Runtime Resources
This section describes the Other types of nodes which are deployed on the D4ScienceAn e-Infrastructure operated by the D4Science.org initiative. Ecosystem and exploited by the iMarine VREs. The Services described on this section are modeled as a particular type of Resources on the Information System ( Runtime Resources ) to the possibility to the gCube services which connect to them to dynamically discover their location and their encrypted access information.
Message Broker
ActiveMQ [1] is the Message Broker service exploited by the gCube framework.
The ActiveMQ broker is the key point of both Monitoring and Accounting functionalities in iMarine, because it routes messages coming from different probes to consumers which then make available information about gHNs status, infrastructure usage and user exploitation of the iMarine portal.
The current configuration deployed in production consists of a single instance of ActiveMQ deployed together with a MySQL server to implement message persistency, but a new deployment scenario is under testing. This new scenario will allow the deployment of a network of brokers, in order to ensure Messaging reliability and improve performances.
This table shows the information about the ActiveMQ instances deployed in the D4science Ecosystem :
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GeoServer
The GeoServer service is deployed in the D4science Ecosystem to enable GIS visualization of AquaMaps distribution and biodiversity maps. The Service is deployed together with an instance of PostgreSQL DB, in order to store GIS data.
The following GeoServer instances are deployed in the D4science Ecosystem:
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Service Availability DB
The SAM infrastructure exploits remote DBs in order to store SAM tests results.
Currently the following SAM DBs are available on the D4ScienceAn e-Infrastructure operated by the D4Science.org initiative. Ecosystem:
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RStudio
The R-Studio (http://www.rstudio.org/) service is integrated within the gCube TimeSeries Environment to enable statistical elaboration of TimeSeries using the R language
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WAR Mangement Tomcat
In order to support the WAR Management extension in gCube, some GHNs are responsible for the deployment/activation of Web applications on Apache Tomcat instances deployed in the production Infrastructure:
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