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Tag: dfs

How to force a checkpointing of metadata in HDFS?

By Eric Ma | In QA | Updated on Nov 21, 2019
> How to force a checkpointing of metadata in HDFS?

How to estimate the memory usage of HDFS NameNode for a HDFS cluster?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to estimate the memory usage of HDFS NameNode for a HDFS cluster?

How to put files with spaces in names into HDFS?

By Q A | In QA | On Mar 24, 2018
> How to put files with spaces in names into HDFS?

How to manually kill HDFS DataNodes?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to manually kill HDFS DataNodes?

How to set the replication factor for one file when it is uploaded by `hdfs dfs -put` command line in HDFS?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to set the replication factor for one file when it is uploaded by `hdfs dfs -put` command line in HDFS?

HDFS stays in safe mode because of reported blocks not reaching 0.9990 of total blocks

By Eric Ma | In QA | Updated on Feb 9, 2019
> HDFS stays in safe mode because of reported blocks not reaching 0.9990 of total blocks

How to set replication factors for HDFS directories?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to set replication factors for HDFS directories?

How to add a new HDFS NameNode metadata directory to an existing cluster?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to add a new HDFS NameNode metadata directory to an existing cluster?

How to check the replication factor of a file in HDFS?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to check the replication factor of a file in HDFS?

How to change number of replications of certain files in HDFS?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to change number of replications of certain files in HDFS?

How to set the data replication factor of Hadoop HDFS?

By Eric Ma | In QA | Updated on Mar 24, 2018
> How to set the data replication factor of Hadoop HDFS?

How to choose the number of mappers and reducers in Hadoop

By Q A | In QA | On Mar 24, 2018
> How to choose the number of mappers and reducers in Hadoop

How to force a metadata checkpointing in HDFS

By Eric Ma | In Storage systems, Systems, Tutorial | Updated on Sep 11, 2017
> How to force a metadata checkpointing in HDFS

Hadoop Installation Tutorial (Hadoop 2.x)

By Eric Ma | In Computing systems, Resource management, Storage systems, Systems, Tutorial | Updated on Dec 29, 2019
> Hadoop Installation Tutorial (Hadoop 2.x)

Hadoop Installation Tutorial (Hadoop 1.x)

By Eric Ma | In Computing systems, Storage systems, Systems | Updated on Nov 28, 2020
> Hadoop Installation Tutorial (Hadoop 1.x)

Hadoop Default Ports

By Eric Ma | In Tutorial | Updated on Mar 27, 2018
> Hadoop Default Ports

A Simple Sort Benchmark on Hadoop

By Eric Ma | In Tutorial | Updated on Apr 5, 2016
> A Simple Sort Benchmark on Hadoop

mrcc – A Distributed C Compiler System on MapReduce

By Eric Ma | In Computing systems | Updated on Aug 30, 2020
> mrcc – A Distributed C Compiler System on MapReduce
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