July 2016 - hawkular-dev - Jboss List Archives

by John Mazzitelli

I ran into an Inventory issue today. I don't know what is the expected behavior - I hope what I saw isn't expected :) I ran the agent and it added everything in inventory successfully. I then shutdown the agent, added a new resource configuration property definition to a resource in the agent configuration, then re-ran the agent. The agent successfully found and attempted to add the new resource configuration property via the inventory bulk/ API, but inventory never stored it. When I look in inventory, I do not see my new resource configuration property attached to the already existing resource. The resource config props that were on the resource originally are still there, but the new one was never added. The agent builds the bulk payload in its AsyncInventoryStorage class - specifically, you can see adding the resource config props here: https://github.com/hawkular/hawkular-agent/blob/master/hawkular-wildfly-a... What is wrong?

9 years, 5 months

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Post a metricType under a resourceType, 400 bad request

by Austin Kuo

Hi all, I was trying to create a metric type under my resource type called “MYRT”, Here’s body look like: {“collectionInterval”: 30, “id”: “metricTypeId123”, "type": "COUNTER", "unit": "NONE"} I posted this to url: http://localhost:8080/hawkular/inventory/deprecated/feeds/vertx-localhost... It gave me 400 bad request. But I posed to http://localhost:8080/hawkular/inventory/deprecated/feeds/vertx-localhost... . And it worked. Wondering why is that? Thanks

9 years, 5 months

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agent blog on prometheus support

by John Mazzitelli

I decided to blog about this since it, too, is a relatively unknown feature, but could be helpful to those that need to collect metric data from Prometheus endpoints. See: http://management-platform.blogspot.com/2016/07/collecting-prometheus-dat...

9 years, 5 months

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agent blog on jolokia support

by John Mazzitelli

I decided to blog about this since it is a relatively unknown feature, but could be helpful to those that need to collect metric data from Jolokia endpoints. http://management-platform.blogspot.com/2016/07/collecting-jmx-data-and-s...

9 years, 5 months

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Master's thesis: Alert Prediction in Metric Data Based on Time Series Analysis

by Pavol Loffay

Hello, yesterday I successfully defended my thesis [1]. I would like to thank to everyone from Hawkular team who helped me with the problems I was facing. Last but not least I would like to thank to company Red Hat for the opportunity to work on this project. [1]: https://is.muni.cz/auth/th/374115?lang=en Pavol

9 years, 5 months

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PR Review Request: https://github.com/hawkular/hawkular-apm/pull/475

by Gary Brown

Another small change - to consolidate environment variables used for configuration. Selection of technology used is now based on a prefix used on the value, rather than on use of different environment variables. Regards Gary

9 years, 5 months

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PR Review Request: https://github.com/hawkular/hawkular-apm/pull/474

by Gary Brown

Hi Simple PR to rename a maven module that builds the APM javaagent jar, which previously only supported REST based communication to the server, but now also supports Kafka. Regards Gary

9 years, 5 months

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Sync with Inventory

by Austin Kuo

Hi all, I’m currently investigating how to sync with inventory server. Here’s the example scenario: Consider the following problem. A user creates version 1 of the app with two http servers, one listening on port 8080, the other on port 8181. In version 2, the http server listening on port 8181 is no longer needed. When the old version is stopped and the new version started, there will be just one http server listening. The application is not aware of the previous state. What should we do so that the second http server is removed from Inventory? Thanks in advance.

9 years, 5 months

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Small PR to review: https://github.com/hawkular/hawkular-apm/pull/471

by Gary Brown

Hi Anyone available to review this PR, which simply changes the location of the APM instrumentation rule configuration files from standalone/data to standalone/configuration? Regards Gary

9 years, 5 months

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Hawkular Metrics 0.17.0 - Release

by Stefan Negrea

Hello Everybody, I am happy to announce release 0.17.0 of Hawkular Metrics. This release is anchored by performance enhancements and new Grafana Datasource Plugin. Here is a list of major changes: 1. *Grafana Datasource Plugin - Experimental* - A new Grafana 3 datasource plugin is now available for Hawkular Metrics. This plugin integrates natively via the REST API. - For downloads and installation instructions please visit Hawkular Datasource for Grafana <https://github.com/hawkular/hawkular-grafana-datasource> - The plugin is developed as an independent project and contributions are welcomed. 2. *InfluxDB API - DEPRECATED* - The InfluxDB API has been deprecated and will be removed in the upcoming release. - This was an addition to make project integrations easier. As the REST interface matured, the role of the InfluxDB compatibility interface was reduced only serve as the Grafana interface. With the release of the native Grafana plugin, this is no longer needed. - For more details: HWKMETRICS-411 <https://issues.jboss.org/browse/HWKMETRICS-411> 3. *Fetching Raw Data - Multiple Metrics - Experimental* - Prior to this release, it was possible to only fetch raw data points for a single metric. This release added POST */query endpoint that allows querying for raw data points for multiple metrics. - The endpoints are: - POST /hawkular/metrics/gauges/raw/query - POST /hawkular/metrics/counters/raw/query - POST /hawkular/metrics/counters/rates/query - POST /hawkular/metrics/strings/raw/query - POST /hawkular/metrics/availability/raw/query - POST /hawkular/metrics/metrics/raw/query - The endpoint accepts a list of metrics ids and allows filtering by providing start time, end time, sort order and limit. - For more details: HWKMETRICS-393 <https://issues.jboss.org/browse/HWKMETRICS-393> 4. *Performance Enhancements* - Two Cassandra driver settings (maxConnectionsPerHost and maxRequestsPerConnection) are now user configurable. Part of the update, the default values have been increased from the driver defaults. The new defaults had a significant performance boost for a simple test deployment. The settings are configurable to allow users to optimize driver behavior for larger Hawkular Metrics deployments. (HWKMETRICS-430 <https://issues.jboss.org/browse/HWKMETRICS-430>) - On Linux deployments, the Cassandra driver uses Netty native epoll ( HWKMETRICS-418 <https://issues.jboss.org/browse/HWKMETRICS-418>) 5. *Cassandra* - Fixed an issue with schema upgrades present in Hawkular Metrics 0.15.0 and 0.16.0. We recommend upgrading from previous versions directly to 0.17.0. For more details: HWKMETRICS-425 <https://issues.jboss.org/browse/HWKMETRICS-425> - Cassandra 3.7 is now the supported version of Cassandra. Support has been deprecated for Cassandra 3.5. *Hawkular Metrics Clients* - Python: https://github.com/hawkular/hawkular-client-python - Go: https://github.com/hawkular/hawkular-client-go - Ruby: https://github.com/hawkular/hawkular-client-ruby - Java: https://github.com/hawkular/hawkular-client-java Release Links Github Release: https://github.com/hawkular/hawkular-metrics/releases/tag/0.17.0 JBoss Nexus Maven artifacts: http://origin-repository.jboss.org/nexus/content/repositories/public/org/... Jira release tracker: https://issues.jboss.org/browse/HWKMETRICS/fixforversion/12330692 A big "Thank you!" goes to John Sanda, Thomas Segismont, Mike Thompson, Matt Wringe, Michael Burman, and Heiko Rupp for their project contributions. Thank you, Stefan Negrea

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hawkular-dev July 2016