David
here is part of the log file (still running). Important: starting a backup seems to crash the server for some time. When I reload the page (since there's no display of the progress bar for some time), I do get a blank page with a server misconfiguration warning.
[ Moderator note: code fixed. Please wrap code in the backtick character or use the code button. That includes log data. ]
Here's the log so far:
0000.000 (0) Opened log file at time: Wed, 26 Aug 2015 23:20:49 +0000 on http://xxxxxxxxxxxx
0000.004 (0) UpdraftPlus WordPress backup plugin (https://updraftplus.com): 1.11.5 WP: 4.3 PHP: 5.5.26 (Linux d112.x-mailer.de 3.2.54-pn #1 SMP Wed Jan 22 10:39:43 CET 2014 i686) MySQL: 5.0.51 Server: Apache safe_mode: 0 max_execution_time: 900 memory_limit: 256M (used: 25.2M | 25.5M) multisite: N mcrypt: Y LANG: ZipArchive::addFile: Y
0000.006 (0) Free space on disk containing Updraft's temporary directory: 93942 Mb
0000.010 (0) Tasks: Backup files: 1 (schedule: weekly) Backup DB: 1 (schedule: weekly)
0000.014 (0) Requesting semaphore lock (fd)
0000.015 (0) Semaphore (fd) was stuck, set lock time to 2015-08-26 23:20:49
0000.017 (0) Semaphore (fd) reset to 1
0000.018 (0) Set semaphore last lock (fd) time to 2015-08-26 23:20:49
0000.019 (0) Semaphore lock (fd) complete
0000.024 (0) Backup run: resumption=0, nonce=7893c5ddd32b, begun at=1440631249 (0s ago), job type=backup
0000.026 (0) Scheduling a resumption (1) after 300 seconds (1440631549) in case this run gets aborted
0000.037 (0) Checking if we have a zip executable available
0000.038 (0) Testing: /usr/bin/zip
0000.039 (0) PHP event: code E_WARNING: popen(cd '/home/xxxxxxxxxx/public_html/xxxxxx/wp-content/updraft'; /usr/bin/zip -n .jpg:.JPG:.jpeg:.JPEG:.png:.PNG:.gif:.GIF:.zip:.ZIP:.gz:.bz2:.xz.:.rar:.RAR:.mp3:.MP3:.mp4:.MP4:.mpeg:.MPEG:.avi:.AVI:.mov:.MOV -v -u -r binziptest/test.zip binziptest/subdir1,r): Resource temporarily unavailable (line 937, wp-content/plugins/updraftplus/class-updraftplus.php)
0000.040 (0) Error: popen failed
0000.042 (0) Testing: /usr/local/bin/zip
0000.043 (0) PHP event: code E_WARNING: popen(cd '/home/xxxxxxxxxxxx/public_html/xxxxxx/wp-content/updraft'; /usr/local/bin/zip -n .jpg:.JPG:.jpeg:.JPEG:.png:.PNG:.gif:.GIF:.zip:.ZIP:.gz:.bz2:.xz.:.rar:.RAR:.mp3:.MP3:.mp4:.MP4:.mpeg:.MPEG:.avi:.AVI:.mov:.MOV -v -u -r binziptest/test.zip binziptest/subdir1,r): Resource temporarily unavailable (line 937, wp-content/plugins/updraftplus/class-updraftplus.php)
0000.044 (0) Error: popen failed
0000.047 (0) Creation of backups of directories: beginning
0000.051 (0) Beginning creation of dump of plugins (split every: 50 Mb)
0000.110 (0) Total entities for the zip file: 440 directories, 2666 files (0 skipped as non-modified), 36.7 Mb
0000.124 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 100 files added (on-disk size: 0 Kb)
0000.132 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 200 files added (on-disk size: 0 Kb)
0000.140 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 300 files added (on-disk size: 0 Kb)
0000.150 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 400 files added (on-disk size: 0 Kb)
0000.159 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 500 files added (on-disk size: 0 Kb)
0000.161 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 500 files added on this batch (6.8 Mb, 2666 files batched, 501 (501) added so far); re-opening (prior size: 0 Kb)
0000.728 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 600 files added (on-disk size: 2543.3 Kb)
0000.738 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 700 files added (on-disk size: 2543.3 Kb)
0000.755 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 800 files added (on-disk size: 2543.3 Kb)
0000.777 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 900 files added (on-disk size: 2543.3 Kb)
0000.797 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1000 files added (on-disk size: 2543.3 Kb)
0000.800 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 500 files added on this batch (6.5 Mb, 2666 files batched, 501 (1002) added so far); re-opening (prior size: 2543.3 Kb)
0001.737 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1100 files added (on-disk size: 5629.7 Kb)
0001.759 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1200 files added (on-disk size: 5629.7 Kb)
0001.781 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1300 files added (on-disk size: 5629.7 Kb)
0001.806 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1400 files added (on-disk size: 5629.7 Kb)
0001.828 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1500 files added (on-disk size: 5629.7 Kb)
0001.830 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 500 files added on this batch (15 Mb, 2666 files batched, 501 (1503) added so far); re-opening (prior size: 5629.7 Kb)
0004.187 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1600 files added (on-disk size: 11397.9 Kb)
0004.209 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1700 files added (on-disk size: 11397.9 Kb)
0004.233 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1800 files added (on-disk size: 11397.9 Kb)
0004.258 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 1900 files added (on-disk size: 11397.9 Kb)
0004.284 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 2000 files added (on-disk size: 11397.9 Kb)
0004.287 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 500 files added on this batch (2.3 Mb, 2666 files batched, 501 (2004) added so far); re-opening (prior size: 11397.9 Kb)
0004.610 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 2100 files added (on-disk size: 12204.9 Kb)
0004.639 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 2200 files added (on-disk size: 12204.9 Kb)
0004.663 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 2300 files added (on-disk size: 12204.9 Kb)
0004.683 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 2400 files added (on-disk size: 12204.9 Kb)
0004.707 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 2500 files added (on-disk size: 12204.9 Kb)
0004.710 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 500 files added on this batch (5.2 Mb, 2666 files batched, 501 (2505) added so far); re-opening (prior size: 12204.9 Kb)
0005.519 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-plugins.zip.tmp: 2600 files added (on-disk size: 14148.5 Kb)
0005.844 (0) Created plugins zip (0) - 14491.8 Kb in 5.8 s (2502.4 Kb/s) (SHA1 checksum: c1103a39ed184a6d78af8819e9afda5ee09b47a1)
0005.848 (0) Beginning creation of dump of themes (split every: 50 Mb)
0005.867 (0) Total entities for the zip file: 80 directories, 1018 files (0 skipped as non-modified), 14.2 Mb
0005.874 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 100 files added (on-disk size: 0 Kb)
0005.884 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 200 files added (on-disk size: 0 Kb)
0005.897 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 300 files added (on-disk size: 0 Kb)
0005.908 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 400 files added (on-disk size: 0 Kb)
0005.917 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 500 files added (on-disk size: 0 Kb)
0005.918 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 500 files added on this batch (7.6 Mb, 1018 files batched, 501 (501) added so far); re-opening (prior size: 0 Kb)
0006.401 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 600 files added (on-disk size: 6946.6 Kb)
0006.414 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 700 files added (on-disk size: 6946.6 Kb)
0006.427 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 800 files added (on-disk size: 6946.6 Kb)
0006.436 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 900 files added (on-disk size: 6946.6 Kb)
0006.445 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-themes.zip.tmp: 1000 files added (on-disk size: 6946.6 Kb)
0006.446 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 500 files added on this batch (6.7 Mb, 1018 files batched, 501 (1002) added so far); re-opening (prior size: 6946.6 Kb)
0007.233 (0) Created themes zip (0) - 10438.6 Kb in 1.4 s (7545.2 Kb/s) (SHA1 checksum: 70a77b808bc80b5157f288e82897dd41e13c5dba)
0007.239 (0) Exclusion option setting (uploads): backup*,*backups,backwpup*,wp-clone
0007.240 (0) Looking for candidates to back up in: /home/xxxxxxxxxxe/public_html/xxxx/wp-content/uploads
0007.242 (0) finding files: 2014: adding to list (1)
0007.244 (0) finding files: 2015: adding to list (2)
0007.246 (0) finding files: profiles: adding to list (3)
0007.247 (0) finding files: themify-builder: adding to list (4)
0007.248 (0) finding files: wpcf7_captcha: adding to list (5)
0007.250 (0) finding files: .htaccess: adding to list (6)
0007.251 (0) Beginning creation of dump of uploads (split every: 50 Mb)
0007.273 (0) Total entities for the zip file: 22 directories, 1432 files (0 skipped as non-modified), 258.5 Mb
0007.278 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads.zip.tmp: 100 files added (on-disk size: 0 Kb)
0007.281 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 25 Mb added on this batch (25 Mb, 1432 files batched, 145 (145) added so far); re-opening (prior size: 0 Kb)
0009.034 (0) A useful amount of data was added after this amount of zip processing: 2.6 s (normalised: 2.6 s, rate: 9792.9 Kb/s)
0009.037 (0) Performance is good - will increase the amount of data we attempt to batch (time=2.6156249046326, normalised_time=2.614147027628, max_time=-1, data points known=0, old_max_bytes=26214400, new_max_bytes=52428800)
0009.042 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads.zip.tmp: 200 files added (on-disk size: 22141.9 Kb)
0009.048 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads.zip.tmp: 300 files added (on-disk size: 22141.9 Kb)
0009.052 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): possibly approaching split limit (30 Mb, 215 (360) files added so far); last ratio: 0.8644; re-opening (prior size: 22141.9 Kb)
0011.130 (0) Zip size is at/near split limit (46.8 Mb / 50 Mb) - bumping index (from: 0)
0011.447 (0) Created uploads zip (0) - 47912.1 Kb in 3.9 s (12352.1 Kb/s) (SHA1 checksum: 59c207888b025426cdfbc5cea0300c8696f3968a)
0011.451 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads2.zip.tmp: 400 files added (on-disk size: 0 Kb)
0011.455 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads2.zip.tmp: 500 files added (on-disk size: 0 Kb)
0011.460 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads2.zip.tmp: 600 files added (on-disk size: 0 Kb)
0011.463 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 50 Mb added on this batch (50.7 Mb, 1432 files batched, 285 (645) added so far); re-opening (prior size: 0 Kb)
0014.927 (0) A useful amount of data was added after this amount of zip processing: 4.5 s (normalised: 4.4 s, rate: 11518.5 Kb/s)
0014.929 (0) Performance is good - but we will not increase the amount of data we batch, as we are already at the present limit (time=4.5085179805756, normalised_time=4.4450062638779, max_time=-1, data points known=0, max_bytes=52428800)
0014.935 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): possibly approaching split limit (4.8 Mb, 27 (672) files added so far); last ratio: 0.894; re-opening (prior size: 46429 Kb)
0015.582 (0) Zip size is at/near split limit (49 Mb / 50 Mb) - bumping index (from: 1)
0015.934 (0) Created uploads zip (1) - 50169.7 Kb in 4.1 s (12131.3 Kb/s) (SHA1 checksum: 3bdfda5fd6733fc484888a311f77168814940d6b)
0015.938 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads3.zip.tmp: 700 files added (on-disk size: 0 Kb)
0015.943 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads3.zip.tmp: 800 files added (on-disk size: 0 Kb)
0015.948 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads3.zip.tmp: 900 files added (on-disk size: 0 Kb)
0015.954 (0) Zip: backup_2015-08-27-0020_blogsite_7893c5ddd32b-uploads3.zip.tmp: 1000 files added (on-disk size: 0 Kb)
0015.959 (0) Adding batch to zip file (UpdraftPlus_ZipArchive): over 50 Mb added on this batch (50.3 Mb, 1432 files batched, 394 (1066) added so far); re-opening (prior size: 0 Kb)