[Hawkular-dev] Hawkular Metrics 0.24.0 - Release

[John Doyle]

Congratulations!

On Thu, Feb 9, 2017 at 3:02 PM, Stefan Negrea <snegrea at redhat.com> wrote:

> Hello,
>
> I am happy to announce release 0.24.0 of Hawkular Metrics. This release is
> anchored by a new tag query language and general stability improvements.
>
> Here is a list of major changes:
>
>    - *Tag Query Language*
>       - A query language was added to support complex constructs for tag
>       based queries for metrics
>       - The old tag query syntax is deprecated but can still be used; the
>       new syntax takes precedence
>       - The new syntax supports:
>          - logical operators: AND,OR
>          - equality operators: =, !=
>          - value in array operators: IN, NOT IN
>          - existential conditions:
>             - tag without any operator is equivalent to = '*'
>             - tag preceded by the NOT operator matches only instances
>             without the tag defined
>          - all the values in between single quotes are treated as regex
>          expressions
>          - simple text values do not need single quotes
>          - spaces before and after equality operators are not necessary
>       - For more details please see: Pull Request 725
>       <https://github.com/hawkular/hawkular-metrics/pull/725>,
>       HWKMETRICS-523 <https://issues.jboss.org/browse/HWKMETRICS-523>
>       - Sample queries:
>
>            a1 = 'bcd' OR a2 != 'efg'
>            a1='bcd' OR a2!='efg'
>            a1 = efg AND ( a2 = 'hijk' OR a2 = 'xyz' )
>            a1 = 'efg' AND ( a2 IN ['hijk', 'xyz'] )
>            a1 = 'efg' AND a2 NOT IN ['hijk']
>            a1 = 'd' OR ( a1 != 'ab' AND ( c1 = '*' ) )
>            a1 OR a2
>            NOT a1 AND a2
>            a1 = 'a' AND NOT b2
>            a1 = a AND NOT b2
>
>
>    - *Performance*
>       - Updated compaction strategies for data tables from size tiered
>       compaction (STCS) to time window compaction (TWCS) (HWKMETRICS-556
>       <https://issues.jboss.org/browse/HWKMETRICS-556>)
>       - Jobs now execute on RxJava's I/O scheduler thread pool (
>       HWKMETRICS-579 <https://issues.jboss.org/browse/HWKMETRICS-579>)
>    - *Administration*
>       - The admin tenant is now configurable via ADMIN_TENANT environment
>       variable (HWKMETRICS-572
>       <https://issues.jboss.org/browse/HWKMETRICS-572>)
>       - Internal metric collection is disabled by default (HWKMETRICS-578
>       <https://issues.jboss.org/browse/HWKMETRICS-578>)
>       - Resolved a null pointer exception in DropWizardReporter due to
>       admin tenant changes (HWKMETRICS-577
>       <https://issues.jboss.org/browse/HWKMETRICS-577>)
>    - *Job Scheduler*
>       - Resolved an issue where the compression job would stop running
>       after a few days (HWKMETRICS-564
>       <https://issues.jboss.org/browse/HWKMETRICS-564>)
>       - Updated the job scheduler to renew job locks during job execution
>       (HWKMETRICS-570 <https://issues.jboss.org/browse/HWKMETRICS-570>)
>       - Updated the job scheduler to reacquire job lock after server
>       restarts (HWKMETRICS-583
>       <https://issues.jboss.org/browse/HWKMETRICS-583>)
>    - *Hawkular Alerting - Major Updates*
>       - Resolved several issues where schema upgrades were not applied
>       after the initial schema install (HWKALERTS-220
>       <https://issues.jboss.org/browse/HWKALERTS-220>, HWKALERTS-222
>       <https://issues.jboss.org/browse/HWKALERTS-222>)
>
>
> *Hawkular Alerting - Included*
>
>    - Version 1.5.1
>    <https://issues.jboss.org/projects/HWKALERTS/versions/12333065>
>    - Project details and repository: Github
>    <https://github.com/hawkular/hawkular-alerts>
>    - Documentation: REST API
>    <http://www.hawkular.org/docs/rest/rest-alerts.html>, Examples
>    <https://github.com/hawkular/hawkular-alerts/tree/master/examples>, Developer
>    Guide
>    <http://www.hawkular.org/community/docs/developer-guide/alerts.html>
>
> *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/0.24.0
>
> JBoss Nexus Maven artifacts:
> http://origin-repository.jboss.org/nexus/content/repositorie
> s/public/org/hawkular/metrics/
>
> Jira release tracker:
> https://issues.jboss.org/projects/HWKMETRICS/versions/12332966
>
> A big "Thank you" goes to John Sanda, Matt Wringe, Michael Burman, Joel
> Takvorian, Jay Shaughnessy, Lucas Ponce, and Heiko Rupp for their project
> contributions.
>
> Thank you,
> Stefan Negrea
>
>
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