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nsabharwal
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Master Mentor

Re: Changing IP address of hosts managed by ambari

by Master Mentor in Support Questions
‎01-21-2016 01:24 PM
‎01-21-2016 01:24 PM
@Rahul Pathak That's why we recommend to use FQDN. If you used hostnames then you don't have to do anything. ... View more

Re: How to verify if NameNode is good to leave saf...

by Master Mentor in Support Questions
‎01-21-2016 01:19 PM
‎01-21-2016 01:19 PM
@Rahul Pathak Safe mode is ON. The reported blocks 8900092 needs additional 6476 blocks to reach the threshold 1.0000 of total blocks 8906567 See this article https://community.hortonworks.com/articles/1949/how-to-leave-hdfs-and-name-node-safemode.html ... View more

Re: How to verify if NameNode is good to leave saf...

by Master Mentor in Support Questions
‎01-21-2016 01:13 PM
‎01-21-2016 01:13 PM
@Rahul Pathak My understanding is, it is enough to check that there are no missing and corrupt files using hadoop fsck - This is correct. hadoop dfsadmin -safemode leave If you are not sure then "engage support" ... View more

Re: What kind of growth has index solr?

by Master Mentor in Support Questions
‎01-21-2016 12:52 PM
‎01-21-2016 12:52 PM
@Davide Isoardi Good thread to read - link Solr Cloud - link ... View more

Re: hive settings missing in ambari

by Master Mentor in Support Questions
‎01-21-2016 12:50 PM
‎01-21-2016 12:50 PM
@mahadev @jeff ... View more

Re: how to format HDFS in an already installed clu...

by Master Mentor in Support Questions
‎01-21-2016 12:48 PM
‎01-21-2016 12:48 PM
@Gerd Koenig For blank copy hadoop namenode -format ( Don't use this in production or any env in use) Now, re: Corrupt block -- see this http://stackoverflow.com/questions/19205057/how-to-fix-corrupt-hadoop-hdfs Official doc Now, challenge is HA - I suggest to open a support case if you have access to support ... View more

Re: Can I use Hbase as a datalake

by Master Mentor in Support Questions
‎01-21-2016 12:38 PM
‎01-21-2016 12:38 PM
@Mehdi TAZI If you have a plan in place to load data into HBase and looking for fast response time then HBase is is a good solution. HBase resides on HDFS ... View more

Re: hive settings missing in ambari

by Master Mentor in Support Questions
‎01-21-2016 04:47 AM
‎01-21-2016 04:47 AM
@Raja Sekhar Chintalapati Clear the browser history and try again restart ambari if not working then you will have to open a support case ... View more

Re: Sqoop import data

by Master Mentor in Support Questions
‎01-21-2016 04:45 AM
‎01-21-2016 04:45 AM
@Revlin Abbi ERROR tool.ImportTool:EncounteredIOException running import job: org.apache.hadoop. security.AccessControlException:Permission denied: user=root, access=WRITE, inode="/user/root/.staging ":hdfs:hdfs:drwxr-xr-x fix: su - hdfs hdfs dfs -chown -R root:hdfs /user/root exit then run the job ... View more

Re: What is our stand on "Hive on Spark"

by Master Mentor in Support Questions
‎01-20-2016 07:18 PM
‎01-20-2016 07:18 PM
@vshukla ... View more
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