What is the problem with nodejs log4js cutting log abnormalities based on date?

log4js.json

{
  "appenders": [
    {
      "category": "iap",
      "type": "dateFile",
      "filename": "logs/iap_record.log",
      "pattern": "-yyyy-MM-dd",
      "layout": {
        "type": "messagePassThrough"
      }
    }
  ],

  "levels": {
    "iap":  "INFO"
  }
}

the last time the name was changed with stat iap_record.log-2018-03-29 , it was found that it was cut at 2018-03-30 01:32:23 . What happened?

Log4js node.js

Feb.28,2021

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-42a438f-5ea1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-42a438f-5ea1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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