Unable to create cache

[panyang]

I used CEF 83.0.4103.97 and set cache_path to "D:\\11".
When I opened both applications, the page load of the second application was very slow, and the CEF log reported the following error.

[1225/140309.949:WARNING:value_store_frontend.cc(44)] Reading mhjfbmdgcfjbbpaeojofohoefgiehjai.alarms from failed: IO error: .../LOCK: File currently in use. (ChromeMethodBFE: 15::LockFile::2)
[1225/140321.196:ERROR:cache_util_win.cc(21)] Unable to move the cache: 拒绝访问。 (0x5)
[1225/140321.197:ERROR:cache_util.cc(139)] Unable to move cache folder D:\11\GPUCache to D:\11\old_GPUCache_000
[1225/140321.197:ERROR:disk_cache.cc(184)] Unable to create cache
[1225/140321.197:ERROR:shader_disk_cache.cc(606)] Shader Cache Creation failed: -2
[1225/140321.600:ERROR:cache_util_win.cc(21)] Unable to move the cache: 拒绝访问。 (0x5)
[1225/140321.601:ERROR:cache_util.cc(139)] Unable to move cache folder D:\11\Cache to D:\11\old_Cache_000
[1225/140321.601:ERROR:disk_cache.cc(184)] Unable to create cache

[magreenblatt]

Check permissions for the D:\11 folder on your computer.

[panyang]

Check permissions for the D:\11 folder on your computer.

there is no problem while operate one application，but error occurs when two or more aplications work simultaneously

[magreenblatt]

You cannot use the same cache path from multiple applications simultaneously.

[panyang]

You cannot use the same cache path from multiple applications simultaneously.

for this situation, any way to solve this problem in case of operating multiple applications by using same cache path?

[ndesktop]

Other than patching Chromium or use a some kind of virtual filesystem which allows this, not really.
Besides, what happens if two separate apps navigates to the same url? They will get two separate cookies which will overwrite one another, rendering one session invalid and possibly block from server. Other that a some kind of leech application, what would be a hypotetical use case of multiple instances sharing the same cache?

[HarmlessDave]

for this situation, any way to solve this problem in case of operating multiple applications by using same cache path?

You could create sub-folders for each instance like D:\\11\instance-1234\\ and D:\\11\instance-5678\\ or ...\\instance-(generated-UUID)

Is there really a need to share the same cache contents? Can you explain why you need this?

[panyang]

for this situation, any way to solve this problem in case of operating multiple applications by using same cache path?

You could create sub-folders for each instance like D:\\11\instance-1234\\ and D:\\11\instance-5678\\ or ...\\instance-(generated-UUID)

Is there really a need to share the same cache contents? Can you explain why you need this?

sometimes my application invoked externally to load different pages, there are some common information need to be shared among those pages (e.g. log in information)

[amaitland]

The easiest option is to have one process that maintains multiple windows (Chrome does this)

Use a Mutex to ensure you have a single app instance
Use some sort of IPC to communicate the requirement to open a new window with a different url within your application.