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https://issues.apache.org/jira/browse/HDFS-3696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13420402#comment-13420402
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Tsz Wo (Nicholas), SZE commented on HDFS-3696:
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I also noticed this problem when I tested WebHdfsFileSystem with 3GB files in
HDFS-3671. After added HttpURLConnection.setChunkedStreamingMode(..), the test
ran well. Since it is only an one-line change, I will add it with the retry
patch (HDFS-3667).
> FsShell put using WebHdfsFileSystem goes OOM when file size is big
> ------------------------------------------------------------------
>
> Key: HDFS-3696
> URL: https://issues.apache.org/jira/browse/HDFS-3696
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha
> Reporter: Kihwal Lee
> Priority: Critical
> Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
>
> When doing "fs -put" to a WebHdfsFileSystem (webhdfs://), the FsShell goes
> OOM if the file size is large. When I tested, 20MB files were fine, but 200MB
> didn't work.
> I also tried reading a large file by issuing "-cat" and piping to a slow sink
> in order to force buffering. The read path didn't have this problem. The
> memory consumption stayed the same regardless of progress.
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