Hi,

I was trying to install logstash on Amazon Linux 2. After installing it, I couldn't start/enable the service. After some debugging, I noticed the systemd configuration installed by /usr/share/logstash/bin/system-install. However, I do my tests and development mostly on AWS t3.nano and this binary is memory intensive and won't work on low memory.

The exit code could have been checked

currently Metorikku is using a simple YAML config file as input.
we need to be able to override this configuration using CLI params

Pivot missing categories breaks FeatureSet/AggregatedFeatureSet

Summary

When defining a feature set, it's expected that pivot will have all categories and, as a consequence, the resulting Source dataframe will be suitable to be transformed. When a different behavior happens, FeatureSet and AggregatedFeatureSet breaks.

Feature related:

Age: legacy

Enhance KgtkReader to read MD files written by KgtkWriter.

In some use case, we might need many instance of the same component (ETL, CSV Extractor...).

So far there is two way to proceed:

• Use DI. But your constructor could become huge.
• Use DI + clone. But become difficult to test.

We might consider to create a factory. It would be a class with one public method get(), with two parameters:

• The classname of the request component
• The option