Symptom
Service initialization fails during cluster installation.
Fault Locating
1. Check the LDAP client installation log (/var/log/Bigdata/ldapclient/ldapclient_install.log) on the corresponding LDAP client node and find that the log contains the error information.

2. Check the /etc/pam.d/common-account file and find that account required pam_unix2.so is commented out.
Solution
Check whether account required pam_unix2.so is commented out in any of the following files:
/etc/pam.d/common-account
- /etc/pam.d/common-auth
- /etc/pam.d/common-password
If yes, remove the comment flags.