File Sync / Offline Sharing in OS 10.6
I am trying to do something akin to "offline files" in Windows.
My wife and I run a small business. She keeps the books in Quickbooks Mac and works from a Powerbook (OS 10.6.6) at various locations (home, office, coffee shop, etc.).
I want to be able to open the Quickbooks file, but will not edit the file (only run reports). (ie, my changes need not be sync'd).
Obviously, she can keep the file in shared directory, but since she works at various locations, there will only be a few hours a day when we are both on the same network.
Ideas I am considering -
1.) Have her use iDisk and keep a copy (not the original) of the file there - and I can sync to it
2.) Use a too like File Synchronization 1.4.6 (v152) to sync on her public folder.
It does not appear that putting a Snow Leopard Server in place would be of any help?
Thanks for any feedback / thoughts.
Same problem with a new 2011MBA 11.6" on 10.6.5 and a 2008 MBP 15" on 10.5.8.
I can open MBA from MBP, and share files with no problem, but other way around, can't get the MBA to connect to the MBP.
Anybody from Apple listening here ?
Similar Messages
-
Offline Files sync gives Access Denied on Windows 8.1 Enterprise
A small number of our staff have now been issued with Windows 8.1 Enterprise hybrid tablet computers, however there is a problem with using Offline Files on them - when synchronising, it responds "Access Denied".
The tablets have Windows 8.1 Enterprise with all the latest updates on them. Staff users have a home folder on the network under \\server\staff\homes\departmentname\username which gets mapped to U: and their My Documents is redirected there. The server is currently
Windows Server 2003 R2 SP2.
We have tried:
Resetting the Offline Files cache using the FormatDatabase registry key
Using Group Policy Objects to force Offline Files synchronisation at logon and logoff
Clearing the local cached copy of the user's profile from the machine and getting them to log back on to recreate it
Setting up Offline Files event logging to the event viewer - this provides no useful information as it only logs disconnect/reconnect and logoff/logon events
Forcing Group Policy update using gpupdate /force
Forcing synchronisation using PowerShell and https://msdn.microsoft.com/en-us/library/windows/desktop/bb309189%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396
As suggested by http://support.microsoft.com/kb/275461 we gave the All Staff security group Read permissions on F:\Staff (which is the one that is shared as \\server\staff) and then blocked inheritance for folders below that
We also checked the following:
The CSC cache has not been relocated
No error 7023 or event 7023 errors relating to Offline Files are present in the event logs
The Offline Files service is running
The OS is already Windows 8.1 Enterprise, so installing the Pro Pack is not applicable
In HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\UserState\UserStateTechnologies\ConfigurationControls all the values are set to 0 and not 1
We do not use System Center Configuration Manager
No errors were found in the Folder Redirection event logs
None of these solved the problem, does anyone have any suggestions?
Here is the error we are seeing:
Thanks,
Dan Jackson (Lead ITServices Technician)
Long Road Sixth Form College
Cambridge, UKHi,
Generally speaking, this problem is most probably occurs at File Server Client.
Firstly, please check the sharing file Sync Settings.
Shared file properties\Sharing\Advanced Sharing\Caching
Also check shared file user list, make sure these problematic user account have full permission.
On the other hand, could you able to access to the shared file directly in Windows Explorer?
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]
Yes, the user can access the shared folder in Windows Explorer. The user has the following permissions:
Traverse Folder/Execute File
List Folder/Read Data
Read Attributes
Read Extended Attributes
Create Files/Write Data
Create Folders/Append Data
Write Attributes
Write Extended Attributes
Delete
Read Permissions
Here is a screenshot of how the Caching settings are set up on the top-level Staff share. -
Anyone use CS3 with Win7 offline file syncing?
I just recently upgraded to the 64-bit version of Windows 7. It has a feature that allows you to cache network files to your hard drive for working on when you are disconnected or have a slow connection with the network (Sync Center) and can be convienient for people like me who telecommute. Most applications seem to work with this, but I've found when trying to save a file from Photoshop CS3 onto this shared drive when its in offline mode results in an error saying the file name was not valid (the file name is valid and can be saved to my harddrive normally). Likewise when I try to save a file to this shared drive in offline mode in InDesign it says that it can't save "under a new name".
Anyone else having this issue or know how to resolve it short of not using the Sync function in Windows?I am suddenly getting that same message. "The file name is not valid" - and up until a few minutes ago, it was a valid name.
But I am using Reader X and Windows 7 -
E61 - PC Suite - Offline File - Sync issues
Hi there,
I wonder if anyone can help please
I've seen another post similar to this, and I've tried the suggestions, but I still have the problems.....
Phone: E61
Phone Software number: (I forget, but Nokia updater said it was the latest version)
PC Suite Version: 6.83.14.1
OS: Win 2000
OS Service Pack: 4
Connection: USB
Email Client: Outlook 2002
Office Client: MS Office 2000
Sync Settings: Update Both Ways
Conflict Settings: err.... Phone wins I think
Synced Items: Calendar, Contacts, Notes, Tasks. No email is synced.
OK, whats happening is this...
When my user connects his phone to the laptop, he gets 3 messages pop up, saying "Your offline folder file could not be configured. C:\Outlook\Outlook.ost"
He clicks OK on each and they go away and all SEEMS to be OK
Then when he looks in his contacts, he has a new seemingly blank contact.
When you open that contact, all the personal details are blank, but in the notes box at the bottom of the General tab, it has a load of info about using Contacts. Not sure if this is from the E61 or from Outlook
Also, my user may edit or delete an appointment or contact from the phone, and when he gets back to the laptop and syncs, the edited/deleted item will reappear as normal on the phone.
Similarly his PA may edit or delete something from his account (PA has delegate access to Outlook) and when the user syncs, the edited/deleted item in Outlook is restored.
He has had issues in the past with the phone, in that for no reason it stopped syncing.
An update to the latest version of PC Suite always sorts that.
Also he has recently had his phone replaced as his originally wouldnt power off properly.
It has had isses before and after the phone was changed.
What I've Tried
Uninstalled and reinstalled PC Suite, the latest version (6.83.14.1) was already on it, but I downloaded a fresh version anyway and reinstalled - No Good
Downloaded and installed Nokia Updater. Checked the software on the phone, and that was the latest version too.
I guess I could set the CONFLICT settings to Always Ask if there are confllicts, but my user assures me that he rarely (if ever) on his phone edits the same item as his PA does on the laptop (well not actually ON my users laptop, but via his Delegate Access)
Do you think this may be because my user has given delegate access to someone else?
We have about 5 of these devices in the company, and this is the ONLY one to have any problems.
As far as I'm aware, none of the other users have given PA's Delegate Access
Not really sure what else to try
Any help and suggestions will be very gratefully received
Many thanks
SteveHi Miksu,
I tried the following....
a new contacts folder, no good
a new calendar, no good
a new outlook profile, no good
wiped all the phone info (contacts etc) and resynced afresh from laptop, no good
I'm still getting the same issues...
1. Random appointments that have been edited, moved, deleted, reappear in their original form
2. "Offline folder file could not be configured" even though when I recreated users profile I created a new file, and also my user is a local admin.
Each time the phone tries to sync this message pops up 3 times, you click OK each time and then it continues
I've also ensured that everyone has full control to the folder containing the offline file, and also shared it out, just incase PC Suite is having trouble with permissions.
One thing I did notice is, that any appt created on the phone is defaulted to a Private Sync, whereas all created on the users laptop and his PA's PC are Public Sync
Havent yet managed to make a connection between Private and Public synced items but maybe this is my problem
I've also set the phone to sync every 15 minutes whilst connected, as thought maybe the info is old by the time the user disconnects and goes offline.
Also, PC Suite is set to Sync in Both Directions. THis is needed as my User does add stuff that he needs syncing to his Outlook profile.
Does anyone think that having a user creating/editing etc on the phone, and also on his laptop, and also a PA editing as a delegate via the PA's own PC is freaking out the phone/PC Suite... too many cooks and all that?
Cheers
SteveMessage Edited by stevepud on 31-May-200710:26 AM -
Offline File Sync - Temp File Issues
I just set up Offline File Sync and I've noticed that temp files (created when saving a file) are in still showing in my local folder. When I try to open one of these files, it says that it doesn't exist on the network location.
It looks like the file is being created and then removed on the network but the local cache doesn't remove the copy properly. I've tried deleting the files as well as deleting temporary files via the Sync Center but neither work.
I'd like to solve this so that the file list doesn't become crazy full with many saves from Excel files.
Can someone please help?As this thread has been quiet for a while, we assume that the issue has been resolved. At this time, we will mark it as ‘Answered’ as the previous
steps should be helpful for many similar scenarios. <o:p></o:p>
If the issue still persists and you want to return to this question, please reply this post directly so we will be notified to follow it up. You
can also choose to unmark the answer as you wish. <o:p></o:p>
In addition, we’d love to hear your feedback about the solution. By sharing your experience you can help other community members facing similar
problems. <o:p></o:p>
Thanks!<o:p></o:p>
Arnav Sharma | http://arnavsharma.net/ Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading
the thread. -
Windows 7 and Offline Files - Sync at logoff
All,
I have set up folder redirection in my organisation (testing purposes) The problem I am facing is Windows 7 will not automatically sync offline files back to the share.
There is a gpo for Windows XP to do this when a user is either is logging off on on. I am trying to accomplish the same when a user logs off and a script can be run to initiate a sync.
Please help.
This is the VBS script I am using, but does nothing when I run it. IS there something missing? A better solution?
' THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
' ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
' THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
' PARTICULAR PURPOSE.
' Copyright (c) Microsoft Corporation. All rights reserved.
' Usage: CscSyncAll.vbs [/Direction:in|out|inout] [/PinNewFiles:1:0] [/Conflicts:local|remote|latest] [/Machine:value] [/User:value] [/Password:value]
' Demonstrates how to sync the entire Offline Files cache.
const cComputerName = "LocalHost"
const cWMINamespace = "root\cimv2"
' Process commandline arguments
strComputerName = WScript.Arguments.Named("Machine")
If Len(strComputerName) = 0 Then strComputerName = cComputerName
strUserID = WScript.Arguments.Named("User")
If Len(strUserID) = 0 Then strUserID = ""
strPassword = WScript.Arguments.Named("Password")
If Len(strPassword) = 0 Then strPassword = ""
' Sync control flags from Win32_OfflineFilesCache.Synchronize
const fFillSparse = &H00000001
const fSyncIn = &H00000002
const fSyncOut = &H00000004
const fPinNewFiles = &H00000008
const fPinLinkTargets = &H00000010
const fPinForUser = &H00000020
const fPinForUser_Policy = &H00000040
const fPinForAll = &H00000080
const fLowPriority = &H00000200
const fAsyncProgress = &H00000400
const fInteractive = &H00000800
const fConsole = &H00001000
const fSkipSuspendedDirs = &H00002000
const fBackground = &H00010000
const fCrKeepLocal = &H10000000
const fCrKeepRemote = &H20000000
const fCrKeepLatest = &H30000000
const wbemFlagSendStatus = &H00000080
SyncControlFlags = fSyncIn + _
fSyncOut + _
fPinNewFiles + _
fPinForUser + _
fConsole + _
fInteractive
strDirection = WScript.Arguments.Named("Direction")
If Len(strDirection) <> 0 Then
if LCase(strDirection) = "in" Then
SyncControlFlags = SyncControlFlags - fSyncOut
Elseif LCase(strDirection) = "out" Then
SyncControlFlags = SyncControlFlags - fSyncIn
Elseif LCase(strDirection) = "inout" Then
' Do nothing. Flags already indicate in/out
Else
Wscript.Echo "Invalid direction value [" & strDirection & "]"
Err.Raise 507 ' "an exception occured" error
End if
End if
strPinNewFiles = WScript.Arguments.Named("PinNewFiles")
If Len(strPinNewFiles) <> 0 And strPinNewFiles = "0" Then
SyncControlFlags = SyncControlFlags - fPinNewFiles
End if
strConflicts = WScript.Arguments.Named("Conflicts")
If Len(strConflicts) <> 0 Then
If LCase(strConflicts) = "local" Then
SyncControlflags = SyncControlFlags + fCrKeepLocal
Elseif LCase(strConflicts) = "remote" Then
SyncControlFlags = SyncControlFlags + fCrKeepRemote
Elseif LCase(strConflicts) = "latest" Then
SyncControlFlags = SyncControlFlags + fCrKeepLatest
End if
End if
Set objWMILocator = WScript.CreateObject("WbemScripting.SWbemLocator")
Set objWMIServices = objWMILocator.ConnectServer(strComputerName, _
cWMINameSpace, _
strUserID, _
strPassword)
Set objCache = objWMIServices.Get("Win32_OfflineFilesCache=@")
Set objParams = objCache.Methods_("Synchronize").InParameters.SpawnInstance_
Set objSink = WScript.CreateObject("WbemScripting.SWbemSink", "SINK_")
Set objItemInstances = objWMIServices.InstancesOf("Win32_OfflineFilesItem")
' Set up the API arguments
Dim ItemPaths(0)
objParams.Paths = ItemPaths
objParams.Flags = SyncControlFlags
' Constants for cache item types
const cFile = 0
const cDirectory = 1
const cShare = 2
const cServer = 3
' Execute the sync action on each share in the Offline Files cache.
For Each objItem in objItemInstances
If cShare = objItem.ItemType Then
ItemPaths(0) = objItem.ItemPath
objParams.Paths = ItemPaths
objWMIServices.ExecMethodAsync objSink, "Win32_OfflineFilesCache", "Synchronize", objParams, wbemFlagSendStatus
End If
Next
' Loop until we receive an OnCompleted event
bDone = False
While Not bDone
wscript.sleep 1000
Wend
Sub SINK_OnProgress(UpperBound, Current, Message, objContext)
DIM PART_REASON, PART_RESULT, PART_RESULTMSG, PART_PATH
DIM REASON_BEGIN, REASON_END, REASON_ITEMBEGIN, REASON_ITEMRESULT
DIM Reasons(3)
' The message is composed as follows:
' <reason>:<result>:<result msg>:<path>
' <reason>
' Integer indicates reason for progress callback.
' Values are:
' 0 - "Begin" overall operation
' 1 - "End" overall operation
' 2 - "Begin Item" operation
' 3 - "Item result"
' <result>
' Integer result code; HRESULT.
' <result msg>
' Text describing the result. In most cases this is translated using
' the Win32 function FormatMessage. In some cases a more descriptive
' message is provided that is better aligned with Offline Files.
' <path>
' UNC path string associated with the progress notifcation. This is
' empty for the "Begin" and "End" notifications.
' Define indexes of the various parts in the message.
PART_REASON = 0
PART_RESULT = 1
PART_RESULTMSG = 2
PART_PATH = 3
' The reason codes present in the <reason> part.
REASON_BEGIN = 0
REASON_END = 1
REASON_ITEMBEGIN = 2
REASON_ITEMRESULT = 3
' split the message into the 4 parts and extract those parts.
Parts = Split(Message, ":", -1, 1)
Reason = CInt(Parts(PART_REASON))
Path = Parts(PART_PATH)
Result = CLng(Parts(PART_RESULT))
ResultMsg = Parts(PART_RESULTMSG)
Select Case Reason
Case REASON_ITEMRESULT
WScript.Echo Path
if 0 <> Result then
Wscript.Echo " Error: " & Hex(Result) & " " & ResultMsg
end if
Case REASON_END
if 0 <> Result then
Wscript.Echo "Error: " & Hex(Result) & " " & ResultMsg
end if
End Select
End Sub
' Called when the operation is complete.
Sub SINK_OnCompleted(HResult, objLastError, objContext)
bDone = True
End Sub
*This code was pulled from: http://blogs.technet.com/b/filecab/archive/2007/04/26/cscsyncall-vbs-sync-the-entire-offline-files-cache.aspxHi,
Please know that Offline Files in Windows 7 uses Bitmap Differential Transfer. Bitmap Differential Transfer tracks which blocks of a file in the local cache are modified while you are working offline and then sends only those blocks to the server. In Windows
XP, Offline Files copies the entire file from the local cache to the server, even if only a small part of the file was modified while offline.
How the synchronization in Windows 7 Offline Files works
http://blogs.technet.com/b/netro/archive/2010/04/09/how-the-synchronization-in-windows-7-offline-files-works.aspx
That should be the cause of the issue that your script didn't work.
Considering that the issue should be related to the script, I suggest to post the question on Script Center forum for further help.
Script Center forum:
http://social.technet.microsoft.com/Forums/scriptcenter/en-US/home
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us.
Thanks for understanding.
Kate Li
TechNet Community Support -
2008 R2/ Win7 Offline Files Sync causing High Load on server
Hi Everyone,
I have recently been investigating extremely high CPU Usage from the System Process on my company's main File Cluster.
We managed to track SRV2.sys Threads causing high CPU load within the system process, but was having issues identifying why this was the case.
As per Microsoft's direction via support call, we have installed the latest SRV2.sys Hotfixes, but this does not appear to have allivated the issue we are experiencing. We have also added more CPU and Memory into both nodes, which has not helped either.
We have since managed to create a system dump and is being sent to MS Support for analysis.
I have noticed the following that appears to happen on our cluster:
Whenever our CAD/Design department run certain functions within their apps running on a windows 7 client (apps include MicroStation, Revit, AutoCAD etc) we see a massive spike and flatline of the system process.
We found several users with Windows 7 clients that have Configured Offline File to sync an entire Network Volume (some volumes are 2TB Plus, so would never fit on a users computer anyway, i was quite shocked when I found this). How we spotted this was through
Resource Monitor, the System Process was trolling through all the folders and files in a given volume (it was "reading every single folder). Now, while this was the system process, we could identify the user by using the Open Files view in Server Manager's
Share and Storage Management tool.
I have done a fair bit of research and found that a lot of CAD/Drawing applications in the market have issues with using SMB2 (srv2.sys). When reviewing the products that we use, I noticed that a lot of these products actually recommended disabling SMB2
and reverting to SMB1 on File Server and/or the clients.
I have gone down the path of disabling SMB2 on all Windows 7 clients that have these CAD Applications installed to assist with lowering the load (our other options are to potentially shift the CAD Volumes off our main file cluster to further isolation these
performance issues we have been experiencing.) We will be testing this again tomorrow to confirm that the issue is resolved when mass amounts of CAD users access data on these volumes via their CAD Application.
We only noticed the issue with Offline Files today with trying to sync an ENTIRE Volume. My questions are:
Should Offline File sync's really cause this much load on a File Server?
Would the the size of the volume the sync is trying to complete create this additional load within the system process?
What is the industry considered "Best Practice" regarding Offline Files setup for Volumes which could have up to 1000+ users attached? (My personal opinion is that Offline Files should only be sync of user "Personal/Home" Folders
as they users themselves have a 1 to 1 relationship with this data.)
Is there an easier way to identify what users have Offline Files enabled and "actually being used" (from my understanding, Sync Center and Offline Files are enabled by default, but you obviously have to add the folders/drives you wish to sync)?
If I disable the ability for Offline Files on the volumes, what will the user experience be when/if they try to sync their offline files config after this has been disabled on the volume?
Hoping for some guidance regarding this setup with Offline Files.
Thanks in Advance!
SimonHi Everyone,
Just thought I would give an update on this.
While we're still deploying http://support.microsoft.com/kb/2733363/en-us to
the remainder of our Windows 7 SP1 fleet, according to some Network Traces and XPerf that were sent to MS Support, it looks as though the issu with the Offline Files is now resolved.
However, we are still having some issues with High CPU with the System Process in particular. Upon review of the traces, they have found a lot of ABE related traffic, leading them to believe that the issue may also be caused by ABE Access on our File Cluster.
We already have the required hotfix for ABE on 2008 R2 installed (please see
http://support.microsoft.com/kb/2732618/en-us), although we have it set to a certain value that MS believe may be too high. Our current value is set to "5", as that is the lowest level of any type of permission is set (i.e. where the lowest level of inheritance
is broken).
I think I will mark this as resolved regarding the Offline Files issue (as it did resolve the problem with the Offline Files)...
Fingers crossed we can identify the rest of the high load within the System Process!!! -
How do I delete the synced offline files from my iPhone?
Hey people! I just unchecked "offline" for all my playlists on my iPhone to free up some memory. However the usage of the Spotify-App is still shown with 1GB. Is there any way to get rid of the cached songs besides reinstalling the app? Regards, Marius
Peter wrote:
Spotify are currently collecting information about this, since in theory that is what should happen
No one from Spotify has posted since Meredith asked for user info regarding the bug. Generally that may not be so surprising as it has only been a couple of months. Howerver, it is not as it was news to the Staff. This thread:Help-iOS-iPhone-iPad-iPod-Touch/How-do-I-delete-the-synced-offline-files-from-my-iPhone is from spring 2012.
My point is that I think it would be good if everyone experiencing this problem made some noise.
Regards,
Martin -
Best way to move Onenote files from offline file location.
We have a majority of our users now on Win 7 using Office 2010.
We have redirected folders with offline files syncing Included in this location is the OneNote files.
After starting to investigate Win 8.1 Update 1 and office 2013. We noticed the message OneNote 2013 throws up about issues with having OneNote files included in the Offline files location (The first version to offer this message). And have started to notice
issues with users OneNote files corrupting etc.
Almost certainly from the Offline files syncing and OneNote's own in built cache\syncing abilities.
We investigated excluding *.one files from offline syncing but quickly eliminated this because users then wont be able to create any further *.one files in this location.
My two questions are-
1) How bad could the issues with corruption of OneNote files get if they stay in their current location? We are concerned the more our users get to know how useful OneNote is the more issues we will get.
2) Is there an easy way to move the OneNote files to another network location for multiple users with least disruption to them as possible?To answer your questions, check below links:
http://support.microsoft.com/kb/2859902
http://blogs.msdn.com/b/david_rasmussen/archive/2007/12/10/onenote-shared-notebooks-options-and-troubleshooting-part-1-windows-file-shares.aspx
To move the notebook, take one of the following actions:
From On the File menu, click Share, and then click
Copy this notebook to OneDrive (formerly SkyDrive) or SharePoint.
Right-click the notebook, click Properties, and then click
Change Location.
Flynn -
Performance Issue: Wait event "log file sync" and "Execute to Parse %"
In one of our test environments users are complaining about slow response.
In statspack report folowing are the top-5 wait events
Event Waits Time (cs) Wt Time
log file parallel write 1,046 988 37.71
log file sync 775 774 29.54
db file scattered read 4,946 248 9.47
db file parallel write 66 248 9.47
control file parallel write 188 152 5.80
And after runing the same application 4 times, we are geting Execute to Parse % = 0.10. Cursor sharing is forced and query rewrite is enabled
When I view v$sql, following command is parsed frequently
EXECUTIONS PARSE_CALLS
SQL_TEXT
93380 93380
select SEQ_ORDO_PRC.nextval from DUAL
Please suggest what should be the method to troubleshoot this and if I need to check some more information
Regards,
Sudhanshu BhandariWell, of course, you probably can't eliminate this sort of thing entirely: a setup such as yours is inevitably a compromise. What you can do is make sure your log buffer is a good size (say 10MB or so); that your redo logs are large (at least 100MB each, and preferably large enough to hold one hour or so of redo produced at the busiest time for your database without filling up); and finally set ARCHIVE_LAG_TARGET to something like 1800 seconds or more to ensure a regular, routine, predictable log switch.
It won't cure every ill, but that sort of setup often means the redo subsystem ceases to be a regular driver of foreground waits. -
Log file sync top event during performance test -av 36ms
Hi,
During the performance test for our product before deployment into product i see "log file sync" on top with Avg wait (ms) being 36 which i feel is too high.
Avg
wait % DB
Event Waits Time(s) (ms) time Wait Class
log file sync 208,327 7,406 36 46.6 Commit
direct path write 646,833 3,604 6 22.7 User I/O
DB CPU 1,599 10.1
direct path read temp 1,321,596 619 0 3.9 User I/O
log buffer space 4,161 558 134 3.5 ConfiguratAlthough testers are not complaining about the performance of the appplication , we ,DBAs, are expected to be proactive about the any bad signals from DB.
I am not able to figure out why "log file sync" is having such slow response.
Below is the snapshot from the load profile.
Snap Id Snap Time Sessions Curs/Sess
Begin Snap: 108127 16-May-13 20:15:22 105 6.5
End Snap: 108140 16-May-13 23:30:29 156 8.9
Elapsed: 195.11 (mins)
DB Time: 265.09 (mins)
Cache Sizes Begin End
~~~~~~~~~~~ ---------- ----------
Buffer Cache: 1,168M 1,136M Std Block Size: 8K
Shared Pool Size: 1,120M 1,168M Log Buffer: 16,640K
Load Profile Per Second Per Transaction Per Exec Per Call
~~~~~~~~~~~~ --------------- --------------- ---------- ----------
DB Time(s): 1.4 0.1 0.02 0.01
DB CPU(s): 0.1 0.0 0.00 0.00
Redo size: 607,512.1 33,092.1
Logical reads: 3,900.4 212.5
Block changes: 1,381.4 75.3
Physical reads: 134.5 7.3
Physical writes: 134.0 7.3
User calls: 145.5 7.9
Parses: 24.6 1.3
Hard parses: 7.9 0.4
W/A MB processed: 915,418.7 49,864.2
Logons: 0.1 0.0
Executes: 85.2 4.6
Rollbacks: 0.0 0.0
Transactions: 18.4Some of the top background wait events:
^LBackground Wait Events DB/Inst: Snaps: 108127-108140
-> ordered by wait time desc, waits desc (idle events last)
-> Only events with Total Wait Time (s) >= .001 are shown
-> %Timeouts: value of 0 indicates value was < .5%. Value of null is truly 0
Avg
%Time Total Wait wait Waits % bg
Event Waits -outs Time (s) (ms) /txn time
log file parallel write 208,563 0 2,528 12 1.0 66.4
db file parallel write 4,264 0 785 184 0.0 20.6
Backup: sbtbackup 1 0 516 516177 0.0 13.6
control file parallel writ 4,436 0 97 22 0.0 2.6
log file sequential read 6,922 0 95 14 0.0 2.5
Log archive I/O 6,820 0 48 7 0.0 1.3
os thread startup 432 0 26 60 0.0 .7
Backup: sbtclose2 1 0 10 10094 0.0 .3
db file sequential read 2,585 0 8 3 0.0 .2
db file single write 560 0 3 6 0.0 .1
log file sync 28 0 1 53 0.0 .0
control file sequential re 36,326 0 1 0 0.2 .0
log file switch completion 4 0 1 207 0.0 .0
buffer busy waits 5 0 1 116 0.0 .0
LGWR wait for redo copy 924 0 1 1 0.0 .0
log file single write 56 0 1 9 0.0 .0
Backup: sbtinfo2 1 0 1 500 0.0 .0During a previous perf test , things didnt look this bad for "log file sync. Few sections from the comparision report(awrddprt.sql)
{code}
Workload Comparison
~~~~~~~~~~~~~~~~~~~ 1st Per Sec 2nd Per Sec %Diff 1st Per Txn 2nd Per Txn %Diff
DB time: 0.78 1.36 74.36 0.02 0.07 250.00
CPU time: 0.18 0.14 -22.22 0.00 0.01 100.00
Redo size: 573,678.11 607,512.05 5.90 15,101.84 33,092.08 119.13
Logical reads: 4,374.04 3,900.38 -10.83 115.14 212.46 84.52
Block changes: 1,593.38 1,381.41 -13.30 41.95 75.25 79.38
Physical reads: 76.44 134.54 76.01 2.01 7.33 264.68
Physical writes: 110.43 134.00 21.34 2.91 7.30 150.86
User calls: 197.62 145.46 -26.39 5.20 7.92 52.31
Parses: 7.28 24.55 237.23 0.19 1.34 605.26
Hard parses: 0.00 7.88 100.00 0.00 0.43 100.00
Sorts: 3.88 4.90 26.29 0.10 0.27 170.00
Logons: 0.09 0.08 -11.11 0.00 0.00 0.00
Executes: 126.69 85.19 -32.76 3.34 4.64 38.92
Transactions: 37.99 18.36 -51.67
First Second Diff
1st 2nd
Event Wait Class Waits Time(s) Avg Time(ms) %DB time Event Wait Class Waits Time(s) Avg Time
(ms) %DB time
SQL*Net more data from client Network 2,133,486 1,270.7 0.6 61.24 log file sync Commit 208,355 7,407.6
35.6 46.57
CPU time N/A 487.1 N/A 23.48 direct path write User I/O 646,849 3,604.7
5.6 22.66
log file sync Commit 99,459 129.5 1.3 6.24 log file parallel write System I/O 208,564 2,528.4
12.1 15.90
log file parallel write System I/O 100,732 126.6 1.3 6.10 CPU time N/A 1,599.3
N/A 10.06
SQL*Net more data to client Network 451,810 103.1 0.2 4.97 db file parallel write System I/O 4,264 784.7 1
84.0 4.93
-direct path write User I/O 121,044 52.5 0.4 2.53 -SQL*Net more data from client Network 7,407,435 279.7
0.0 1.76
-db file parallel write System I/O 986 22.8 23.1 1.10 -SQL*Net more data to client Network 2,714,916 64.6
0.0 0.41
{code}
*To sum it sup:
1. Why is the IO response getting such an hit during the new perf test? Please suggest*
2. Does the number of DB writer impact "log file sync" wait event? We have only one DB writer as the number of cpu on the host is only 4
{code}
select *from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
PL/SQL Release 11.1.0.7.0 - Production
CORE 11.1.0.7.0 Production
TNS for HPUX: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
{code}
Please let me know if you would like to see any other stats.
Edited by: Kunwar on May 18, 2013 2:20 PM1. A snapshot interval of 3 hours always generates meaningless results
Below are some details from the 1 hour interval AWR report.
Platform CPUs Cores Sockets Memory(GB)
HP-UX IA (64-bit) 4 4 3 31.95
Snap Id Snap Time Sessions Curs/Sess
Begin Snap: 108129 16-May-13 20:45:32 140 8.0
End Snap: 108133 16-May-13 21:45:53 150 8.8
Elapsed: 60.35 (mins)
DB Time: 140.49 (mins)
Cache Sizes Begin End
~~~~~~~~~~~ ---------- ----------
Buffer Cache: 1,168M 1,168M Std Block Size: 8K
Shared Pool Size: 1,120M 1,120M Log Buffer: 16,640K
Load Profile Per Second Per Transaction Per Exec Per Call
~~~~~~~~~~~~ --------------- --------------- ---------- ----------
DB Time(s): 2.3 0.1 0.03 0.01
DB CPU(s): 0.1 0.0 0.00 0.00
Redo size: 719,553.5 34,374.6
Logical reads: 4,017.4 191.9
Block changes: 1,521.1 72.7
Physical reads: 136.9 6.5
Physical writes: 158.3 7.6
User calls: 167.0 8.0
Parses: 25.8 1.2
Hard parses: 8.9 0.4
W/A MB processed: 406,220.0 19,406.0
Logons: 0.1 0.0
Executes: 88.4 4.2
Rollbacks: 0.0 0.0
Transactions: 20.9
Top 5 Timed Foreground Events
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Avg
wait % DB
Event Waits Time(s) (ms) time Wait Class
log file sync 73,761 6,740 91 80.0 Commit
log buffer space 3,581 541 151 6.4 Configurat
DB CPU 348 4.1
direct path write 238,962 241 1 2.9 User I/O
direct path read temp 487,874 174 0 2.1 User I/O
Background Wait Events DB/Inst: Snaps: 108129-108133
-> ordered by wait time desc, waits desc (idle events last)
-> Only events with Total Wait Time (s) >= .001 are shown
-> %Timeouts: value of 0 indicates value was < .5%. Value of null is truly 0
Avg
%Time Total Wait wait Waits % bg
Event Waits -outs Time (s) (ms) /txn time
log file parallel write 61,049 0 1,891 31 0.8 87.8
db file parallel write 1,590 0 251 158 0.0 11.6
control file parallel writ 1,372 0 56 41 0.0 2.6
log file sequential read 2,473 0 50 20 0.0 2.3
Log archive I/O 2,436 0 20 8 0.0 .9
os thread startup 135 0 8 60 0.0 .4
db file sequential read 668 0 4 6 0.0 .2
db file single write 200 0 2 9 0.0 .1
log file sync 8 0 1 152 0.0 .1
log file single write 20 0 0 21 0.0 .0
control file sequential re 11,218 0 0 0 0.1 .0
buffer busy waits 2 0 0 161 0.0 .0
direct path write 6 0 0 37 0.0 .0
LGWR wait for redo copy 380 0 0 0 0.0 .0
log buffer space 1 0 0 89 0.0 .0
latch: cache buffers lru c 3 0 0 1 0.0 .0 2 The log file sync is a result of commit --> you are committing too often, maybe even every individual record.
Thanks for explanation. +Actually my question is WHY is it so slow (avg wait of 91ms)+3 Your IO subsystem hosting the online redo log files can be a limiting factor.
We don't know anything about your online redo log configuration
Below is my redo log configuration.
GROUP# STATUS TYPE MEMBER IS_
1 ONLINE /oradata/fs01/PERFDB1/redo_1a.log NO
1 ONLINE /oradata/fs02/PERFDB1/redo_1b.log NO
2 ONLINE /oradata/fs01/PERFDB1/redo_2a.log NO
2 ONLINE /oradata/fs02/PERFDB1/redo_2b.log NO
3 ONLINE /oradata/fs01/PERFDB1/redo_3a.log NO
3 ONLINE /oradata/fs02/PERFDB1/redo_3b.log NO
6 rows selected.
04:13:14 perf_monitor@PERFDB1> col FIRST_CHANGE# for 999999999999999999
04:13:26 perf_monitor@PERFDB1> select *from v$log;
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIME
1 1 40689 524288000 2 YES INACTIVE 13026185905545 18-MAY-13 01:00
2 1 40690 524288000 2 YES INACTIVE 13026185931010 18-MAY-13 03:32
3 1 40691 524288000 2 NO CURRENT 13026185933550 18-MAY-13 04:00Edited by: Kunwar on May 18, 2013 2:46 PM -
45 min long session of log file sync waits between 5000 and 20000 ms
45 min long log file sync waits between 5000 and 20000 ms
Encountering a rather unusual performance issue. Once every 4 hours I am seeing a 45 minute long log file sync wait event being reported using Spotlight on Oracle. For the first 30 minutes the event wait is for approx 5000 ms, followed by an increase to around 20000 ms for the next 15 min before rapidly dropping off and normal operation continues for the next 3 hours and 15 minutes before the cycle repeats itself. The issue appears to maintain it's schedule independently of restarting the database. Statspack reports do not show an increase in commits or executions or any new sql running during the time the issue is occuring. We have two production environments both running identicle applications with similar usage and we do not see the issue on the other system. I am leaning towards this being a hardware issue, but the 4 hour interval regardless of load on the database has me baffled. If it were a disk or controller cache issue one would expect to see the interval change with database load.
I cycle my redo logs and archive them just fine with log file switches every 15-20 minutes. Even during this unusally long and high session of log file sync waits I can see that the redo log files are still switching and are being archived.
The redo logs are on a RAID 10, we have 4 redo logs at 1 GB each.
I've run statspack reports on hourly intervals around this event:
Top 5 Wait Events
~~~~~~~~~~~~~~~~~ Wait % Total
Event Waits Time (cs) Wt Time
log file sync 756,729 2,538,034 88.47
db file sequential read 208,851 153,276 5.34
log file parallel write 636,648 129,981 4.53
enqueue 810 21,423 .75
log file sequential read 65,540 14,480 .50
And here is a sample while not encountering the issue:
Top 5 Wait Events
~~~~~~~~~~~~~~~~~ Wait % Total
Event Waits Time (cs) Wt Time
log file sync 953,037 195,513 53.43
log file parallel write 875,783 83,119 22.72
db file sequential read 221,815 63,944 17.48
log file sequential read 98,310 18,848 5.15
db file scattered read 67,584 2,427 .66
Yes I know I am already tight on I/O for my redo even during normal operations yet, my redo and archiving works just fine for 3 hours and 15 minutes (11 to 15 log file switches). These normal switches result in a log file sync wait of about 5000 ms for about 45 seconds while the 1GB redo log is being written and then archived.
I welcome any and all feedback.
Message was edited by:
acyoung1
Message was edited by:
acyoung1Lee,
log_buffer = 1048576 we use a standard of 1 MB for our buffer cache, we've not altered the setting. It is my understanding that Oracle typically recommends that you not exceed 1MB for the log_buffer, stating that a larger buffer normally does not increase performance.
I would agree that tuning the log_buffer parameter may be a place to consider; however, this issue last for ~45 minutes once every 4 hours regardless of database load. So for 3 hours and 15 minutes during both peak usage and low usage the buffer cache, redo log and archival processes run just fine.
A bit more information from statspack reports:
Here is a sample while the issue is occuring.
Snap Id Snap Time Sessions
Begin Snap: 661 24-Mar-06 12:45:08 87
End Snap: 671 24-Mar-06 13:41:29 87
Elapsed: 56.35 (mins)
Cache Sizes
~~~~~~~~~~~
db_block_buffers: 196608 log_buffer: 1048576
db_block_size: 8192 shared_pool_size: 67108864
Load Profile
~~~~~~~~~~~~ Per Second Per Transaction
Redo size: 615,141.44 2,780.83
Logical reads: 13,241.59 59.86
Block changes: 2,255.51 10.20
Physical reads: 144.56 0.65
Physical writes: 61.56 0.28
User calls: 1,318.50 5.96
Parses: 210.25 0.95
Hard parses: 8.31 0.04
Sorts: 16.97 0.08
Logons: 0.14 0.00
Executes: 574.32 2.60
Transactions: 221.21
% Blocks changed per Read: 17.03 Recursive Call %: 26.09
Rollback per transaction %: 0.03 Rows per Sort: 46.87
Instance Efficiency Percentages (Target 100%)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 99.99 Redo NoWait %: 100.00
Buffer Hit %: 98.91 In-memory Sort %: 100.00
Library Hit %: 98.89 Soft Parse %: 96.05
Execute to Parse %: 63.39 Latch Hit %: 99.87
Parse CPU to Parse Elapsd %: 90.05 % Non-Parse CPU: 85.05
Shared Pool Statistics Begin End
Memory Usage %: 89.96 92.20
% SQL with executions>1: 76.39 67.76
% Memory for SQL w/exec>1: 72.53 63.71
Top 5 Wait Events
~~~~~~~~~~~~~~~~~ Wait % Total
Event Waits Time (cs) Wt Time
log file sync 756,729 2,538,034 88.47
db file sequential read 208,851 153,276 5.34
log file parallel write 636,648 129,981 4.53
enqueue 810 21,423 .75
log file sequential read 65,540 14,480 .50
And this is a sample during "normal" operation.
Snap Id Snap Time Sessions
Begin Snap: 671 24-Mar-06 13:41:29 88
End Snap: 681 24-Mar-06 14:42:57 88
Elapsed: 61.47 (mins)
Cache Sizes
~~~~~~~~~~~
db_block_buffers: 196608 log_buffer: 1048576
db_block_size: 8192 shared_pool_size: 67108864
Load Profile
~~~~~~~~~~~~ Per Second Per Transaction
Redo size: 716,776.44 2,787.81
Logical reads: 13,154.06 51.16
Block changes: 2,627.16 10.22
Physical reads: 129.47 0.50
Physical writes: 67.97 0.26
User calls: 1,493.74 5.81
Parses: 243.45 0.95
Hard parses: 9.23 0.04
Sorts: 18.27 0.07
Logons: 0.16 0.00
Executes: 664.05 2.58
Transactions: 257.11
% Blocks changed per Read: 19.97 Recursive Call %: 25.87
Rollback per transaction %: 0.02 Rows per Sort: 46.85
Instance Efficiency Percentages (Target 100%)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 99.99 Redo NoWait %: 100.00
Buffer Hit %: 99.02 In-memory Sort %: 100.00
Library Hit %: 98.95 Soft Parse %: 96.21
Execute to Parse %: 63.34 Latch Hit %: 99.90
Parse CPU to Parse Elapsd %: 96.60 % Non-Parse CPU: 84.06
Shared Pool Statistics Begin End
Memory Usage %: 92.20 88.73
% SQL with executions>1: 67.76 75.40
% Memory for SQL w/exec>1: 63.71 68.28
Top 5 Wait Events
~~~~~~~~~~~~~~~~~ Wait % Total
Event Waits Time (cs) Wt Time
log file sync 953,037 195,513 53.43
log file parallel write 875,783 83,119 22.72
db file sequential read 221,815 63,944 17.48
log file sequential read 98,310 18,848 5.15
db file scattered read 67,584 2,427 .66 -
Can a file to be shared via iCloud be password protected?
Can a file to be shared via iCloud be password-protected? I used to do this with files shared between Windows & my Blackberry using Documents To Go.
Nobody can predict what OSX next can or can't : It is a Beta and thus everything can change .
Concerning Lion and iOS5 :
the notes faciltiy in iOS5 devices is synced via iCloud, yes : your notes will be received in your icloud email account on the Mac. Just make sure you enable mail and notes in icloud panel on both ios and lion.
"Sticky Notes" : No Syncing available ( and I doubt Apple cares much for that : the app is a relict from OS classic ) . -
I am trying to stream music from my iMac using iTunes music files to my Cocktail Audio X10 music streamer. I have allowed my files to be shared the X10 sees the files but when I try to accsess them it gives me the message files not mounted. Please help?
No, I have the music I want to move from the laptop to the phone selected. Then I go under file, devices, and try to click sync but it is not available to click.
-
Hi all,
We are using Oracle 9.2.0.4 on SUSE Linux 10. In Our statspack report one of the Top timed event is log file sysnc we are getting.We are not using any storage.IS this a bug of 9.2.0.4 or what is the solution of it
STATSPACK report for
DB Name DB Id Instance Inst Num Release Cluster Host
ai 1495142514 ai 1 9.2.0.4.0 NO ai-oracle
Snap Id Snap Time Sessions Curs/Sess Comment
Begin Snap: 241 03-Sep-09 12:17:17 255 63.2
End Snap: 242 03-Sep-09 12:48:50 257 63.4
Elapsed: 31.55 (mins)
Cache Sizes (end)
~~~~~~~~~~~~~~~~~
Buffer Cache: 1,280M Std Block Size: 8K
Shared Pool Size: 160M Log Buffer: 1,024K
Load Profile
~~~~~~~~~~~~ Per Second Per Transaction
Redo size: 7,881.17 8,673.87
Logical reads: 14,016.10 15,425.86
Block changes: 44.55 49.04
Physical reads: 3,421.71 3,765.87
Physical writes: 8.97 9.88
User calls: 254.50 280.10
Parses: 27.08 29.81
Hard parses: 0.46 0.50
Sorts: 8.54 9.40
Logons: 0.12 0.13
Executes: 139.47 153.50
Transactions: 0.91
% Blocks changed per Read: 0.32 Recursive Call %: 42.75
Rollback per transaction %: 13.66 Rows per Sort: 120.84
Instance Efficiency Percentages (Target 100%)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 100.00 Redo NoWait %: 100.00
Buffer Hit %: 75.59 In-memory Sort %: 99.99
Library Hit %: 99.55 Soft Parse %: 98.31
Execute to Parse %: 80.58 Latch Hit %: 100.00
Parse CPU to Parse Elapsd %: 67.17 % Non-Parse CPU: 99.10
Shared Pool Statistics Begin End
Memory Usage %: 95.32 96.78
% SQL with executions>1: 74.91 74.37
% Memory for SQL w/exec>1: 68.59 69.14
Top 5 Timed Events
~~~~~~~~~~~~~~~~~~ % Total
Event Waits Time (s) Ela Time
log file sync 11,558 10,488 67.52
db file sequential read 611,828 3,214 20.69
control file parallel write 436 541 3.48
buffer busy waits 626 522 3.36
CPU time 395 2.54
^LWait Events for DB: ai Instance: ai Snaps: 241 -242
-> s - second
-> cs - centisecond - 100th of a second
-> ms - millisecond - 1000th of a second
-> us - microsecond - 1000000th of a second
-> ordered by wait time desc, waits desc (idle events last)
Avg
Total Wait wait Waits
Event Waits Timeouts Time (s) (ms) /txn
log file sync 11,558 9,981 10,488 907 6.7
db file sequential read 611,828 0 3,214 5 355.7
control file parallel write 436 0 541 1241 0.3
buffer busy waits 626 518 522 834 0.4
control file sequential read 661 0 159 241 0.4
BFILE read 734 0 110 151 0.4
db file scattered read 595,462 0 81 0 346.2
enqueue 15 5 19 1266 0.0
latch free 109 22 1 8 0.1
db file parallel read 102 0 1 6 0.1
log file parallel write 1,498 1,497 1 0 0.9
BFILE get length 166 0 0 3 0.1
SQL*Net break/reset to clien 199 0 0 1 0.1
SQL*Net more data to client 5,139 0 0 0 3.0
BFILE open 76 0 0 0 0.0
row cache lock 5 0 0 0 0.0
BFILE internal seek 734 0 0 0 0.4
BFILE closure 76 0 0 0 0.0
db file parallel write 173 0 0 0 0.1
direct path read 18 0 0 0 0.0
direct path write 4 0 0 0 0.0
SQL*Net message from client 480,888 0 284,247 591 279.6
virtual circuit status 64 64 1,861 29072 0.0
wakeup time manager 59 59 1,757 29781 0.0Your elapsed time is roughly 2000 seconds (31:55 rounded up) - and your log file sync time is roughly 10,000 - which is 5 seconds per second for the duration. Alternatively your session count is roughly 250 at start and end of snapshot - so if we assume that the number of sessions was steady for the duration, every session has suffered 40 seconds of log file sync in the interval. You've recorded roughly 1,500 transactions in the interval (0.91 per second, of which about 13% were rollbacks) - so your log file sync time has averaged more than 6.5 seconds per commit.
Whichever way you look at it, this suggests that either the log file sync figures are wrong, or you have had a temporary hardware failure. Given that you've had a few buffer busy waits and control file write waits of about 900 m/s each, the hardware failure seems likely.
Check log file parallel write times to see if this helps to confirm the hypothesis. (Unfortunately some platforms don't report liog file parallel wriite times correctly for earlier versions of 9.2 - so this may not help.)
You also have 15 enqueue waits averaging 1.2 seconds - check the enqueue stats section of the report to see which enqueue this was: if it was (e.g. CF - control file) then this also helps to confirm the hardware hypothesis.
It's possible that you had a couple of hardware resets or something of that sort in the interval that stopped your system quite dramatically for a minute or two.
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk
"Science is more than a body of knowledge; it is a way of thinking"
Carl Sagan
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