@Wael Horchani Zeppelin View is Iframe based view so please make sure that whatever host name you see there in the IFrame window, is accessible/resolvable from the host where you are opening the browser. Try putting the mentioned hostname with the IP address in your local machine. ... View more

@Wael Horchani - Do you have correct hostname mapping in your cluster? - Can you check if all the hosts have the correct "hostname -f" output? Also the "/etc/hosts" file mapping? All the hosts in the cluster should be able to access eachother with the correct hostname. - Do you see the correct hostname while making the following API call: http://AMBARI_HOSTNAME:8080/api/v1/clusters/CLUSTER_NAME/hosts/ - Also are you able to access the Zeppelin UI directly using the correct hostname ? If not then you will need to fix the hostname / DNS resolution. http://ZEPPELIN_HOST:9995/ . ... View more

@Asier Gomez Another quick test. Are you able to open the file for cat as following (that will help us in understandaing if there are any special character issue/ new line issue) Example: hdfs dfs -cat /tmp/data/geolocation.csv | head $ hdfs dfs -cat /tmp/data/geolocation.csv | head truckid,driverid,event,latitude,longitude,city,state,velocity,event_ind,idling_ind A54,A54,normal,38.440467,-122.714431,Santa Rosa,California,17,0,0 A20,A20,normal,36.977173,-121.899402,Aptos,California,27,0,0 A40,A40,overspeed,37.957702,-121.29078,Stockton,California,77,1,0 A31,A31,normal,39.409608,-123.355566,Willits,California,22,0,0 A71,A71,normal,33.683947,-117.794694,Irvine,California,43,0,0 A50,A50,normal,38.40765,-122.947713,Occidental,California,0,0,1 A51,A51,normal,37.639097,-120.996878,Modesto,California,0,0,1 A19,A19,normal,37.962146,-122.345526,San Pablo,California,0,0,1 A77,A77,normal,37.962146,-122.345526,San Pablo,California,25,0,0 . ... View more

@Asier Gomez Can you please share the output of the following command: $ hdfs dfs -ls /tmp/data/geolocation.csv - We will need to check two things here 1. The file exist 2. The file has proper read permission for the user 3. Is this the same "Geolocation.zip" (geolocation.csv) file you are using which is shown as part of the demo: http://hortonworks.com/hadoop-tutorial/hello-world-an-introduction-to-hadoop-hcatalog-hive-and-pig/ - I just quickly tested this "geolocation.csv" file at my end ant it works fine. . ... View more

@Qinglin Xia Additionally if you due to some reason if the Ambari is down (not accessible) and still if you want to get the Active HBase Master detail then you can simply use the HBase JMX for the same. Here "16010" is HBase JMX ui port. Exampe: $ curl -v --silent 'http://erie4.example.com:16010/jmx?qry=Hadoop:service=HBase,name=Master,sub=Server' 2>&1 | grep isActiveMaster "tag.isActiveMaster" : "true", $ curl -v --silent 'http://erie3.example.com:16010/jmx?qry=Hadoop:service=HBase,name=Master,sub=Server' 2>&1 | grep isActiveMaster "tag.isActiveMaster" : "false", ... View more

@Qinglin Xia More easy command to access this info using curl by hitting the URL: http://erie1.example.com:8080/api/v1/clusters/ErieCluster/hosts/erie3.example.com/host_components/HBASE_MASTER?fields=metrics/hbase/master/IsActiveMaster curl -u admin:admin -H "X-Requested-By: ambari" -X GET http://erie1.example.com:8080/api/v1/clusters/ErieCluster/hosts/erie4.example.com/host_components/HBASE_MASTER?fields=metrics/hbase/master/IsActiveMaster { "href" : "http://erie1.example.com:8080/api/v1/clusters/ErieCluster/hosts/erie4.example.com/host_components/HBASE_MASTER?fields=metrics/hbase/master/IsActiveMaster", "HostRoles" : { "cluster_name" : "ErieCluster", "component_name" : "HBASE_MASTER", "host_name" : "erie4.example.com" }, "host" : { "href" : "http://erie1.example.com:8080/api/v1/clusters/ErieCluster/hosts/erie4.example.com" }, "metrics" : { "hbase" : { "master" : { "IsActiveMaster" : "true" } } } } . ... View more

@Qinglin Xia You can use the Ambari APIs to find that out using simple "curl" GET you should be able to find the Active HBase Master: http://erie1.example.com:8080/api/v1/clusters/ErieCluster/components/HBASE_MASTER?ServiceComponentInfo/category=MASTER&fields=ServiceComponentInfo/service_name,host_components/HostRoles/display_name,host_components/metrics/hbase/master/IsActiveMaster Example Output: { "href" : "http://erie1.example.com:8080/api/v1/clusters/ErieCluster/components/HBASE_MASTER?ServiceComponentInfo/category=MASTER&fields=ServiceComponentInfo/service_name,host_components/HostRoles/display_name,host_components/metrics/hbase/master/IsActiveMaster", "ServiceComponentInfo" : { "category" : "MASTER", "cluster_name" : "ErieCluster", "component_name" : "HBASE_MASTER", "service_name" : "HBASE" }, "host_components" : [ { "href" : "http://erie1.example.com:8080/api/v1/clusters/ErieCluster/hosts/erie3.example.com/host_components/HBASE_MASTER", "HostRoles" : { "cluster_name" : "ErieCluster", "component_name" : "HBASE_MASTER", "display_name" : "HBase Master", "host_name" : "erie3.example.com" }, "metrics" : { "hbase" : { "master" : { "IsActiveMaster" : "false" } } } }, { "href" : "http://erie1.example.com:8080/api/v1/clusters/ErieCluster/hosts/erie4.example.com/host_components/HBASE_MASTER", "HostRoles" : { "cluster_name" : "ErieCluster", "component_name" : "HBASE_MASTER", "display_name" : "HBase Master", "host_name" : "erie4.example.com" }, "metrics" : { "hbase" : { "master" : { "IsActiveMaster" : "true" } } } } ] } Notice: "IsActiveMaster" : "false" . ... View more

@Zhao Chaofeng Also can you please share the output of the following command "klist -e -k /etc/security/keytabs/hdfs.headless.keytab" to see the encryption types used by the kerberos tickets? # klist -e -k /etc/security/keytabs/hdfs.headless.keytab Keytab name: FILE:/etc/security/keytabs/hdfs.headless.keytab KVNO Principal ---- -------------------------------------------------------------------------- 4 hdfs-JoyCluster@EXAMPLE.COM (des3-cbc-sha1) 4 hdfs-JoyCluster@EXAMPLE.COM (arcfour-hmac) 4 hdfs-JoyCluster@EXAMPLE.COM (aes128-cts-hmac-sha1-96) 4 hdfs-JoyCluster@EXAMPLE.COM (des-cbc-md5) 4 hdfs-JoyCluster@EXAMPLE.COM (aes256-cts-hmac-sha1-96) . ... View more

@Zhao Chaofeng - Please check if the "Reverse lookup" is correct or not on that host? - Also it will be best if you can share the output of to see the kerberos related JAVA options used. ps -ef | grep AmbariServer ps -ef | grep NameNode - Just to verify the correct JAVA Path which has the JCE. . ... View more

@Zhao Chaofeng Since how long you are facing this issue? I mean is there a recent change happened? Or any recent upgrade? What is your HDP and Ambari Version? Only the NameNode is failing with the mentioned "GSS initiate failed", or few other components are also falling with the same issue. I am sure that the Hostname is correct (example: hostname -f). Still it is worth to check. - Is this kind of issue happening on the same host "bigdata013.example.com/<ip-address>:8020" ? Is this the only host (and the components hosted in this host) are giving the "GSS initiate failed" ? Or other hosts of your cluster are also having this issue? - Worth to check the hostname & KDC Connectivity. ... View more