Member since
09-24-2015
527
Posts
136
Kudos Received
19
Solutions
My Accepted Solutions
Title | Views | Posted |
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2128 | 06-30-2017 03:15 PM | |
3053 | 10-14-2016 10:08 AM | |
8317 | 09-07-2016 06:04 AM | |
10063 | 08-26-2016 11:27 AM | |
1449 | 08-23-2016 02:09 PM |
02-12-2016
06:49 AM
1 Kudo
its worked for me 🙂 The directory for the lib i need to create from HDFS. Many thanks
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03-04-2016
12:08 AM
1 Kudo
Does it mean if the cluster is kerberized, we don't need Knox ? Only Ranger installation is enough.
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02-12-2016
07:21 PM
1 Kudo
@Benjamin Leonhardi, please see this post: https://community.hortonworks.com/articles/16719/hdfs-data-durability-and-availability-with-replica.html. Please up-vote it if you like it 🙂
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02-11-2016
11:52 PM
@Geoffrey Shelton Okot Yes and it has the detail instruction..Interesting video indeed!
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02-09-2016
05:26 PM
@Roberto Sancho The NFS Gateway for HDFS allows clients to mount HDFS and interact with it through NFS, as if it were part of their local file system. The gateway supports NFSv3. After mounting HDFS, a user can:
Browse the HDFS file system through their local file system on NFSv3 client-compatible operating systems. Upload and download files between the HDFS file system and their local file system. Stream data directly to HDFS through the mount point. (File append is supported, but random write is not supported.) Prerequisites The NFS Gateway machine must be running all components that are necessary for running an HDFS client, such as a Hadoop core JAR file and a HADOOP_CONF directory. The NFS Gateway can be installed on any DataNode, NameNode, or HDP client machine. Start the NFS server on that machine. Here are steps https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.2/bk_hdfs_nfs_gateway/content/user-guide-hdfs-nfs-instructions.html
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02-04-2016
11:16 AM
@Roberto Sancho Its fixed in Hadoop 2.7.2 https://issues.apache.org/jira/browse/HDFS-8099
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05-13-2019
07:07 PM
1 Kudo
@Yan Liu this isn't an issue to worry about. Ambari keeps checking the NN status until it detects that the NN is out of safemode. It usually takes sometime because of the reasons mentioned above.
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02-03-2016
08:04 AM
3 Kudos
You can put a Datanode on the Namenode on a single node sandbox/test cluster, however you should absolutely not do that in a production environment. Its good practice to separate your master (Namenode, Resourcemanager,..) and worker nodes (Datanode, Nodemanager,..). The actual service allocation and number of nodes depend on your use case and cluster size.
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02-02-2016
05:48 PM
@Roberto Sancho that's not what I meant :). Which of the answers helped you resolve the problem, mark that answer as best. Other users have no idea what worked what didn't. Also, you only get points for best answer if someone else accepts your answer.
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02-03-2016
09:46 AM
1 Kudo
Hi: i have resolved the problem adding the jar file into the hadoop path in the Namenode server /usr/hdp/2.3.2.0-2950/hadoop/lib/hadoop-client-2.7.1.jar Regards.
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