摘要:
默认配置是将datanode,namenode,jobtracker,tasktracker,secondarynamenode的pid存放在/tmp目录下,随着linux的定期清理, 这些pid就不见了,当然就无法停止了, 怎么解决呢?在/tmp目录创建或者修改hadoop-hadoop用户名-d... 阅读全文
摘要:
Ctrl + a - Jump to the start of the lineCtrl + b - Move back a charCtrl + c - Terminate the command //用的最多了吧?Ctrl + d - Delete from under the cursorC... 阅读全文
摘要:
#!/bin/bash./step1.sh & >中文i=$!./step2.sh & >西王j=$!wait#echo ${i}#echo ${j}echo "this is last step!"step1.sh会sleep三秒step2.sh直接输出$!是得到最后一个进程的idwait是等待线... 阅读全文