public void RepairTableWontRepairRowsWithHigherViewIdWhenIgnoreHigherViewIdRowsFlagIsSet()
{
TableOperation operation;
TableResult result;
CustomerEntity customer;
// - View has 2 replicas ?
View view = this.configurationWrapper.GetWriteView();
Assert.IsTrue(view.Chain.Count == 2, "expects 2 replicas only!");
// - Remove the Head, [None]->[RW]
RemoveHeadFromView(view.Name, 600, this.configurationService);
// 1 - Insert entries in old viewId
var rtable = new ReplicatedTable(this.repTable.TableName, this.configurationService);
string firstName = "FirstName";
string lastName = "LastName";
for (int i = 0; i < 10; i++)
{
customer = new CustomerEntity(firstName + i, lastName + i);
operation = TableOperation.Insert(customer);
rtable.Execute(operation);
}
// 2 - Increase viewId => so we can create rows with higher viewId
// - Update entry #5 and #8 in new viewId
ReplicatedTableConfiguration config;
ReplicatedTableQuorumReadResult readStatus = this.configurationService.RetrieveConfiguration(out config);
Assert.IsTrue(readStatus.Code == ReplicatedTableQuorumReadCode.Success);
ReplicatedTableConfigurationStore viewConfg = config.GetView(view.Name);
viewConfg.ViewId += 100;
this.configurationService.UpdateConfiguration(config);
foreach (int entryId in new int[] { 5, 8 })
{
operation = TableOperation.Retrieve <CustomerEntity>(firstName + entryId, lastName + entryId);
result = rtable.Execute(operation);
Assert.IsTrue(result != null && result.HttpStatusCode == (int)HttpStatusCode.OK && (CustomerEntity)result.Result != null, "Retrieve customer failed");
customer = (CustomerEntity)result.Result;
customer.Email = "*****@*****.**";
operation = TableOperation.Replace(customer);
result = rtable.Execute(operation);
Assert.IsTrue(result != null && result.HttpStatusCode == (int)HttpStatusCode.NoContent, "Update customer failed");
}
// 3 - Restore previous viewId, and,
// - Set 'IgnoreHigherViewIdRows' flag so we ignore rows with higher viewIds
readStatus = this.configurationService.RetrieveConfiguration(out config);
Assert.IsTrue(readStatus.Code == ReplicatedTableQuorumReadCode.Success);
viewConfg = config.GetView(view.Name);
viewConfg.ViewId -= 100;
config.SetIgnoreHigherViewIdRowsFlag(true);
this.configurationService.UpdateConfiguration(config);
try
{
// Check Retrieve of row #5 and #8 returns NotFound
foreach (int entryId in new int[] { 5, 8 })
{
operation = TableOperation.Retrieve <CustomerEntity>(firstName + entryId, lastName + entryId);
var retrievedResult = rtable.Execute(operation);
Assert.AreNotEqual(null, retrievedResult, "retrievedResult = null");
Assert.AreEqual((int)HttpStatusCode.NotFound, retrievedResult.HttpStatusCode, "retrievedResult.HttpStatusCode mismatch");
}
}
catch (ReplicatedTableStaleViewException)
{
Assert.Fail("Retrieve() is expected to NotFound the row, but got RTableStaleViewException !");
}
// 4 - Now insert a Head [WO]->[RW]
// - Then, call RepairTable ...
InsertHeadInView(view.Name, 600, this.configurationService);
ReconfigurationStatus status = rtable.RepairTable(0, null);
Assert.AreEqual(status, ReconfigurationStatus.PARTIAL_FAILURE, "rows with higher viewId should not be repaired");
// 5 - Check rows with higher viewId still NotFound, even after repair ...
try
{
// Check Retrieve of row #5 and #8 returns NotFound
foreach (int entryId in new int[] { 5, 8 })
{
operation = TableOperation.Retrieve <CustomerEntity>(firstName + entryId, lastName + entryId);
var retrievedResult = rtable.Execute(operation);
Assert.AreNotEqual(null, retrievedResult, "retrievedResult = null");
Assert.AreEqual((int)HttpStatusCode.NotFound, retrievedResult.HttpStatusCode, "retrievedResult.HttpStatusCode mismatch");
}
}
catch (ReplicatedTableStaleViewException)
{
Assert.Fail("Retrieve() is expected to NotFound the row, but got RTableStaleViewException !");
}
}
