Documentation > System Stored Procedures > @SetConfiguration

@SetConfiguration

Change the value of a list of HStoreConf parameters in the entire H-Store cluster. The changes will be sent to each HStoreSite and then validate that the current value is the same at all of them.

Please note that this operation is primarily used for benchmarking experiments and is not guaranteed to be consistent. That is, if the system procedure transaction fails at one HStoreSite, the HStoreConf changes made will not be rolled back at each site. Furthermore, the changes made by this procedure are not durable. When the system is restarted, the HStoreConf parameters will revert back to their default values and the values defined in the H-Store configuration file.

Not all parameters support being changed dynamically at run time, as this could put the database in an invalid state. Any class that implements the internal Configurable interface will be changed by this system procedure but not all of their parameters will updated.

Input Parameters

Return Values

Java Example

Client client = ClientFactory.createClient();
client = client.createConnection(hostname, port);
String confNames[] = { "site.exec_validate_work", "site.specexec_enable" };
String confValues[] = { "true", "true" };
ClientResponse cresponse = client.callProcedure("@SetConfiguration", confNames, confValues);

Command-Line Example

Not supported at this time