curl --user "uid=user1,ou=people,o=emr" "ldap://master-1-1:10389/o=emr??sub"

ldap_modify: No such object (32)
    matched DN: cn=config

ldapsearch -H ldapi:/// -Y EXTERNAL -b "cn=config" -LLL -Q "olcDatabase=*" dn

[root@master-1-1(xx) ~]# vim admin.ldif 
dn: olcDatabase={2}hdb,cn=config
changetype: modify
replace: olcAccess
olcAccess: {0}to attrs=userPassword,shadowLastChange by dn="uid=admin,o=emr" write by anonymous auth by self write by * none
olcAccess: {1}to dn.base="" by * read
olcAccess: {2}to * by self write by dn="uid=admin,o=emr" write by * read

ldapmodify -Y EXTERNAL -H ldapi:/// -f admin.ldif

curl --user "uid=user1,ou=people,o=emr" "ldap://master-1-1:10389/o=emr??sub"