Two client sessions running on w2k8 server in WTS (rdesktop) - MS Office locking issue
Jiri Sasek - Solaris Prague
jiri.sasek at oracle.com
Mon Sep 14 21:45:22 UTC 2015
Hi community members,
I have the following issue:
1) Windows 2008R2 Terminal server with 2 users: userA and userB
2) Samba 3.6.x File server sharing the following share:
comment = A test share
path = /export/testshare/%U
writable = yes
printable = no
create mask = 0765
userA connects his F: drive to \\samba-server\testshare (which points to
userB connects his F: drive to \\samba-server\testshare (which points to
3) UserA creates a Microsoft Word document on testshare with name
1234.docx, saves, exits and opens the file again The file is
4) UserB opens a file with the same name on testshare:
/export/testshare/userB/1234.docx, but gets the following message:
'This action can't be completed because the file is open in another program'
This should not happen as both files are on different directories and
have different inode numbers.
Note this happens only when using Windows Terminal server. It is know
that Windows Terminal server opens 1 smb connection per share,hence
userA and userB share the same connection and smbd daemon.
When the same is done on a Windows 2008R2 fileserver, this works without
It also works fine if the clients runs on Win desktops i.e. in
VirtualBox even if those are over the virtual NAT so those are visible
as one IP
...I have also find in knowledge base:
Samba clients using Windows 2008 Terminal Server is slow accessing smb
shares on Solaris Samba.
The performance issue becomes worse over time as more clients are using
This is a Microsoft limitation that it only creates one TCP session for
all terminal server users when using SMB1 Protocol
Windows 2008 Terminal Server does not open one TCP session per user to
SMB1 Protocol fileservers.
This behavior is by design. All users are using one SMB session to samba
server which causes a bottleneck.
Solution: Implement SMB2 Protocol
Do anyone have an experience with this issue?
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