Fri Apr 11 13:24:48.136 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.
Fri Apr 11 13:24:48.136
about to fork child process, waiting until server is ready for connections.
all output going to: /usr/local/mongodb/shard1_3/shard1_3.log
forked process: 5281
ERROR: child process failed, exited with error number 100
需要进入该数据库目录下，删除mongod.lock然后，重启。即可！！！