Temporary Database Connectivity Issue (9:26-9:30 JST)

Update timeline

1. resolved Dec 14, 2025, 12:37 AM UTC

   We are reporting a temporary connectivity issue that affected a segment of our database. Duration: The incident occurred from 9:26 AM to 9:30 AM JST on December 14, 2025. The issue has been resolved, and all services are fully operational again. We are currently investigating the root cause and developing preventative measures to avoid recurrence. We will provide an update once our investigation is complete.

2. postmortem Dec 14, 2025, 01:47 AM UTC

   We are providing an update following the temporary connectivity issue that occurred on December 14, 2025, from 9:26 AM to 9:30 AM JST. The service has been fully restored. **Root Cause Identified:** Upon investigation, we determined that there were no issues with the database itself. The problem was specifically identified as a failure in the **connection path** to the database. **Future Countermeasures:** As a preventative measure, we will be implementing **additional redundancy** across our infrastructure to enhance resilience and prevent similar occurrences in the future. We apologize for any inconvenience this incident may have caused.