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https://hadoop.apache.org/docs/r2.7.2/hadoop-project-dist/hadoop-hdfs/HdfsNfsGateway.html
This will allow the HDFS NFS Gateway to work around the aforementioned bug and still register using the system portmap daemon. To do so, just start the NFS gateway daemon as you normally would, but make sure to do so as the “root” user, and also set the “HADOOP_PRIVILEGED_NFS_USER” environment variable to an unprivileged user.
https://tdwi.org/articles/2014/08/05/nfs-enabled-hadoop.aspx
Aug 05, 2014 · With NFS enablement, HDFS can be accessed using an HDFS client, Web API, and the NFS protocol. This way HDFS will be easier to access and be able to support more applications and use cases. MapR's Direct Access NFS has allowed files to be modified and accessed via mounting the Hadoop cluster over NFS for quite some time.
https://www.netapp.com/us/media/tr-4529.pdf
2.4 NetApp FAS NFS Connector for Hadoop The NetApp FAS NFS Connector for Hadoop allows analytics software such as Apache Hadoop and Spark to use ONTAP to access data using the NFS protocol and a simple configuration file change. By using ONTAP, the connector decouples analytics from storage, leveraging the benefits of NAS to share data.
https://www.netapp.com/us/solutions/applications/big-data-analytics/index.aspx
Store new, unstructured data and keep it available—so your Splunk, Hadoop, and NoSQL workloads are always running. NetApp big-data storage solutions are open, scalable, and backed by comprehensive support. Deliver the consistent high performance and maximum uptime you need to stay ahead.
https://hadoop.apache.org/docs/r3.2.0/hadoop-azure/abfs.html
Introduction. The hadoop-azure module provides support for the Azure Data Lake Storage Gen2 storage layer through the “abfs” connector. To make it part of Apache Hadoop’s default classpath, simply make sure that HADOOP_OPTIONAL_TOOLS in hadoop-env.sh has hadoop-azure in the list.
https://issues.apache.org/jira/browse/HDFS-4750
NFS interface support is one way for HDFS to have such easy integration. This JIRA is to track the NFS protocol support for accessing HDFS. With HDFS client, webHDFS and the NFS interface, HDFS will be easier to access and be able support more applications and use cases. We will upload the design document and the initial implementation.
https://blog.netapp.com/blogs/running-hadoop-analytics-natively-on-nfs-data/
Running Hadoop Analytics Natively on NFS Data. NetApp Staff. ... The NetApp NFS Connector for Hadoop works specifically with MapReduce for the compute or processing part of the Apache Hadoop framework. It can also support other Apache projects, such as Apache HBase (columnar database) and Apache Spark (another processing engine that is ...
https://mapr.com/blog/nfs-what-it-and-why-should-we-care/
Jun 18, 2014 · I guess it's a good time now to point out, that's exactly how MapR works. Its NFS support is POSIX compliant. The next time someone says, "NFS and Hadoop," make sure you ask, "WATF?" What Are the Facts is a series of short videos where we talk to industry analysts and examine claims and issues surrounding Hadoop.
https://cwiki.apache.org/confluence/display/HADOOP2/MountableHDFS/
Also, since NFS often reorders writes, you can have write failures when you use the NFS -> FUSE -> HDFS route. HDFS requires that writes be sequential. Projects. contrib/fuse-dfs is built on fuse, some C glue, libhdfs and the hadoop-dev.jar; fuse-j-hdfs is built on fuse, fuse for java, and the hadoop-dev.jar
https://community.cloudera.com/t5/Support-Questions/HDFS-NFS-startup-error-ERROR-mount-MountdBase-Failed-to/td-p/236249
TLDR: nfs gateway service was already running (by default, apparently) and the service that I thought was blocking the hadoop nfs3 service (jsvc.exec) from starting was (I'm assuming) part of that service already running.. What made me suspect this was that when shutting down the cluster, the service also stopped plus the fact that it was using the port I needed for nfs.
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