@Gulshan Agivetova May be you can use the "InvokeHTTP" --> "ReplaceText" --> "PutFile" processors like following: Here in "ReplaceText" processor can be used something like following to replace Search Value = TAB with COMMA ReplaceText Properties: Search Value =      Replacement Value = ,  Character Set = UTF-8 Maximum Buffer Size = 1 MB Replacement Strategy = Regex Replace Evaluation Mode =  Line-by-Line And then it should be able to replace the TABs with Comma. The output of the given inout should be something like: RELM,Satieva_microloans,6,3369,2019-06-12,11:42:00,772103971 RELM,Satieva_microloans,6,3369,2019-06-12,11:42:00,772104117 RELM,Satieva_microloans,6,3369,2019-06-12,11:42:00,772101000 . ... View more

@shraddha srivastav The problem seems to be the Port Conflict on port "8090" . (either change the Zeppelin port to something else or find and kill the other process which is using that port) ERROR [2019-06-12 17:24:49,656] ({main} ZeppelinServer.java[main]:246) - Error while running jettyServer java.io.IOException: Failed to bind to /0.0.0.0:8090 . Caused by: java.net.BindException: Address already in use         at java.base/sun.nio.ch.Net.bind0(Native Method) . So before restarting Zeppelin please make sure that there is no other process which is using that port 8090. Please check which other process is using that port and kill that. # netstat -tnlpa | grep 8090 . You can also try running the following command to see if oyu are able to bind to that port 8090 using simple netcat command or not? this is just to verify if that port is free to be binded or not? # nc -l 8090 If that port is already in use by some other process then you should see the following kind of error when you run that command: # nc -l 8090 Ncat: bind to :::8090: Address already in use. QUITTING. . ... View more

@Michael Klaene In a kerberized cluster you will need to first post your "kdc.admin.credential" to Ambari and then try your other API calls like Example: (Please provide your KDC principal and credentials there. # curl -s -H "X-Requested-By:ambari" --user admin:admin -i -X POST -d '{ "Credential" : { "principal" : "admin/admin", "key" : "admin", "type" : "temporary" } }' http://my-ambari-host:8080/api/v1/clusters/my-cluster/credentials/kdc.admin.credential Then try your API calls: # curl --user admin:admin -i -H "X-Requested-By:ambari" -X PUT -d '{"HostRoles": {"state":"INSTALLED"}}' http://my-ambari-host:8080/api/v1/clusters/my-cluster/hosts/my-host/host_components/ATLAS_CLIENT . The temporary credential store is a keystore in memory where each entry is removed after 90 minutes (from initial creation), when Ambari is restarted, or by user request. The persisted credential store is a keystore stored on disk where each entry is removed only by user request. The option to store a credential in the persisted store is only available if Ambari's credential store has been setup. Please refer to the following HCC Article as well: https://community.hortonworks.com/articles/42927/adding-kdc-administrator-credentials-to-the-ambari.html ... View more

@Adil BAKKOURI We see the following message seems to be causing the DataNode startup failure. 2019-06-11 12:30:52,832 WARN  common.Storage (DataStorage.java:loadDataStorage(418)) - Failed to add storage directory [DISK]file:/hadoop/hdfs/data java.io.IOException: Incompatible clusterIDs in /hadoop/hdfs/data: namenode clusterID = CID-bd1a4e24-9ff2-4ab8-928a-f04000e375cc; datanode clusterID = CID-9a605cbd-1b0e-41d3-885e-f0efcbe54851 Looks like your VERSION file has different cluster IDs present in NameNode and DataNode that need to be correct. Please copy the clusterID from nematode "<dfs.namenode.name.dir>/current/VERSION" and put it in the VERSION file of datanode "<dfs.datanode.data.dir>/current/VERSION" and then try again. Also please check the following link: https://community.hortonworks.com/questions/79432/datanode-goes-dows-after-few-secs-of-starting-1.html ... View more

@Adil BAKKOURI Based on your Latest Logs it looks like after changing the permissions the NameNode is starting fine without any issue. For the DataNode not starting issue please open a Separate HCC thread and Mark this HCC thread as Answered by clicking on "Accept" link on correct answer. ... View more