@ask_dba
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Open Source Database Evangelist -Born to Sail, Forced to Work! #mysqlcookbook4e #designandmodeling #mysqlrockstar #oracleacepro https://nitter.cf/t.co/mcHsHWnypW
Istanbul, TURKEY
Joined May 2010
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I was born to sail. The sea teaches lessons that reach far beyond the horizon: respect the sea, trust your crew, adapt to changing conditions, and always keep your course, even when the winds shift.
Today, I’m excited to begin a new voyage as Chief Strategy Officer at @proxysql . Every journey begins with a change of course. Sometimes it means discovering new waters. Sometimes it means sailing familiar seas with a new crew. This is one of those voyages.
I’ve spent more than three decades navigating the world of open source databases, infrastructure, high availability, and the incredible communities that have shaped our industry. The waters are familiar, but the opportunities ahead are anything but.
I’m looking forward to helping chart the next course for ProxySQL, working alongside an exceptional team, and continuing to contribute to the open source ecosystem that has given me so much throughout my career.
Fair winds to my new crew, @rene_cannao and @JesmarCannao
Let’s sail ⛵ ⚓ 🔱
#ProxySQL #Leadership #OpenSource #Databases #MySQL #PostgreSQL #CloudNative #oracleacepro #mysqlrockstar @svrubato
Alkin Tezuysal retweeted
Calling all #MySQL enthusiasts in São Paulo! 🇧🇷
On 26 September, our #OracleACE speakers take the stage at MySQL BR Conf 2026, sharing their expertise with Brazil’s MySQL community.
A great opportunity to learn, exchange ideas and connect with fellow database professionals.
📅 26 September 2026 | 📍 São Paulo, Brazil
🔗 social.ora.cl/6013B1AfAX
@MarioBarduchi @ask_dba
Alkin Tezuysal retweeted
COMMIT succeeds.
The next SELECT returns no booking.
Nothing was necessarily lost. The read may have reached a replica before the write was applied.
This is the kind of problem we’ll unpack in my Nerdearla session tomorrow.
For a dependent read, “this is a replica” is not enough information. We need to know which write the read depends on, and whether that backend has applied it.
I’ll show the MySQL GTID flow in @proxysql : capture the write dependency, observe each backend’s progress, then select an eligible destination. We’ll also discuss the planned direction for PostgreSQL causal reads.
Join me for “SQL Traffic Routing Without Breaking Consistency.”
Sep 25 · 14:35–15:15 UTC−3
Sala Abasto · Ciudad Cultural Konex, Buenos Aires · English
nerdearla.com/en/argentina/s…
#Nerdearla
Alkin Tezuysal retweeted
One app → one database.
Then: more app instances, more connections, replicas, a SQL proxy, failover.
At each step, there’s a new question: what does the routing layer need to know to preserve the application’s behavior?
That’s the story behind my Nerdearla 2026 session: “SQL Traffic Routing Without Breaking Consistency.”
We’ll follow a ticket-booking service as it grows, using #MySQL, #PostgreSQL and @proxysql examples. Expect diagrams, session state, prepared statements, replica lag, and some reads that really shouldn’t go to just any replica.
Join me in Buenos Aires:
Sep 25 · 14:35–15:15 UTC−3 · Sala Abasto, Ciudad Cultural Konex
40 minutes · English
Details / free registration:
nerdearla.com/en/argentina/s…
#Nerdearla
Alkin Tezuysal retweeted
Join us at IA Conference Brasil on Sept. 24 in São Paulo.
Heather VanCura, VP of External Standards & Community Engagement at Oracle, will present “Building a Secure AI Future Through Open Standards.”
Oracle and MySQL will also be onsite at booth #4.
social.ora.cl/6012BGdEew
I have some good news to share about teaching. I'll be collaborating with the Computer Science department of @Hacettepe1967 University to hold Database Learning sessions this fall. Details to follow soon.
#opensource #databases #computerscience #learning
BGP ECMP Anycast can keep ProxySQL highly available without another load balancer. 👀
Isobel Smith & Marno Krahmer break down how on the Percona Community Blog: bit.ly/4hu3Q2g
#ProxySQL #MySQL #OpenSource
Book a demo with me at proxysql.com/saas/
A ProxySQL fleet spanning clouds and regions is hard to see. In Amsterdam, we showed how ProxySQL.Cloud brings health, traffic, configuration, backups, and alerts into one control plane.
proxysql.com/blog/continuing…
Alkin Tezuysal retweeted
Fast Forward traffic cannot become invisible traffic.
In @ProxySQL 3.1.11, FFTO observes modern #MySQL and PostgreSQL flows without changing forwarded data; malformed or oversized traffic bypasses observation safely.
github.com/sysown/proxysql/r…
I will be there along with ProxySQL team!
Join us at MySQL BR Conference on Sep. 26 in São Paulo. We’re proud to support this community event as a Gold Sponsor. Heather VanCura, VP of External Standards and Community Engagement, will deliver a keynote alongside Oracle MySQL technical sessions.
social.ora.cl/6019BGp5j5
Next up in showcasing our cloud offering, we'll be taking the stage at the @MySQL Brazil Conference. Come and meet the @proxysql team. mysqlbrconf.com.br/schedule
Alkin Tezuysal retweeted
We're excited to welcome @coderabbitai as a Platinum Sponsor of All Things Open 2026! Explore the schedule and start planning your All Things Open experience in Raleigh, NC, October 19–20. 2026.allthingsopen.org/sched…
Fast Forward traffic should not be a blind spot.
ProxySQL 3.1.11 improves FFTO accounting for modern MySQL result flows and pipelined PostgreSQL queries, while TSDB synchronization avoids transient-lock failures.
github.com/sysown/proxysql/r…
#MySQL #PostgreSQL #Observability
ProxySQL 3.1.11 adds modern, opt-in authentication:
- MySQL caching_sha2_password RSA exchange
- MariaDB ed25519
- per-user X.509 requirements.
TLS remains the recommendation for full-session confidentiality.
github.com/sysown/proxysql/r…
Percona Live Amsterdam is over, but the conversations continue: failover, routing, observability, MySQL, PostgreSQL, and the production edge cases that never fit on a feature list.
Thank you for stopping by.
proxysql.com/blog/thank-you-…
ProxySQL 3.1.11 adds modern, opt-in authentication: MySQL caching_sha2_password RSA exchange, MariaDB ed25519, and per-user X.509 requirements. TLS remains the recommendation for full-session confidentiality.
github.com/sysown/proxysql/r…
Alkin Tezuysal retweeted
If you missed it: thank you to everyone who contributed to MySQL 26.7. Community bug reports, patches, pull requests, and feedback helped improve areas across the server, tooling, utilities, packaging, and Connector/J. Read the blog to learn more.
social.ora.cl/6014BGMKOn
Don’t forget your Sponsor Passport at #PerconaLiveEU. 👀
Visit participating sponsors, complete your passport, and enter to win prizes.
The raffle is Friday, Sept. 11 at 12 PM in the sponsor exhibit hall. 🎁
#OpenSource #Databases
Next, I'm taking the stage with @rene_cannao to take @proxysql beyond proxy... Come and join us! perconalive.com/2026-amsterd…
