hadoop为什么会出现no tasktracker to stop的错误

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解决时间 2021-02-28 23:14

提问者网友：萌卜娃娃
2021-02-28 00:04

root@ubuntu:/# stop-all.sh
stopping jobtracker
Hadoop-B: no tasktracker to stop
stopping namenode
Hadoop-B: stopping datanode
Hadoop-A: stopping secondarynamenode
root@ubuntu:/# start-all.sh
starting namenode, logging to /usr/local/hadoop-0.20.205.0/libexec/../logs/hadoop-root-namenode-ubuntu.out
Warning: $HADOOP_HOME is deprecated.

Hadoop-B: starting datanode, logging to /usr/local/hadoop-0.20.205.0/libexec/../logs/hadoop-root-datanode-ubuntu.out
Hadoop-B: Warning: $HADOOP_HOME is deprecated.
Hadoop-B:
Hadoop-A: starting secondarynamenode, logging to /usr/local/hadoop-0.20.205.0/libexec/../logs/hadoop-root-secondarynamenode-ubuntu.out
Hadoop-A: Warning: $HADOOP_HOME is deprecated.
Hadoop-A:
starting jobtracker, logging to /usr/local/hadoop-0.20.205.0/libexec/../logs/hadoop-root-jobtracker-ubuntu.out
Warning: $HADOOP_HOME is deprecated.

Hadoop-B: starting tasktracker, logging to /usr/local/hadoop-0.20.205.0/libexec/../logs/hadoop-root-tasktracker-ubuntu.out
Hadoop-B: Warning: $HADOOP_HOME is deprecated.
Hadoop-B:

root@ubuntu:/# stop-all.sh
stopping jobtracker
Hadoop-B: no tasktracker to stop
stopping namenode
Hadoop-B: stopping datanode
Hadoop-A: stopping secondarynamenode

最佳答案

五星知识达人网友：低音帝王
2021-02-28 00:53

因为Hadoop-B上的MapReduce服务没启动的起来。
你可以查下Hadoop-B上的tasktracker日志，看有没有报错。

全部回答

1楼网友：从此江山别
2021-02-28 02:31

楼下正解

2楼网友：野慌
2021-02-28 02:17

这个我没用过，留给标记。当作支持

3楼网友：千杯敬自由
2021-02-28 01:33

你好！到HADOOP-B上jps下，看看tasktracker启来没。如果对你有帮助，望采纳。

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