optimize ttl (#2669)

[ti-chi-bot]

This is an automated cherry-pick of #2669

What problem does this PR solve?

when RowIDAllocator uses 2pc to write with the TTL=3600s. Once it failed and leaves the lock, TiSpark can not resolve the lock until 3600s later for the lock is not expired.

For example, read may push the min_commit_ts, causing the RowIDAllocator 2pc to fail with commit_ts_expired. Then the retry can not success for lock ttl is too long.

What is changed and how it works?

just set ttl to 10s

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation
• Need to update the tidb-ansible repository
• Need to be included in the release note

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• shiyuhang0
• xuanyu66

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[shiyuhang0]

/run-all-tests

[shiyuhang0]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 7d22336