PoppyDB Goes Live — Measurements from a Real Bus

We have never been this far: PoppyDB went live. On a real message bus, three nodes, MongoDB replaced in the same spot. And this time it was about measuring, not bug-hunting. Result: roughly 14 percent more throughput, latencies a third to 40 percent lower, peaks down 83 percent. Bus timeouts from 50 to zero. Slow queries from nearly 30,000 to 17. Plus the backstory: 16 releases from 6.3.0 to 6.3.15 in two and a half months, every number fed back.

Morphium 6.3.15 — and the whole 6.3 series

Morphium 6.3.15 is out! The release that has been running in production on our message bus since October 21st. But really we celebrate the whole series: sixteen releases in two and a half months. From 6.3.0 (Aug 9) to 6.3.15 (Oct 21). Every measurement fed back into a small release. Highlights: 6.3.7/6.3.8 "bugs we all had", the SCRAM fix in 6.3.12, the replication flow control in 6.3.14. And 6.3.13? It does not exist. Halloween. 😉

Ghostty - switching now

I looked at Ghostty almost two years ago and stuck with WezTerm anyway. The TERM variable on remote systems annoyed me too much. That problem is gone now, so are my thousand lines of Lua config - and the cursor animates via shader these days.

Morphium 6.3.7 and 6.3.8: Bugs We All Had

Last time it was about bugs nobody ever hit. Morphium 6.3.7 and 6.3.8 are the opposite: bugs we all had, for months, some for years. Found because we put PoppyDB onto a real message bus and looked properly - heap histograms, connection counters, logs. One Double per event that never goes away. 937,000 TCP connections in 61 hours for a client with nothing to do. A watchdog with 2,229 false alarms in a week. And a full-cluster restart that shows why a rolling restart is worthless as a test for restore paths.

Morphium 6.3.1 — and the Transparent Message Bus

We just released Morphium 6.3.1 - officially a bugfix release, in reality the harvest of 6.3.0's first two production weeks: server-side topic filters in the change stream, detection of mixed messaging implementations, and an in-memory driver that now behaves like mongod down to event ordering. And the occasion for the bigger story: why a message bus made of documents is transparent - with a peeker that reads along without consuming, and Morpheus as the cockpit for the running bus. Try that with Kafka 😉

Morphium 6.3.0 — What's New?

Morphium 6.3.0 — What's New?

The largest release in the 6.x line so far. Its centre of gravity is not the client this time — it is PoppyDB and the in-memory driver underneath it, both of which went from "good enough to run your tests against" to something you can actually operate.

Using a wire proxy to do failover tests

Failover testing with `kill -9` is manual labor and never runs in CI — yet from a driver's perspective, failover bugs are pure wire phenomena. So we moved the faults onto the wire: one TCP proxy per replica set node that can freeze, reset, or cleanly close connections, plus `hello` rewriting so the driver never sees the real addresses. The harness promptly found real bugs — including a read that spent 26 seconds hammering a dead primary.

Morphium 6.2.6: The Timeout That Multiplied Itself by 100

Morphium 6.2.6 is out — and it repairs something that should never have been broken in the first place: replicaset failover. A chain of bugs (chief among them a timeout that silently multiplied itself by 100) meant the driver practically never recovered after the primary died: writes hung, messaging stayed dead. After the fixes: full write throughput ~25 seconds after a kill -9, no lost messages. Also on board: a fix for `findOneAndUpdate` deleting documents instead of updating them on read-cache hits, a self-deadlock in the SingleMongoConnectDriver, and `$setOnInsert`/upsert support in the InMemoryDriver.

Morphium 6.2.5: The One-Document Batch That Cost 20 Seconds

Morphium 6.2.5 is out. A quiet patch release with one loud story: a hardcoded change stream `batchSize=1` that turned into 20-second latency spikes over a high-latency link — plus Atlas TXT seedlist support, Quarkus native-image pre-registration, and a batch of InMemoryDriver and aggregation fixes.

Morphium v6 Performance — MongoDB vs PoppyDB vs InMemory

Morphium v6 rewrote the connection pool and messaging system from scratch. Here are the numbers: 38% more throughput, 2.5x faster messaging with PoppyDB, and a test suite that runs 879 tests across 5 backends in under an hour. --- id: 10647 ---

JBlog3 — Von Spring Boot zu Quarkus

Morphium v6.x Update: 13 Releases at a Glance

13 releases, 417 commits: Morphium v6.x has evolved massively. MorphiumServer with replica set support and SSL, a finally stable connection pool, significantly faster InMemoryDriver, and self-healing ChangeStreams. Plus: Jackson removed as a dependency. An overview of everything important since v6.0.0.

ToolTamer – Sync System Configuration and Packages Across Machines

ToolTamer – Sync System Configuration and Packages Across Machines

Anyone working on multiple machines knows the drill: your .zshrc on the laptop differs from the desktop, one machine is missing ripgrep, another still has half a dozen too

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Morphium version 6

Announcing Morphium 6.0: Modern Java ODM with Built-in Messaging

Today we're thrilled to announce Morphium 6.0, a major release of our feature-rich MongoDB Object Document Mapper for Java. This release brings full JDK 21 support, a comple...

New blog software

the java based blog sofware jblog was in use quite some time now and I thought it is in need of some additional love

NeoVim Editor

This is really a topic that can stir up emotions. Which text editor to choose and configure is a very important decision especially for Unix users.

this and my neovim journey describt in this post

Morphium version 5

Morphium, the java pojo objectmapper for mongodb, needed some rewrites and improvements. All details in this post.

Morphium V4.2.13

We have just released a new version, which again contains some improvements and fixes:

pass Alfred workflow

This is a simple workflow for using the pass password store Alfread is the main GUI here.

Several keywords:

• pass: search for entries, hit enter to see details and copy fields accordingly
• pgen: generat

Morphium V4.2.12 released

The latest Version of morphium (V4.2.12) was released a couple of days ago. As usual, the changes contain Bugfixes and improvements.

• Tests were changed so that they run more smoothly in total, less side effects
• Tests were simplified
• B