My two parallel replication talks at Percona Live Santa Clara 2017

Yes, another post about my talks at Percona Live Santa Clara: I obviously still have things to share.  This time, I will focus on my parallel replication talks by giving a short preview.

My talks at Percona Live Santa Clara 2017

In a previous post, I listed all the Booking.com talks at Percona Live.  In this post, I will give more details about my talks.

As a reminder, the list of my talks is the following:

• Monitoring Booking.com without looking at MySQL (Thursday keynote)
• The two little bugs that almost brought down Booking.com (Tuesday Lightning Talk)
• MySQL/MariaDB Parallel Replication: inventory, use cases and limitations (Wednesday talk)
• MySQL Parallel Replication (LOGICAL_CLOCK): all the 5.7 (and some of the 8.0) details (Thursday talk)

I will quickly describe each of them below.

Booking.com talks at Percona Live Santa Clara 2017

In a week, me and some Booking.com colleagues will be in Santa Clara for Percona Live.

Booking.com is sponsoring the conference and we will be present at the Monday Evening Reception.  You do not need a tutorial pass to attend the dinner (even if it is on the tutorial day): any valid pass will do.  If you do not have your ticket yet, it is time to register (you can use the discount code “SeeMeSpeak” for a 10% discount on the registration fees).

Many thanks Oracle for implementing RESET MASTER TO

MySQL 8.0.1 is out and it includes an implementation of my feature request (Bug #77438).  This extension to RESET MASTER allows to simplify master promotion with Binlog Servers.  Let's see how it works:

# mysql -N <<< "SHOW MASTER STATUS"
binlog.027892   3006935
# mysql -N <<< "RESET MASTER TO 12345; DO sleep(rand()*10); SHOW MASTER STATUS"
binlog.012345   92773
# mysql -N <<< "RESET MASTER TO 12345678; DO sleep(rand()*10); SHOW MASTER STATUS"
binlog.12345678 24795
# mysql -N <<< "RESET MASTER TO 1234567890; DO sleep(rand()*10); SHOW MASTER STATUS"
binlog.1234567890       13987
# mysql -N <<< "RESET MASTER TO 12345678901; DO sleep(rand()*10); SHOW MASTER STATUS"
ERROR 3567 (HY000) at line 1: The requested value '12345678901' for the next
binary log index is out of range. Please use a value between '1' and '2147483647'.
# mysql -N <<< "RESET MASTER TO $RANDOM; DO sleep(rand()*10); SHOW MASTER STATUS"
binlog.013529   89880
# mysql -N <<< "RESET MASTER TO $RANDOM; DO sleep(rand()*10); SHOW MASTER STATUS"
binlog.000831   22961
# mysql -N <<< "RESET MASTER TO $RANDOM; DO sleep(rand()*10); SHOW MASTER STATUS"
binlog.023089   107764
# mysql -N <<< "RESET MASTER TO $RANDOM; DO sleep(rand()*10); SHOW MASTER STATUS"
binlog.003433   67903

Many thanks Oracle for implementing my feature request, and a special mention to Daniël van Eeden for providing a patch in the bug report.

Busy April 2017: MariaDB Dev Meeting (no-slave-left-behind, MyRocks, ...) and Percona Live

In a few days, I will start my yearly travel to North America which will bring me at Percona Live at the end of the month.  But I will first stop in New York to attend the MariaDB Developer Meeting.  Let's see what will happen there.