com.ption.TiClientInternalException,Error reading region

com.ption.TiClientInternalException,Error reading region

执行临时Job FillAppInfo，对Tidb加载数据时，Job频繁报错：

20/02/25 05:41:59 INFO TaskSetManager: Starting task 9.1 in stage 3.0 (TID 3771, n45-14.fn.ams.osa, partition 9, PROCESS_LOCAL, 5706 bytes)
20/02/25 05:41:59 INFO YarnSchedulerBackend$YarnDriverEndpoint: Launching task 3771 on executor id: 4 hostname: n45-14.fn.ams.osa.
20/02/25 05:41:59 WARN TaskSetManager: Lost task 6.0 in stage 3.0 (TID 3765, n45-14.fn.ams.osa): java.sql.BatchUpdateException: (conn=3979867) unexpected end of stream, read 0 bytes from 4 (socket was closed by server)at org.mariadb.uteBatchExceptionEpilogue(MariaDbStatement.java:288)at org.mariadb.uteBatch(ClientSidePreparedStatement.java:301)at com.opera.adx.infra.JDBCTool$$anonfun$exportWith$1.apply(ExportTool.scala:50)at com.opera.adx.infra.JDBCTool$$anonfun$exportWith$1.apply(ExportTool.scala:41)at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1$$anonfun$apply$28.apply(RDD.scala:902)at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1$$anonfun$apply$28.apply(RDD.scala:902)at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1899)at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1899)at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70)at org.apache.spark.scheduler.Task.run(Task.scala:86)at org.utor.Executor$TaskRunner.run(Executor.scala:274)at urrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)at urrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)at java.lang.Thread.run(Thread.java:745)
Caused by: java.sql.SQLNonTransientConnectionException: (conn=3979867) unexpected end of stream, read 0 bytes from 4 (socket was closed by server)at org.mariadb.jdbc.in