Poor Reorganization of the Thumbnail Cache

After the repeated requests I foolishly discovered why I had been avoiding the prompt to reorganizine my thumbnail cache. It placed the pictures in folders according to the Year shot and the Roll imported, when they had been well organized by Years, Months and Days.
With the new file organization, finding the right photo through Finder to export for other applications and emails is now more time consuming because the Rolls are not organized by months and some contain multiple days.
Can anybody help me to reset the file organization of the thumbnail cache back to Months and Days with out having to reinstall all of the fotos? Shouldn't there be an option for import organization?
Many thanks, B
Powerbook G4 Mac OS X (10.3.9)
Powerbook G4 Mac OS X (10.3.9)

Esheki:
Welcome to the Apple Discussions. To email a photo(s) all you need to do is select them in iPhoto and then click on the Email button at the bottom. You do not have to find the file via the Finder to add to an email. If you want to use an photo in another application you can either drag the photo from the iPhoto window into the open window of the other application to add it. Or drag it to the desktop from iPhoto and then add it to the other application from there. iPhoto is designed so the user does not, and should not, have to go rummaging around in the iPhoto Library folder for a file via the Finder. See Don't tamper with files in the iPhoto Library folder from the Finder.
There is no way to reset the folder system back to the previous iPhoto 5 system unless you want to start over with iPhoto 5 and re-import your photos back in.

Similar Messages

Poor performance of the BDB cache

I'm experiencing incredibly poor performance of the BDB cache and wanted to share my experience, in case anybody has any suggestions.
Overview
Stone Steps maintains a fork of a web log analysis tool - the Webalizer (http://www.stonesteps.ca/projects/webalizer/). One of the problems with the Webalizer is that it maintains all data (i.e. URLs, search strings, IP addresses, etc) in memory, which puts a cap on the maximum size of the data set that can be analyzed. Naturally, BDB was picked as the fastest database to maintain analyzed data on disk set and produce reports by querying the database. Unfortunately, once the database grows beyond the cache size, overall performance goes down the drain.
Note that the version of SSW available for download does not support BDB in the way described below. I can make the source available for you, however, if you find your own large log files to analyze.
The Database
Stone Steps Webalizer (SSW) is a command-line utility and needs to preserve all intermediate data for the month on disk. The original approach was to use a plain-text file (webalizer.current, for those who know anything about SSW). The BDB database that replaced this plain text file consists of the following databases:
sequences (maintains record IDs for all other tables)
urls -primary database containing URL data - record ID (key), URL itself, grouped data, such as number of hits, transfer size, etc)
urls.values - secondary database that contains a hash of the URL (key) and the record ID linking it to the primary database; this database is used for value lookups)
urls.hits - secondary database that contains the number of hits for each URL (key) and the record ID to link it to the primary database; this database is used to order URLs in the report by the number of hits.
The remaining databases are here just to indicate the database structure. They are the same in nature as the two described above. The legend is as follows: (s) will indicate a secondary database, (p) - primary database, (sf) - filtered secondary database (using DB_DONOTINDEX).
urls.xfer (s), urls.entry (s), urls.exit (s), urls.groups.hits (sf), urls.groups.xfer (sf)
hosts (p), hosts.values (s), hosts.hits (s), hosts.xfer (s), hosts.groups.hits (sf), hosts.groups.xfer (sf)
downloads (p), downloads.values (s), downloads.xfer (s)
agents (p), agents.values (s), agents.values (s), agents.hits (s), agents.visits (s), agents.groups.visits (sf)
referrers (p), referrers.values (s), referrers.values (s), referrers.hits (s), referrers.groups.hits (sf)
search (p), search.values (s), search.hits (s)
users (p), users.values (s), users.hits (s), users.groups.hits (sf)
errors (p), errors.values (s), errors.hits (s)
dhosts (p), dhosts.values (s)
statuscodes (HTTP status codes)
totals.daily (31 days)
totals.hourly (24 hours)
totals (one record)
countries (a couple of hundred countries)
system (one record)
visits.active (active visits - variable length)
downloads.active (active downloads - variable length)
All these databases (49 of them) are maintained in a single file. Maintaining a single database file is a requirement, so that the entire database for the month can be renamed, backed up and used to produce reports on demand.
Database Size
One of the sample Squid logs I received from a user contains 4.4M records and is about 800MB in size. The resulting database is 625MB in size. Note that there is no duplication of text data - only nodes and such values as hits and transfer sizes are duplicated. Each record also contains some small overhead (record version for upgrades, etc).
Here are the sizes of the URL databases (other URL secondary databases are similar to urls.hits described below):
urls (p):
8192 Underlying database page size
2031 Overflow key/data size
1471636 Number of unique keys in the tree
1471636 Number of data items in the tree
193 Number of tree internal pages
577738 Number of bytes free in tree internal pages (63% ff)
55312 Number of tree leaf pages
145M Number of bytes free in tree leaf pages (67% ff)
2620 Number of tree overflow pages
16M Number of bytes free in tree overflow pages (25% ff)
urls.hits (s)
8192 Underlying database page size
2031 Overflow key/data size
2 Number of levels in the tree
823 Number of unique keys in the tree
1471636 Number of data items in the tree
31 Number of tree internal pages
201970 Number of bytes free in tree internal pages (20% ff)
45 Number of tree leaf pages
243550 Number of bytes free in tree leaf pages (33% ff)
2814 Number of tree duplicate pages
8360024 Number of bytes free in tree duplicate pages (63% ff)
0 Number of tree overflow pages
The Testbed
I'm running all these tests using the latest BDB (v4.6) built from the source on Win2K3 server (release version). The test machine is 1.7GHz P4 with 1GB of RAM and an IDE hard drive. Not the fastest machine, but it was able to handle a log file like described before at a speed of 20K records/sec.
BDB is configured in a single file in a BDB environment, using private memory, since only one process ever has access to the database).
I ran a performance monitor while running SSW, capturing private bytes, disk read/write I/O, system cache size, etc.
I also used a code profiler to analyze SSW and BDB performance.
The Problem
Small log files, such as 100MB, can be processed in no time - BDB handles them really well. However, once the entire BDB cache is filled up, the machine goes into some weird state and can sit in this state for hours and hours before completing the analysis.
Another problem is that traversing large primary or secondary databases is a really slow and painful process. It is really not that much data!
Overall, the 20K rec/sec quoted above drop down to 2K rec/sec. And that's all after most of the analysis has been done, just trying to save the database.
The Tests
SSW runs in two modes, memory mode and database mode. In memory mode, all data is kept in memory in SSW's own hash tables and then saved to BDB at the end of each run.
In memory mode, the entire BDB is dumped to disk at the end of the run. First, it runs fairly fast, until the BDB cache is filled up. Then writing (disk I/O) goes at a snail pace, at about 3.5MB/sec, even though this disk can write at about 12-15MB/sec.
Another problem is that the OS cache gets filled up, chewing through all available memory long before completion. In order to deal with this problem, I disabled the system cache using the DB_DIRECT_DB/LOG options. I could see OS cache left alone, but once BDB cache was filed up, processing speed was as good as stopped.
Then I flipped options and used DB_DSYNC_DB/LOG options to disable OS disk buffering. This improved overall performance and even though OS cache was filling up, it was being flushed as well and, eventually, SSW finished processing this log, sporting 2K rec/sec. At least it finished, though - other combinations of these options lead to never-ending tests.
In the database mode, stale data is put into BDB after processing every N records (e.g. 300K rec). In this mode, BDB behaves similarly - until the cache is filled up, the performance is somewhat decent, but then the story repeats.
Some of the other things I tried/observed:
* I tried to experiment with the trickle option. In all honesty, I hoped that this would be the solution to my problems - trickle some, make sure it's on disk and then continue. Well, trickling was pretty much useless and didn't make any positive impact.
* I disabled threading support, which gave me some performance boost during regular value lookups throughout the test run, but it didn't help either.
* I experimented with page size, ranging them from the default 8K to 64K. Using large pages helped a bit, but as soon as the BDB cached filled up, the story repeated.
* The Db.put method, which was called 73557 times while profiling saving the database at the end, took 281 seconds. Interestingly enough, this method called ReadFile function (Win32) 20000 times, which took 258 seconds. The majority of the Db.put time was wasted on looking up records that were being updated! These lookups seem to be the true problem here.
* I tried libHoard - it usually provides better performance, even in a single-threaded process, but libHoard didn't help much in this case.

I have been able to improve processing speed up to
6-8 times with these two techniques:
1. A separate trickle thread was created that would
periodically call DbEnv::memp_trickle. This works
especially good on multicore machines, but also
speeds things up a bit on single CPU boxes. This
alone improved speed from 2K rec/sec to about 4K
rec/sec.Hello Stone,
I am facing a similar problem, and I too hope to resolve the same with memp_trickle. I had these queries.
1. what was the % of clean pages that you specified?
2. What duration were you clling this thread to call memp_trickle?
This would give me a rough idea about which to tune my app. Would really appreciate if you can answer these queries.
Regards,
Nishith.
>
2. Maintaining multiple secondary databases in real
time proved to be the bottleneck. The code was
changed to create secondary databases at the end of
the run (calling Db::associate with the DB_CREATE
flag), right before the reports are generated, which
use these secondary databases. This improved speed
from 4K rec/sec to 14K rec/sec.

Iphoto updating the thumbnail cache

I recently installed ilife 06 and I had just moved all my photos over to my recently purchased power mac, and when I opened up iphoto it said it needed to update the thumbnail cache or something like that. Now when I open a photo even outside of iphoto all the images are much smaller in pixel size. Before I did the cache update the photos were very clear in full screen now they are blury. Also I used to have raw images before the update and now they aren't marked as raw anymore. Is it possible to change this or are the images going to be stuck small? Also i do have a power book g4 with the same photos on it and it never asked to update the cache.
Message was edited by: nbetham

nbetham
I copied the files over the network from the iphoto folder on my old computer.
The correct way to do that is to copy the entire iPhoto Library Folder as a unit to the new machine, then let iPhoto update it.
Have a look inside your iPhoto Library Folder - in there you should have three main folders
Originals are the photos as they were downloaded from your camera or scanner.
(ii) Modified contains edited pics, shots that you have cropped, rotated or changed in any way.
(iii) Data holds the thumbnails the the app needs to show you the photos in the iPhoto Window.
Check inside the Originals folder. You'll find it contains Roll Folders and your pics should be inside them Try open some with Preview - are they full sized pics? What file sizes are reported in the Finder?
Regards
TD

I rebuilt the thumbnail cache and lost all the changes and editing I had made to 4000 photos every photo reverted back to the original

A tech rebuilt my iphoto thumbnail cache and afterwards all the changes and editing of all my 4000 photos was gone!
Every phot had reverted back to the original!!!!! WHAT HAPPENED???? Why were all my changes destroyed? Where are the photos that I edited?
Also a bunch of photos disappeared. HELP!!!!!

Of course there is no reason that rebuilding a thumbnail cache would cause a loss of all editing of my photos!!! But that's what happened.
I was there when the tech rebuilt the library and thumbnails. He held down shift & command and opened Iphoto and a window appeared with "Rebuild Photo Library" with 6 boxes to check such as
1) Repair Iphoto Library Database
2) Rebuild Iphoto Library Database from automatic backup
3) Rebuild the photos' small thumbnails
4) Rebuild all the photos'thumbnails (this may take a while)
5) Recover orphaned photos in the Iphoto Library Folder
6) Examine and repair IPhotoLibrary file permissions
The tech checked all boxes and after Iphoto has rebuilt everything all my editing was gone and all my photos had reverted back to their originals representing 5 years work.
There are no stuck keys on my keyboard of my computer.

When opening Bridge (CS6) I get the following message: "Bridge encountered a problem and is unable to read the cache. Please try purging the central cache in Cache Preferences to correct the situation" I tried and after selecting purge cache it does not a

When opening Bridge (CS6) I get the following message: "Bridge encountered a problem and is unable to read the cache. Please try purging the central cache in Cache Preferences to correct the situation" I tried and after selecting purge cache it does not allow me to select OK. Also Bridge keeps saying "Building Criteria" with the spinning wheel and nothing happens. I tried uninstalling and reinstalling to no avail. Please help:)

Maybe a Preferences reset can help:
Numerous program settings are stored in the Adobe Bridge preferences file, including display, Adobe Photo Downloader, performance, and file-handling options.
Restoring preferences returns settings to their defaults and can often correct unusual application behavior.
Press and hold the Ctrl key (Windows) or the Option key (Mac OS) while starting Adobe Bridge.
In the Reset Settings dialog box, select one or more of the following options:
Reset Preferences
Returns preferences to their factory defaults. Some labels and ratings may be lost. Adobe Bridge creates a new preferences file when it starts.
Purge Entire Thumbnail Cache
Purging the thumbnail cache can help if Adobe Bridge is not displaying thumbnails properly. Adobe Bridge re-creates the thumbnail cache when it starts.
Reset Standard Workspaces
Returns Adobe predefined workspaces to their factory default configurations.
Click OK, or click Cancel to open Adobe Bridge without resetting preferences.

When opening Bridge I get this message: Bridge encountered a problem and is unable to read the cache. Please try purging the central cache in the cache preferences to correct the situation. I have tried this and still get this message. when I delete image

When opening Bridge I get this message: Bridge encountered a problem and is unable to read the cash. Please try purging the central cache in the cache preferences to correct this problem. I did this and still get this same message.Also now when deleting images they don't delete till I close and reopen Bridge. What can i do to fix this problem?

Maybe a Preferences reset can help:
Numerous program settings are stored in the Adobe Bridge preferences file, including display, Adobe Photo Downloader, performance, and file-handling options.
Restoring preferences returns settings to their defaults and can often correct unusual application behavior.
Press and hold the Ctrl key (Windows) or the Option key (Mac OS) while starting Adobe Bridge.
In the Reset Settings dialog box, select one or more of the following options:
Reset Preferences
Returns preferences to their factory defaults. Some labels and ratings may be lost. Adobe Bridge creates a new preferences file when it starts.
Purge Entire Thumbnail Cache
Purging the thumbnail cache can help if Adobe Bridge is not displaying thumbnails properly. Adobe Bridge re-creates the thumbnail cache when it starts.
Reset Standard Workspaces
Returns Adobe predefined workspaces to their factory default configurations.
Click OK, or click Cancel to open Adobe Bridge without resetting preferences.

Help!! - originals have disappeared after thumbnail cache reorganisation!

I've just allowed i-Photo to re-organise the thumbnail cache and have lost a pile of originals! The thumbnails are there but as soon as I click on them a grey blank screen appears....
Any thoughts or suggestions!!??
Andy

Welcome to the Apple Discussions. That has happened is that iPhoto has somehow damaged it's database file and lost the link to the original file. The "!" or gray screen means that the library has lost the file path to the original file. This happens when there has been an interruption to iPhoto while it is writing to it's database file, Library6.iPhoto. Moving, renaming files or folder inside the library package while in the Finder is another way you can get that indication. Try the three fixes below in order as needed:
1 - launch iPhoto with the Command+Option keys depressed and follow the instructions to rebuild the library. Select the first three options.
2 - rebuild the library using iPhoto Library Manager as follows:
Using iPhoto Library Manager to Rebuild Your iPhoto Library
1 -Download iPhoto Library Manager and launch.
2 -Click on the Add Library button, navigate to your User/Pictures folder and select your iPhoto Library folder.
3 - Now that the library is listed in the left hand pane of iPLM, click on your library and go to the File->Rebuild Library menu option
4 - In the next window name the new library and select the location you want it to be placed.
5 - Click on the Create button.
Note: It may take some time to create the new library if you have a lot of photos. Report back on how long it took and how many photos you have in the library so we can give other users an idea of how long it may take.
3 - start over with a new library and import the Originals folder from your original library as follows:
Creating a new library while preserving the Events from the original library.
1 - Move the existing library folder to the desktop.
2 - Launch iPhoto and, when asked, select the option to create a new library.
3 - Open the library folder on the desktop and drag the Originals folder from the iPhoto Library on the desktop into the open iPhoto window.
This will create a new library with the same Events as the original library.
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've created an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. It's compatible with iPhoto 08 libraries and Leopard. iPhoto does not have to be closed to run the application, just idle. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.

IPhoto: rebuilding thumbnail cache.

Further to my last problems with iPhoto 6 - most kindly and helpfully answered on this forum - I now find that every time I re-open iPhoto it has to rebuild the thumbnail cache - a time consuming task I never had with iPhoto 5. Is there a hidden button somewhere that tells the program to keep the thumbnail cache? And while on the subject, is there a reason that "Batch Change" won't accept any typing in the text panel? Wish I could be more enthusiastic about this program but after the faiied Adjust panel and now these I'm beginning to wish I'd waited for an Apple debug before investing my money in the upgrade. Any suggestions gratefully - and slavishly - pursued!

mtay:
Check out this thread. There are a couple of possible solutions listed. If you have any movies in your library read the last post in the thread.
http://discussions.apple.com/thread.jspa?threadID=357799&tstart=0

Missing Media - Old Thumbnail Cache?

Hi Gang
Somehow I have the missing media warning, but in actuality, the clips play and export just fine. I think I may have confused FCP after a backed up all my media with Super Duper to another drive
I remember reading somehere, it was suggested to trash the old Thumbnail Cache Files? (since I assume the warning is in error?)
http://www.locationstudio.net/missing-media.jpg
Any suggestions?

You can trash the thumbnail cache but chances are that FCP has lost track of the footage and is now just referencing the render files. If you trashed those using Render Manager, you would likely have to reconnect to get the timeline to playback. Probably not a bad idea if you want to re-establish the connections to you clips for the future.
rh

Can't find my thumbnail cache

I"ve been having an issue where most every time I start iPhoto it tells me to rebuild my thumbnail cache for best performance. I read on another post to go into Home/Library/Cache and dump the iPhoto cache but I went in there and I don't have an iPhoto cache. Could I have deleted something? Any idea what's going on?

Ewhites:
The iPhoto cache folder that you're referring to is not the thumbnail cache. It's created when you do a lot of book and other type of organizational work in iPhoto.
In addition to Terence's suggestion you might try rebuilding the library as follows: launch iPhoto with the Command+Option keys depressed and follow the instructions to rebuild the library. Select the first three options.
I would suggest you make a temporary backup of the iPhoto Library folder (select it and type Command-D) beforehand. Just in case. When the rebuild is done and you're happy with it you can delete the backup copy.
Do you Twango?
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've written an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.

Upgraded to iPhoto 8, rebuilt thumbnail cache, lost all pre-iphoto8 pics

Arrrg! I recently upgraded to iLife 08 - iPhoto was working beautifully but kept asking me to rebuild the thumbnail cache, which I put off for a few days. Then, after downloading pictures from my camera to iPhoto8 for the first time, I decided to rebuild the thumbnail cache (from the prompt at start-up). I never really noticed anything happening (no window to say that the rebuilding of caches had begun) but when iPhoto opened up again, only the recent pics I had just downloaded showed up. PANIC.
I have a few thousand pics now missing.
I can't go into the iPhoto library (on an external harddrive) like I used to. As it is now more like an application icon that only opens the iPhoto program. It seems that I can no longer access any file like "originals".
Now, I have checked all the trash cans: nothing
I have opened iPhoto using option, and option apple: nothing
When I open disk utilities and check the external harddrive I can tell that the files are still there (judging from the amount of disk space used, and still available) I just access them at all.
What should I do? Please Help!

Welcome to the Apple Discussions.
Sounds like a corrupted database.
Try these in order - from best option on down...
1. Do you have an up-to-date back up? If so, try copy the library6.iphoto file from the back up to the iPhoto Library (Right Click -> Show Package Contents) allowing it to overwrite the damaged file.
2. Download iPhoto Library Manager and use its rebuild function. This will create a new library based on data in the albumdata.xml file. Not everything will be brought over - no slideshows, books or calendars, for instance - but it should get all your albums back.
3. If neither of these work then you'll need to create and populate a new library.
To create and populate a new library:
Note this will give you a working library with the same Events and pictures as before, however, you will lose your albums, keywords, modified versions, books, calendars etc.
In the iPhoto Preferences -> Events Uncheck the box at 'Imported Items from the Finder'
Move the iPhoto Library to the desktop
Launch iPhoto. It will ask if you wish to create a new Library. Say Yes.
Go into the iPhoto Library (Right Click -> Show Package Contents) on your desktop and find the Originals folder. From the Originals folder drag the individual Event Folders to the iPhoto Window and it will recreate them in the new library.
When you're sure all is well you can delete the iPhoto Library on your desktop.
In the future, in addition to your usual back up routine, you might like to make a copy of the library6.iPhoto file whenever you have made changes to the library as protection against database corruption.
As to accessing files:
There are three ways (at least) to get files from the iPhoto Window.
1. *Drag and Drop*: Drag a photo from the iPhoto Window to the desktop, there iPhoto will make a full-sized copy of the pic.
2. *File -> Export*: Select the files in the iPhoto Window and go File -> Export. The dialogue will give you various options, including altering the format, naming the files and changing the size. Again, producing a copy.
3. *Show File*: Right- (or Control-) Click on a pic and in the resulting dialogue choose 'Show File'. A Finder window will pop open with the file already selected.
To upload to MySpace or any site that does not have an iPhoto Export Plug-in the recommended way is to Select the Pic in the iPhoto Window and go File -> Export and export the pic to the desktop, then upload from there. After the upload you can trash the pic on the desktop. It's only a copy and your original is safe in iPhoto.
This is also true for emailing with Web-based services. If you're using Gmail you can use THIS
If you use Apple's Mail, Entourage, AOL or Eudora you can email from within iPhoto.
If you use a Cocoa-based Browser such as Safari, you can drag the pics from the iPhoto Window to the Attach window in the browser. Or, if you want to access the files with iPhoto not running, then create a Media Browser using Automator (takes about 10 seconds) or use THIS
The change was made to the format of the iPhoto library because many users were inadvertently corrupting their library by browsing through it with other software or making changes in it themselves. If you're willing to risk database corruption, you can restore the older functionality simply by right clicking on the iPhoto Library and choosing 'Show Package Contents'. Then simply make an alias to the folders you require and put that alias on the desktop or where ever you want it. Be aware though, that this is a hack and not supported by Apple.
Regards
TD

Thumbnail Cache Randomly Deleting and Recreating

I have a ton of photos on the computer and having to wait for the thumbnails to cache is a pain, in fact, the only pain so far with windows 7. I'm just wondering if anybody else is having this problem where the thumbnail cache spontaneously deletes itself and then all the thumbnails have to cache again. This happens at least once a day. Is there something that I'm doing to cause this? Any help is much appreciated. Thank you

Like everyone else this has been driving me nuts, I've got literally zillions of images & videos that are god-awful to scan in Explorer without thumbnails, and most of those (RAW photos & videos) are ultra-slow to recreate.
HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/ThumbnailCache
MaxCacheFileSize1024 (default: 5880 decimal)
MaxCacheFileSize256 (default: 366 ")
MaxCacheFileSize32 (default: 82 ")
MaxCacheFileSize96 (default: 682 ")
I've upped each one by 10x (remember to restart Explorer), let's hope it works ...
Interesting, I do not even have this key? Can't believe Microsoft haven't fixed this yet, it must be a trivial thing to allow users to set their own max value. They are even passing off the problem as fixed when this 'fix' does not actually work! http://social.technet.microsoft.com/Forums/en-US/w7itproui/thread/82f82ef8-caf7-49d0-96a7-611ce87eeba2
I have simply given up on Windows Explorer to show photos now, Faststone Image Viewer does a much better job with many more features and all explorer functions included, just set your main pictures folders as favourites- right click "Add Folder to Favorites",
and you're away. Most importantly, the thumbnails never get deleted and will automatically load by just clicking the folder, no need to scroll down as in Windows Explorer. Double click a file to view full screen, move mouse to left you have, all advanced file
and draw functions, to right, file attributes, EXIF, histogram data, below simple draw functions, image zoom & navigation, mouse to top to get scroll bar to access all images in the folder & navigate to new folders or favorites, return to main program. You
can customize many functions including thumbnails, mouse functions in settings.
http://www.faststone.org/FSViewerDownload.htm
I was still having this problem even after changing the folder permissions based on the "Answer" above. However, I think I finally figured it out. The problem was that all my photo thumbnails were being sorted by "Date
Taken" descending. When I changed this to "Name", which is the default I think, I no longer expericed the long delays while the thumbnails showed up. So I'm not sure if it was actually a cache issue or just that Windows will always
go through the list of files to try and re-sort (or something) by Date Taken or perhaps whatever other criteria you are using. Just go with Name and see if that helps.
There should no 'delay' in showing thumbnails, XP never had this problem, if you use Faststone Viewer as I recommend above, you'll never see any delays whatsoever after the thumbnails load the 1st time, and no disappearing thumbnails ever again.

PSE8 won't rebuild faulty thumbnail cache - any ideas?

I had a LOT of trouble moving my catalog of about 16000jpeg files from a previous pc (PSE6) to a new Windows 7, 64 bit pc. PSE6 or 7 wouldn't load on the new one so I purchased PSE8. After a MONTH of uninstall/reinstall etc I finally got the catlaog to work (by converting then moving the thumbnail cache file from the old pc to the new.- It wouldn't work by deleting the cache on the new pc and hopng for a rebuild). It all worked well for a week or 2 and I deleted quite a few files and tags and was just adding some new photos and the cache became corrupted again. I tried the" repair catalog" instruction and it tried to reform the cache but this jammed Organiser completely and it won't work at all now - opens but is frozen (eg won't even minimise). I'd left it overnight to recreate the thumbnails so it isn't that....I've got a request for Adobe to answer the problem - (1st June) but haven't heard anything yet. Any suggestions? Is anyone else using this volume of jpegs on a 64 bit pc with Windows 7...? Adobe give no official maximum catalog size....but this isn't fitfor my purposes....I'm probably going to switch to Picasa for my new files but need to get access to my old files back via Organiser,,:-(

Dear John,
As this is rather complicated and I did take action following my post on the forum, I thought it best to email and send the attachment - which is your suggestions and my comments..the rather sad results!
I am now back to the generic Adobe solutions and their customer services. (I think, unless you spot something??)
As Organiser isn't jammed with the tiny test catalog it seems it is purely a problem with the main catalog - and an inability to rebuild thumbnails - it starts the rebuild as soon as Organiser is opened (judging from the size and times of the thumb.5 cache file) then jams straightaway - the last one was 338KB today - just before midnight - a little while ago... It DID rebuild the tiny test catalog after I deleted that thumbnail cache file as a test.
Adobe's customer service solution was to split the main catalog as discussed before as they said it was too big...(I know it SHOULDN'T be! - and indeed it did work at full size for a week...)
1. To split?? Although your psedb tool didn't find last time any errors it does appear to be a problem linked to this (size of/ number of tags? Etc?) catalog...if I am to access the info at all it looks as if I MAY need to split it...as you recommend not doing that if at all possible I thought I'd just send you the attached update to see if you do think it is now warranted...(assuming I'd be able to split it anyway) with Organiser being jammed...
2. Try a restore?? Adobe's troubleshooting suggestion includes to restore from a back up if repair and optimise don't work - although my back up is only a week old (so not TOO bad) this would still require thumbnail creation wouldn't it? (and I recall it didn't work last time...) - and it would require overwriting my image files again I think? As they are jpegs I'm concerned I'll lose quality each time...is that right?
3. Rebuild?? I note your comment re the problems with Organiser - and although I've loved it and found it so fast and useful, I will be looking elsewhere for future file organisation - I can't stand the uncertainty of PSE8! However I do so need to access the info in my main catalog...is it time to give up on it though, if an alternative or splitting isn't an answer? I've got to be realistic. Adobe's point 7 in troubleshooting catalog errors is in fact to rebuild. arrgghh!
I'd be interested in your views on these points - or alternatives. I may be "in denial" over losing the catalog but hope is fading fast...
Looking forward to hearing from you if you are able to spare the time,
Many thanks
Ruth
(Jigsawpuzzl)

I've lost my photos (crashed hdd, iPhoto library on Time Machine corrupt too). Is there a way to create a picture from the thumbnail that remains in iPhoto? The quality is obviously poor, but better than nothing.

I've lost my photos (crashed hdd, iPhoto library on Time Machine corrupt too). Is there a way to create a picture from the thumbnail that remains in iPhoto? The quality is obviously poor, but better than nothing.

Time machine should have a good copy - how are you determining that it is corrupt
If you want the thumbnails as photos right click on the iPhoto library and make a copy of the data folder and then import it into a new iPhoto library - it contains your thumbnails
LN

Rebuild thumbnail cache

Hi all,
Let me assure you that before posting this question, I read through many of the posts on the same subject. But there were lots of different pieces of advice and I'm not sure which one to use. Also the last post was a few months ago and maybe some new advice has come up.
I'm getting the message to 'Rebuild thumbnail cache' a lot, even though nothing seems to be wrong with the way iPhoto is working. What's the best way to get rid of this message?
I've tried Option + Apple + Launch iPhoto, then selecting all boxes but the 'orphaned photos' one, then rebuilding. That has not stopped the message.
Thanks and regards,
Andrew

Movie lady
Did you go to home/library/caches and delete the iPhoto Folder therein. Then launch iPhoto. It'll take a few moments to launch as it rebuilds the caches.
Do a get info on your HD icon. It'll tell you the capacity and the available space. The reason I ask is that an overfull HD can cause problems like this, but most likely it's just a malformed cache file.
Regards
TD

Poor Reorganization of the Thumbnail Cache

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