Hawkular Metrics 0.11.0 发布改进查询 API

Hawkular Metrics 0.11.0 发布，此版本是个重要版本，包括查询 API 增强，metric 模块重构，支持在 Wildfly 10 上部署。

主要改进：

查询 API 更新
- with tag filtering enabled, it is now possible add id filtering via id parameter
- id parameter supports regex

fromEarliest query parameter was added to allow querying for all available data for a metric
this allows querying all data without specifying start and end
data retention for the metric is taken account, so the max time span is from now tonow - data retention

limit and order parameters are now available for raw data queries on all metric types
limit – integer representing the maximum number of raw data points to be returned
order – either ASC or DESC based on the timestamp of the data point
if both are specified than limit is applied from the start of the sorted list
for defaults and additional details please visit – Hawkular Metrics – Rest Documentation

Limit and Sort Order for raw data queries (HWKMETRICS-334, HWKMETRICS-62,HWKMETRICS-51)
Ability to query all metric raw or aggregate metric data (HWKMETRICS-331)
Fixed the url for querying rate data across multiple metrics (HWKMETRICS-332)
Filtering metrics by id (HWKMETRICS-234)

内部更新
- this was a large effort to consolidate the internal domain model without changing any of the user APIs
- this change will help the documentation efforts for future releases as well as a consistent data structure for the REST APIs

Model refactoring (HWKMETRICS-326, HWKMETRICS-323)

Hawkular 集成
- The integration with Hawkular has now been updated to use asynchronous messages (HWKMETRICS-337)
Wildfly 10 – 部署 & 运行
- Deploying and running the project on Wildfly 10 is now fully supported
- Support for Wildfly 9 is deprecated and will be completely dropped in the next release

Hawkular Metrics 客户端

Hawkular 是一个开源的监控解决方案，是 rhq” target=”_blank”>RHQ 项目的改进版本，受益于多年的经验，Hawkular 设计之初就考虑模块化和可伸缩性，因此组件可在应用之外进行重用。Hawkular 可以接收来自不同源的监控数据，包括 collectd、gmond 等等。

Hawkular 可以让你以应用为中心的视图对整个可连接资源的架构进行监控，并可以很入到应用中某个单独资源进行浏览。