Blog

I’ve released today logstash-gelf 1.4.1, I’ll be available until this evening on Maven Central.

(more…)

Logstash is one of the hottest tools when it comes to log management. There are lots of integration possibilities in standalone or web applications. But what if you want to capture the whole log output of your JBoss server? Take a look at the snippets.

(more…)

visualizr – Show your data Once in a while I get in touch with lots of time based data, such as monitoring or profiling values.

Calls per minute, actions per time unit and so on. Having such data is a great value but having it visualized gives a different impression instead looking at numbers. I’ve created visualizr. It’s a small Single-Page-Application with a Java-based backend. Visualizr provides support for multiple data sources (a data source can contain multiple charts), auto-reloading and a great user experience.

Give it a try, you can find the code at https://github.com/mp911de/visualizr or as a maven artifact (SNAPSHOT-version until now)

<dependency>
    <groupId>biz.paluch.visualizr</groupId>
    <artifactId>visualizr</artifactId>
    <version>1.0-SNAPSHOT</version>
</dependency>

Sonatype OSS Snapshot Repository: https://oss.sonatype.org/content/repositories/snapshots

It happens currently all the time. I’m always coming back to projects I worked on. Over and over I’m meeting old coworkers and colleagues. Same faces, sometimes a bit older than I left them. This raises mixed feelings. It’s sort of coming home, thus it is different.

Operating a Hadoop cluster means lots of daemons running on lots of machines. When it comes to the logs, and you’re searching for something, it can get nasty, since you do not know, where to search.

(more…)

Today I’ve released the patch 1.2.6 of logstash-gelf. This release contains a performance bugfix which caused an incident in the past. 

The java.util.logging hoghandler’s publish method was synchronized. This caused stalling of different threads which ended up in a denial of service. Usually a restart of the application is sufficient to solve that problem, but that’s only a temporary solution. Other implementations of logstash-gelf (Log4j, Log4j2 and Logback) are not affected.

Links

• Release on Github
• Artifact overview on Maven Central
• Download logstash-gelf 1.2.6

Any feedback is appreciated or create issues on GitHub.

Imagine you're talking about something today with your product owner or boss. It get's the highest priority for today, because it's cool or something. Tomorrow you're not done with it but have again a cool feature idea. Or a collegue of you. And guess what, it gain's again highest priority.

And what about the first topic? Forgotten again. Not having a mid-term or long-term plan can get a horror. Not having a product vision or a strategy for your product is even harder. Every day things can change, old stuff gets obsolete and there is no red thread what your system is and what it's not. How it behaves and how not. This causes uncertainty and the involved developers cannot be confident about their implementation. Always and ongoing discussions and changes of directions are the consequence. The whole product looks and works like a mixed litterbox which causes confused users and no one is happy with the application.

Don't become that team.