I have gotten stuck with my first HDP upgrade – from 1.3.2. (CentOS 6.1) There is nothing I can find which gives an overview of Upgrade paths. In fact I can’t seem to find a single document which describes upgrades.
Anyway I decided to go from 1.3.2 to 1.3.3 since that seemed to involve a change to HDFS and be complicated.
I am following this ( http://docs.hortonworks.com/HDPDocuments/Ambari-1.6.1.0/bk_upgrading_Ambari/content/ambari-1.3.0-upgrade.html ) and got as far as step 8.
Open the Ambari Web GUI. If you have continued to run the Ambari Web GUI, do a hard reset on your browser. Use Services View to start the HDFS service. This starts the SecondaryNameNode and the DataNodes.
Unfortunately for me I have NO services listed so I cannot start any of them. I have Heatmaps, but no Dashboard. The “Hosts page lists my six machines successfully)
Checking the Ambari server log I see this coming up a lot
ERROR GangliaPropertyProvider:466 – Caught exception getting Ganglia metrics : spec=http://null/cgi-bin/ etc etc etc
followed by a stack trace:
java.net.UnknownHostException: null
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:195)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
etc etc
are these the same problem? Surely a problem with Ganglia will just affect *monitoring* not stopping and starting services.
PS I cannot see how to search these forums. Am I missing a search button? The search form on the top right only seems to search articles on the main site – not forum posts.
PPS I see that I am supposed to run “ambari check script”
eh?