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  1. #1

    Copies over NFS and buffer issue

    Hi All,
    i'm experiencing some strange behavior (at least for me) of my NFS server.

    In few words I have a server that exposes a directory via NFS and a client that mount it.
    I tested a simple copy from the client to the exposed directory of a file of 2GB and i see that on the server the file is created pretty soon, then no byte is written for a while (checking with ls -la), then the size increases from 0 to something like 8MB, then after a while to 12MB and so on....clearly with some buffer since it doesn't increase "linearly".

    This is how the directory is exported:
    # exportfs -v
    /nfs/dir my-client(rw,async,wdelay,root_squash,no_subtree_chec k,fsid=0,anonuid=65534,anongid=65534)

    And in the fstab client file i have:
    server:/ /nfs/dir nfs4 rw,rsize=32768,wsize=32768,intr 0 0

    Is there any option to remove that buffered behaviour ?

    Thanks in advance

  2. #2
    Linux Guru Lakshmipathi's Avatar
    Join Date
    Sep 2006
    3rd rock from sun - Often seen near moon
    may be checkout options given here NFS for clusters

    and noac disables all caching.
    First they ignore you,Then they laugh at you,Then they fight with you,Then you win. - M.K.Gandhi
    FOSS India Award winning ext3fs Undelete tool Online Linux Terminal

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