{
    "timestamp": "2025-12-30 21:45:01",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Cleanup process started (lock acquired)",
    "memory_usage": "28 MB",
    "peak_memory": "28 MB"
}
{
    "timestamp": "2025-12-30 21:45:02",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "CSV file read successfully - 4216 records",
    "memory_usage": "30 MB",
    "peak_memory": "30 MB"
}
{
    "timestamp": "2025-12-30 21:45:02",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Processing 6 courses",
    "memory_usage": "32 MB",
    "peak_memory": "32 MB"
}
{
    "timestamp": "2025-12-30 21:45:02",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Found 374 matching users",
    "memory_usage": "34 MB",
    "peak_memory": "34 MB"
}
{
    "timestamp": "2025-12-30 21:45:05",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Found 180 matching users",
    "memory_usage": "34 MB",
    "peak_memory": "34 MB"
}
{
    "timestamp": "2025-12-30 21:45:07",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Found 2161 matching users",
    "memory_usage": "36 MB",
    "peak_memory": "36 MB"
}
{
    "timestamp": "2025-12-30 21:45:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Found 2366 matching users",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 21:45:42",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Found 1515 matching users",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 21:45:54",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Found 972 matching users",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 21:46:02",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Total allowed user_moodle_ids: 4184 - IDs: 40403, 47055, 49029, 48435, 48767, 40318, 40395, 37946, 43688, 46047...",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 21:46:02",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Total user_moodle_ids to remove from enrollment: 26269",
    "memory_usage": "46 MB",
    "peak_memory": "48.5 MB"
}
{
    "timestamp": "2025-12-30 21:46:32",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Removed 4489 records from users_enrollment table",
    "memory_usage": "46 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:47:00",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Removed 3032 records from users_enrollment table",
    "memory_usage": "46 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:47:30",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Removed 10069 records from users_enrollment table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:47:59",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Removed 9965 records from users_enrollment table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:29",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Removed 7261 records from users_enrollment table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Removed 2507 records from users_enrollment table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Removed 0 records from activity_completion table (Total before: 0, After: 0, Allowed IDs count: 4184)",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Removed 0 records from activity_completion table (Total before: 0, After: 0, Allowed IDs count: 4184)",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Removed 0 records from activity_completion table (Total before: 0, After: 0, Allowed IDs count: 4184)",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Removed 0 records from activity_completion table (Total before: 0, After: 0, Allowed IDs count: 4184)",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Removed 0 records from activity_completion table (Total before: 0, After: 0, Allowed IDs count: 4184)",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Removed 0 records from activity_completion table (Total before: 0, After: 0, Allowed IDs count: 4184)",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Found 0 user_moodle_ids to delete from user_quiz_grade table",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Removed 0 records from user_quiz_grade table (Total before: 0, After: 0, Allowed IDs count: 4184)",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 21:48:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Cleanup completed successfully - CSV records: 4216, Allowed: 4184, Removed: 26269, Counts: {\"users_enrollment\":37323,\"activity_completion\":0,\"user_quiz_grade\":0}",
    "memory_usage": "48 MB",
    "peak_memory": "50.5 MB"
}
{
    "timestamp": "2025-12-30 22:40:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Cleanup process started (lock acquired)",
    "memory_usage": "28 MB",
    "peak_memory": "28 MB"
}
{
    "timestamp": "2025-12-30 22:40:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "CSV file read successfully - 4216 records",
    "memory_usage": "30 MB",
    "peak_memory": "30 MB"
}
{
    "timestamp": "2025-12-30 22:40:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Processing 6 courses",
    "memory_usage": "32 MB",
    "peak_memory": "32 MB"
}
{
    "timestamp": "2025-12-30 22:40:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Found 374 matching users",
    "memory_usage": "34 MB",
    "peak_memory": "34 MB"
}
{
    "timestamp": "2025-12-30 22:40:14",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Found 180 matching users",
    "memory_usage": "34 MB",
    "peak_memory": "34 MB"
}
{
    "timestamp": "2025-12-30 22:40:15",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Found 2161 matching users",
    "memory_usage": "36 MB",
    "peak_memory": "36 MB"
}
{
    "timestamp": "2025-12-30 22:40:32",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Found 2366 matching users",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:40:51",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Found 1515 matching users",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:03",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Found 972 matching users",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Total allowed user_moodle_ids: 4184 - IDs: 40403, 47055, 49029, 48435, 48767, 40318, 40395, 37946, 43688, 46047...",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Total user_moodle_ids to remove from enrollment: 0",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Removed 0 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Removed 0 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Removed 0 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Removed 0 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Removed 0 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Removed 0 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Removed 0 records from activity_completion table (Total before: 17952, After: 17952, Allowed IDs count: 4184)",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Removed 0 records from activity_completion table (Total before: 8640, After: 8640, Allowed IDs count: 4184)",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Removed 0 records from activity_completion table (Total before: 477581, After: 477581, Allowed IDs count: 4184)",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Removed 0 records from activity_completion table (Total before: 653016, After: 653016, Allowed IDs count: 4184)",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:12",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:12",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Removed 0 records from activity_completion table (Total before: 418140, After: 418140, Allowed IDs count: 4184)",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:12",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Found 0 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:12",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Removed 0 records from activity_completion table (Total before: 138024, After: 138024, Allowed IDs count: 4184)",
    "memory_usage": "40 MB",
    "peak_memory": "40 MB"
}
{
    "timestamp": "2025-12-30 22:41:13",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Found 19529 user_moodle_ids to delete from user_quiz_grade table",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2025-12-30 22:41:15",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 10\/391 from user_quiz_grade - Total removed so far: 11462",
    "memory_usage": "48 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2025-12-30 22:41:16",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 20\/391 from user_quiz_grade - Total removed so far: 23660",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2025-12-30 22:41:18",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 30\/391 from user_quiz_grade - Total removed so far: 36235",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2025-12-30 22:41:20",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 40\/391 from user_quiz_grade - Total removed so far: 51155",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2025-12-30 22:41:22",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 50\/391 from user_quiz_grade - Total removed so far: 67436",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2025-12-30 22:41:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 60\/391 from user_quiz_grade - Total removed so far: 81468",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2025-12-30 22:41:26",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 70\/391 from user_quiz_grade - Total removed so far: 104307",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2025-12-30 22:41:28",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 80\/391 from user_quiz_grade - Total removed so far: 127076",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2025-12-30 22:41:31",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 90\/391 from user_quiz_grade - Total removed so far: 147751",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2025-12-30 22:41:33",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 100\/391 from user_quiz_grade - Total removed so far: 170528",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:35",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 110\/391 from user_quiz_grade - Total removed so far: 189349",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:37",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 120\/391 from user_quiz_grade - Total removed so far: 208974",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:39",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 130\/391 from user_quiz_grade - Total removed so far: 228685",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:41",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 140\/391 from user_quiz_grade - Total removed so far: 249762",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:43",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 150\/391 from user_quiz_grade - Total removed so far: 270596",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:46",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 160\/391 from user_quiz_grade - Total removed so far: 293875",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:48",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 170\/391 from user_quiz_grade - Total removed so far: 316248",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:50",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 180\/391 from user_quiz_grade - Total removed so far: 338259",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:52",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 190\/391 from user_quiz_grade - Total removed so far: 362386",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:55",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 200\/391 from user_quiz_grade - Total removed so far: 389741",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:41:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 210\/391 from user_quiz_grade - Total removed so far: 417977",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2025-12-30 22:42:00",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 220\/391 from user_quiz_grade - Total removed so far: 451953",
    "memory_usage": "56 MB",
    "peak_memory": "56 MB"
}
{
    "timestamp": "2025-12-30 22:42:04",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 230\/391 from user_quiz_grade - Total removed so far: 487712",
    "memory_usage": "56 MB",
    "peak_memory": "56 MB"
}
{
    "timestamp": "2025-12-30 22:42:07",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 240\/391 from user_quiz_grade - Total removed so far: 517522",
    "memory_usage": "56 MB",
    "peak_memory": "56 MB"
}
{
    "timestamp": "2025-12-30 22:42:10",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 250\/391 from user_quiz_grade - Total removed so far: 545865",
    "memory_usage": "56 MB",
    "peak_memory": "56 MB"
}
{
    "timestamp": "2025-12-30 22:42:12",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 260\/391 from user_quiz_grade - Total removed so far: 578640",
    "memory_usage": "56 MB",
    "peak_memory": "56 MB"
}
{
    "timestamp": "2025-12-30 22:42:15",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 270\/391 from user_quiz_grade - Total removed so far: 608312",
    "memory_usage": "56 MB",
    "peak_memory": "56 MB"
}
{
    "timestamp": "2025-12-30 22:42:18",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 280\/391 from user_quiz_grade - Total removed so far: 641607",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:20",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 290\/391 from user_quiz_grade - Total removed so far: 668114",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:23",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 300\/391 from user_quiz_grade - Total removed so far: 694585",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:25",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 310\/391 from user_quiz_grade - Total removed so far: 721580",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:27",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 320\/391 from user_quiz_grade - Total removed so far: 748879",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:30",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 330\/391 from user_quiz_grade - Total removed so far: 771163",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:32",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 340\/391 from user_quiz_grade - Total removed so far: 793345",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:34",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 350\/391 from user_quiz_grade - Total removed so far: 818121",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:36",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 360\/391 from user_quiz_grade - Total removed so far: 841390",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:38",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 370\/391 from user_quiz_grade - Total removed so far: 861400",
    "memory_usage": "58 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:40",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 380\/391 from user_quiz_grade - Total removed so far: 880866",
    "memory_usage": "56 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:42",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 390\/391 from user_quiz_grade - Total removed so far: 895214",
    "memory_usage": "56 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:42",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Removed 895405 records from user_quiz_grade table (Total before: 1136646, After: 241241, Allowed IDs count: 4184)",
    "memory_usage": "56 MB",
    "peak_memory": "58 MB"
}
{
    "timestamp": "2025-12-30 22:42:42",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Cleanup completed successfully - CSV records: 4216, Allowed: 4184, Removed: 0, Counts: {\"users_enrollment\":0,\"activity_completion\":0,\"user_quiz_grade\":895405}",
    "memory_usage": "56 MB",
    "peak_memory": "58 MB"
}