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gsutil Upload Stuck at 99% for Large Folder Transfer to Google Cloud Storage

Hello,

I'm encountering an issue while trying to upload a large folder (around 357 GB) to my Google Cloud Storage bucket using gsutil on a Mac. I've been using the following command:

gsutil -m cp -r "/Volumes/[ExternalDrive]/[FolderName]" gs://[YourBucketName]/

The upload process progressed smoothly until it reached 99%, displaying this status:

[12.4k/12.4k files][356.8 GiB/356.8 GiB]  99% Done  14.1 MiB/s ETA 00:00:00

However, it's been stuck at this point for an extended period without completing. The network and system resources seem stable, and I haven't encountered any error messages.

Has anyone experienced a similar issue, or does anyone have insights into why the process might be hanging at the last percent? Are there additional steps I should take to troubleshoot or complete this upload?

Any advice or suggestions would be greatly appreciated! Thank you!

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