LDAP Server on PDB Backup

• There is LDAP server running on PDB Backup as CRS service named 'pdb_ldap'
• To start it or stop it use: crs_start pdb_ldap or crs_stop pdb_ldap
• to update LDAP with the current tnsnames.ora information run on pdb-backup:

  cd ~/production/ldap
  ./tns2oid.pl

Troubleshooting

• to check if the LDAP server is running you can issue on pdb-backup:
  • check on CRS level

    crsstat.sh
    

  • check if server is started

    sudo /etc/init.d/ldap status
    

  • check if LDAP structure is there - this should return: dn: cn=Manager,dc=cern,dc=ch and dn: cn=OracleContext,dc=cern,dc=ch entries

    ldapsearch -s one -b 'dc=cern,dc=ch' dn -x
    

  • check if TNS data is there - this should return few hundreds entries

    ldapsearch -b 'cn=OracleContext, dc=cern,dc=ch' dn -x
    

• if start or stop using crs command fails try using sudo /etc/init.d/ldap start or sudo /etc/init.d/ldap stop
• if LDAP service is not accessible at all on the node or if it is corrupted one can easily recreate the whole setup from scratch by running just one script on pdb-backup (this will also update tns information in the LDAP):

  cd ~/production/ldap
  ./reinitialize.sh