@wert_1311,   (1)   Activity Monitor is only useful if you are using MapReduce1.  I doubt you are, so you can just delete Activity Monitor if that is true.  If you are using YARN for jobs, then you can remove Activity Monitor.   (2)   In the instructions, you need to copy the driver to /user/share/java.  Please list the contents so we can see if the cloudera-scm user has read access:   # ls -la /usr/share/java   You might compare permissions with the old, working hostl to see that the same directory and containing files have the same permissions.  The assumption here is that it is likely that Java just cannot access the mysql driver. ... View more

@Paulina,   Sorry for the mistake... I meant that now with the suggested change, the resulting group lookup filter will be:   (&(objectClass=posixGroup)(|(gidNumber=1004)(memberUid=maslova)))   This is because the hadoop.security.group.mapping.ldap.posix.attr.uid.name property tells ldapgroupmapping which user attribute to use to obtain the value for group lookup.  In your LDAP config that is "uid"   ... View more

Thanks @bgooley I solved this by upgrading os and kerberos version. It works fine for me now. Thanks for your help ... View more

@JoaoBarreto,   It is possible to do so, but it is not something we document or test exactly.   The closest steps would be only doing the Cloudera Manager steps here: https://www.cloudera.com/documentation/enterprise/5-15-x/topics/install_singleuser_reqts.html#concept_ivr_lng_2v   Since the agent runs as "root" by default, you shouldn't need to do any of the agent-specific steps there.   Also, the Management Service "System User" and "System Group" are "cloudera-scm" by default.   You may need to do a little trial and error to get everything working, but I don't think it would be too bad. ... View more

Hi,   solution is that in /var/hdfs-sockets/dn  dn should not be created as directory. dn will be created automatically as a file. My mistake was becase I created dn also as directory and that is why I was getting an error.   Thank you for assitance ... View more