September 2016 - hawkular-dev - Jboss List Archives

"Getting Things Done" (David Allen) System: Artificer

by Brett Meyer

FWIW, I've been experimenting with Artificer as a "Getting Things Done" solution, mainly as a bit of dogfooding. However, it fits in surprisingly well. I'll be maintaining a demo that showcases a GTD ontology/classifier system, showing Artificer as not-just-another-artifact-repo, but also a powerful information and reference system. https://developer.jboss.org/en/artificer/blog/2015/03/31/getting-things-d...

3 months, 2 weeks

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Hawkular Inventory Storage and Queries In a Nutshell

by Lukas Krejci

Hi all, given the recent discussion about the backend we should be using for inventory, I've quickly put together a brief explanation of what inventory actually stores and how it queries things. This is expected to raise more questions than to provide answers though and is meant as a starter for the discussion that I hope will happen in the comments section of the google doc [1]. Thanks, [1] https://docs.google.com/document/d/ 1Z1pIQS4EML7_0tuSyHUPX6jzNvaeEqGm4XAiYcRGbvQ/edit?usp=sharing -- Lukas Krejci

6 years, 4 months

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Cassandra Cluster with docker.

by Ruben Vargas Palma

I was testing a little bit with Hawkular-Services + Cassandra cluster using docker containers, I created a GitHub repository with my setup: https://github.com/rubenvp8510/hwk-cassandra-docker It seems to work fine, at least on my environment, I did some different tests but I couldn't test more than 3 nodes on my machine, but hopefully it will work for N nodes. Some issues I found: - Sometimes hawkular throws a timeout exception "Cassandra timeout during read query at consistency LOCAL_ONE", I only managed to reproduce it 2 times. - This setup is not enough robust because the Keyspace has replica factor of 1, so if one node dies hawkular-services started complain about it. Regards

6 years, 5 months

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wildfly agent: jmx/jolokia and prometheus support

by John Mazzitelli

There is a concern that the Hawkular WildFly Agent is bloated with stuff people aren't really using or are going to use and is going to make maintaining it more complicated than it needs to be. So I want to get feedback on the following plan. This is being tracked in JIRA here: https://issues.jboss.org/browse/HWKAGENT-142 We are going to take out support for JMX/Joloxia and Prometheus managed endpoints. The agent will only support collecting metrics from "DMR endpoints" (that means WildFly Servers - either in standalone or domain mode). Rather than lose the code for the JMX/Jolokia and Prometheus support, we are going to fork master into a separate branch. If we ever do need to resurrect that code, or someone wants to build an agent with those features to play around with, we'd have that branch available. Thoughts?

6 years, 5 months

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Metrics tag queries ( and inventory)

by Heiko W.Rupp

Hey, I was looking at how to find all tags in the metrics system and found endpoints like http://www.hawkular.org/docs/rest/rest-metrics.html#GET__gauges_tags__tags_ (similar exist for Counters, avail, ...) Those expect a "tag-query". With some looking at the source and trying I found out that app:* works, but not *:cpu or even *:* to find all tags. Do metrics-only users completely rely on external orchestration to find possible tags? Now with pets vs cattle and containers coming and going, we need those labels to identify what belongs together. For Hawkular-services, how will we store those tags in a way that clients (e.g. ManageIQ) can find them and thus also query metrics for those labels?

6 years, 5 months

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Hawkular Alerting 1.2.0.Final has been released!

by Jay Shaughnessy

The Hawkular Alerting team is happy to announce the release of Hawkular Alerting 1.2.0.Final. This is a feature and fix release. * [HWKALERTS-160] - CompareCondition can not require both DataIds to be supplied for the same engine firing o This makes CompareCondition more useful and predictable by removing the restriction that both metrics [used in the comparison] be reported at the same time. * [HWKALERTS-161] - Extend alerts criteria to support resolved and ack timestamps o More powerful querying around life-cycle changes. * [HWKALERTS-162] - Allow to not store external events o EventConditions can now be evaluated using transient (unpersisted) events. This prevents unnecessary storage of events meant only for trigger condition evaluation. * [HWKALERTS-163] - Unify actions architecture under a single implementation o A refactor to simplify action plugins by unifying on one type of plugin registration. * [HWKALERTS-164] - Simplify Alert.resolvedTime and Alert.ackTime with Alert.lifecycle o More powerful life-cycle handling, allowing more status transitions for a single alert, and an easily accessible list of status changes. * [HWKALERTS-165] - Refactor hawkular-alerts-rest to support several artifacts o A refactor to provide artifacts for both standalone and Hawkular Services. Starting with this release the different artifact flavors are all published. * [HWKALERTS-166] - CassCluster needs to detect schema is fully created on multi nodes environments o A stability enhancement for clustered deployments, to ensure the Cassandra schema is ready for all nodes. * Hawkular Metrics embeds Alerting! o V1.2.0.Final is the base version for embedded alerting in Hawkular Metrics! Coming Soon! For more details for this release: http://issues.jboss.org/secure/ReleaseNote.jspa?projectId=12315924&versio... Hawkular Alerting Team Jay Shaughnessy (jshaughn(a)redhat.com) Lucas Ponce (lponce(a)redhat.com)

6 years, 5 months

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Best Practices: MiQ Dependencies around other branches

by mike thompson

Hey Hawkular Folk, So I just wanted to know what is the ‘the way’ to incorporate branches or PRs that one’s branch is dependent on? Since merging into MiQ master takes so long, what is our strategy around dependent merges? We are unfortunately in the realm of long lived branches now. Much more rebasing and conflicts given the extended timeframes for merging. I have asked around, and no one is confident in “the way”. I have a couple methods in mind but not sure what the best practices are…. Please speak up if one works for you and we can adopt it. — Mike

6 years, 5 months

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Hawkular-services 0.14

by Heiko W.Rupp

Heya, we have released hawkular-services 0.14. Changes to 0.13 are * Agent has been updated to v 0.22 * Inventory has been updated to 0.19.2: this has a different backend than before, so hammer it :) Unofficial Docker images are available as follows: * pilhuhn/hawkular-services * pilhuhn/hawkfly (0.22.0) and also * pilhuhn/hawkfly-domain as a WildFly in domain mode. Thanks to everyone who has contributed to this and all the previous releases.

6 years, 5 months

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Understanding data retention

by Gareth Healy

A metric supports data retention (TTL); the swagger docs say this is number of days. - https://github.com/hawkular/hawkular-metrics/blob/5eb13c6dbddafdcc0fcd5eb... - http://www.hawkular.org/docs/rest/rest-metrics.html#Metric There is also a default TTL which is in days but converted internally into seconds: - https://github.com/hawkular/hawkular-metrics/blob/39389e4bf5a988ef01cbad8... Looking at when metrics are created, i can't see any conversion from days to seconds for metrics; so any data i create with a Metric DataRetention of 30 "days" gets removed straight away. So my question is: - Are the swagger docs wrong? or - Should the model convert to seconds? Or...have i missed something... ? Cheers.

6 years, 5 months

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GET gauge fails if i use tenant: origin-metrics

by Gareth Healy

Noticed a strange issue when trying to query gauges. If i use the tenant, origin-metrics, i get a read error from cassandra as per below. This is on latest services (0.0.13). Server error: - https://gist.github.com/garethahealy/d91751a7a24fabd204ab30f03af0eea7 Works: Hawkular-Tenant=originmetrics - https://gist.github.com/garethahealy/c7ac1208810f8374063dbbd69295f575 *Doesn't work: Hawkular-Tenant=origin-metrics* - https://gist.github.com/garethahealy/09c5769bd348919d39d9604381d3f8ae

6 years, 5 months

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hawkular-dev September 2016