Monthly Archives: November 2007

mysql-5.1.22-stew2

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New:

  • Updated NDB Compressed LCP and BACKUP patches (now with O_DIRECT support)
  • InnoDB patch for Windows that should give ~5x improvement on commits/sec (Bug31876)
  • Everything in current telco-6.3 tree (ndb ~6.3.5)
    • Lots of NDB improvements and new features over regular 5.1.
        • WL3686 Remove read before update
        • WL2680 NDB Batched Update
        • WL2679 NDB Batched Delete
        • WL4108 NDB Handler statistics
        • WL4096 NDB Realtime performance and settings
        • WL3126 and WL3127 Client and Replication bind address
        • NDB Online ALTER TABLE ADD COLUMN
        • NDB Multi-Master replication conflict resolution (limitations apply :)
        • NDB prepare for endian independence
        • NDB micro-gcp (reduces replication lag)
        • NDB SendBuffer throttling
        • NDB MySQL Server TC selection (improve performance)

    Old (In previous patchset too):

    • Remove ndb_use_exact_count giving up to 300% performance improvements on Joins in NDB
    • INFORMATION_SCHEMA table for NDB node status
    • NDB Cluster Log as CSV file (suitable for ENGINE=CSV)
    • Skeleton Engine (build from storage/skeleton)
    • MyHTTP Engine (build from storage/myhttp)
    • PBXT Engine (build from storage/pbxt)
    • Make ARCHIVE faster at compressing (at slight expense of space usage)

    Availability:

    • Patch (apply with -p1 to mysql 5.1.22) 4.0 MB
      • Applies cleanly on a BK source tree… a few files don’t exist in the tarball on dev.mysql.com (due to the way it’s built)… so when asked for “file to patch” just hit enter and then choose y to skip that patch.
    • README (list of patches, descriptions) 13kb
    • quilt patch series tarball (individual patches) 4.1MB
    • diffstat 228k

    Feedback much appreciated.

    Speaking at VITTA (Victorian IT Teachers Association Inc) Conference

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    I’m speaking at the upcoming VITTA conference.

    Title:MySQL database administration for non DBAs

    Abstract: MySQL is incredibly ubiquitous. MySQL database administrators are not everywhere; MySQL is. Often MySQL is run to power a small web site or two, an application or two, or run on a machine purely for someone else’s use (and the install made MySQL just work so you don’t have to care). This session goes over the things you need to know about your MySQL installations to keep them healthy without burdening you with work, including MySQL Basics, installation, security, backup, restore, performance and upgrades.

    When: 12:15 PM, Wednesday 21 November 2007

    Should be fun!