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https://issues.apache.org/jira/browse/HADOOP-4?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12572335#action_12572335
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Pete Wyckoff commented on HADOOP-4:
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Hi Craig,
I see now that the buffer size for the OS reads is only 128K and since there's
no ioctl for fuse to bump it up, it's a problem. I think what we can do is
create a fuse block device mount and then using blockdev -setblocksize 128M, we
should see some real speedups.
Unfortunately, fuse on my dev machine isn't configured properly for this.
First there's no /dev/fuseblk which it assumes and even with that there I get
a useless error message.
I just want to verify with one of the kernel guys here how big the buffer can
get before going to crazy. I'll ask one of them today and update this tomorrow.
-- pete
> tool to mount dfs on linux
> --------------------------
>
> Key: HADOOP-4
> URL: https://issues.apache.org/jira/browse/HADOOP-4
> Project: Hadoop Core
> Issue Type: Improvement
> Components: fs
> Affects Versions: 0.5.0
> Environment: linux only
> Reporter: John Xing
> Assignee: Pete Wyckoff
> Attachments: fuse-dfs.tar.gz, fuse-dfs.tar.gz, fuse-dfs.tar.gz,
> fuse-dfs.tar.gz, fuse-dfs.tar.gz,
> fuse-hadoop-0.1.0_fuse-j.2.2.3_hadoop.0.5.0.tar.gz,
> fuse-hadoop-0.1.0_fuse-j.2.4_hadoop.0.5.0.tar.gz, fuse-hadoop-0.1.1.tar.gz,
> fuse-j-hadoopfs-03.tar.gz, fuse_dfs.c, fuse_dfs.c, fuse_dfs.c, fuse_dfs.c,
> fuse_dfs.sh, Makefile
>
>
> tool to mount dfs on linux
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