GNU Parallel not completing all "find" commands

Question

I'm trying to parallelize a command without success, there are about 100 video files to convert.

This format resulted in 8 files being converted in a random order:

parallel -j 8 videoConvert ::: `find "/mnt/bulk-data-02/videos/convert" -iname "*.mov"`

This format resulted in 12 files being converted in a random order:

find "/mnt/bulk-data-02/videos/convert" -iname "*.mov" | parallel -j 8 videoConvert

Please Help, Thanks.

The results of: find "/mnt/bulk-data-02/videos/convert" -iname "*.mkv" | parallel --dryrun -j 8 videoConvert find "/mnt/bulk-data-02/videos/convert" -iname "*.mkv" | parallel --dryrun -j 8 videoConvert

Are as follows, but I had to delete some because the website doesn't like large code blocks:

videoConvert /mnt/bulk-data-02/videos/convert/053.mkv
videoConvert /mnt/bulk-data-02/videos/convert/005.mkv
videoConvert /mnt/bulk-data-02/videos/convert/100.mkv
videoConvert /mnt/bulk-data-02/videos/convert/112.mkv
videoConvert /mnt/bulk-data-02/videos/convert/032.mkv
videoConvert /mnt/bulk-data-02/videos/convert/025.mkv
videoConvert /mnt/bulk-data-02/videos/convert/101.mkv
videoConvert /mnt/bulk-data-02/videos/convert/033.mkv
videoConvert /mnt/bulk-data-02/videos/convert/054.mkv
videoConvert /mnt/bulk-data-02/videos/convert/039.mkv
videoConvert /mnt/bulk-data-02/videos/convert/004.mkv
videoConvert /mnt/bulk-data-02/videos/convert/060.mkv
videoConvert /mnt/bulk-data-02/videos/convert/041.mkv
videoConvert /mnt/bulk-data-02/videos/convert/038.mkv
videoConvert /mnt/bulk-data-02/videos/convert/076.mkv
videoConvert /mnt/bulk-data-02/videos/convert/030.mkv
videoConvert /mnt/bulk-data-02/videos/convert/040.mkv
videoConvert /mnt/bulk-data-02/videos/convert/105.mkv
videoConvert /mnt/bulk-data-02/videos/convert/056.mkv
videoConvert /mnt/bulk-data-02/videos/convert/094.mkv
videoConvert /mnt/bulk-data-02/videos/convert/012.mkv
videoConvert /mnt/bulk-data-02/videos/convert/043.mkv
videoConvert /mnt/bulk-data-02/videos/convert/029.mkv
videoConvert /mnt/bulk-data-02/videos/convert/010.mkv
videoConvert /mnt/bulk-data-02/videos/convert/088.mkv
videoConvert /mnt/bulk-data-02/videos/convert/091.mkv
videoConvert /mnt/bulk-data-02/videos/convert/083.mkv
videoConvert /mnt/bulk-data-02/videos/convert/086.mkv
videoConvert /mnt/bulk-data-02/videos/convert/022.mkv
videoConvert /mnt/bulk-data-02/videos/convert/050.mkv
videoConvert /mnt/bulk-data-02/videos/convert/087.mkv
videoConvert /mnt/bulk-data-02/videos/convert/098.mkv
videoConvert /mnt/bulk-data-02/videos/convert/095.mkv
videoConvert /mnt/bulk-data-02/videos/convert/008.mkv
videoConvert /mnt/bulk-data-02/videos/convert/015.mkv
videoConvert /mnt/bulk-data-02/videos/convert/064.mkv
videoConvert /mnt/bulk-data-02/videos/convert/080.mkv
videoConvert /mnt/bulk-data-02/videos/convert/069.mkv
videoConvert /mnt/bulk-data-02/videos/convert/057.mkv
videoConvert /mnt/bulk-data-02/videos/convert/037.mkv
videoConvert /mnt/bulk-data-02/videos/convert/072.mkv
videoConvert /mnt/bulk-data-02/videos/convert/055.mkv
videoConvert /mnt/bulk-data-02/videos/convert/102.mkv
videoConvert /mnt/bulk-data-02/videos/convert/051.mkv
videoConvert /mnt/bulk-data-02/videos/convert/066.mkv
videoConvert /mnt/bulk-data-02/videos/convert/036.mkv
videoConvert /mnt/bulk-data-02/videos/convert/099.mkv
videoConvert /mnt/bulk-data-02/videos/convert/089.mkv
videoConvert /mnt/bulk-data-02/videos/convert/063.mkv
videoConvert /mnt/bulk-data-02/videos/convert/103.mkv
videoConvert /mnt/bulk-data-02/videos/convert/062.mkv
videoConvert /mnt/bulk-data-02/videos/convert/067.mkv
videoConvert /mnt/bulk-data-02/videos/convert/096.mkv
videoConvert /mnt/bulk-data-02/videos/convert/075.mkv
videoConvert /mnt/bulk-data-02/videos/convert/003.mkv
videoConvert /mnt/bulk-data-02/videos/convert/049.mkv
videoConvert /mnt/bulk-data-02/videos/convert/007.mkv
videoConvert /mnt/bulk-data-02/videos/convert/016.mkv
videoConvert /mnt/bulk-data-02/videos/convert/014.mkv
videoConvert /mnt/bulk-data-02/videos/convert/073.mkv
videoConvert /mnt/bulk-data-02/videos/convert/084.mkv
videoConvert /mnt/bulk-data-02/videos/convert/021.mkv
videoConvert /mnt/bulk-data-02/videos/convert/093.mkv
videoConvert /mnt/bulk-data-02/videos/convert/074.mkv
videoConvert /mnt/bulk-data-02/videos/convert/061.mkv
videoConvert /mnt/bulk-data-02/videos/convert/017.mkv
videoConvert /mnt/bulk-data-02/videos/convert/078.mkv
videoConvert /mnt/bulk-data-02/videos/convert/071.mkv
videoConvert /mnt/bulk-data-02/videos/convert/081.mkv
videoConvert /mnt/bulk-data-02/videos/convert/011.mkv
videoConvert /mnt/bulk-data-02/videos/convert/070.mkv
videoConvert /mnt/bulk-data-02/videos/convert/042.mkv
videoConvert /mnt/bulk-data-02/videos/convert/106.mkv
videoConvert /mnt/bulk-data-02/videos/convert/013.mkv
videoConvert /mnt/bulk-data-02/videos/convert/110.mkv
videoConvert /mnt/bulk-data-02/videos/convert/020.mkv
videoConvert /mnt/bulk-data-02/videos/convert/024.mkv
videoConvert /mnt/bulk-data-02/videos/convert/047.mkv
videoConvert /mnt/bulk-data-02/videos/convert/034.mkv
videoConvert /mnt/bulk-data-02/videos/convert/092.mkv
videoConvert /mnt/bulk-data-02/videos/convert/065.mkv
videoConvert /mnt/bulk-data-02/videos/convert/002.mkv
videoConvert /mnt/bulk-data-02/videos/convert/045.mkv
videoConvert /mnt/bulk-data-02/videos/convert/001.mkv
videoConvert /mnt/bulk-data-02/videos/convert/090.mkv
videoConvert /mnt/bulk-data-02/videos/convert/068.mkv
videoConvert /mnt/bulk-data-02/videos/convert/077.mkv
videoConvert /mnt/bulk-data-02/videos/convert/026.mkv
videoConvert /mnt/bulk-data-02/videos/convert/031.mkv
videoConvert /mnt/bulk-data-02/videos/convert/027.mkv
videoConvert /mnt/bulk-data-02/videos/convert/058.mkv
videoConvert /mnt/bulk-data-02/videos/convert/046.mkv
videoConvert /mnt/bulk-data-02/videos/convert/028.mkv

Answer 1

If, as your output suggests, all your files are in one directory, you can use:

parallel -j 8 videoConvert ::: /mnt/bulk-data-02/videos/convert/*.mkv

---

If your files are not in a single directory, you are generally better off piping null-terminated filenames into parallel like this:

find /mnt/... -iname ... -print0 | parallel -0 videoConvert