Stream load 指定column字段较多时报错HTTP header is larger than 8192 bytes.

[U_1681824756812_1569]

starrocks版本StarRocks-2.5.4，使用stream load导入CSV文件入库时，表字段855列，执行入库报错返回400.fe.log中如下日志输出：
[HttpServerHandler.channelRead():70] accept bad request: /api/test/f_l_c_eutrancelltdd_q/_stream_load, error: HTTP header is larger than 8192 bytes.
fe.warn.log:458:com.starrocks.http.HttpRequestException: HTTP header is larger than 8192 bytes.

[jingdan]

fe.conf中配置http_max_header_size，可调大，默认8192