407, ensuring it contains the overflow-safe
output_level_inputs_size + expanded_inputs_size checks.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 9ee3a9bc-68ee-4cda-b2f3-a116a85b82d9

📥 Commits

Reviewing files that changed from the base of the PR and between cdb577c and c099910.

📒 Files selected for processing (2)

• librocksdb_sys/libtitan_sys/titan
• librocksdb_sys/rocksdb

[coderabbitai]

🩺 Stability & Availability | 🟠 Major | ⚡ Quick win

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
set -euo pipefail

submodule="librocksdb_sys/rocksdb"
expected="3ddc406f37c00c4002b202c4c52289f8723d1c24"
source_file="db/compaction/compaction_picker.cc"

test "$(git -C "$submodule" rev-parse HEAD)" = "$expected"

matches="$(
  git -C "$submodule" grep -n -E \
    'output_level_inputs_size[[:space:]]*\+[[:space:]]*expanded_inputs_size' \
    "$expected" -- "$source_file" || true
)"

if [[ -n "$matches" ]]; then
  echo "Overflow-prone compaction limit checks remain:"
  echo "$matches"
  exit 1
fi

echo "No direct overflowing addition found in the selected compaction checks."

Repository: tikv/rust-rocksdb

Length of output: 155

---

Fix the RocksDB submodule pointer before relying on the overflow-safe compaction limit check.

librocksdb_sys/rocksdb is pinned to 3ddc406f37c00c4002b202c4c52289f8723d1c24, but the current submodule commit is c0999108170b916d583d276957ad73ec3f98f407. Re-point the submodule to a known resolved commit that contains the fixed output_level_inputs_size + expanded_inputs_size checks before relying on that behavior.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@librocksdb_sys/rocksdb` at line 1, Update the librocksdb_sys/rocksdb
submodule pointer from 3ddc406f37c00c4002b202c4c52289f8723d1c24 to the current
resolved commit c0999108170b916d583d276957ad73ec3f98f407, ensuring it contains
the overflow-safe output_level_inputs_size + expanded_inputs_size checks.

Source: MCP tools

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-08-06 07:21:31.698152542 +0000 UTC m=+2685477.734247608: ☑️ agreed by overvenus.

[Connor1996]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Connor1996, overvenus

The full list of commands accepted by this bot can be found here.

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• OWNERS [Connor1996,overvenus]

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