Solution: MongoDB permissions on/data/K0 are too open

When you deploy a MongoDB cluster (replica set), the Key File Permission fails. the startup parameters are as follows:

Mongod -- replset RS1 -- Keyfile/data/K0 -- fork -- Port 27017 -- dbpath/data/rs0 -- logpath =/data/log/r0.log -- logappend The error message is as follows:

Sun Jan 27 14:18:06 permissions on/data/K0 are too open

Check the K0 file permissions:[Root @ vm3 data] # ll/data/K0

-RW-r -- 1 Root 29 01-27 13:57/data/K0

You can see that anyone has the read permission, because the permission is too large, you need to lower the permission:[Root @ vm3 data] # chmod 400/data/K0

Enable OK again