Hi malahal, thanks for your reply.
CentOS7.5 doesn't has this issue, so this seems a bug in kNFS.
I need to find a solution for CentOS7.2, so I search the release notes for 7.3~7.6, and fail to find anything about this.
Then I find bug https://bugzilla.redhat.com/show_bug.cgi?id=1519701, but the bug is not confirmed yet.

So could anyone tell me how to find the link for this issue? Thanks in advance.


--------------------------------


----- 原始邮件 -----
发件人：Malahal Naineni <malahal@gmail.com>
收件人：zhbingyin@sina.com
抄送人：ganesha-devel <devel@lists.nfs-ganesha.org>
主题：[NFS-Ganesha-Devel] Re: rsize and wsize on centos7.2 not working
日期：2019年09月25日 13点28分

I remember an issue like this with early shipments of RHEL7. I recall it as a defect in kNFS, My memory could be wrong though. These are exchanged very early on, so I imagine this is due to NFS client (Centos 7.2). Try with Centos 7.6, if you don't see this issue then it is clear where the issue is.

On Wed, Sep 25, 2019 at 9:03 AM QR <zhbingyin@sina.com> wrote:
In CentOS7.2 under v4.0, the wsize is 1048576, but when writing 1048576 bytes on a file, ganesha receives 4 requests.
The problem is who splits the 1MB request to 4 requests(256KB)?
Is anyone know about this? Thanks in advance.

Ganesha server info
    ganesha version: V2.7.6
    FSAL           : gluster
nfs client info
    nfs version    : nfs v4.0
    client info    : CentOS Linux release 7.2.1511(3.10.0-327.el7.x86_64)
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