JarCastingMeteo¶ ↑
Meteo is a realtime event processing engine. It can get time series data from a variety of sources and leverages Esper to do runtime analysis. Meteo can output data to different rendering engines for graphing purposes.
Listeners¶ ↑
Meteo can currently take data from:
-
Flat files
-
Netezza
-
ActiveMQ
-
JMX
Publishers¶ ↑
Meteo can currently publish data to:
-
Flat files
-
Arecibo
-
Graphite
-
OpenTSDB
-
Reconnoiter (via Resmon)
Build¶ ↑
mvn clean install
Run¶ ↑
java -Drt.configFile=rt_conf.json -Drt.esper.configFile=esper_conf.xml -Xmx4096m -Xms2048m -jar metrics.mateo-1.0.1-jar-with-dependencies.jar
Configuration¶ ↑
Publisher and listeners¶ ↑
This configuration file contains sample configurations for all currently defined publisher and subscriber types plus sample Esper statements:
{
"subscribers": [
{
"name": "AMQ",
"type": "com.ning.metrics.meteo.subscribers.AMQSubscriber",
"@class": "com.ning.metrics.meteo.subscribers.AMQSubscriberConfig",
"protocol": "tcp",
"host": "127.0.0.1",
"port": 35000,
"topic": "PerfEvent",
"eventOutputName": "PerfEvent",
"enabled": false
},
{
"name": "AMQ2",
"type": "com.ning.metrics.meteo.subscribers.AMQSubscriber",
"@class": "com.ning.metrics.meteo.subscribers.AMQSubscriberConfig",
"protocol": "tcp",
"host": "127.0.0.1",
"port": 35000,
"topic": "MyOtherTopic",
"eventOutputName": "MyOtherTopic",
"enabled": false
},
{
"name": "JMX",
"type": "com.ning.metrics.meteo.subscribers.JMXSubscriber",
"@class": "com.ning.metrics.meteo.subscribers.JMXSubscriberConfig",
"host": "127.0.0.1",
"query": "java.lang:type=OperatingSystem",
"attributes": "SystemLoadAverage",
"eventOutputName": "LoadAverage",
"enabled": false
},
{
"name": "Netezza",
"type": "com.ning.metrics.meteo.subscribers.NetezzaSubscriber",
"@class": "com.ning.metrics.meteo.subscribers.NetezzaSubscriberConfig",
"sqlQuery": "select html_time from visit_logs order by visit_date asc",
"host": "netezza.company.com",
"username": "pierre",
"password": "pierre",
"database": "visit",
"eventOutputName": "visit",
"enabled": false
},
{
"name": "File",
"type": "com.ning.metrics.meteo.subscribers.FileSubscriber",
"@class": "com.ning.metrics.meteo.subscribers.FileSubscriberConfig",
"filePath": "/var/tmp/someFile.csv",
"attributes": "SystemLoadAverage",
"eventOutputName": "LoadAverage",
"enabled": false
}
],
"publishers": [
{
"name": "Debug",
"type": "com.ning.metrics.meteo.publishers.DebugListener",
"@class": "com.ning.metrics.meteo.publishers.DebugPublisherConfig"
},
{
"name": "File",
"type": "com.ning.metrics.meteo.publishers.FileListener",
"@class": "com.ning.metrics.meteo.publishers.FilePublisherConfig",
"path": "/var/tmp/demo.csv"
},
{
"name": "Resmon",
"type": "com.ning.metrics.meteo.publishers.ResmonListener",
"@class": "com.ning.metrics.meteo.publishers.ResmonPublisherConfig",
"host": "127.0.0.1",
"port": 8083
},
{
"name": "Graphite",
"type": "com.ning.metrics.meteo.publishers.GraphiteListener",
"@class": "com.ning.metrics.meteo.publishers.GraphitePublisherConfig",
"host": "127.0.0.1",
"port": 2003
},
{
"name": "Arecibo",
"type": "com.ning.metrics.meteo.publishers.AreciboListener",
"@class": "com.ning.metrics.meteo.publishers.AreciboPublisherConfig",
"host": "127.0.0.1",
"port": 8080
},
{
"name": "OpenTSDB",
"type": "com.ning.metrics.meteo.publishers.OpenTSDBListener",
"@class": "com.ning.metrics.meteo.publishers.OpenTSDBPublisherConfig",
"host": "127.0.0.1",
"port": 4242
}
],
"streams": [
{
"name": "Performance metrics",
"sql": [
"insert into RawPerfStream select html_time from PerfEvent",
"insert into HWPerfStream select lastRaw as raw, forecast, deviation, smoothedDeviation from RawPerfStream.ning:predict(html_time, 0.3, 0.1)",
"select raw, forecast from HWPerfStream",
"select forecast + 2.5 * avg(deviation) as upper_band, forecast - 2.5 * avg(deviation) as lower_band from HWPerfStream.win:time(12 sec)"
],
"routes": [
{
"name": "OpenTSDB",
"filters": [ "raw", "forecast", "deviation", "upper_band", "lower_band" ],
"prefix": "Perf.html_render_time"
}
]
}
]
}
Esper¶ ↑
All events that esper should process, need to be declared in the esper configuration file beforehand. A sample configuration file looks like this:
<esper-configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="esper-configuration-1-0.xsd">
<event-type name="PerfEvent">
<java-util-map>
<map-property name="html_time" class="long"/>
</java-util-map>
</event-type>
<event-type name="LoadAverage">
<java-util-map>
<map-property name="timestamp" class="long"/>
<map-property name="SystemLoadAverage" class="long"/>
</java-util-map>
</event-type>
<plugin-aggregation-function name="tp" function-class="com.ning.metrics.meteo.esper.TPAggregator"/>
<plugin-view namespace="ning" name="predict"
factory-class="com.ning.metrics.meteo.esper.HoltWintersViewFactory"/>
</esper-configuration>
For more info see esper.codehaus.org/esper-4.2.0/doc/reference/en/html/configuration.html#configuration-via-xml
Adding routes at runtime¶ ↑
There is a REST interface one can use to upload streams at runtime. For instance, if newStream.json is:
{
"name": "Counts",
"sql": [
"select count(*) as count from Visit.win:time(1 sec) "
],
"routes": [
{
"name": "Jansky",
"filters": [ "count" ]
}
]
}
One can add it at runtime by POSTing it to /rest/1.0:
curl -v -XPOST http://127.0.0.1:8080/rest/1.0 -H'Content-type: application/json' [email protected]
Exposing data over HTTP¶ ↑
Meteo ships with a special publisher (com.ning.metrics.meteo.publishers.ResourceListener) to expose data over HTTP (jsonp). This is useful for graphing purposes (see github.com/pierre/metrics-dashboard for an example on how to use it with d3.js).
To use it, you need to add it as a publisher and configure a stream appropriately:
"publishers": [
{
"name": "Jansky",
"type": "com.ning.metrics.meteo.publishers.ResourceListener",
"@class": "com.ning.metrics.meteo.publishers.ResourcePublisherConfig"
}
],
"streams": [
{
"name": "Visitors",
"sql": [
"select sourceIpAddress as ip from Visit.win:time(1 sec)"
],
"routes": [
{
"name": "Jansky",
"filters": [ "ip" ]
}
]
}
]
You can now access the data via the /rest/1.0/{stream_name}/{esper_attribute} endpoint, e.g.:
curl http://127.0.0.1:8080/rest/1.0/Visitors/ip ; echo
License (see LICENSE-2.0.txt file for full license)¶ ↑
Copyright 2010-2013 Ning
Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.