Save error - Unable to save file when switching between multiple .blend files #79606

New Issue

JP · 2020-08-07T04:18:42+02:00

JP commented

2020-08-07 04:18:42 +02:00

System Information
Operating system: Darwin-19.4.0-x86_64-i386-64bit 64 Bits - MacOS Catalina 10.15.4 (19E287)
Graphics card: AMD Radeon Pro 560X OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.8.24

Blender Version
Broken: version: 2.83.3, branch: master, commit date: 2020-07-22 06:01, hash: 353e5bd749
Worked: (newest version of Blender that worked as expected)

Short description of error
MacOS only allows one instance of blender open. When working on large projects, I need to switch between several .blend files that link data back to a set of master files. After going to file/open or opening from recent several times (Maybe 5-6 times max), an error comes up:

Unable to open '/Volumes/workdesk_A/matterhorn/working/BLENDER/_ASSETS/_LAYOUTS_main.blend': Too many open files

From that point on I'm unable to save the blend file and am forced to restart - which fixes it. Another symptom is the disappearance of directories in the open/save dialog.

Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]

**System Information** Operating system: Darwin-19.4.0-x86_64-i386-64bit 64 Bits - MacOS Catalina 10.15.4 (19E287) Graphics card: AMD Radeon Pro 560X OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.8.24 **Blender Version** Broken: version: 2.83.3, branch: master, commit date: 2020-07-22 06:01, hash: `353e5bd749` Worked: (newest version of Blender that worked as expected) ![Screen Shot 2020-08-06 at 7.12.37 PM.png](https://archive.blender.org/developer/F8754061/Screen_Shot_2020-08-06_at_7.12.37_PM.png) **Short description of error** MacOS only allows one instance of blender open. When working on large projects, I need to switch between several .blend files that link data back to a set of master files. After going to file/open or opening from recent several times (Maybe 5-6 times max), an error comes up: Unable to open '/Volumes/workdesk_A/matterhorn/working/BLENDER/_ASSETS/_LAYOUTS_main.blend': Too many open files From that point on I'm unable to save the blend file and am forced to restart - which fixes it. Another symptom is the disappearance of directories in the open/save dialog. **Exact steps for others to reproduce the error** [Please describe the exact steps needed to reproduce the issue] [Based on the default startup or an attached .blend file (as simple as possible)]

JP commented

2020-08-07 04:18:42 +02:00

Added subscriber: @jpmonroyal

Stephen Swaney commented

2020-08-07 20:38:41 +02:00

Added subscriber: @StephenSwaney

Stephen Swaney commented

2020-08-07 20:38:41 +02:00

Too many open files

Not a Mac guy, but....
The maximum number of open files is a system or per user setting in a lot of operating systems.
Maybe there is a MacOS setting for this?

> Too many open files Not a Mac guy, but.... The maximum number of open files is a system or per user setting in a lot of operating systems. Maybe there is a MacOS setting for this?

Yevgeny Makarov commented

2020-08-07 21:39:15 +02:00

Added subscriber: @jenkm

Yevgeny Makarov commented

2020-08-07 21:39:15 +02:00

This is certainly not a bug in Blender, this is a report from the OS.

You can run multiple instances of Blender from the Terminal.
The number of open files you're allowed can be increased, look for ulimit -n.

Or you can just keep multiple Blender.app files, this makes it easy to run multiple instances.

This is certainly not a bug in Blender, this is a report from the OS. - You can run multiple instances of Blender from the Terminal. - The number of open files you're allowed can be increased, look for `ulimit -n`. Or you can just keep multiple `Blender.app` files, this makes it easy to run multiple instances.

Richard Antalik commented

2020-08-10 12:12:46 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-08-10 12:12:46 +02:00

@jpmonroyal Can you test above suggestions and report if they were sucessful?

I don't have mac to test and don't want to close without feedback.

@jpmonroyal Can you test above suggestions and report if they were sucessful? I don't have mac to test and don't want to close without feedback.

Richard Antalik commented

2020-08-10 12:17:08 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Campbell Barton commented

2020-08-20 09:45:52 +02:00

Added subscriber: @ideasman42

Campbell Barton commented

2020-08-20 09:45:52 +02:00

Note that this could be a resource leak in Blender or an Add-on failing to close files.

Can you redo this error with factory settings loaded?
Can you use a process monitor that shows open files while Blender runs? This way you can see which files are being left open.

Note that this could be a resource leak in Blender or an Add-on failing to close files. - Can you redo this error with factory settings loaded? - Can you use a process monitor that shows open files while Blender runs? This way you can see which files are being left open.

Richard Antalik commented

2020-10-15 20:13:18 +02:00

Changed status from 'Needs User Info' to: 'Archived'

Richard Antalik closed this issue

2020-10-15 20:13:18 +02:00

Richard Antalik self-assigned this 2020-10-15 20:13:18 +02:00

Richard Antalik commented

2020-10-15 20:13:18 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

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Save error - Unable to save file when switching between multiple .blend files #79606