An implementation of XML Simple Virtual Partitioning with a master-slave load balance mechanism.
1 - Generate XML dataset catalog
2 - Edit files input/PartixVPConfig.xml and input/CQP.conf to configure host:port of the processing nodes that will be used in the query processing
3 - Run NodeQueryProcessorEngine.java on each processing node. This makes the nodes listen and wait for subqueries to process. The parameters are as follows:
- String hostName, int port, String databaseName, String dbLogin, String dbPassword, boolean quotedDateIntervals, int dbmsX
Examples of possible values:
- java NodeQueryProcessorEngine 192.168.0.11 3001 dblp SYSTEM MANAGER 0 1
- java NodeQueryProcessorEngine localhost 3002 dblp SYSTEM MANAGER 0 1
The dbmsx parameter should be set ot 1 if you are using Sedna on each node, and 2 for BaseX
4 - Run CQP_Scheduler_Engine.java on the coordinator node. It keeps waiting for a client query to be processed. The parameters are as follows:
- String CQP_address, int CQP_port_number, String ConfigFileName
Examples of possible values are as follows:
- java CQP_Scheduler_Engine 192.168.0.11 8050 "input/CQP.conf"
5 - Run ClusterQueryProcessorAdmin.java. The parameters are as follows:
- String ServerName, int PortNumber, STRING op
The op parameter can be set to SHUTDOWN or SET_CLUSTER_SIZE size
Example:
- java ClusterQueryProcessorAdmin 192.168.0.11 8050 SET_CLUSTER_SIZE 2
6 - Run ConnectionManagerImpl.java. The parameters are as follows:
- int port, String configFileName
Example:
- java ConnectionManagerImpl 8051 "input/PartiXVPConfig.xml"
7 - Run TestAvpLoadBalancing.java. The parameters are as follows:
- String cqp_address, int port, int numNQPs, String vpStrategy, int idQuery, int numberOfExecutions, boolean performDynamicLoadBalancing(true|false)
The options for the vpStrategy parameter are SVP, AVP, AVP_WR, CENTRALIZED
Example:
- java TestVirtualPartitioning 192.168.0.11 8050 2 AVP 1 1 false
8 - Run TestAvpDummy.java. The parameters are as follows:
- String node_address, int port, int numNQPs, String vpStrategy, int idQuery, int numberOfExecutions, boolean performDynamicLoadBalancing
Example:
- java TestAvpDummy localhost 8050 2 AVP 1 1 false
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