晋哥哥的私房钱

Java

• 获取JVM进程的heap dump
  jmap -dump:format=b,file=/root/heap.bin 13951

MongoDB

• 在MongoDB里创建Capped Collection
  db.createCollection("c",{capped:true,size:150000000})

Git

• 拉取远程分支
  git checkout -b local-branchname origin/remote_branchname