MySQL Cluster 7.4.20 has been released
Dear MySQL Users,
MySQL Cluster is the distributed, shared-nothing variant of MySQL.
This storage engine provides:
- In-Memory storage - Real-time performance
- Transparent Auto-Sharding - Read & write scalability
- Active-Active/Multi-Master geographic replication
- 99.999% High Availability with no single point of failure
and on-line maintenance
- NoSQL and SQL APIs (including C++, Java, http, Memcached
and JavaScript/Node.js)
MySQL Cluster 7.4 makes significant advances in performance;
operational efficiency (such as enhanced reporting and faster restarts
and upgrades) and conflict detection and resolution for active-active
replication between MySQL Clusters.
MySQL Cluster 7.4.20, has been released and can be downloaded from
http://www.mysql.com/downloads/cluster/
where you will also find Quick Start guides to help you get your
first MySQL Cluster database up and running.
The release notes are available from
http://dev.mysql.com/doc/relnotes/mysql-cluster/7.4/en/index.html
MySQL Cluster enables users to meet the database challenges of next
generation web, cloud, and communications services with uncompromising
scalability, uptime and agility.
More details can be found at
http://www.mysql.com/products/cluster/
Enjoy !
==============================================================================
Changes in MySQL NDB Cluster 7.4.20 (5.6.40-ndb-7.4.20)
(2018-04-20, General Availability)
MySQL NDB Cluster 7.4.20 is a new release of MySQL NDB
Cluster 7.4, based on MySQL Server 5.6 and including features
in version 7.4 of the NDB storage engine, as well as fixing
recently discovered bugs in previous NDB Cluster releases.
Obtaining MySQL NDB Cluster 7.4. MySQL NDB Cluster 7.4
source code and binaries can be obtained from
http://dev.mysql.com/downloads/cluster/.
For an overview of changes made in MySQL NDB Cluster 7.4, see
What is New in NDB Cluster 7.4
(http://dev.mysql.com/doc/refman/5.6/en/mysql-cluster-what-is-new-7-4.html).
This release also incorporates all bug fixes and changes made
in previous NDB Cluster releases, as well as all bug fixes
and feature changes which were added in mainline MySQL 5.6
through MySQL 5.6.40 (see Changes in MySQL 5.6.40
(2018-04-19, General Availability)
(http://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-40.html)).
Bugs Fixed
* NDB Cluster APIs: The maximum time to wait which can be
specified when calling either of the NDB API methods
Ndb::pollEvents() or pollEvents2() was miscalculated such
that the method could wait up to 9 ms too long before
returning to the client. (Bug #88924, Bug #27266086)
* Race conditions sometimes occurred during asynchronous
disconnection and reconnection of the transporter while
other threads concurrently inserted signal data into the
send buffers, leading to an unplanned shutdown of the
cluster.
As part of the work fixing this issue, the internal
templating function used by the Transporter Registry when
it prepares a send is refactored to use
likely-or-unlikely logic to speed up execution, and to
remove a number of duplicate checks for NULL. (Bug
#24444908, Bug #25128512)
References: See also: Bug #20112700.
On Behalf of Oracle/MySQL Release Engineering Team,
Daniel Horecki
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MySQL Cluster 7.4.20 has been released
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April 20, 2018 08:56AM
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