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Displaying posts with tag: Announcements (reset)

MySQL Workbench 6.0.4 BETA 3 released
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The MySQL Developer Tools team is pleased to announce the availability of the third beta release of MySQL Workbench 6.0. MySQL Workbench 6.0 is the new major update of the Development and Administration tool for MySQL. This release includes almost 200 bug fixes (~40 since 6.0.3), 30 new features and a new redesigned UI. As a beta, this release is not suitable for production use.  Please test and file your bug reports at http://bugs.mysql.com

As always, MySQL Workbench is natively available on Windows, Mac, Linux.

Improvements in MySQL Workbench 6.0:

  • a new redesigned Home screen
  • the SQL Editor and Server Administration UIs were merged into a single connection specific interface, allowing for quick access to administration features while simplifying the location of specific features
  • improved model
  [Read more...]
Comparing Amazon Redshift and Shard-Query features and performance
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What is Amazon Redshift and how does it compare to Shard-Query?

Amazon Redshift is the petabyte scale data warehousing system built by Amazon.   It is (currently at the time of this writing)  a beta-quality data warehouse as a service platform hosted in the AWS cloud.   It has has been built from ParAccel technology.  Amazon is an investor in ParAccel.

Amazon Redshift works similarly to Shard-Query.   Both systems allow you to spread data over many machines and treat them as one logical machine.  This architecture  is called “shared nothing” and it has developed the short name “sharding”.

Both systems essentially provide a “virtual database” composed of smaller database.  It is like a RAID array of databases.  You could think of it as a “redundant array of independent databases”

  [Read more...]
MySQL Workbench 6.0.3 BETA 2 released
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The MySQL Developer Tools team is pleased to announce the availability of the second beta release of MySQL Workbench 6.0. MySQL Workbench 6.0 is the new major update of the Development and Administration tool for MySQL. This release includes over 150 bug fixes (~40 since 6.0.2), 30 new features and a new redesigned UI. As a beta, this release is not suitable for production use.  Please test and file your bug reports at http://bugs.mysql.com

As always, MySQL Workbench is natively available on Windows, Mac, Linux.

Improvements in MySQL Workbench 6.0:

  • a new redesigned Home screen
  • the SQL Editor and Server Administration UIs were merged into a single connection specific interface, allowing for quick access to administration features while simplifying the location of specific features
  • improved model
  [Read more...]
Slides from Percona MySQL University Portland – Conquering “Big Data”: An introduction to Shard-Query
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I posted the slides to my talk on SlideShare.  This talk includes high level information about Shard-Query, why it is needed, and the kind of schema it works well with.
http://www.slideshare.net/MySQLGeek/introduction-to-shard-query-m

You can also find a more technical information about Shard-Query and the how it works here:

Divide and conquer in the cloud from Justin Swanhart


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MySQL Workbench 6.0.2 BETA1 released
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The MySQL Developer Tools team is pleased to announce the availability of the first beta release of MySQL Workbench 6.0.

MySQL Workbench 6.0 is the new major update of the Development and Administration tool for MySQL. This release includes over 100 bug fixes, 30 new features and a new redesigned UI. As a beta, this release is not suitable for production use.  Please test and file your bug reports at http://bugs.mysql.com

As always, MySQL Workbench is natively available on Windows, Mac, Linux.

Improvements in MySQL Workbench 6.0:

  • a new redesigned Home screen
  • the SQL Editor and Server Administration UIs were merged into a single connection specific interface, allowing for quick access to administration features while simplifying the location of specific
  [Read more...]
MySQL Workbench 6.0.2 BETA 1 released
Employee_Team +1 Vote Up -0Vote Down
The MySQL Developer Tools team is pleased to announce the availability of the first beta release of MySQL Workbench 6.0. MySQL Workbench 6.0 is the new major update of the Development and Administration tool for MySQL. This release includes over 100 bug fixes, 30 new features and a new redesigned UI. As a beta, this release is not suitable for production use.  Please test and file your bug reports at http://bugs.mysql.com

As always, MySQL Workbench is natively available on Windows, Mac, Linux.

Improvements in MySQL Workbench 6.0:

  • a new redesigned Home screen
  • the SQL Editor and Server Administration UIs were merged into a single connection specific interface, allowing for quick access to administration features while simplifying the location of specific features
  • improved model Synchronization, lets
  [Read more...]
Bulk insert into tables in sorted order to avoid deadlocks
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Shard-Query inserts data into a “coordinator” table when answering queries.   When there is a GROUP BY on the original query, the coordinator table contains a UNIQUE KEY over the GROUP BY attributes.   Shard-Query uses INSERT .. ON DUPLICATE KEY UPDATE in combination with bulk insert (insert into … values (),(),() ) when inserting into the table.

For what would normally be efficiency sake, Shard-Query sends queries to the shards using ORDER BY NULL which disables the filesort operation. Of course, this often results in the rows being sent back from the shards in random order.

Because the results are in random order, the bulk insertion that the worker does into the coordinator table can deadlock with other worker threads when using InnoDB or TokuDB as the coordinator table. Right now I’ve just been using MyISAM for the

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Fix for INFORMATION_SCHEMA.PARTITIONS losing table stats
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Here is a fix for the MySQL/TokuDB/MariaDB bug I reported earlier today.  I think this fix is correct (it is only one line) but I don’t delve into the storage engine very often (and particularly not into ha_partition.cc) so I think it would be good to wait for Oracle (or Percona, MariaDB, or Tokutek) to validate that it is correct before using it.

diff -u ha_partition.cc /tmp/ha_partition.cc 
--- ha_partition.cc 2013-04-05 05:27:18.000000000 -0700
+++ /tmp/ha_partition.cc 2013-05-27 02:45:01.680676228 -0700
@@ -6455,9 +6455,11 @@
void ha_partition::get_dynamic_partition_info(PARTITION_STATS *stat_info,
uint part_id)
{
+
handler *file= m_file[part_id];
DBUG_ASSERT(bitmap_is_set(&(m_part_info->read_partitions), part_id));
- file->info(HA_STATUS_CONST | HA_STATUS_TIME | HA_STATUS_VARIABLE |
+ 
+ info(HA_STATUS_CONST |
  [Read more...]
Shard-Query 2.0 performance on the SSB with InnoDB on Tokutek’s MariaDB distribution
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Scaling up a workload to many cores on a single host

Here are results for Shard-Query 2.0 Beta 1* on the Star Schema Benchmark at scale factor 10.  In the comparison below the “single threaded” response times for InnoDB are the response times reported in my previous test which did not use Shard-Query.

Shard-Query configuration

Shard-Query has been configured to use a single host.  The Shard-Query configuration repository is stored on the host.  Gearman is also running on the host, as are the Gearman workers.  In short, only one host is involved in the testing.

The

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Shard-Query 2.0 Beta 1 released
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It is finally here.  After three years of development, the new version of Shard-Query is finally available for broad testing.

This new version of Shard-Query is vastly improved over previous versions in many ways.  This is in large part due to the fact that the previous version of Shard-Query (version 1.1) entered into production at a large company.  Their feedback during implementation was invaluable in building the new Shard-Query features.   The great thing is that this means that many of the new 2.0 features have already been tested in at least one production environment.

This post is intended to highlight the new features in Shard-Query 2.0.  I will be making posts about individual features as well as posting benchmark results.

  [Read more...]
10 Newer Entries Showing entries 31 to 40 of 202 10 Older Entries

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