Spark Doris Connector can not stop

[voyagertanyao]

Hi, I am using spark-dorms-connector-3.1_2.12_1.1.0 release and Doris 1.2.0-rc04
here is the problem.
Here is my application code :

package cn.vediot.bigdata

import org.apache.spark.sql.SparkSession

object S3ToDoris {
  def main(args: Array[String]): Unit = {
    val spark = SparkSession.builder()
      .master("local[4]")
      .getOrCreate()

    val sql =
      """
        |CREATE TEMPORARY VIEW doris_bigdata_user_info
        |USING doris
        |OPTIONS(
        |  "table.identifier"="bigdata.user_info",
        |  "fenodes"="10.12.21.58:8030",
        |  "user"="root",
        |  "password"="",
        |);""".stripMargin

    spark.sql(sql)

    val sql0 =
      """
        |insert into doris_bigdata_user_info select
        |2003,'sunliu','18874218716',18,'SH-pudong','2023-02-03'
        |""".stripMargin

    spark.sql(sql0)

    spark.sql("select * from doris_bigdata_user_info").show(false)
  }

}

every thing works fine when I built my spark application into a jar ,and submit this spark application in linux env.

However, When I debug my code in IDEA, things were different, I can query the newly inserted data in Doris, it means my sql0 executed ,but my application in idea cannot execute the next query sql spark.sql("select * from doris_bigdata_user_info").show(false).

This picture shows that spark application hang up there for too long, but data has already into doris (duplicate data was produced because of retrying for many times by myself ).

I debug this issue for a while, I found that sql0 executed as a Doris stream load http request to BE, and got the response from BE . The code while ((line = br.readLine()) != null) worked well, but after that, it can not reach the code return new LoadResponse(status, respMsg, response.toString()); in org.apache.doris.spark.DorisStreamLoad in function private LoadResponse loadBatch(String value) , even can not reach catch block or finally block .

And Here is spark-doris code

I think that's the reason why my application hang up somewhere, and spark con not stop. Or any other reason for my application can not stop in IDEA env?

[voyagertanyao]

Finally, I found there is a net proxy on my local env, turning off this proxy can make it success. So doris spark connector has some relation with proxy ? And this relation seems to exist only when there is a insert into sql, if we just query data from doris without inserting data into it, my code also works, no matter a proxy exists or not. WHY?