Difference between revisions of "ServiceManager Guide"
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* Given that the GenericWorker plugin depends on the Executor Service, when dynamically deploying the plugin the Executor Service is also deployed. | * Given that the GenericWorker plugin depends on the Executor Service, when dynamically deploying the plugin the Executor Service is also deployed. | ||
+ | |||
+ | == DTS == | ||
+ | |||
+ | === HW requirements === | ||
+ | |||
+ | The minimal installation requirements for an DTS node with a Generic Worker plugin are a Single CPU node with 2GB RAMm but it's more than recommended to have at least 3GB RAM on the node dedicated to the GHN. | ||
+ | |||
+ | === Configuration === | ||
+ | |||
+ | DTS uses Execution Engine to run the transformations so at least on Execution Engine shoud be deployed in the same scope as DTS and the related GHNLabels.xml file should contain | ||
+ | |||
+ | <pre> | ||
+ | <Variable> | ||
+ | <Key>dts.execution</Key> | ||
+ | <Value>true</Value> | ||
+ | </Variable> | ||
+ | </pre> | ||
+ | |||
+ | === Known Issues === | ||
+ | |||
+ | none |
Revision as of 12:39, 18 November 2013
This part of the guide is intended to cover the installation and configuration of gCube services that are not mentioned in the Administration guide. Mainly we refer to services that are not Enabling and that can be installed dynamically by the Infrastructure/VO Managers. The list includes also for each component known issues and specific configuration steps to follow.
Contents
Search
The installation of a Search Node in gCube is characterised by the installation of 2 web-services ( in the minimal configuration ) :
- SearchSystemService
- ExecutionEngineService
This is the minimal installation scenario but it's possible to enable distributed search as well and this will required the installation and configuration of several ExecutionEngineServices
HW requirements
The minimal installation requirements for a Search node are a Single CPU node with 2GB RAMm but it's more than recommended to have at least 3GB RAM on the node dedicated to the GHN.
Configuration
The SearchSystemService and ExecutionEngineService have to be automatically/manually deployed in a VRE scope. In addition if we want to configure the SearchSystemService to exploit the local ExecutionEngineService to run the queries ( minimal installation) we should configure the jndi service as follows:
- excludeLocal = false
- collocationThreshold = 0.3f
- complexPlanNumNodes = 800000
Known Issues
- The dynamic co-deployment of ExecutionEngine and Search service carries 2 RR configuration jars ( the one for search and the other for ExecutionEngine). The RR configuration for the ExecutionEngine should be removed manually.
- the rrcongprovider-service component is not shipeed with the Search service ( issues with circular dependencies), therefore must be installed manually.
- the search node should run at VRE level, manually we should add the VRE scope to the GHNProfile startScopes property.
Executor and GenericWorker
HW requirements
The minimal installation requirements for an Executor node with a Generic Worker plugin are a Single CPU node with 2GB RAMm but it's more than recommended to have at least 3GB RAM on the node dedicated to the GHN.
Configuration
The following Software should be installed on the VM:
- R version 2.14.1
whit the following components
- coda
- R2jags
- R2WinBUGS
- rjags
- bayesmix
- runjags
Known Issues
- The GenericWorker is exploited by the Statistical Manager service to run distributed computations. Given that the SM use the root scope to discover instances of the GenericWorker. the plugin must be deployed at root scope level
- Given that the GenericWorker plugin depends on the Executor Service, when dynamically deploying the plugin the Executor Service is also deployed.
DTS
HW requirements
The minimal installation requirements for an DTS node with a Generic Worker plugin are a Single CPU node with 2GB RAMm but it's more than recommended to have at least 3GB RAM on the node dedicated to the GHN.
Configuration
DTS uses Execution Engine to run the transformations so at least on Execution Engine shoud be deployed in the same scope as DTS and the related GHNLabels.xml file should contain
<Variable> <Key>dts.execution</Key> <Value>true</Value> </Variable>
Known Issues
none