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Blog

A Journey of a Thousand Miles Begins with a Single Step

Setup SSH agent for macOS High Sierra

Add to your ~/.ssh/config the option for every host.

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Hello Webservice (JAX-WS) with JBoss EAP 7.1

A quick example of JAX-WS with JBoss EAP 7.1.

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Backup Elasticsearch Index with Logstash

Index data in Elasticsearch can be easily exported in json encoded text with Logstash.

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Using Aggregations with the Java Rest Client for Elasticsearch

The aggregations framework helps provide aggregated data based on a search query. Using aggregations on my audit data gives me insight who used my Elasticsearch cluster at what time. This post demonstrates how to translate the Elasticsearch Query DSL into the respective Java Objects of Elastic Java Rest Client.

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Encrypted Communication with the Elasticsearch Java Rest Client

Elasticsearch with the X-Pack extensions allows you to secure the communication with your Elasticsearch cluster. This post elaborates what actions are needed, to use secure encrypted communication from a Java Rest Client with the encrypted Elasticsearch cluster.

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Increase Elasticsearch Pool Size

Elasticsearch has common thread defaults for bulk requests. If you need to tune or gap certain problems, you can change the thread and thread pool size settings in elasticsearch.yml. In general it is not recommended to tweak anything! Use it at your own risk!

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Cardinality Aggregations in Elasticsearch

This post demonstrates the usage of the Cardinality feature.

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Distribute Watches in Elasticsearch

X-Pack Alerting aka Elasticsearch Watcher can run distributed in a Elasticsearch cluster.

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Run metricbeat as docker container

Metricbeat as docker container, is a decent monitoring solution to monitor other docker containers in conjunction with Elasticsearch and Kibana. Additionally metricbeat can monitor the docker system itself. You might run into some problems, which I would like to share.

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