Here's a curiosity ... running a
mysqldump as a crontab job, nothing happens on one of our servers. Now I HAVE included the full path to the executable file in my crontab line, and I have redirected the output to a full path ... so something else is tripping it up.
What do I do? An Internet search and I discover that I'm not the first to have the problem (I didn't expect that I was) and that although no definite solution has been found on the places that I'm visiting (someone ditched MySQL and went to PostGRESql instead!!). it's suspected as being something to do with the rudimentary shell environment that cron provides.
I'm on a time-scale today, so rather that spend a long time finding out what was happening, I decided to spend a shorter time achieving what I needed in another way (a.k.a. a work around!). By writing a short script that includes the MySQLdump, I can get the MySQLdump to run under a full
bash shell. And I can easily call up that script from cron.
Problem not explained / solved exactly ... but I have achieved what I need.
(written 2009-06-30, updated 2009-07-01)
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
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[401] What is an SQL injection attack? - (2005-08-02)
[535] MySQL permissions and privileges - (2005-12-20)
[647] Checking for MySQL errors - (2006-03-15)
[947] What is an SQL injection attack? - (2006-11-27)
[1131] MySQL - Password security (authentication protocol) - (2007-04-02)
[2204] Images in a database? How big is a database? (MySQL) - (2009-05-28)
[2647] Removing duplicates from a MySQL table - (2010-02-22)
[3270] SQL - Data v Metadata, and the various stages of data selection - (2011-04-29)
[4390] Checking MySQL database backups have worked (not failed) - (2015-01-10)
[4406] Fixing damaged MySQL tables - Error 1712 and Error 2013 - (2015-01-25)
[4481] Extracting data from backups to restore selected rows from MySQL tables - (2015-05-01)
[4491] Web Server Admin - some of those things that happen, and solutions - (2015-05-10)
[4493] Forgotten / lost MySQL root password - (2015-05-16)
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[644] Using a MySQL database from Perl - (2006-03-13)
[663] Python to MySQL - (2006-03-31)
[723] Viewing images held in a MySQL database via PHP - (2006-05-17)
[1381] Using a MySQL database to control mod_rewrite via PHP - (2007-10-06)
[1450] Easy selection of multiple SQL conditions from PHP - (2007-11-30)
[1518] Downloading data for use in Excel (from PHP / MySQL) - (2008-01-25)
[1561] Uploading to a MySQL database through PHP - examples and common questions - (2008-03-02)
[1885] Hiding a MySQL database behind a web page - (2008-11-15)
[2381] Checking the database connection manually - (2009-08-28)
[2745] Connecting Python to sqlite and MySQL databases - (2010-04-28)
[2790] Joining a MySQL table from within a Python program - (2010-06-02)
[3035] How to display information from a database within a web page - (2010-11-07)
[3099] Perl - database access - DBD, DBI and DBIx modules - (2010-12-22)
[3447] Needle in a haystack - finding the web server overload - (2011-09-18)
[3455] MySQL, MySQLi, PDO or something else - how best to talk to databases from PHP - (2011-09-24)
[4436] Accessing a MySQL database from Python with mysql.connector - (2015-02-21)
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