I have also tried reducing the file split to 100MB.
The result was the same.
There is plenty of disk space on the host.
Errors
The backup is being aborted for a repeated failure to progress.
Time taken:1 hours, 12 minutes, 21 seconds
Uploaded to:Google Drive
Extract of Log
0000.035 (0) UpdraftPlus WordPress backup plugin (https://updraftplus.com): 2.16.62.25 WP: 5.8.1 PHP: 7.2.34 (litespeed, Linux cp-qh02.syd02.ds.network 3.10.0-962.3.2.lve1.5.27.el7.x86_64 #1 SMP Sat Nov 30 02:18:52 EST 2019 x86_64) MySQL: 10.3.25-MariaDB-log-cll-lve (max packet size=26214400) WPLANG: en_AU Server: Apache safe_mode: 0 max_execution_time: 900 memory_limit: 256M (used: 79.9M | 82.5M) multisite: N openssl: OpenSSL 1.1.1d 10 Sep 2019 mcrypt: Y LANG: ZipArchive::addFile: Y
0000.182 (0) Free space on disk containing Updraft’s temporary directory: 298768.8 MB
0000.220 (0) Tasks: Backup files: 1 (schedule: daily) Backup DB: (schedule: daily)
0000.222 (0) Processed schedules. Combining jobs from identical schedules. Tasks now: Backup files: 1 Backup DB: 1
0000.248 (0) Requesting semaphore lock (fd) (apparently via scheduler: last_scheduled_action_called_at=1633647628, seconds_ago=71677)
0000.253 (0) Semaphore (fd, wptn_options) was stuck, set lock time to 2021-10-08 18:55:05
0000.258 (0) Semaphore (fd, wptn_options) reset to 1
0000.260 (0) Set semaphore last lock (fd) time to 2021-10-08 18:55:05
0000.261 (0) Semaphore lock (fd) complete
0000.268 (0) Backup run: resumption=0, nonce=de15a811f4bd, file_nonce=de15a811f4bd begun at=1633719305 (0s ago), job type=backup
0000.270 (0) Scheduling a resumption (1) after 300 seconds (1633719605) in case this run gets aborted
0000.305 (0) Checking if we have a zip executable available
0000.307 (0) Testing: /usr/bin/zip
0000.333 (0) Output: zip warning: binziptest/test.zip not found or empty
0000.339 (0) Output: adding: binziptest/subdir1/ (in=0) (out=0) (stored 0%)
0000.342 (0) Output: adding: binziptest/subdir1/subdir2/ (in=0) (out=0) (stored 0%)
0000.343 (0) Output: adding: binziptest/subdir1/subdir2/test.html (in=131) (out=107) (deflated 18%)
0000.344 (0) Output: total bytes=131, compressed=107 -> 18% savings
0000.371 (0) Output: adding: binziptest/subdir1/subdir2/test2.html (in=138) (out=113) (deflated 18%)
0000.374 (0) Output: total bytes=269, compressed=220 -> 18% savings
0000.397 (0) Working binary zip found: /usr/bin/zip
0000.400 (0) Zip engine: found/will use a binary zip: /usr/bin/zip
0000.402 (0) Creation of backups of directories: beginning
0000.407 (0) Beginning creation of dump of plugins (split every: 300 MB)
0003.799 (0) Total entities for the zip file: 1827 directories, 9976 files (0 skipped as non-modified), 134.2 MB
…
0761.335 (1) Beginning creation of dump of uploads (split every: 300 MB)
0761.336 (1) File exists (/home…../updraft/backup_2021-10-09-0455_…..-uploads3.zip.tmp), but was apparently not modified within the last 30 seconds, so we assume that any previous run has now terminated (time_mod=1633719645, time_now=1633720066, diff=421)
…
1182.049 (2) Beginning creation of dump of uploads (split every: 300 MB)
1182.050 (2) File exists (/home…../updraft/backup_2021-10-09-0455_…..-uploads3.zip.tmp), but was apparently not modified within the last 30 seconds, so we assume that any previous run has now terminated (time_mod=1633719645, time_now=1633720487, diff=842)
…
1655.449 (3) Beginning creation of dump of uploads (split every: 300 MB)
1655.451 (3) File exists (/home5…../updraft/backup_2021-10-09-0455_…..-uploads3.zip.tmp), but was apparently not modified within the last 30 seconds, so we assume that any previous run has now terminated (time_mod=1633719645, time_now=1633720960, diff=1315)
…
3995.013 (9) Beginning creation of dump of uploads (split every: 300 MB)
3995.014 (9) File exists (/home5…../updraft/backup_2021-10-09-0455_…..-uploads3.zip.tmp), but was apparently not modified within the last 30 seconds, so we assume that any previous run has now terminated (time_mod=1633719645, time_now=1633723300, diff=3655)
…
4341.921 (10) [Updraftplus] The backup is being aborted for a repeated failure to progress.
4341.922 (10) An error condition has occurred for the first time during this job
4341.923 (10) [Info] Lock option (updraft_lock_de15a811f4bd, wptn_options) released
4341.937 (10) Sending email (‘Incomplete’) report …