EMR Spark-TransportClient:无法发送RPC [英] EMR Spark - TransportClient: Failed to send RPC

问题描述

我遇到此错误，我试图增加群集实例以及执行程序和驱动程序参数上的内存，但没有成功.

I'm getting this error, I tried to increase memory on cluster instances and in the executor and driver parameters without success.

17/05/07 23:17:07 ERROR TransportClient: Failed to send RPC 6465703946954088562 to ip-172-30-12-164.eu-central-1.compute.internal/172.30.12.164:34706: java.nio.channels.ClosedChannelException

有人能解决此错误吗?

顺便说一句，我正在使用YARN作为集群管理器

BTW I'm using YARN as cluster manager

预先感谢

推荐答案

最后，我解决了这个问题.这是由于磁盘空间不足.一列hadoop日志显示:

Finally I resolved the problem. It was due to insufficient disk space. One column of hadoop logs showed:

Hadoop纱:1/1本地目录不正确:/var/lib/hadoop-yarn/cache/yarn/nm-local-dir; 1/1日志目录不正确:/var/log/hadoop-yarn/containers

Hadoop YARN: 1/1 local-dirs are bad: /var/lib/hadoop-yarn/cache/yarn/nm-local-dir; 1/1 log-dirs are bad: /var/log/hadoop-yarn/containers

使用Google搜索，发现

Googling it I found http://gethue.com/hadoop-yarn-11-local-dirs-are-bad-varlibhadoop-yarncacheyarnnm-local-dir-11-log-dirs-are-bad-varloghadoop-yarncontainers/

如果遇到此错误，请腾出一些磁盘空间！"

"If you are getting this error, make some disk space!"

要查看此错误，我必须激活EMR中的纱线记录.参见

To see this error I have to activate the yarn logs in EMR. See

http://docs.aws.amazon. com/emr/latest/ManagementGuide/emr-web-interfaces.html

要访问群集ec2实例中的日志端口，我为此更改了安全组

To have access to the logs port in the cluster ec2 instances I changed security groups for it

即:

主实例在这里监听:172.30.12.84:8088和核心 此处的实例:172.30.12.21:8042

master instance was listening here: 172.30.12.84:8088 And core instance here: 172.30.12.21:8042

最后，我解决了在etl.py中更改实例类型，使其他实例具有更大磁盘的问题:

Finally I fixed the problem changing in etl.py the type of instances by other ones with bigger disks:

主版:m3.2xlarge
核心:c3.4xlarge

master: m3.2xlarge
core: c3.4xlarge

这篇关于EMR Spark-TransportClient:无法发送RPC的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！