doris 4 ,通过Stream Load 导入json文件，每次都只导入了1条

curl --location-trusted -u root:     -H "label:1234222211113243211124"     -H "Expect:100-continue"     -H "format:json" -H "strip_outer_array:false"     -H "jsonpaths:[\"$.project_name\",  \"$.create_time\"]"     -H "columns:project_name,create_time"     -T /20251112_json_1.csv     -XPUT http://127.0.0.1:8030/api/test/log2/_stream_load
{
    "TxnId": 4007,
    "Label": "1234222211113243211124",
    "Comment": "",
    "TwoPhaseCommit": "false",
    "Status": "Success",
    "Message": "OK",
    "NumberTotalRows": 1,
    "NumberLoadedRows": 1,
    "NumberFilteredRows": 0,
    "NumberUnselectedRows": 0,
    "LoadBytes": 96687479,
    "LoadTimeMs": 250,
    "BeginTxnTimeMs": 0,
    "StreamLoadPutTimeMs": 20,
    "ReadDataTimeMs": 39,
    "WriteDataTimeMs": 203,
    "ReceiveDataTimeMs": 63,
    "CommitAndPublishTimeMs": 24
}

20251112_json_1 有90MB， 为什么？？ 怎么排查？ 谢谢！