[LU-4784] refresh of samba share

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 1.8.7, Lustre 1.8.9
• Type: Question/Request
• Priority: Minor
• Reporter: Supporto Lustre Jnet2000 (Inactive)
• Assignee: Emoly Liu
• Resolution: Cannot Reproduce

Environment

rhel5.7.samba3x-3.5.4-0.83, windows 7

Description

Our filesystem is exported via samba. When a user modify directory content on a lustre client these changes don't apper on share until the f5 key is pressed on windows client. Otherwise, when same operation is executed directly on the node that export filesystem (a xen virtual machine) the share reflect the changes immediately. How we can fix this problem ?

Comments

[Peter Jones]

Emoly

Could you please advise on this one?

Thanks

Peter

[Supporto Lustre Jnet2000 (Inactive)]

If you run this simple script in a directory of a lustre client that not export the filesystem via samba, the content doesn't appear on the pc that see this directory through samba. Otherwise if you run the same script on the same directory on the client that export the filesystem via samba the content is updated immediately. I think that may be a problem of cache coerency. Regards

[Supporto Lustre Jnet2000 (Inactive)]

In the aim to collect more info with the attached script I created files on a client while on the samba server I run the command watch -n1 "ls dir_to_watch" to ensure that the server see the files: server refresh correctly, but the pc don't see the files until the f5 key is pressed.

[Emoly Liu]

After reading the description and comments carefully, I redid the experiment but failed to reproduce the problem.

My local test environment is windows7 + samba3.0.33 + lustre1.8.9 (kernel 2.6.18-348.3.1.el5).

My steps are here:
1. add [test] to smb.conf as follows

[test]
        comment = For testing only, please
        path = /mnt/lustre/smb_test
        read only = no
        guest ok = yes

2. mount lustre to /mnt/lustre, and mkdir /mnt/lustre/smb_test
3. restart /etc/init.d/smb service to share /mnt/lustre/smb_test with the windows7 pc
4. cp genfiles to /mnt/lustre/smb_test, and run that
5. find file.$TIMESTAMP.rpc can be updated immediately on the pc.

If possible, could you please provide your steps in detail? Thanks. I tried many times but still can't hit this problem.

[John Fuchs-Chesney (Inactive)]

I'm marking this as 'Cannot Reproduce'.

If you need more work on this ticket please let us know.

Thanks,
~ jfc.