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Becoming an Agile Leader, Part 3: How to Create Allies

To summarize: your agile transformation is stuck. You’ve thought about your why, as in Becoming an Agile Leader, Part 1: Define Your Why. You’ve started to measure possibilities. You have an idea of who you might talk with as in Becoming an Agile Leader, Part 2: Who to Approach. Now, how do you create allies so you can unwedge your agile transformation? First, here’s ...

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Becoming an Agile Leader, Part 2: Who to Approach

To summarize: your agile transformation is stuck. You’ve thought about your why, as in Becoming an Agile Leader, Part 1: Define Your Why.  You have some idea for measurements. Maybe you’ve even started to measure to capture the data. Now, it’s time to talk to people across the organization. The question is this: Who do you talk with, to unwedge your agile ...

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Becoming an Agile Leader, Part 1: Define Your Why

Your agile transformation isn’t proceeding the way you thought. People use the right agile words, but they’re not changing how they work. Teams aren’t collaborating, managers still talk about “resources,” and the projects aren’t delivering finished value. Your agile transformation is stuck. Maybe it’s time to return to your why. Why is your organization moving to agile? Do you know? Ask ...

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Deprecating Java’s Finalizer

JDK-8165641 (“Deprecate Object.finalize”) has been opened to “deprecate Object.finalize()” because “finalizers are inherently problematic and their use can lead to performance issues, deadlocks, hangs, and other problematic behavior” and because “the timing of finalization is unpredictable with no guarantee that a finalizer will be called.” I recently experienced and wrote about some of these nasty consequences of using Object.finalize() in ...

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Consumer Driven Testing with Pact & Spring Boot

spring-interview-questions-answers

Recently a colleague of mine stumbled across Pact.io,  Our current application had grown to over 50 services and we we’re starting to have some integration test failures and a brittle dev / acceptance test environment. So we decided to have a look at ways to try help with this. I started out by reading: https://docs.pact.io/faq/convinceme.html Then watching: https://www.youtube.com/watch?v=-6x6XBDf9sQ&feature=youtu.be Those 2 resources convinced me ...

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Product Manager vs. Product Owner

For many years, people have debated what the difference between the product manager and the product owner role is, if the roles can coexist or not, and which one should be used. This article shares my thoughts on the topic and reflects on the origin of the product owner role. What? As you may know, the product owner originated from Scrum, where the ...

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Apache Lucene 7.0 Is Coming Soon!

The Apache Lucene project will likely release its next major release, 7.0, in a few months! Remember that Lucene developers generally try hard to backport new features for the next non-major (feature) release, and the upcoming 6.5 already has many great changes, so a new major release is exciting because it means the 7.0-only features, which I now describe, are the particularly big ...

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Amazon S3 Tutorial – The ULTIMATE Guide (PDF Download)

EDITORIAL NOTE: Amazon S3 (Simple Storage Service) is a web service offered by Amazon Web Services. Amazon S3 provides storage through web services interfaces (REST, SOAP, and BitTorrent). Amazon does not make details of S3’s design public, though it clearly manages data with an object storage architecture. According to Amazon, S3’s design aims to provide scalability, high availability, and low ...

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Beware of slow transaction callbacks in Spring

spring-interview-questions-answers

TL;DR If your application is failing to obtain new database connection, restarting ActiveMQ broker may help. Interested? The problem with performance Few months ago we experienced a production outage. Many requests were failing with all too familiar: java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30003ms. at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:555) ~[HikariCP-2.4.7.jar:na] at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:188) ~[HikariCP-2.4.7.jar:na] at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:147) ~[HikariCP-2.4.7.jar:na] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:99) ...

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