{
    "timestamp": "2026-01-21 10:33:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Cleanup process started (lock acquired)",
    "memory_usage": "28 MB",
    "peak_memory": "28 MB"
}
{
    "timestamp": "2026-01-21 10:33:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "CSV file read successfully - 45 records",
    "memory_usage": "28 MB",
    "peak_memory": "28 MB"
}
{
    "timestamp": "2026-01-21 10:33:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Processing 6 courses",
    "memory_usage": "28 MB",
    "peak_memory": "28 MB"
}
{
    "timestamp": "2026-01-21 10:33:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Found 3 matching users",
    "memory_usage": "30 MB",
    "peak_memory": "30 MB"
}
{
    "timestamp": "2026-01-21 10:33:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Found 2 matching users",
    "memory_usage": "30 MB",
    "peak_memory": "30 MB"
}
{
    "timestamp": "2026-01-21 10:33:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Found 17 matching users",
    "memory_usage": "30 MB",
    "peak_memory": "30 MB"
}
{
    "timestamp": "2026-01-21 10:33:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Found 17 matching users",
    "memory_usage": "30 MB",
    "peak_memory": "30 MB"
}
{
    "timestamp": "2026-01-21 10:33:25",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Found 8 matching users",
    "memory_usage": "30 MB",
    "peak_memory": "30 MB"
}
{
    "timestamp": "2026-01-21 10:33:25",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Found 5 matching users",
    "memory_usage": "30 MB",
    "peak_memory": "30 MB"
}
{
    "timestamp": "2026-01-21 10:33:25",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Total allowed user_moodle_ids: 38 - IDs: 12375, 25096, 22044, 57401, 57406, 57541, 57519, 57530, 57494, 57526...",
    "memory_usage": "30 MB",
    "peak_memory": "30 MB"
}
{
    "timestamp": "2026-01-21 10:33:25",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Total user_moodle_ids to remove from enrollment: 30415",
    "memory_usage": "38 MB",
    "peak_memory": "40.5 MB"
}
{
    "timestamp": "2026-01-21 10:33:58",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Removed 4860 records from users_enrollment table",
    "memory_usage": "38 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:34:32",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Removed 3210 records from users_enrollment table",
    "memory_usage": "38 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:35:06",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Removed 12213 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:35:40",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Removed 12314 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:14",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Removed 8768 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:47",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Removed 3474 records from users_enrollment table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:47",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Found 1 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:47",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 38: Removed 48 records from activity_completion table (Total before: 48, After: 0, Allowed IDs count: 38)",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:47",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Found 1 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:47",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 39: Removed 48 records from activity_completion table (Total before: 48, After: 0, Allowed IDs count: 38)",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:47",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Found 13 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:47",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 45: Removed 2873 records from activity_completion table (Total before: 2873, After: 0, Allowed IDs count: 38)",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:47",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Found 18 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:48",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 46: Removed 4968 records from activity_completion table (Total before: 4968, After: 0, Allowed IDs count: 38)",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:48",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Found 9 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:48",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 47: Removed 2484 records from activity_completion table (Total before: 2484, After: 0, Allowed IDs count: 38)",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:48",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Found 11 user_moodle_ids to delete from activity_completion table",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:48",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Course 68: Removed 1562 records from activity_completion table (Total before: 1562, After: 0, Allowed IDs count: 38)",
    "memory_usage": "40 MB",
    "peak_memory": "42.5 MB"
}
{
    "timestamp": "2026-01-21 10:36:49",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Found 22972 user_moodle_ids to delete from user_quiz_grade table",
    "memory_usage": "46 MB",
    "peak_memory": "46 MB"
}
{
    "timestamp": "2026-01-21 10:36:51",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 10\/460 from user_quiz_grade - Total removed so far: 11909",
    "memory_usage": "46 MB",
    "peak_memory": "48 MB"
}
{
    "timestamp": "2026-01-21 10:36:52",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 20\/460 from user_quiz_grade - Total removed so far: 23989",
    "memory_usage": "46 MB",
    "peak_memory": "48 MB"
}
{
    "timestamp": "2026-01-21 10:36:54",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 30\/460 from user_quiz_grade - Total removed so far: 36911",
    "memory_usage": "46 MB",
    "peak_memory": "48 MB"
}
{
    "timestamp": "2026-01-21 10:36:56",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 40\/460 from user_quiz_grade - Total removed so far: 52310",
    "memory_usage": "46 MB",
    "peak_memory": "48 MB"
}
{
    "timestamp": "2026-01-21 10:36:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 50\/460 from user_quiz_grade - Total removed so far: 69287",
    "memory_usage": "46 MB",
    "peak_memory": "48 MB"
}
{
    "timestamp": "2026-01-21 10:36:59",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 60\/460 from user_quiz_grade - Total removed so far: 83684",
    "memory_usage": "48 MB",
    "peak_memory": "48 MB"
}
{
    "timestamp": "2026-01-21 10:37:01",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 70\/460 from user_quiz_grade - Total removed so far: 104784",
    "memory_usage": "48 MB",
    "peak_memory": "48 MB"
}
{
    "timestamp": "2026-01-21 10:37:03",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 80\/460 from user_quiz_grade - Total removed so far: 130905",
    "memory_usage": "48 MB",
    "peak_memory": "48 MB"
}
{
    "timestamp": "2026-01-21 10:37:05",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 90\/460 from user_quiz_grade - Total removed so far: 153595",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2026-01-21 10:37:07",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 100\/460 from user_quiz_grade - Total removed so far: 176873",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2026-01-21 10:37:09",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 110\/460 from user_quiz_grade - Total removed so far: 197640",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2026-01-21 10:37:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 120\/460 from user_quiz_grade - Total removed so far: 219152",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2026-01-21 10:37:13",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 130\/460 from user_quiz_grade - Total removed so far: 239295",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2026-01-21 10:37:15",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 140\/460 from user_quiz_grade - Total removed so far: 259376",
    "memory_usage": "50 MB",
    "peak_memory": "50 MB"
}
{
    "timestamp": "2026-01-21 10:37:17",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 150\/460 from user_quiz_grade - Total removed so far: 283619",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2026-01-21 10:37:18",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 160\/460 from user_quiz_grade - Total removed so far: 305046",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2026-01-21 10:37:20",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 170\/460 from user_quiz_grade - Total removed so far: 330044",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2026-01-21 10:37:22",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 180\/460 from user_quiz_grade - Total removed so far: 355045",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2026-01-21 10:37:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 190\/460 from user_quiz_grade - Total removed so far: 379485",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2026-01-21 10:37:27",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 200\/460 from user_quiz_grade - Total removed so far: 407354",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2026-01-21 10:37:29",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 210\/460 from user_quiz_grade - Total removed so far: 436262",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2026-01-21 10:37:31",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 220\/460 from user_quiz_grade - Total removed so far: 466764",
    "memory_usage": "52 MB",
    "peak_memory": "52 MB"
}
{
    "timestamp": "2026-01-21 10:37:34",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 230\/460 from user_quiz_grade - Total removed so far: 504302",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:37",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 240\/460 from user_quiz_grade - Total removed so far: 543238",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:40",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 250\/460 from user_quiz_grade - Total removed so far: 575805",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:42",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 260\/460 from user_quiz_grade - Total removed so far: 606881",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:45",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 270\/460 from user_quiz_grade - Total removed so far: 641367",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:47",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 280\/460 from user_quiz_grade - Total removed so far: 675486",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:50",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 290\/460 from user_quiz_grade - Total removed so far: 711502",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:52",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 300\/460 from user_quiz_grade - Total removed so far: 745729",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:55",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 310\/460 from user_quiz_grade - Total removed so far: 776226",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:57",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 320\/460 from user_quiz_grade - Total removed so far: 807268",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:37:59",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 330\/460 from user_quiz_grade - Total removed so far: 837820",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:02",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 340\/460 from user_quiz_grade - Total removed so far: 868745",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:04",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 350\/460 from user_quiz_grade - Total removed so far: 894219",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:06",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 360\/460 from user_quiz_grade - Total removed so far: 920362",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:09",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 370\/460 from user_quiz_grade - Total removed so far: 946785",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:11",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 380\/460 from user_quiz_grade - Total removed so far: 977250",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:13",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 390\/460 from user_quiz_grade - Total removed so far: 1005143",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:15",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 400\/460 from user_quiz_grade - Total removed so far: 1032561",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:17",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 410\/460 from user_quiz_grade - Total removed so far: 1053874",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:19",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 420\/460 from user_quiz_grade - Total removed so far: 1077983",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:21",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 430\/460 from user_quiz_grade - Total removed so far: 1098850",
    "memory_usage": "54 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:23",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 440\/460 from user_quiz_grade - Total removed so far: 1117268",
    "memory_usage": "52 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:24",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 450\/460 from user_quiz_grade - Total removed so far: 1129984",
    "memory_usage": "52 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:25",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Deleted chunk 460\/460 from user_quiz_grade - Total removed so far: 1135674",
    "memory_usage": "52 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:25",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Removed 1135674 records from user_quiz_grade table (Total before: 1136646, After: 972, Allowed IDs count: 38)",
    "memory_usage": "52 MB",
    "peak_memory": "54 MB"
}
{
    "timestamp": "2026-01-21 10:38:25",
    "level": "INFO",
    "function": "cleanupDataByCsv",
    "message": "Cleanup completed successfully - CSV records: 45, Allowed: 38, Removed: 30415, Counts: {\"users_enrollment\":44839,\"activity_completion\":11983,\"user_quiz_grade\":1135674}",
    "memory_usage": "52 MB",
    "peak_memory": "54 MB"
}