mysqldump: Couldn't execute 'show create table `general_log`': SHOW command denied to user 'user'@'localhost' for table 'general_log' (1142) - Solution

mysqldump: Couldn't execute 'show create table `general_log`': SHOW command denied to user 'user'@'localhost' for table 'general_log' (1142)

One of my clients almost found out the hard way, here is an unlikely situation that happened.

1.) Years ago the client had another VPS to which they backed up a BLOG nightly to an .sql file, what they forgot is that the file also contained all databases (they used the --all-databases option but forgot).  So imagine the surprise when they ran this .sql file on a production server, thinking they're just importing their old BLOG.  In fact the "mysql" table was part of that backup since it was --all-databases, and it flushed the mysql table with entries from their old VPS.  As you can imagine this would effect every database driven application including websites and even email etc...

2.) They were lucky because I was able to see what had happened and they haven't run "flush privileges" so the original mysql database was in memory.  I thought I would just restore backups they had taken so no problem right ?  Their dumps weren't working right but fortunately I was able to take a raw /var/lib/mysql backup from their filesystem and get up on another VPS and dump the original mysql db from there and restore it. 

3.) No, every database except "mysql' was backed up successfully, the user they had to dump all the databases needed one specific privilege to be able to dump mysql. 

The solution for the above error:

ADD the privileges "Show_db" to the user and then it will work.
 


Tags:

mysqldump, couldn, execute, general_log, user, localhost, solutionmysqldump, unlikely, vps, blog, nightly, sql, contained, databases, server, importing, quot, mysql, flushed, entries, database, websites, email, etc, haven, flush, privileges, restore, backups, dumps, weren, fortunately, var, lib, filesystem, db, successfully, show_db,

Latest Articles

  • virt-resize: error: libguestfs error: could not create appliance through libvirt.
  • Asterisk Does Not Retry When Authentication Fails
  • Linux Debian Ubuntu How To Install PEPPER Faster and Latest Adobe Flash Player in Firefox
  • How To Speed Up Linux Ubuntu and Debian Based Computers By Improving CPU Performance and Changing the CPU Governor
  • Convert data or file to base64 on a single line
  • Linux Mint Ubuntu Debian radeon slow 2D performance issues radeon_dp_aux_transfer_native: 158 callbacks suppressed
  • mdadm: super0.90 cannot open /dev/sdb1: Device or resource busy mdadm: /dev/sdb1 is not suitable for this array.
  • How To Install NextCloud on Centos 7 and Centos 8
  • AH01630: client denied by server configuration:
  • ERROR: Could not find a version that satisfies the requirement PIL (from versions: none) ERROR: No matching distribution found for PIL
  • ZTE Camera Cannot Work unable to connect to camera. Camera has been disabled becaue of security policies or is being used by other apps
  • QEMU KVM how to boot off a physical CD/DVD/BDROM Drive
  • How To Install OpenProject on Centos 7 Step-by-Step Guide
  • Ubuntu Debian Linux Cannot Install Wine Solution - wine1.6 : Depends: wine1.6-i386 (= 1:1.6.2-0ubuntu14.2) but it is not installable wine1.4 : Depends: wine1.6 but it is not going to be installed
  • How To Install python 3.4 3.5 and up on Linux with wine - Working Solution
  • using Xvfb on virtual remote ssh server to have X graphical programs work
  • ssh Received disconnect from port 22:2: Too many authentication failures
  • named bind errors - DNSKEY: unable to find a DNSKEY which verifies the DNSKEY RRset and also matches a trusted key for '.'
  • OpenVZ vs LXC DIR mode poor security in LXC
  • httpd: Syntax error on line 221 of /etc/httpd/conf/httpd.conf: Syntax error on line 6 of /etc/httpd/conf.d/php.conf: Cannot load modules/libphp5.so into server: /lib64/libresolv.so.2: symbol __h_errno, version GLIBC_PRIVATE not defined in file libc.s