As has been suggested by others facing this issue, I made a new catalogue and imported the old catalogue. This fixed the issue on the day that I did it, now, returning to the catalogue a few days later, the issue has returned.
Again, as others have found, there is low CPU usage and disk activity. It's almost like nothing is happening.
I worry that there really could be an issue with integrity with this catalogue.
Please help !
Lightroom CC 2015.12
2016 MacBookPro, 16GB RAM, 1TB SSD, 4GB VRAM
I haven't cleared the history in some months so I would doubt it's related. This issue just came on. The integrity check has been instant for years and now it seems to hang. Which is concerning.
You might also check for missing image files, which may cause integrity checking to take longer. In the Library module Catalog pane select 'All Photographs.' Next go to menu Library> 'Find All Missing Photos.' Relocate any missing photos or simply 'Remove' them.
Yes, only Lightroom is open. Loads of free space. No missing image files. I really do try and keep things lean and trim :)
The catalogue is located on a Thunderbolt 3 external drive so that I can work on another machine if I need to. Though, its always been on an external drive. The last drive I used was Thunderbolt 1 (for about three years) and never had an issue.
What is interesting is that making a new catalogue and re-importing everything fixed the issue. I opened and closed the catalogue quite a few times that day, backing up each time so I could check, and everything was instant. I really thought it had been fixed. Then today, back to waiting ...
My concern is not specifically the time, but that the process suddenly jumps in time from seconds to minutes. And I would hate to lose my catalogue for some reason related to integrity. It could have happened with the last release (a month or so ago) of Lightroom, though I'm not sure.
I just checked my LR catalog with 35,000 image files and it only took 15 seconds for the integrity check and ~ 3 minutes total for the backup. However my catalog is on an SSD. Copy the LR catalog folder over to your 1TB SSD, open LR and go to File 'Open Catalog,' and select the LR catalog .lrdata file on the 1TB system drive. See how long it takes for the integrity check and backup on the SSD.
The Mac gets rebooted everyday and I'm afraid that doesn't make any difference.
I did just try the catalogue from the SSD and it is quicker. I guess it should be as its 10x faster than my HDD. 2000MB/s vs 200MB/s
I'm not so much worried that I have to wait a few minutes, I'm concerned for the sudden increase in time that either points to a genuinely failing catalogue or just that Lightroom has started doing this process a little differently/less efficiently recently.
If it is some sort of integrity issue, I wouldn't know what to do about it. Which is worrying.
The fact, though, that you can fix the issue for a day or so (by creating a new catalogue), and Lightroom blazes through the integrity check, suggests that Lightroom is having some kind of issue with something other than integrity problems? I'm not sure.
If it had always taken minutes with an HDD, for the last several years, then it would be no concern.
Sorry to bother, thanks again :)
One other thing you can try is to select 'All Photographs' and then File> Export as a catalog.' Make sure to NOT check 'Export negative files,' which will create copies of the original files.
I don't store presets with the catalogue.
Okay. I just followed your suggestion. I went into my catalogue, selected all the images and chose ‘Export as Catalogue’. I then went to exit Lightroom, which brought up the backup prompt. So I ran it. The catalogue that took minutes the other day, completed in seconds. So the issue really does just come and go. I have no doubt that the the slow integrity check will return, but I’d love to know the cause of this.
The catalogue that I just created via ‘Export as Catalogue’ looks the same as the original. However, it took minutes to integrity check rather than seconds. Its so random.
I don’t really think that the integrity check hangs, as such, because disk activity continues throughout. But something slows it up considerably. I’m kind of hoping that this is just software related rather than genuine integrity problems. Surely such problems would not get exported into newly created catalogues? And surely a corruption issue would not come and go like this?
Just FYI, there is no antivirus running in the background, Time Machine is not running etc. I don’t think that this issue ever occurred when I used a LaCie 3TB d2 Thunderbolt 1 / USB3 disk. It may not be related but the current disk is a G-Tech 10TB connected via Thunderbolt 3.
Thanks as ever.
The internal SSD is difficult to gauge because of its speed. Every integrity check is under a second. Maybe it would vary if I tested enough times. But it didn't vary whilst testing just now.
Either the speed of the SSD is hiding the issue, or the issue is only with an external HDD.
I will try and do more testing if I get time. Just trying to be sure my catalogue is okay ^^
Thanks again ~
Well, surprise Adobe CC 2018 release eh ^^ Anyway, I have not upgraded Lightroom yet. I thought I would try and pin this issue down before that.
Just incidentally. It seemed curious to me that your SSD was not at all faster than your internal HDD. I just wondered. Occasionally when doing this kind of test, I have found that when you copy a catalogue to a new location and do a backup with the original backup location still attached, the new backup often goes there instead. When you get the ‘perform backup’ prompt come up, make sure that it really is going to the new location. Anyway, that ‘may’ be why your SSD showed no difference.
Anyway, I have done some more testing. My original LaCie 3TB USB3 still has the Lightroom catalogue and all the DNG files on it, though about two months since it was last updated. I did a backup on this and got the usual instant integrity check. Yay!
I then copied this known good catalogue to my G-Tech 10TB Thunderbolt 3 drive, opened the catalogue, ran a backup, and got the stalled 2 minute backup. I then tested this drive over its USB3 interface and got the same stalled integrity check. I then copied this to another identical G-Tech 10TB Thunderbolt 3 drive and got exactly the same issue. In fact I have four of these drives and they all hang the integrity check! So the problem is not the catalogue or one particular G-Tech drive. It seems that this model of drive is at fault.
It seems incredible but I have tested it over and over with multiple drives. The old LaCie is instant and the GTech drives take about two minutes. Time to call G-Tech :/ I'll report back.
Thanks again for your help.
Even though the only piece of hardware that seems to cause the issue is the particular model of drive, G-Technology said that they couldn't help and that the issue must be due to my system
Im summary, I guess the issue could be with Lightroom or something else. Though, as the only consistent element seems to be the model of drive, it is hard to blame anything else at this stage. I do feel that G-Tech have been less than professional here. It's a premium drive aimed at Mac users. I'm using a pretty new Mac, which, incidentally, must be one of relatively few computers to actually include this drive's main interface, Thunderbolt 3. Hardly an odd or unique system.
Anyway, I guess I will have to leave it there for now. Many thanks for helping to troubleshoot the issue ~