Question

从Eclipse运行Flink程序时，我遇到以下异常：

Caused by: java.io.IOException: Insufficient number of network buffers: required 8, but only 4 available. The total number of network buffers is currently set to 2048. You can increase this number by setting the configuration key 'taskmanager.network.numberOfBuffers'.
    at org.apache.flink.runtime.io.network.buffer.NetworkBufferPool.createBufferPool(NetworkBufferPool.java:196)
    at org.apache.flink.runtime.io.network.NetworkEnvironment.registerTask(NetworkEnvironment.java:173)
    at org.apache.flink.runtime.taskmanager.Task.run(Task.java:577)
    at java.lang.Thread.run(Thread.java:745)

文档（https://ci.apache.org/projects/flink/flink-docs-release-1.3/setup/config.html#configuring-the-network-buffers）表示可以通过conf/flink-conf.yaml更改网络缓冲区的数量。但是，从IDE运行程序时，如何更改它还不清楚。

感谢任何帮助！

Answer 1

通过使用Configuration对象

创建执行环境来解决它

Configuration cfg = new Configuration();
int defaultLocalParallelism = Runtime.getRuntime().availableProcessors();
cfg.setString("taskmanager.network.numberOfBuffers", "3000");
env = StreamExecutionEnvironment.createLocalEnvironment(defaultLocalParallelism, cfg);

从Eclipe IDE运行Flink程序时出现异常

1 个答案: