I have 2 websites, install on 2 separate servers, but both are same configaurtion. The backup module works well with 1 and not work on the other site ?!
Nothing happens without any error message. My hosting have no temp folder, but it has log folder, and i see a log file:

[10-Jul-2016 02:43:02 Asia/Ho_Chi_Minh] PHP Fatal error: Maximum execution time of 30 seconds exceeded in /home/u399425939/public_html/drp/modules/system/system.tar.inc on line 1432
[10-Jul-2016 02:43:02 Asia/Ho_Chi_Minh] PHP Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000]: General error: 2006 MySQL server has gone away' in /home/u399425939/public_html/drp/includes/database/database.inc:2171
Stack trace:
#0 /home/u399425939/public_html/drp/includes/database/database.inc(2171): PDOStatement->execute(Array)
#1 /home/u399425939/public_html/drp/includes/database/database.inc(683): DatabaseStatementBase->execute(Array, Array)
#2 /home/u399425939/public_html/drp/includes/database/mysql/query.inc(36): DatabaseConnection->query('INSERT INTO {wa...', Array, Array)
#3 /home/u399425939/public_html/drp/modules/dblog/dblog.module(163): InsertQuery_mysql->execute()
#4 [internal function]: dblog_watchdog(Array)
#5 /home/u399425939/public_html/drp/includes/module.inc(922): call_user_func_array('dblog_watchdog', Array)
#6 /home/u399425939/public_html/drp/includes/bootstrap.inc(1740): module_invoke('dblog', 'watchdog', Array)
#7 /home/u399425939/public_html/drp/sites/all/modules/backup_migrate/backup_migrate.module(1770): watchdog(' in /home/u399425939/public_html/drp/includes/database/database.inc on line 2171

At this topic Full site backup (entire site, code, db, files) using default settings not working some peoples said that they have a huge file in temp folder but my hosting doesn't have that.

Comments

D_comp created an issue. See original summary.

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Issue summary: View changes
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couturier CreditAttribution: couturier as a volunteer commented
Status: Active » Closed (works as designed)

It sounds like you might have a server issue. Please upgrade to 7.x-3.2 and re-try and open this issue again if you are still having problems. Also check that your host is optimized for the version of Drupal you are using.