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Valeriy Kravchuk
Works at Percona
Attended Moscow State University
Lived in Kyiv
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Valeriy Kravchuk

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Fun with Bugs #46 - On Some Bugs I've Reported During the Year of 2016
It's time to summarize the year of 2016. As a kind of a weird summary, in this post I'd like to share a list of MySQL bug reports I've created in 2016 that are still remaining "Verified" today: Bug #79831 - " Unexpected error message on crash-safe slave wit...
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Valeriy Kravchuk

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Upstart Basics for Automatic Restarts of MaxScale After Crash
Historically I do not care much about MariaDB's MaxScale , at least since I know how to build it from source when needed. But, as a support engineer who work at MariaDB, sometimes I have to deal with problems related to MaxScale, and this week it happened s...
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How to Recover Corrupted InnoDB Partition Tablespace in Replication Setup
This week I've got a question that sounded basically like this: " Is it possible to just copy the entire partition from the replicated server? " Let me share some background story. As it happens sometimes, user had a huge table with many partitions, let's s...
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Fixing Broken MySQL Replication: Basic Usage of pt-table-checksum, pt-slave-restart and pt-table-sync
For second day in a row I am trying to concentrate on writing a second issue for my new series of blog posts, but I can not complete. It seems half of it is going to be devoted to three tools from Percona Toolkit that I had to remember and explain this week...
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Fun with Bugs #45 - On Some Bugs Fixed in MySQL 5.7.15
Oracle released MySQL 5.7.15 recently , earlier than expected. The reason for this "unexpected" release is not clear to me, but it could happen because of a couple of security related internal bug reports that got fixed: "It was possible to write log files ...
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Fun with Bugs #43 - Bugs Fixed in MySQL 5.7.13
For some reason I do not see numerous public announcements about recent MySQL 5.7.13 release , even though it happened a couple of days ago formally. Maybe that's because we do not have any really "big" new features in this release (new ->> operator for int...
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MySQL Support Engineer's Chronicles, Issue #4
This week I had to deal with some unusual problems. But let me start with Percona's xtrabackup , software that I consider a key component of many current production MySQL setups and use regularly. Recently new minor versions of XtraBackup were released, che...
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Valeriy Kravchuk

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MySQL Support Engineer's Chronicles, Issue #3
The original idea of this series was to publish one post per week, but it seems every other week I have some special topic that well deserves a dedicated post. Last week I had no time to complete my writing because of long (and, I hope, useful) Howto post o...
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Valeriy Kravchuk

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MySQL Support Engineer's Chronicles, Issue #2
It's time to continue my new series that I've started 2 weeks ago . I'd like to start with a reminder that it's time to send your talks for "MySQL and Friends Devroom" at FOSDEM 2017 - the only MySQL-related event next year that I plan to attend in any case...
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MySQL Support Engineer's Chronicles, Issue #1
I have a habit to keep a log of everything I work on (or even just read about while working) every day. It's just a plain text file, with date labels, where most lines are URLs of issues and bugs I contributed to somehow, and my comments on what I did and w...
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Fun with Bugs #44 - Community Bugs Fixed in MySQL 5.7.14
MySQL 5.7.14 was officially released yesterday. So, it's time to check what bugs reported by MySQL Community in public were fixed in this release. Some of these bugs are presented below. As usual, let me start with InnoDB. The following bugs were fixed ther...
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Fun with Bugs #42 - Bugs Fixed in MySQL 5.7.12
MySQL 5.7.12 was released more than 2 weeks ago. New features introduced there in a form of "rapid plugins" are widely discussed, but I am more interested in bugs reported by MySQL Community users that are fixed there. Unfortunately I do not see MySQL Commu...
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Story
Tagline
I solve problems
Education
  • Moscow State University
    Applied Mathematics, 1987 - 1992
Basic Information
Gender
Male
Work
Employment
  • Percona
    Principal Support Engineer, 2012 - present
  • Oracle Corporation
    MySQL Support Engineer, 2010 - 2012
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Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Previously
Kyiv