Hello Hadoop friends, I just install a basic HDFS on local disk. But I cannot launch the Files View. The systems answers : Service checks completed. HDFS test Issues detected Service 'hdfs' check failed: Server Error When I go to Services HDFS I got this : The alert is just this : DataNode Unmounted Data Dir Detected data dir(s) that became unmounted and are now writing to the root partition: /media/philippe/Data2/hadoop/hdfs/data CRIT for 6 hours I tried everything to get rid of the errors without success: sudo -u hdfs hdfs fsck / -delete I also tried to rebalance the HDFS. I also tried : sudo -u hdfs hdfs dfs -setrep -w 3 / but then it is waiting forever to this : Waiting for /apps/accumulo/data/tables/!0/table_info/A000012q.rf ... I uninstalled accumulo but I still have the same waiting forever issue. I am just trying to install HDFS on a local linux PC. Do you have any idea to fix this mess please ???? Thanks in advance Philippe ... View more

Hello, I would like to make a very simple installation on a local Linux PC. So at the Install Options Target Hosts I choosed : localhost.local I read that it should be a Fully Qualified Domain Name (FQDN) and that it should be localhost.local and not simply localhost And then I choosed : Perform manual registration on hosts and do not use SSH I did perform the manual registration according to https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.2.2/bk_ambari-administration/content/install_the_ambari_agents_manually.html where I put int the ambari-agent.ini file : [server] hostname=localhost.local url_port=8440 secured_url_port=8441 then at the next install step the Confirming Hosts step is failing. I had a look at the /var/log/ambari-agent.log file which says : INFO 2018-07-02 14:54:15,196 PingPortListener.py:50 - Ping port listener started on port: 8670 WARNING 2018-07-02 14:54:20,199 main.py:441 - Unable to determine the IP address of the Ambari server 'localhost.local' INFO 2018-07-02 14:54:20,200 NetUtil.py:70 - Connecting to https://localhost.local:8440/ca WARNING 2018-07-02 14:54:25,205 NetUtil.py:101 - Failed to connect to https://localhost.local:8440/ca due to [Errno -2] Nom ou service inconnu WARNING 2018-07-02 14:54:25,205 NetUtil.py:124 - Server at https://localhost.local:8440 is not reachable, sleeping for 10 seconds... Please what do you suggest to make it work ??? I only need a very simple installation (no need for ssh and other servers for the moment) Thanks in advance ! Philippe ... View more