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三台机器组成的hadoop2.7集群中,重新初始化之后再次启动启动,发现以下问题:
~/hadoop-2.7.7/sbin/stop-yarn.sh \
&& ~/hadoop-2.7.7/sbin/stop-dfs.sh
~/hadoop-2.7.7/bin/hadoop namenode -format \
&& ~/hadoop-2.7.7/bin/hdfs namenode -format
rm -rf /home/hadoop/work/tmp/* \
&& mkdir -p /home/hadoop/work/tmp/dfs/name \
&& mkdir -p /home/hadoop/work/tmp/dfs/data
~/hadoop-2.7.7/sbin/start-dfs.sh \
&& ~/hadoop-2.7.7/sbin/start-yarn.sh
[hadoop@node1 logs]$ jps
9664 DataNode
9974 Jps
9784 NodeManager
[hadoop@node0 ~]$ ~/hadoop-2.7.7/bin/hdfs dfs -mkdir /input
[hadoop@node0 ~]$ ~/hadoop-2.7.7/bin/hdfs dfs -put ~/GoneWiththeWind.txt /input
[hadoop@node0 ~]$ ~/hadoop-2.7.7/bin/hdfs dfs -ls /input
Found 1 items
-rw-r--r-- 3 hadoop supergroup 2372994 2019-10-27 11:44 /input/GoneWiththeWind.txt