oceanbase/seekdb

[Enhancement]: [embed] return meaningful error message to user

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#8 opened on Nov 7, 2025

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help wantedmodule: embedtype: enhancementvibe coding: hard

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Description

Enhancement The error messages returned to user is not clear enough, for example:

>>> seekdb.open()
>>> seekdb.open()
[seekdb] seekdb has opened
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
RuntimeError: open seekdb failed 4005 The object is initialized twice

Maybe we can transfer internal error information to mysql error message. There're some help functions to convert oceanbase error message to user message:

// in file src/share/ob_errno.h
int ob_mysql_errno(const int oberr);
  int ob_mysql_errno_with_check(const int oberr);
  const char *ob_sqlstate(const int oberr);
  const char *ob_strerror(const int oberr);
  const char *ob_str_user_error(const int oberr);

Contributor guide

Research direction
Examine the error handling functions in src/share/ob errno.h and integrate them into the seekdb open method to replace raw internal error codes with user friendly MySQL compatible error messages.
Tech stack
ccpp
Domain
backenddatabase
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
C++
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65