I just discovered an error, that a.) does not allow “Updraftplus” to complete backups and b.) seems to produce a PHP error, that I can see in the PHP error log of BPSPro. First I thought, this was caused by BSPPro security plugin blocking some function of Updraftplus, but after completely deinstalling BPSPro and reinstalling Updraftplus (incl. wiping settings), the problem persists.
The php error reads like this and is repeatedly shown in the error log:
PHP Warning: popen(cd '/home/xxxxxxxxxxx/public_html/xxxx/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 in /home/xxxxxxxx/public_html/xxxx/wp-content/plugins/updraftplus/class-updraftplus.php on line 937
Updraftplus has been working flawlessly since I installed it a year ago, the error seem to have slipped in since about 1 – 2 months or so, without me noticing it. I was running the 4.2.4 Version of wordpress, now I updated to 4.3, the error persists
As I can see via ftp-ing into my server, updraftplus creates the first set of smaller zip-files properly in its updraft-folder, but once it starts zipping up the largest set (the directory “uploads”) it stops adding chunks to that very zip file at about 120 MB (final zip-file should have about 230MB). So this happens BEFORE anything is uploaded to google drive (remote storage). Since I have not hugely altered my website for a few months, the "uploads" directory has not increased in size very much - so I guess, since backup has worked, that size might not the culprit here.
Would you mind me helping to sort out, what measures to take and how to correct the problem?
https://wordpress.org/plugins/updraftplus/