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What are the advantages and disadvantages of hdfs in hadoop

2025-01-24 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >

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This article will explain in detail what are the advantages and disadvantages of hdfs in hadoop. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

/ download FileSystem fs = FileSystem.get (new URI ("hdfs://xxxx:9000"), new Configuration (); InputStream in = fs.open (new Path ("/ xxx")); / / HDFS path OutputStream out =.. IOUtils.copyBytes (in,out,buffersize,close); / / upload InputStream in =.. FileSystem fs = FileSystem.get (new URI ("hdfs://xxxx:9000"), new Configuration ()); OutputStream out = fs.create (new Path ("...")) / / hdfs path IOUtils.copyBytes (in,out,buffersize,close); / / question: Permission Denied-permission error / / FileSystem fs = FileSystem.get (new URI ("hdfs://xxxx:9000"), new Configuration (), "root"); / / Delete files and folders (if there is content in the folder to be deleted, you must choose recursive deletion) boolean fs.delete (new Path ("destination hdfs path"), whether to delete it recursively) / / create a folder boolean fs.mkdirs (new Path (".."); this is the end of the article on "what are the advantages and disadvantages of hdfs in hadoop". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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