Yarn application has already exited with state FINISHED!-优快云博客

当使用 Spark SQL 遇到 YARN 应用提前退出的错误时，这通常与 yarn-site.xml 中的 yarn.nodemanager.vmem-pmem-ratio 设置有关。该配置的默认值为2.1，若遇到上述错误，建议增大此比例值进行尝试。

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如果在运行spark-sql时遇到如下这样的错误，可能是因为yarn-site.xml中的配置项yarn.nodemanager.vmem-pmem-ratio值偏小，它的默认值为2.1，可以尝试改大一点再试。

ERROR cluster.YarnClientSchedulerBackend: Yarn application has already exited with state FINISHED!

16/10/13 10:23:19 ERROR client.TransportClient: Failed to send RPC 7614640087981520382 to /10.143.136.231:34800: java.nio.channels.ClosedChannelException

java.nio.channels.ClosedChannelException

16/10/13 10:23:19 ERROR cluster.YarnSchedulerBackend$YarnSchedulerEndpoint: Sending RequestExecutors(0,0,Map()) to AM was unsuccessful

java.io.IOException: Failed to send RPC 7614640087981520382 to /10.143.136.231:34800: java.nio.channels.ClosedChannelException

at org.apache.spark.network.client.TransportClient$3.operationComplete(TransportClient.java:249)

at org.apache.spark.network.client.TransportClient$3.operationComplete(TransportClient.java:233)

at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)

at io.netty.util.concurrent.DefaultPromise$LateListeners.run(DefaultPromise.java:845)

at io.netty.util.concurrent.DefaultPromise$LateListenerNotifier.run(DefaultPromise.java:873)

at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357)

at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)

at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)

at java.lang.Thread.run(Thread.java:745)