Job aborted due to stage failure: Task 2 in stage 9.0 failed 1 times: java.lang.NullPointerException

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于 2020-04-17 14:07:05 发布

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分类专栏： StructStreamToMysql空指针

本文链接：https://blog.youkuaiyun.com/weixin_45793819/article/details/105579160

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博客讲述了在使用StrucetStream从Kafka读取数据并写入MySQL时遇到的任务失败问题，具体表现为Stage 9.0的Task 2异常终止，错误为NullPointerException。作者通过排查发现是由于全局变量connections未成功建立连接导致。解决方案是移除变量定义前的val关键字，确保全局connections变量能够正确赋值。

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StrucetStream 读取kafka数据到mysql 里面报的错

Caused by: org.apache.spark.SparkException: Job aborted due to stage failure: Task 2 in stage 9.0 failed 1 times, most recent failure: Lost task 2.0 in stage 9.0 (TID 810, localhost, executor driver): java.lang.NullPointerException
	at com.czxy.Struct2_hw20200416.structStreaming_kafka_mysql$intoMysql.process(structStreaming_kafka_mysql.scala:73)
	at com.czxy.Struct2_hw202004

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