[Samba] "file not found" under high-contention
starlight.2012q2 at binnacle.cx
starlight.2012q2 at binnacle.cx
Fri May 11 09:21:44 MDT 2012
At 07:49 AM 5/11/2012 -0700, Jeremy Allison wrote:
>On Fri, May 11, 2012 at 10:39:57AM -0400,
>Need to see the over the wire trace to really
>know I'm afraid.
Ran 'procmon'. Here is a trace of the Samba scenario:
Date & Time: 5/11/2012 11:11:36
Event Class: File System
Operation: QueryStandardInformationFile
Result: SUCCESS
Path: \\siobhan\d\df\sr\inc\df_types.h
TID: 5608
Duration: 0.0000141
AllocationSize: 1,048,576
EndOfFile: 8,546
NumberOfLinks: 1
DeletePending: False
Directory: False
Date & Time: 5/11/2012 11:11:36
Event Class: File System
Operation: QueryFileInternalInformationFile
Result: SUCCESS
Path: \\siobhan\d\df\sr\inc\df_types.h
TID: 5608
Duration: 0.0000097
IndexNumber: 0x81f
Date & Time: 5/11/2012 11:11:36
Event Class: File System
Operation: QueryBasicInformationFile
Result: SUCCESS
Path: \\siobhan\d\df\sr\inc\df_types.h
TID: 5608
Duration: 0.0000124
CreationTime: 12/8/2010 15:23:15
LastAccessTime: 5/11/2012 11:11:36
LastWriteTime: 12/8/2010 15:23:15
ChangeTime: 12/8/2010 15:23:15
FileAttributes: N
Date & Time: 5/11/2012 11:11:36
Event Class: File System
Operation: QueryStandardInformationFile
Result: SUCCESS
Path: \\siobhan\d\df\sr\inc\df_types.h
TID: 5608
Duration: 0.0000180
AllocationSize: 1,048,576
EndOfFile: 8,546
NumberOfLinks: 1
DeletePending: False
Directory: False
Date & Time: 5/11/2012 11:11:36
Event Class: File System
Operation: QueryFileInternalInformationFile
Result: SUCCESS
Path: \\siobhan\d\df\sr\inc\df_types.h
TID: 5608
Duration: 0.0000083
IndexNumber: 0x81f
Date & Time: 5/11/2012 11:11:36
Event Class: File System
Operation: QueryNameInformationFile
Result: SUCCESS
Path: \\siobhan\d\df\sr\inc\df_types.h
TID: 5608
Duration: 0.0000078
Name: \siobhan\d\df\sr\inc\df_types.h
====================
And here is the trace of the good, NTFS scenario:
Date & Time: 5/11/2012 11:18:46
Event Class: File System
Operation: QueryFileInternalInformationFile
Result: SUCCESS
Path: C:\flume\env\kf_i_errlog
TID: 6804
Duration: 0.0000024
IndexNumber: 0x1400000001557f
Date & Time: 5/11/2012 11:18:46
Event Class: File System
Operation: QueryBasicInformationFile
Result: SUCCESS
Path: C:\flume\env\kf_i_errlog
TID: 6804
Duration: 0.0000020
CreationTime: 9/27/2010 21:41:52
LastAccessTime: 9/27/2010 21:41:52
LastWriteTime: 8/15/2001 13:41:14
ChangeTime: 5/11/2012 11:18:35
FileAttributes: A
Date & Time: 5/11/2012 11:18:46
Event Class: File System
Operation: QueryStandardInformationFile
Result: SUCCESS
Path: C:\flume\env\kf_i_errlog
TID: 6804
Duration: 0.0000022
AllocationSize: 0
EndOfFile: 0
NumberOfLinks: 2
DeletePending: False
Directory: False
Date & Time: 5/11/2012 11:18:46
Event Class: File System
Operation: QueryFileInternalInformationFile
Result: SUCCESS
Path: C:\flume\env\kf_i_errlog
TID: 6804
Duration: 0.0000017
IndexNumber: 0x1400000001557f
Date & Time: 5/11/2012 11:18:46
Event Class: File System
Operation: QueryNameInformationFile
Result: SUCCESS
Path: C:\flume\env\kf_i_errlog
TID: 6804
Duration: 0.0000023
Name: \flume\env\kf_i_errlog
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