Shulou(Shulou.com)06/03 Report--

Script parsing start-all.sh

1) enter the / soft/Hadoop/sbin directory first

2) nano start-all.sh

The main things sbin/start-all.sh does:

1) libexec/hadoop-config.sh

2) start-dfs.sh

3) start-yarn.sh

3) cat libexec/hadoop-config.sh hadoop_conf_dir = etc/hadoop

4) cat sbin/start-dfs.sh

The role of sbin/start-dfs.sh:

1) libexec/hadoop-config.sh

2) sbin/hadoop-daemons.sh-config.. -hostname.. Start namenode...

3) sbin/hadoop-daemons.sh-config.. -hostname.. Start datanode...

4) sbin/hadoop-daemons.sh-config.. -hostname.. Start sescondarynamenode...

5) sbin/hadoop-daemons.sh-config.. -hostname.. Start zkfc... / /

5) cat sbin/start-yarn.sh

Libexec/yarn-config.sh action

Sbin/yarn-daemon.sh start resourcemanager

Sbin/yarn-daemons.sh start nodemanager

6) cat sbin/hadoop-daemons.sh

The role of sbin/hadoop-daemons.sh:

Libexec/hadoop-config.sh

Slaves

Hadoop-daemon.sh

7) cat sbin/hadoop-daemon.sh

The role of sbin/hadoop-daemon.sh

Libexec/hadoop-config.sh

Bin/hdfs...

8) sbin/yarn-daemon.sh

Sbin/yarn-daemon.sh action

Libexec/yarn-config.sh

Bin/yarn

Start-all.sh = = config.sh----start-dfs.sh and start-yarn.sh

Start-dfs.sh-config.sh---- (namenode,send,datanode)

Stop-dfs.sh-config--

Hadoop-daemon.sh->

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