private void init() {
String className = getClass().getSimpleName();
currentQueryPath = new Path(queryBasePath, className);
currentResultPath = new Path(resultBasePath, className);
currentDatasetPath = new Path(datasetBasePath, className);
try {
// if the current database is "default", we don't need create it because it is already
// prepated at startup time.
if (!currentDatabase.equals(TajoConstants.DEFAULT_DATABASE_NAME)) {
client.updateQuery("CREATE DATABASE IF NOT EXISTS " + currentDatabase);
}
client.selectDatabase(currentDatabase);
} catch (ServiceException e) {
e.printStackTrace();
}
}
private Response forwardToBlockingService(Request rpcRequest, BlockingService blockingService)
throws RpcException {
// Get matching method
MethodDescriptor method = getMethod(rpcRequest, blockingService.getDescriptorForType());
// Create request for method
Message request = getRequestProto(rpcRequest, blockingService.getRequestPrototype(method));
// Call method
SocketRpcController socketController = new SocketRpcController();
try {
Message response = blockingService.callBlockingMethod(method, socketController, request);
return createRpcResponse(response, true, socketController);
} catch (ServiceException e) {
throw new RpcException(ErrorReason.RPC_FAILED, e.getMessage(), e);
} catch (RuntimeException e) {
throw new RpcException(
ErrorReason.RPC_ERROR, "Error running method " + method.getFullName(), e);
}
}
/**
* Tests an on-the-fly RPC that was scheduled for the earlier RS on the same port for openRegion.
* The region server should reject this RPC. (HBASE-9721)
*/
@Test
public void testOpenCloseRegionRPCIntendedForPreviousServer() throws Exception {
Assert.assertTrue(getRS().getRegion(regionName).isAvailable());
ServerName sn = getRS().getServerName();
ServerName earlierServerName = ServerName.valueOf(sn.getHostname(), sn.getPort(), 1);
try {
CloseRegionRequest request =
RequestConverter.buildCloseRegionRequest(earlierServerName, regionName);
getRS().getRSRpcServices().closeRegion(null, request);
Assert.fail("The closeRegion should have been rejected");
} catch (ServiceException se) {
Assert.assertTrue(se.getCause() instanceof IOException);
Assert.assertTrue(
se.getCause().getMessage().contains("This RPC was intended for a different server"));
}
// actual close
closeRegionNoZK();
try {
AdminProtos.OpenRegionRequest orr =
RequestConverter.buildOpenRegionRequest(earlierServerName, hri, null, null);
getRS().getRSRpcServices().openRegion(null, orr);
Assert.fail("The openRegion should have been rejected");
} catch (ServiceException se) {
Assert.assertTrue(se.getCause() instanceof IOException);
Assert.assertTrue(
se.getCause().getMessage().contains("This RPC was intended for a different server"));
} finally {
openRegion(HTU, getRS(), hri);
}
}