I had the same issue,
Interested to see what the answer is.
I was given the following answer by my Host, anyone know if it is right?
“Package log was not informative and didn’t provided us with any error.
However, we found the following errors in server logs:
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[Sat Mar 26 14:50:31.113733 2016] [lsapi:error] [pid 899787:tid 140108898977536] [client 146.198.145.230:55639] [host ……………] Error receiving response: ReceiveResponse: receive pkg hdr failed: ReceivePkgHdr: nothing to read from backend socket, referer: http://……………?page=duplicator&tab=new3
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2016-03-26 14:50:31 292828 [Warning] Aborted connection 260216 to db: ‘………..’ user: ‘….’ host: ‘localhost’ (Got an error reading communication packets)
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As you can see, “max_allowed_packet” limit was exceeded.
This is most likely related to a large SQL file that cannot be processed by Apache in shared hosting environment, we would also like to notify you that we don’t increase the “max_allowed_packet” value on the shared servers for security reason.”
The brilliant guys at Jolt Host persevered and found the solution for me.
“–noticed the following error message: “PHP MAX MEMORY: Unabled to set php memory_limit”
We then have accessed your account’s cPanel control panel >> “Software” section >> clicked the “Select PHP Version” icon >> chose alternative PHP 5.5 version from the drop-down menu >> clicked the “Set as current” button >> clicked the “Switch To PHP Options” link >> max_execution_time value was increased from 30 to 300, max_input_vars value was increased from 1000 to 2000, memory_limit value was increased from 128M to 512M, post_max_size value was increased from 8M to 128M and upload_max_filesize value was increased from 2M to 512M >> clicked the “Save” button.”
Everything works for me now. Hope this helps others.
Thanks derrickmg. I will check out what version of PHP is running on both web hosts and see what options are available. I really appreciate you posting your solution. It will be great if it works for my servers as well!
Thanks for posting your work-a-round Derrick!
Fortunately I’ve been able to reduce my backup size from 240MB down to 210MB, and Duplicator seems to be working for now, but not a good long-term fix.
I’m already running PHP 5.5 with the following settings:
upload_max_filesize = 10M
post_max_size = 105M
max_execution_time = 500
max_input_time = 500
memory_limit = 256M
According to the logs, the Duplicator process halts just before the last “Complete” line. Perhaps there will be a fix for whatever the issue is before my backup hits 240MB again.
On some systems max_execution_time can be overridden by the web server. So even though PHP is allows to run for 500 seconds. Apache is only allowed to run for 30 seconds. In some causes because PHP runs as a process in Apache then it is killed. On other setups PHP will continue to run in the background but the web page will show a timeout…
