Member since
12-11-2015
213
Posts
87
Kudos Received
2
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
3276 | 12-20-2016 03:27 PM | |
12974 | 07-26-2016 06:38 PM |
05-04-2016
07:55 PM
Thank you so much Benjamin. We are starting with small size cluster with 2 MasterNode (32GB each), 4 DataNode and 1EdgeNode.
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05-31-2016
09:52 AM
Backup Hue /etc/init.d/hue stop
su - hue
mkdir ~/hue_backup
cd /var/lib/hue
sqlite3 desktop.db .dump > ~/hue_backup/desktop.bak
Backup the Hue Configuration cp -RL /etc/hue/conf ~/hue_backup
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12-30-2016
03:39 AM
2 Kudos
@Prakash Punj I just tested it. It is easy to reproduce. Stop YARN. Move the NameNode in Safe Mode and take a checkpoint. Attempt to Start YARN. It won't and the error is exactly the one described in the article. Take NameNode out of Safe Mode. Start YARN. All is good now! Please vote/accept.
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07-02-2019
05:53 PM
Ambari agent could also fail due to a bug which requires: force_https_protocol=PROTOCOL_TLSv1_2
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03-12-2016
12:59 AM
Thank you everyone...all great answers..
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03-04-2016
04:25 PM
3 Kudos
Hi @Prakash Punj
You can use NiFi to supervise a directory and ingest each new file to HDFS (GetFile and PutHDFS processors). https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi.processors.standard.GetFile/index.html You can do Spark in a browser with Zeppelin. You can have it in Ambari with the Zeppelin view. Some tutorials here http://hortonworks.com/hadoop/zeppelin/#tutorials To avoid a SPOF you need HDFS HA. Federation is having multiple NNs for managing very big clusters and reducing the stress on a single NN. In Ambari you can have admin users and simple users. Simple users have less power in Ambari.
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05-20-2016
05:53 PM
1 Kudo
See https://community.hortonworks.com/articles/34424/apache-zeppelin-on-hdp-242.html for security (authentication/access control) with Zeppelin.
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02-15-2017
04:30 PM
How do you do this? I have no idea how to delete the entry in the ambari database
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03-06-2016
05:17 PM
1 Kudo
Explicit denial is mentioned in next version 0.6 of Ranger. https://cwiki.apache.org/confluence/display/RANGER/Deny-conditions+and+excludes+in+Ranger+policies
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