An error occurred while calling o51.start.

I'm sorry to hear that you're experiencing an error. However, I need more information to be able to help you effectively. Could you provide me with some context and details about the error message you're receiving? What program or system are you using? What were you trying to do when the error occurred? Any additional information you can provide will be helpful in identifying the issue and finding a solution.

相关问题

ssc.start()报错Py4JJavaError: An error occurred while calling o41.start. : java.lang.IllegalStateException: Only one StreamingContext may be started in this JVM. Currently running StreamingContext was started atorg.apache.spark.streaming.api.java.JavaStream

这个错误是因为你在同一个 JVM 中尝试启动多个 StreamingContext，而每个 JVM 只能有一个 StreamingContext 在运行。你可以尝试在启动一个新的 StreamingContext 之前停止当前正在运行的 StreamingContext。你可以使用以下代码停止当前正在运行的 StreamingContext：

ssc.stop(stopSparkContext=False, stopGraceFully=True)

这将在优雅的方式下关闭当前的 StreamingContext，而不会关闭底层的 SparkContext。如果你需要关闭 SparkContext，请将 stopSparkContext 参数设置为 True。

注意：在停止 StreamingContext 之后，你需要重新创建一个新的 StreamingContext。