Question

我正在尝试运行mapreduce但能够运行低于错误

16/04/28 13:17:07 INFO client.RMProxy: Connecting to ResourceManager at /0.0.0.0:8032
16/04/28 13:17:07 INFO client.RMProxy: Connecting to ResourceManager at /0.0.0.0:8032
16/04/28 13:17:08 INFO ipc.Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
16/04/28 13:17:09 INFO ipc.Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
16/04/28 13:17:10 INFO ipc.Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 2 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
16/04/28 13:17:11 INFO ipc.Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 3 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
16/04/28 13:17:12 INFO ipc.Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 4 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
16/04/28 13:17:13 INFO ipc.Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 5 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
16/04/28 13:17:14 INFO ipc.Client: Retrying connect to server: 0.0.0.0/0.0.0.0:8032. Already tried 6 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)

请注意我已经检查了问题no 20620949和toster.ru/q/57046#answer_208326以及许多其他相关的验证以上Ifound纱线没有安装在我的本地机器上，所以请让我知道纱线是否需要运行单机中的MR工作我的意思是在我的本地linux机箱中（没有任何集群），我们可以在没有纱线的情况下运行MR作业吗？

Answer 1

使用hadoop-2它YARN是默认的调度程序，它管理资源/容器。因此必须有YARN。您可以在单个主机上启动YARN服务，它不需要任何群集。

Answer 2

从技术上讲，您不需要安装YARN。在这种情况下，您需要安装hadoop-mapreduce-v1。但是MRv1已被弃用，您不应该使用它。我的猜测是你已经安装了YARN，但你还没有启动该服务。

您可以做的其他事情之一是从其中一个Hadoop分发供应商那里获得一个开箱即用的图像：Cloudera或Hortonworks。

Answer 3

现在解决了，我正在使用厨师进行部署，在那里我找不到“start-yarn.sh”但是我们全部作为服务，当我启动服务“hadoop-yarn-resourcemanager”它开始工作时，谢谢你的建议和评论。

mapreduce作业未运行

3 个答案: