{
    "timestamp": "2026-09-30 08:37:47",
    "level": "WARNING",
    "data": {
        "action": "processSessionSubmit_ems_status_false",
        "message": "EMS submit trả về thất bại.",
        "idHistoryContest": "6abc676ac5e863e5d778aec2",
        "response": {
            "status": false,
            "code": 404,
            "message": "Có lỗi xảy ra, vui lòng thử lại sau.",
            "error": {
                "status": false,
                "message": "HistoryContest đã finish"
            }
        }
    }
}
{
    "timestamp": "2026-09-30 08:37:47",
    "level": "INFO",
    "data": {
        "action": "handleEmsSubmissionFailure_completed",
        "message": "Đã xử lý fallback khi EMS submit thất bại: fe_submission_status = 2, checkSubmissionDeadline, score_processing_status = 1, is_deadline_checked = 1.",
        "idHistoryContest": "6abc676ac5e863e5d778aec2",
        "tenantConnection": "lms_tenant_icc",
        "student_score_id": 6064
    }
}
{
    "timestamp": "2026-09-30 08:46:12",
    "level": "INFO",
    "data": {
        "action": "backfill_student_exam_histories",
        "id": 9696,
        "idHistoryContest": "6abc69e2c5e863e5d778af55",
        "skill": 14,
        "task_number": null,
        "idbaikiemtra": 10886
    }
}
{
    "timestamp": "2026-09-30 08:46:12",
    "level": "INFO",
    "data": {
        "action": "backfill_student_exam_histories",
        "id": 9697,
        "idHistoryContest": "6abc69e4c5e863e5d778af69",
        "skill": 15,
        "task_number": 1,
        "idbaikiemtra": 10887
    }
}
{
    "timestamp": "2026-09-30 08:46:12",
    "level": "INFO",
    "data": {
        "action": "backfill_student_exam_histories",
        "id": 9698,
        "idHistoryContest": "6abc69e4c5e863e5d778af69",
        "skill": 15,
        "task_number": 2,
        "idbaikiemtra": 10887
    }
}
{
    "timestamp": "2026-09-30 08:46:12",
    "level": "INFO",
    "data": {
        "action": "backfill_student_exam_histories",
        "id": 9699,
        "idHistoryContest": "6abc69e4c5e863e5d778af73",
        "skill": 16,
        "task_number": null,
        "idbaikiemtra": 10888
    }
}
{
    "timestamp": "2026-09-30 08:46:12",
    "level": "INFO",
    "data": {
        "action": "processSessionSubmit_success",
        "message": "Submit mock contest session thành công",
        "idHistoryContest": "6abc69d3c5e863e5d778af14",
        "timeTotal": 0.2720470428466797
    }
}