Public Member Functions | |
| RAIDb1_RR (VirtualDatabase vdb, WaitForCompletionPolicy waitForCompletionPolicy) throws Exception | |
| ControllerResultSet | execReadRequest (SelectRequest request, MetadataCache metadataCache) throws SQLException |
| ControllerResultSet | execReadOnlyReadStoredProcedure (StoredProcedure proc, MetadataCache metadataCache) throws SQLException |
| String | getInformation () |
| String | getRaidb1Xml () |
The read requests coming from the Request Manager are sent in a round robin to the backend nodes. Write requests are broadcasted to all backends.
Definition at line 53 of file RAIDb1_RR.java.
|
||||||||||||
|
Creates a new RAIDb-1 Round Robin request load balancer.
Definition at line 74 of file RAIDb1_RR.java. 00076 {
00077 super(vdb, waitForCompletionPolicy);
00078 index = -1;
00079 }
|
|
||||||||||||
|
Selects the backend using a simple round-robin algorithm and executes the read request.
Implements org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer. Definition at line 105 of file RAIDb1_RR.java. 00107 {
00108 return executeRoundRobinRequest(proc, false, "Stored procedure ",
00109 metadataCache);
00110 }
|
|
||||||||||||
|
Selects the backend using a simple round-robin algorithm and executes the read request.
Implements org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1. Definition at line 92 of file RAIDb1_RR.java. 00094 {
00095 return executeRoundRobinRequest(request, true, "Request ", metadataCache);
00096 }
|
|
|
Gets information about the request load balancer.
Implements org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer. Definition at line 239 of file RAIDb1_RR.java. 00240 {
00241 // We don't lock since we don't need a top accurate value
00242 int size = vdb.getBackends().size();
00243
00244 if (size == 0)
00245 return "RAIDb-1 Round-Robin Request load balancer: !!!Warning!!! No backend nodes found\n";
00246 else
00247 return "RAIDb-1 Round-Robin Request load balancer (" + size
00248 + " backends)\n";
00249 }
|
|
|
Implements org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1. Definition at line 254 of file RAIDb1_RR.java. 00255 {
00256 return "<" + DatabasesXmlTags.ELT_RAIDb_1_RoundRobin + "/>";
00257 }
|
1.3.9.1