I am getting error while installing namenode where it says "-safemode get | grep 'Safe mode is OFF''" Ambari:2.7.0.0 HDP:3.0 I got the below error and I ran : >hdfs dfsadmin -safemode leave >Output:safemode: Call From devaz01/10.161.137.4 to devaz01:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused then I ran>chmod -R 644 /var/log/hadoop/hdfs Since then I am getting: Execution of 'ambari-sudo.sh su hdfs -l -s /bin/bash -c 'ulimit -c unlimited ; /usr/hdp/3.0.1.0-187/hadoop/bin/hdfs --config /usr/hdp/3.0.1.0-187/hadoop/conf --daemon start namenode'' returned 1. ERROR: Unable to write in /var/log/hadoop/hdfs. Aborting. 019-02-08 03:31:21,394 - Retrying after 10 seconds. Reason: Execution of '/usr/hdp/current/hadoop-hdfs-namenode/bin/hdfs dfsadmin -fs hdfs://machine:8020 -safemode get | grep 'Safe mode is OFF'' returned 1. safemode: Call From machine/xx.xxx.xxx.x to machine:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused safemode: Call From machine/10.161.137.4 to machine:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused ... View more

I am trying to install HDP 3.0 version on a 6 node cluster where 5 nodes act as ambari-agent and 1 node as server. Here is the log file: stderr: Traceback (most recent call last): File "/var/lib/ambari-agent/cache/stacks/HDP/3.0/services/RANGER_KMS/package/scripts/kms_server.py", line 137, in <module> KmsServer().execute() File "/usr/lib/ambari-agent/lib/resource_management/libraries/script/script.py", line 353, in execute method(env) File "/var/lib/ambari-agent/cache/stacks/HDP/3.0/services/RANGER_KMS/package/scripts/kms_server.py", line 51, in install kms.setup_kms_db() File "/var/lib/ambari-agent/cache/stacks/HDP/3.0/services/RANGER_KMS/package/scripts/kms.py", line 68, in setup_kms_db copy_jdbc_connector(kms_home) File "/var/lib/ambari-agent/cache/stacks/HDP/3.0/services/RANGER_KMS/package/scripts/kms.py", line 359, in copy_jdbc_connector Please run 'ambari-server setup --jdbc-db={db_name} --jdbc-driver={path_to_jdbc} on server host.'".format(params.db_flavor, params.jdk_location) KeyError: 'db_name' stdout: 2019-02-02 04:43:22,791 - Stack Feature Version Info: Cluster Stack=3.0, Command Stack=None, Command Version=None -> 3.0 2019-02-02 04:43:22,810 - Using hadoop conf dir: /usr/hdp/3.0.1.0-187/hadoop/conf 2019-02-02 04:43:22,813 - Group['kms'] {} 2019-02-02 04:43:22,815 - Group['livy'] {} 2019-02-02 04:43:22,815 - Group['spark'] {} 2019-02-02 04:43:22,819 - Group['ranger'] {} 2019-02-02 04:43:22,820 - Group['hdfs'] {} 2019-02-02 04:43:22,820 - Group['hadoop'] {} 2019-02-02 04:43:22,820 - Group['users'] {} 2019-02-02 04:43:22,821 - User['yarn-ats'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None} 2019-02-02 04:43:22,824 - User['hive'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None} 2019-02-02 04:43:22,829 - User['zookeeper'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None} 2019-02-02 04:43:22,831 - User['oozie'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop', 'users'], 'uid': None} 2019-02-02 04:43:22,833 - User['ams'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None} 2019-02-02 04:43:22,835 - User['ranger'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['ranger', 'hadoop'], 'uid': None} 2019-02-02 04:43:22,840 - User['tez'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop', 'users'], 'uid': None} 2019-02-02 04:43:22,842 - User['kms'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['kms', 'hadoop'], 'uid': None} 2019-02-02 04:43:22,844 - User['livy'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['livy', 'hadoop'], 'uid': None} 2019-02-02 04:43:22,849 - User['spark'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['spark', 'hadoop'], 'uid': None} 2019-02-02 04:43:22,851 - User['ambari-qa'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop', 'users'], 'uid': None} 2019-02-02 04:43:22,853 - User['kafka'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None} 2019-02-02 04:43:22,858 - User['hdfs'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hdfs', 'hadoop'], 'uid': None} 2019-02-02 04:43:22,860 - User['yarn'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None} 2019-02-02 04:43:22,862 - User['mapred'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None} 2019-02-02 04:43:22,867 - User['hbase'] {'gid': 'hadoop', 'fetch_nonlocal_groups': True, 'groups': ['hadoop'], 'uid': None} 2019-02-02 04:43:22,868 - File['/var/lib/ambari-agent/tmp/changeUid.sh'] {'content': StaticFile('changeToSecureUid.sh'), 'mode': 0555} 2019-02-02 04:43:22,871 - Execute['/var/lib/ambari-agent/tmp/changeUid.sh ambari-qa /tmp/hadoop-ambari-qa,/tmp/hsperfdata_ambari-qa,/home/ambari-qa,/tmp/ambari-qa,/tmp/sqoop-ambari-qa 0'] {'not_if': '(test $(id -u ambari-qa) -gt 1000) || (false)'} 2019-02-02 04:43:22,884 - Skipping Execute['/var/lib/ambari-agent/tmp/changeUid.sh ambari-qa /tmp/hadoop-ambari-qa,/tmp/hsperfdata_ambari-qa,/home/ambari-qa,/tmp/ambari-qa,/tmp/sqoop-ambari-qa 0'] due to not_if 2019-02-02 04:43:22,885 - Directory['/tmp/hbase-hbase'] {'owner': 'hbase', 'create_parents': True, 'mode': 0775, 'cd_access': 'a'} 2019-02-02 04:43:22,887 - File['/var/lib/ambari-agent/tmp/changeUid.sh'] {'content': StaticFile('changeToSecureUid.sh'), 'mode': 0555} 2019-02-02 04:43:22,889 - File['/var/lib/ambari-agent/tmp/changeUid.sh'] {'content': StaticFile('changeToSecureUid.sh'), 'mode': 0555} 2019-02-02 04:43:22,891 - call['/var/lib/ambari-agent/tmp/changeUid.sh hbase'] {} 2019-02-02 04:43:22,905 - call returned (0, '1017') 2019-02-02 04:43:22,906 - Execute['/var/lib/ambari-agent/tmp/changeUid.sh hbase /home/hbase,/tmp/hbase,/usr/bin/hbase,/var/log/hbase,/tmp/hbase-hbase 1017'] {'not_if': '(test $(id -u hbase) -gt 1000) || (false)'} 2019-02-02 04:43:22,914 - Skipping Execute['/var/lib/ambari-agent/tmp/changeUid.sh hbase /home/hbase,/tmp/hbase,/usr/bin/hbase,/var/log/hbase,/tmp/hbase-hbase 1017'] due to not_if 2019-02-02 04:43:22,915 - Group['hdfs'] {} 2019-02-02 04:43:22,916 - User['hdfs'] {'fetch_nonlocal_groups': True, 'groups': ['hdfs', 'hadoop', u'hdfs']} 2019-02-02 04:43:22,917 - FS Type: HDFS 2019-02-02 04:43:22,918 - Directory['/etc/hadoop'] {'mode': 0755} 2019-02-02 04:43:22,964 - File['/usr/hdp/3.0.1.0-187/hadoop/conf/hadoop-env.sh'] {'content': InlineTemplate(...), 'owner': 'hdfs', 'group': 'hadoop'} 2019-02-02 04:43:22,966 - Directory['/var/lib/ambari-agent/tmp/hadoop_java_io_tmpdir'] {'owner': 'hdfs', 'group': 'hadoop', 'mode': 01777} 2019-02-02 04:43:23,007 - Repository['HDP-3.0-repo-1'] {'append_to_file': False, 'base_url': 'http://public-repo-1.hortonworks.com/HDP/centos7/3.x/updates/3.0.1.0', '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-1', 'mirror_list': None} 2019-02-02 04:43:23,032 - File['/etc/yum.repos.d/ambari-hdp-1.repo'] {'content': '[HDP-3.0-repo-1]\nname=HDP-3.0-repo-1\nbaseurl=http://public-repo-1.hortonworks.com/HDP/centos7/3.x/updates/3.0.1.0\n\npath=/\nenabled=1\ngpgcheck=0'} 2019-02-02 04:43:23,034 - Writing File['/etc/yum.repos.d/ambari-hdp-1.repo'] because contents don't match 2019-02-02 04:43:23,039 - Repository['HDP-3.0-GPL-repo-1'] {'append_to_file': True, 'base_url': 'http://public-repo-1.hortonworks.com/HDP-GPL/centos7/3.x/updates/3.0.1.0', '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-1', 'mirror_list': None} 2019-02-02 04:43:23,049 - File['/etc/yum.repos.d/ambari-hdp-1.repo'] {'content': '[HDP-3.0-repo-1]\nname=HDP-3.0-repo-1\nbaseurl=http://public-repo-1.hortonworks.com/HDP/centos7/3.x/updates/3.0.1.0\n\npath=/\nenabled=1\ngpgcheck=0\n[HDP-3.0-GPL-repo-1]\nname=HDP-3.0-GPL-repo-1\nbaseurl=http://public-repo-1.hortonworks.com/HDP-GPL/centos7/3.x/updates/3.0.1.0\n\npath=/\nenabled=1\ngpgcheck=0'} 2019-02-02 04:43:23,050 - Writing File['/etc/yum.repos.d/ambari-hdp-1.repo'] because contents don't match 2019-02-02 04:43:23,050 - Repository['HDP-UTILS-1.1.0.22-repo-1'] {'append_to_file': True, 'base_url': 'http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.22/repos/centos7', '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-1', 'mirror_list': None} 2019-02-02 04:43:23,060 - File['/etc/yum.repos.d/ambari-hdp-1.repo'] {'content': '[HDP-3.0-repo-1]\nname=HDP-3.0-repo-1\nbaseurl=http://public-repo-1.hortonworks.com/HDP/centos7/3.x/updates/3.0.1.0\n\npath=/\nenabled=1\ngpgcheck=0\n[HDP-3.0-GPL-repo-1]\nname=HDP-3.0-GPL-repo-1\nbaseurl=http://public-repo-1.hortonworks.com/HDP-GPL/centos7/3.x/updates/3.0.1.0\n\npath=/\nenabled=1\ngpgcheck=0\n[HDP-UTILS-1.1.0.22-repo-1]\nname=HDP-UTILS-1.1.0.22-repo-1\nbaseurl=http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.22/repos/centos7\n\npath=/\nenabled=1\ngpgcheck=0'} 2019-02-02 04:43:23,060 - Writing File['/etc/yum.repos.d/ambari-hdp-1.repo'] because contents don't match 2019-02-02 04:43:23,061 - Package['unzip'] {'retry_on_repo_unavailability': False, 'retry_count': 5} 2019-02-02 04:43:23,519 - Skipping installation of existing package unzip 2019-02-02 04:43:23,519 - Package['curl'] {'retry_on_repo_unavailability': False, 'retry_count': 5} 2019-02-02 04:43:23,570 - Skipping installation of existing package curl 2019-02-02 04:43:23,570 - Package['hdp-select'] {'retry_on_repo_unavailability': False, 'retry_count': 5} 2019-02-02 04:43:23,626 - Skipping installation of existing package hdp-select 2019-02-02 04:43:23,639 - The repository with version 3.0.1.0-187 for this command has been marked as resolved. It will be used to report the version of the component which was installed 2019-02-02 04:43:24,364 - Package['ranger_3_0_1_0_187-kms'] {'retry_on_repo_unavailability': False, 'retry_count': 5} 2019-02-02 04:43:24,819 - Skipping installation of existing package ranger_3_0_1_0_187-kms 2019-02-02 04:43:24,822 - Stack Feature Version Info: Cluster Stack=3.0, Command Stack=None, Command Version=None -> 3.0 2019-02-02 04:43:24,892 - Using hadoop conf dir: /usr/hdp/3.0.1.0-187/hadoop/conf 2019-02-02 04:43:24,910 - Execute[('cp', '-f', u'/usr/hdp/current/ranger-kms/install.properties', u'/usr/hdp/current/ranger-kms/install-backup.properties')] {'not_if': 'ls /usr/hdp/current/ranger-kms/install-backup.properties', 'sudo': True, 'only_if': 'ls /usr/hdp/current/ranger-kms/install.properties'} 2019-02-02 04:43:24,923 - Skipping Execute[('cp', '-f', u'/usr/hdp/current/ranger-kms/install.properties', u'/usr/hdp/current/ranger-kms/install-backup.properties')] due to not_if 2019-02-02 04:43:24,924 - Password validated 2019-02-02 04:43:24,930 - The repository with version 3.0.1.0-187 for this command has been marked as resolved. It will be used to report the version of the component which was installed Command failed after 1 tries ... View more