Accepted this answer. More about that below ... View more

how to use - "Incognito Mode" , and what is prefer to use - CRHOM or explorer browezer ? ... View more

@Michael Bronson Yes, service checks can still fail even after successful restart of yarn service. This is because the YARN service checks runs some jobs like following which might fail due to some memory issues (even though RM and NM might be running fine) Example: # yarn org.apache.hadoop.yarn.applications.distributedshell.Client -shell_command ls -num_containers 1 -jar /usr/hdp/current/hadoop-yarn-client/hadoop-yarn-applications-distributedshell.jar -timeout 300000 --queue default . So if service check is failijng then we should check the logs to find out why it failed, we might see some errors on the YARN logs indicating memory issue or container creation related issues or something else. ... View more

I think I found the answer. The dfs.datanode.dir was found inconsistent as I saw it from the logs. I added a healthy datanode, balanced the cluster then deleted the data direcories from the other inconsistent nodes after taking a backup at /tmp. Restarting after that works fine now. ... View more

now we install again ( re-install ) , from ambari GUI ( upgrade ) but we get now the following down its very strange because we set in the ambari GUI the repo for HDP , SDP-GPL and HDP-UTILS and also the 3 repo also exists on each machine what is unclear is that when we try to install the pkg on the machine /usr/bin/yum -d 0 -e 0 -y install '--disablerepo=*' --enablerepo=HDP-2.6-GPL-repo-53,HDP-2.6-repo-53,HDP-UTILS-1.1.0.22-repo-53 hdp-select Package hdp-select-2.6.4.0-91.noarch already installed and latest version then its tell us that pkg already exists but from the log seems that he not found the pkg - hdp-select how it can be? <br>2018-02-26 13:59:25,315 - Will install packages for repository version 2.6.4.0 2018-02-26 13:59:25,316 - Repository['HDP-2.6-repo-53'] {'append_to_file': False, 'base_url': 'http://98.45.232.167/HDP/centos7/2.6.4.0-91', 'action': ['create'], 'components': [u'HDP', 'main'], 'repo_template': '[{{repo_id}}]\nname={{repo_id}}\n{% if mirror_list %}mirrorlist={{mirror_list}}{% else %}baseurl={{base_url}}{% endif %}\n\npath=/\nenabled=1\ngpgcheck=0', 'repo_file_name': 'ambari-hdp-53', 'mirror_list': None} 2018-02-26 13:59:25,333 - File['/etc/yum.repos.d/ambari-hdp-53.repo'] {'content': '[HDP-2.6-repo-53]\nname=HDP-2.6-repo-53\nbaseurl=http://98.45.232.167/HDP/centos7/2.6.4.0-91\n\npath=/\nenabled=1\ngpgcheck=0'} 2018-02-26 13:59:25,334 - Writing File['/etc/yum.repos.d/ambari-hdp-53.repo'] because contents don't match 2018-02-26 13:59:25,335 - Repository['HDP-2.6-GPL-repo-53'] {'append_to_file': True, 'base_url': 'http://98.45.232.167/HDP-GPL/centos7/2.6.4.0-91', 'action': ['create'], 'components': [u'HDP-GPL', 'main'], 'repo_template': '[{{repo_id}}]\nname={{repo_id}}\n{% if mirror_list %}mirrorlist={{mirror_list}}{% else %}baseurl={{base_url}}{% endif %}\n\npath=/\nenabled=1\ngpgcheck=0', 'repo_file_name': 'ambari-hdp-53', 'mirror_list': None} 2018-02-26 13:59:25,343 - File['/etc/yum.repos.d/ambari-hdp-53.repo'] {'content': '[HDP-2.6-repo-53]\nname=HDP-2.6-repo-53\nbaseurl=http://98.45.232.167/HDP/centos7/2.6.4.0-91\n\npath=/\nenabled=1\ngpgcheck=0\n[HDP-2.6-GPL-repo-53]\nname=HDP-2.6-GPL-repo-53\nbaseurl=http://98.45.232.167/HDP-GPL/centos7/2.6.4.0-91\n\npath=/\nenabled=1\ngpgcheck=0'} 2018-02-26 13:59:25,343 - Writing File['/etc/yum.repos.d/ambari-hdp-53.repo'] because contents don't match 2018-02-26 13:59:25,344 - Repository['HDP-UTILS-1.1.0.22-repo-53'] {'append_to_file': True, 'base_url': 'http://98.45.232.167/', 'action': ['create'], 'components': [u'HDP-UTILS', 'main'], 'repo_template': '[{{repo_id}}]\nname={{repo_id}}\n{% if mirror_list %}mirrorlist={{mirror_list}}{% else %}baseurl={{base_url}}{% endif %}\n\npath=/\nenabled=1\ngpgcheck=0', 'repo_file_name': 'ambari-hdp-53', 'mirror_list': None} 2018-02-26 13:59:25,352 - File['/etc/yum.repos.d/ambari-hdp-53.repo'] {'content': '[HDP-2.6-repo-53]\nname=HDP-2.6-repo-53\nbaseurl=http://98.45.232.167/HDP/centos7/2.6.4.0-91\n\npath=/\nenabled=1\ngpgcheck=0\n[HDP-2.6-GPL-repo-53]\nname=HDP-2.6-GPL-repo-53\nbaseurl=http://98.45.232.167/HDP-GPL/centos7/2.6.4.0-91\n\npath=/\nenabled=1\ngpgcheck=0\n[HDP-UTILS-1.1.0.22-repo-53]\nname=HDP-UTILS-1.1.0.22-repo-53\nbaseurl=http://98.45.232.167/\n\npath=/\nenabled=1\ngpgcheck=0'} 2018-02-26 13:59:25,353 - Writing File['/etc/yum.repos.d/ambari-hdp-53.repo'] because contents don't match 2018-02-26 13:59:25,354 - Yum non-completed transactions check passed 2018-02-26 13:59:25,354 - call[('ambari-python-wrap', u'/usr/bin/hdp-select', 'versions')] {} 2018-02-26 13:59:25,426 - call returned (0, '2.6.0.3-8\n2.6.4.0-91') 2018-02-26 13:59:25,427 - Package['hdp-select'] {'retry_on_repo_unavailability': False, 'retry_count': 5, 'use_repos': {u'HDP-2.6-repo-53': u'ambari-hdp-53', u'HDP-2.6-GPL-repo-53': u'ambari-hdp-53', u'HDP-UTILS-1.1.0.22-repo-53': u'ambari-hdp-53'}, 'action': ['upgrade']} 2018-02-26 13:59:25,428 - Installing package hdp-select ('/usr/bin/yum -d 0 -e 0 -y install '--disablerepo=*' --enablerepo=HDP-2.6-GPL-repo-53,HDP-2.6-repo-53,HDP-UTILS-1.1.0.22-repo-53 hdp-select') 2018-02-26 13:59:27,565 - Looking for matching packages in the following repositories: HDP-2.6-repo-53, HDP-2.6-GPL-repo-53, HDP-UTILS-1.1.0.22-repo-53 2018-02-26 13:59:35,337 - No package found for hadoop_${stack_version}(hadoop_(\d|_)+$)<br> <br> ... View more

@Amira khalifa As this issue is resolved and it was because of the classname issue of the driver class, hence can you please mark this HCC thread as Answered by clicking on the "Accept" button that way the mentioned troubleshooting steps can be useful for other HCC users to quickly find/troubleshoot the issue when they see similar issue. ... View more

i have followed the steps but after changing restart zeppeline i am getting below error:- help me to resolve HTTP ERROR: 503 Problem accessing /. Reason: Service Unavailable ... View more

Sorry sometime not read completely come up an issue 😞 works seamlessly.! ... View more