[Gluster-users] tailing active files

Keith Freedman freedman at FreeFormIT.com
Tue Jan 13 23:23:43 UTC 2009


At 03:20 AM 1/13/2009, Krishna Srinivas wrote:
>Avati's mail did not reach the list I think, here are the contents:
>
>---
>The problem is that FUSE does not invalidate cache when data is
>written through an fd opened in direct IO mode. Opening the write fd
>in direct IO mode is necessary for performance reasons in fuse till
>very recent versions (otherwise writes happen in 4KB chunks).  You can
>mount the filesystem with --disable-direct-io-mode and you will
>observe that tail -f works fine.
>
>We plan to get rid of the while direct IO mess when newer version of
>fuse is available (where large writes are permitted)

Will there be a gluster optimized version of fuse 2.7.4
or will we not need a special version in order to support posix locking?





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