Aivars Kalvāns

Making the world a better place through minimal message-oriented transport layers

Jelgava, Latvia Joined on Apr 15, 2020 aivars.kalvans@gmail.com http://aivarsk.com

tuxedo-python

Python3 bindings for Oracle Tuxedo

C++ • 5 stars

prometheus-tuxedo-exporter

A Prometheus exporter of Tuxedo metrics

Python • 2 stars

Python, C++, C, Java, Go

Fuxedo

36 posts published

0 comments written

20 tags followed

Aivars Kalvāns

Sep 30

The O of SOLID

#solid #ocp #open #closed

2 min read

Aivars Kalvāns

Sep 19

The S of SOLID

#solid #srp #cohesion #coupling

4 min read

Aivars Kalvāns

Sep 19

Listing SystemV IPC queues

1 min read

Aivars Kalvāns

Sep 19

Monitoring Oracle Tuxedo with Linux eBPF

1 min read

Aivars Kalvāns

Dec 4 '23

Optimizing Python application's Docker image with strip

#python #docker #optimize

1 min read

Aivars Kalvāns

Dec 4 '23

Accounting systems before TigerBeetle

#python #accounting #ledger #performance

5 min read

Aivars Kalvāns

Dec 4 '23

Today I Learned... WTF, Kafka?

#kafka

1 min read

Aivars Kalvāns

Jan 12 '23

Running your pytests faster

#python #cpython #pytest #gc

1 min read

Aivars Kalvāns

Oct 4 '22

How I made `json.dumps` ~20% faster

#python #json

3 min read

Aivars Kalvāns

Aug 11 '22

FastAPI and cooperative multi-threading pt. 2

#python #fastapi #concurrency #json

3 min read

Aivars Kalvāns

Jan 22 '22

Idle HTTP connections in Scala on Kubernetes

#kubernetes #jvm #keepalive #tcp

2 min read

Aivars Kalvāns

Jan 21 '22

FastAPI and cooperative multi-threading

#python #fastapi #concurrency #async

4 min read

Aivars Kalvāns

Nov 1 '21

Optimizing Kafka producers for latency

#kafka #python #latency #librdkafka

4 min read

Aivars Kalvāns

Nov 1 '21

Inspecting Python functions

#python #pybind11 #cpp

4 min read

Aivars Kalvāns

Nov 3 '21

The hitchhiker's guide to the tpcall flags

#oracle #tuxedo #tpcall

4 min read

Aivars Kalvāns

Nov 1 '21

Tracing msgrcv with ltrace

#linux #ltrace

2 min read

Aivars Kalvāns

Nov 3 '21

Fchg32 is the Swiss Army knife of Tuxedo FML32

#oracle #tuxedo #fml32

2 min read

Aivars Kalvāns

Nov 3 '21

Debugging Boolean Expressions of Fielded Buffers

#oracle #tuxedo #fml32

1 min read

Aivars Kalvāns

Nov 3 '21

Making sense of Tuxedo's SCANUNIT, SANITYSCAN, and BLOCKTIME

#oracle #tuxedo #bbl

2 min read

Aivars Kalvāns

Nov 3 '21

Oracle Tuxedo MSSQ vs. SSSQ

#oracle #tuxedo #ipc

2 min read

Aivars Kalvāns

Nov 3 '21

Boolean Expressions of Fielded Buffers

#oracle #tuxedo #fml32

1 min read

Aivars Kalvāns

Nov 3 '21

Tracking Oracle Tuxedo file transfer

#oracle #tuxedo #ipc #tpcall

3 min read

Aivars Kalvāns

Nov 3 '21

A Prometheus exporter of Tuxedo metrics

#oracle #tuxedo #prometheus

1 min read

Aivars Kalvāns

Nov 1 '21

Oracle Tuxedo queues illustrated

#tuxedo #oracle #queues

2 min read

Aivars Kalvāns

Nov 3 '21

tmshutdown and MSSQ

#oracle #tuxedo #tmshutdown

4 min read

Aivars Kalvāns

Nov 3 '21

tpacall(3c) and XA transactions

#oracle #tuxedo #tpacall #xa

3 min read

Aivars Kalvāns

Nov 1 '21

Java hates TABs!

#java #tabs

2 min read

Aivars Kalvāns

Nov 3 '21

tpadvertisex(3c): a new cool Oracle Tuxedo 12.2 feature that works

#oracle #tuxedo #tpadvertisex

2 min read

Aivars Kalvāns

Nov 3 '21

tpadvertisex(3c): a new cool Oracle Tuxedo 12.2 feature

#oracle #tuxedo #tpadvertisex

2 min read

Aivars Kalvāns

Nov 3 '21

Oracle Tuxedo internals - blocking `tpgetrply()`

#oracle #tuxedo #tpgetrply

2 min read

Aivars Kalvāns

Nov 3 '21

Oracle Tuxedo internals - blocking `tpacall()`

#oracle #tuxedo #tpacall

3 min read

Aivars Kalvāns

Nov 1 '21

How many PINs your payment card has?

#pin #fintech

3 min read

Aivars Kalvāns

Nov 1 '21

Using select(2)

#c #asyncio #select

6 min read

Aivars Kalvāns

Nov 3 '21

DIY Tuxedo Monitoring - ULOG and TMTRACE

#oracle #tuxedo #monitoring

2 min read

Aivars Kalvāns

Nov 1 '21

Empty C++ COW strings

#cpp #cow #string

2 min read

Aivars Kalvāns

Nov 3 '21

DIY Tuxedo Monitoring - Collecting information

#oracle #tuxedo #monitoring

3 min read

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