ipc.Client: Retrying connect to server: . Already tried 0 time(s);异常

最新推荐文章于 2024-09-24 16:30:45 发布

weixin_39979119

最新推荐文章于 2024-09-24 16:30:45 发布

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分类专栏：异常文章标签：异常

本文链接：https://blog.youkuaiyun.com/weixin_39979119/article/details/84752927

在执行Hadoop任务时遇到'ipc.Client: Retrying connect to server...'的异常，问题根源在于YARN服务未启动。通过运行'start-yarn.sh'启动ResourceManager服务，可以解决此连接问题。

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hadoop运行任务时出现如下重试异常, 主要原因是没有开启 yarn

start-yarn.sh即可开启ResourceManager服务

[centos@hd3 /opt/hadoop/etc/hadoop]$ hadoop jar /opt/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.7.jar pi 2 2
Number of Maps = 2
Samples per Map = 2
Wrote input for Map #0
Wrote input for Map #1
Starting Job
18/11/28 11:32:07 INFO client.RMProxy: Connecting to ResourceManager at hd3/192.168.25.3:8032
18/11/28 11:32:09 INFO ipc.Client: Retrying connect to server: hd3/192.168.25.3:8032. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
18/11/28 11:32:10 INFO ipc.Client: Retrying connect to server: hd3/192.168.25.3:8032. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
18/11/28 11:32:11 INFO ipc.Client: Retrying connect to server: hd3/192.168.25.3:8032. Already tried 2 time(s); retry policy is Re