ERROR 1040 (HY000): Too many connections
An application might face this issue when all the defined max_connections parameter value is exhausted. 
mysqld reserve a  +1 connection (i.e., max_connections + 1) for the user who is having the SUPER privilege. 
When this issue appears, Only the user with the SUPER privileges can be connected if any other user who has SUPER privileges is not already connected to the database and we have reached max_connections. 

1. Always make sure to DON'T give the SUPER privilege to any application user or any user which is being used inside the scripts. Because if that user has …

NOTE [2019-05-18]: Debian/Ubuntu 5.6.44-85.0-1 packages were replaced today in the repositories with the 5.6.44-85.0-2 because they would reset the root password to an empty string during the upgrade on Debian/Ubuntu (bug #5640). If you upgraded packages on Debian/Ubuntu to the 5.6.44-85.0-1 please upgrade to 5.6.44-85.0-2 and re-set your root password.

Percona announces the release of Percona Server for MySQL 5.6.44-85.0 on May 17, 2019. Download the latest version from the Percona web …

So, typically, a Percona Live (or MySQL User) Conference blog would start off with some mention of the fact that it’s great to be meeting up again in Santa Clara, California, the birthplace of the MySQL User Conference, and a continuous fixture on the yearly MySQL community agenda.

But no, not this time!

On this occasion, the Percona Live Conference blog starts off by pointing out that for the first time since its inception (as far as I can recollect), the MySQL User Conference, i.e. Percona Live Conference (in North America) doesn’t take place in Santa Clara, but rather in Austin, Texas.

Never having been to Texas before myself, I’m looking forward to that innovation, discovering the new surroundings and seeing whether that changes anything or not to the familiar “feel” of a Percona Live / MySQL User Conference.

By the way, there’s still time to …

MySQL Router 8.0.16 Key features

• log-rotation via SIGHUP
• HTTP server plugin
• flexible support for single/multi-PRIMARY Group Replication

Logrotation via SIGHUP

Sending a SIGHUP signal to the router process will now close and reopen the logfile.

It allows the integration with the logrotate to rotate and compress the Router’s logfiles.…

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To operate more easily a MySQL Group Replication (InnoDB Cluster), the Group Replication plugins provides some UDFs.

If you have read the recent article from Tiago Vale about the Group Replication Communication Protocol, you may have heard about two new UDFs allowing to get or set  the communication protocol.

So what are all the UDFs provided with the Group Replication and what’s their purpose ?

SELECT UDF_NAME FROM performance_schema.user_defined_functions 
WHERE UDF_NAME LIKE 'group_repl%';
+-------------------------------------------------+
 | UDF_NAME                                        |
 +-------------------------------------------------+
 | group_replication_get_communication_protocol    |
 | group_replication_get_write_concurrency         |
 | group_replication_set_as_primary                | …

Percona Live provides the open source database community with an opportunity to discover and discuss the latest open source trends, technologies, and innovations. The conference includes the best and brightest innovators and influencers in the open source database industry.

This year, Percona Live is being held at the Hyatt Regency in Austin, Texas from May 28-30, 2019.

Pythian is proud to be a Silver Sponsor this year, with a full force of our technical experts speaking on a variety of subjects and technologies. These are sessions you won’t want to miss!

If you’re attending, make sure you swing by our booth and meet the Pythian crew. We’ll be happy to answer any questions you have about open source, cloud or anything data related. Our speakers will also be covering the event on social media and we’ll recap the event and their talks here on the Pythian …

File/Pos Replication : Skip Slave's sql_thread error [COMMAND]

For binlog file & position based replication setup, To skip the slave's sql_thread error, run below command.


stop slave;  set global sql_slave_skip_counter=1; start slave; select sleep(3); show slave status\G

Recently, I was working on one of the support ticket where customer was complaining that when he change datadir location by copying datadir from C: to F:, set mysql permissions and changing location in my.ini, he could not able to start mysql. Even no error msg in MySQL error log OR application log that why it doesn’t start.

We have checked all the required steps mentioned in documentations and blog posts but still the issue was not getting resolved. Finally, one of my colleague suggested to read this forum post.

https://forums.mysql.com/read.php?169,659235,659254#msg-659254

and we found out that NETWORK SERVICE permission is required for datadir. By default, it will be given to the C:\ but not for other drives. So when we change any datadir to other drive like E:\ or F:\, we …

During our presentation at Percona Live 2019 Intel and its software partners will introduce the audience to the work we’re doing to enable an open-source framework, we call Cloud Native Database. This is a collaborative effort between Intel, Rockset, PlanetScale, MariaDB and Percona.

Through the presentation the audience will be introduced to a set of principles and architectural elements that define what we mean by Cloud Native Database. We will discuss Rockset’s RocksDB-Cloud library and how it works with Facebook’s MyRocks storage engine. We also will cover …

The MariaDB Foundation is pleased to announce the availability of MariaDB 10.3.15, the latest stable release in the MariaDB 10.3 series, as well as MariaDB Connector/C 3.0.10, MariaDB Connector/ODBC 3.1.1 and MariaDB Connector/Node.js 2.0.5, the latest MariaDB Connector releases. See the release notes and changelogs for details. Download MariaDB 10.3.15 Release Notes Changelog What is […]

The post MariaDB 10.3.15, MariaDB Connector/C 3.0.10, MariaDB Connector/Node.js 2.0.5 and MariaDB Connector/ODBC 3.1.1 Now Available appeared first on MariaDB.org.