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10 Newer Entries Showing entries 91 to 100 of 890 10 Older Entries

Displaying posts with tag: Uncategorized (reset)

MySQL yum repositories
Employee_Team +14 Vote Up -0Vote Down

I think most people will agree that downloading RPMs from a website is kind of old fashioned when there are yum repos. After a number of user requests, we have now launched the official yum repos for MySQL.

Can’t wait? Neither can I. On a fresh install:

  • Download a setup package for your distribution from http://dev.mysql.com/downloads/repo
  • yum localinstall mysql-community-release-distro-release.noarch.rpm
  • yum update
  • yum install mysql-community-server
  • This works for fresh installs. If you’re upgrading from an older version, read about upgrading first.

    What’s in the repo?


      [Read more...]
    MySQL 5.6: no testcases for non-crashing bugs, either (and an incomplete bugfix)
    +5 Vote Up -2Vote Down

    I normally don’t write such posts, but this time I’ll do a little whining. I was looking at MySQL’s Bug#69581, which was also filed against MariaDB as MDEV-5102. With some effort (little for this particular bug), one can find out that Bug#69581’s counterpart in Oracle’s internal bug database is Bug#16862316, and the fix is in revision 5366 in MySQL 5.6.14.

    There are two problems, though:

    • The fix doesn’t include a testcase. We know, Oracle doesn’t publish testcases for crashing bugs, with a justification that it’s for security reasons. However, this bug is not a crashing
      [Read more...]
    Studying for the New MySQL 5.6 DBA Exam
    Employee +1 Vote Up -0Vote Down

    I have have been receiving a lot of questions about the new MySQL 5.6 DBA exam. Sadly I can not answer a lot of the questions until after my exam in early November. However I do know some good things about the new exams.

    First — No True or False questions. Oracle has set the standards on that policy and I had to update the ol’ 5.0 exams to make certain there the T/F questions were removed. Why is this important? Don’t you have a fifty/fifty chance on T/F questions? The trouble is that some of these questions were a wee bit tricky and needed parsing plus a full understanding of the subject to get them right. For fairness, it is easy to do without the T/F questions.

    Second — No more pick up to N answers. Once again, for fairness.

    Third — One exam for the certification. In the past the

      [Read more...]
    EXPLAIN UPDATE/DELETE/INSERT in MySQL and MariaDB
    +1 Vote Up -0Vote Down

    MySQL 5.6 added support for EXPLAIN INSERT/UPDATE/DELETE. MySQL 5.7 made some improvements to EXPLAIN code. Also, 5.7 added support for EXPLAIN FOR CONNECTION, which looks very similar to MariaDB’s SHOW EXPLAIN. I was working on putting EXPLAIN INSERT/UPDATE/DELETE into MariaDB 10.0, so I’ve dug up some details and thought I’d share them:

    EXPLAIN UPDATE/DELETE

    EXPLAIN UPDATE looks like regular EXPLAIN SELECT:

    MySQL [dbt3sf1]> explain update orders set o_orderpriority='1-URGENT' where o_orderDATE='1998-07-21';
    +----+-------------+--------+-------+---------------+---------------+---------+-------+------+-------------+
    | id | select_type | table  | type  | possible_keys | key           | key_len | ref   | rows | Extra       |
    +----+-------------+--------+-------+---------------+---------------+---------+-------+------+-------------+
    |  1 | SIMPLE      | orders | range |
      [Read more...]
    MEM 3.0: Getting started
    Employee +0 Vote Up -0Vote Down

    Time to install MEM 3.0, and get its built-in agent working.

    [ If you want some tips on What's New, have a look here. ]

    I’ve downloaded the Monitor Server and the agent zipped s/w for Linux & Win from http://edelivery.oracle.com:

    mysqlmonitor-3.0.0.2887-linux-x86-installer.bin
    mysqlmonitoragent-3.0.0.2887-linux-glibc2.3-x86-32bit-installer.bin
    mysqlmonitoragent-3.0.0.2887-windows-installer.exe
    

    The Monitor install

    So, on my Oracle Linux machine:

    ./mysqlmonitor-3.0.0.2887-linux-x86-installer.bin

    It all installs fine. No issues, if you’re used to MEM 2.3.

    Double check your configuration_report.txt :

    MySQL
      [Read more...]
    MEM 3.0: Getting started
    Employee +1 Vote Up -0Vote Down

    Time to install MEM 3.0, and get its built-in agent working.

    [ If you want some tips on What's New, have a look here. ]

    I’ve downloaded the Monitor Server and the agent zipped s/w for Linux & Win from http://edelivery.oracle.com:

    mysqlmonitor-3.0.0.2887-linux-x86-installer.bin
    mysqlmonitoragent-3.0.0.2887-linux-glibc2.3-x86-32bit-installer.bin
    mysqlmonitoragent-3.0.0.2887-windows-installer.exe
    

    The Monitor install

    So, on my Oracle Linux machine:

    ./mysqlmonitor-3.0.0.2887-linux-x86-installer.bin

    It all installs fine. No issues, if you’re used to MEM 2.3.

    Double check your configuration_report.txt :

    MySQL
      [Read more...]
    MySQL Tech Tour @Barcelona, 7th Nov.
    Employee +0 Vote Up -0Vote Down

    We’re on the move again. Come and join us on the 7th of November at the Oracle office in Barcelona. Find out more details about what was announced at MySQL Connect, as well as what’s next…

    For more information about this event please visit the link below:

    http://www.oracle.com/us/dm/29173-emeafm13045970mpp010-oem-2020763-es.html


    MySQL Tech Tour @Barcelona, 7th Nov.
    Employee +0 Vote Up -0Vote Down

    We’re on the move again. Come and join us on the 7th of November at the Oracle office in Barcelona. Find out more details about what was announced at MySQL Connect, as well as what’s next…

    For more information about this event please visit the link below:

    http://www.oracle.com/us/dm/29173-emeafm13045970mpp010-oem-2020763-es.html


    MySQL Connect 2013: ps_tools
    Employee_Team +2 Vote Up -0Vote Down

    During my talk and hands on labs at MySQL Connect 2013 I used several views, functions, and procedures from ps_helper and ps_tools.

    The slides from the two talks can be downloaded from Thanks For Attending MySQL Connect or from the MySQL Connect 2013 Content Catalogue.

    You can read more about ps_helper on Mark Leith’s blog and you can download ps_helper from github.

    To get ps_tools, download

      [Read more...]
    Zendcon
    Employee +0 Vote Up -0Vote Down

    Zendcon is a difficult conference if you work in an exhibit hall booth. At other shows, attendees ask general questions about MySql or how Oracle is guiding products. Zendcon is much more pointed. When is 5.7 multisource relication going to be available? How does Visual Explain work? How can I make sure replication goes back to semi-sync after going async? It is a great show but the level of questions are a notch or two higher than most other shows.



      [Read more...]
    10 Newer Entries Showing entries 91 to 100 of 890 10 Older Entries

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