public void LoadTestPointMappingDDR()
{
try
{
ShardMapManager smm = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString, ShardMapManagerLoadPolicy.Lazy);
ListShardMap <int> lsm = smm.GetListShardMap <int>(ShardMapManagerLoadTests.s_listShardMapName);
Assert.IsNotNull(lsm);
PointMapping <int> p1 = this.GetRandomPointMapping(lsm);
if (p1 != null)
{
Debug.WriteLine("Trying to validate point mapping for key {0}", p1.Key);
// Validate mapping by trying to connect
s_retryPolicy.ExecuteAction(
() => ValidateImpl(
(ShardMap)lsm,
(int)(p1.Key.Value)));
}
}
catch (ShardManagementException sme)
{
Debug.WriteLine("Exception caught: {0}", sme.Message);
}
}
public void LoadTestMarkAllShardsAsOnlineInListShardMap()
{
try
{
ShardMapManager smm = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
ListShardMap <int> lsm = smm.GetListShardMap <int>(ShardMapManagerLoadTests.s_listShardMapName);
Assert.IsNotNull(lsm);
foreach (Shard s in lsm.GetShards())
{
if (s.Status == ShardStatus.Offline)
{
lsm.UpdateShard(s,
new ShardUpdate
{
Status = ShardStatus.Online
});
}
}
}
catch (ShardManagementException sme)
{
Debug.WriteLine("Exception caught: {0}", sme.Message);
}
}
public void LoadTestDeletePointMapping()
{
try
{
ShardMapManager smm = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
ListShardMap <int> lsm = smm.GetListShardMap <int>(ShardMapManagerLoadTests.s_listShardMapName);
Assert.IsNotNull(lsm);
PointMapping <int> p1 = this.GetRandomPointMapping(lsm);
if (p1 != null)
{
Debug.WriteLine("Trying to delete point mapping for key {0}", p1.Key);
PointMappingUpdate pu = new PointMappingUpdate();
pu.Status = MappingStatus.Offline;
PointMapping <int> mappingToDelete = lsm.UpdateMapping(p1, pu);
lsm.DeleteMapping(mappingToDelete);
}
}
catch (ShardManagementException sme)
{
Debug.WriteLine("Exception caught: {0}", sme.Message);
}
}
public void LoadTestRemoveShardFromListShardMap()
{
try
{
ShardMapManager smm = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
ListShardMap <int> lsm = smm.GetListShardMap <int>(ShardMapManagerLoadTests.s_listShardMapName);
Assert.IsNotNull(lsm);
List <Shard> existingShards = lsm.GetShards().ToList();
if (existingShards.Count == 0)
{
return;
}
// If there is already a shard marked as offline, chose that one to delete.
// This can happend if earlier remove operation was terminated for some reason - ex. killing connections.
Shard offlineShard = existingShards.Find(e => e.Status == ShardStatus.Offline);
if (offlineShard == null)
{
offlineShard = existingShards[_r.Next(existingShards.Count)];
// First mark shard as offline so that other test threads will not add new mappings to it.
offlineShard = lsm.UpdateShard(offlineShard,
new ShardUpdate
{
Status = ShardStatus.Offline
});
}
Debug.WriteLine("Trying to remove shard at location {0}", offlineShard.Location);
PointMappingUpdate pu = new PointMappingUpdate();
pu.Status = MappingStatus.Offline;
// Remove all mappings from this shard for given shard map.
foreach (PointMapping <int> p in lsm.GetMappings(offlineShard))
{
PointMapping <int> mappingToDelete = lsm.UpdateMapping(p, pu);
lsm.DeleteMapping(mappingToDelete);
}
// Shard object is changed as mappings are removed, get it again.
Shard deleteShard = lsm.GetShard(offlineShard.Location);
// now remove shard.
lsm.DeleteShard(deleteShard);
Debug.WriteLine("Removed shard at location {0} from shard map {1}", deleteShard.Location, lsm);
}
catch (ShardManagementException sme)
{
Debug.WriteLine("Exception caught: {0}", sme.Message);
}
}
public void DateDeletePointMappingDefault()
{
CountingCacheStore countingCache = new CountingCacheStore(new CacheStore());
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
countingCache,
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero),
RetryBehavior.DefaultRetryBehavior);
ListShardMap <DateTime> lsm = smm.GetListShardMap <DateTime>(DateTimeShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, DateTimeShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
DateTime val = DateTime.Now;
PointMapping <DateTime> p1 = lsm.CreatePointMapping(val, s);
PointMapping <DateTime> p2 = lsm.GetMappingForKey(val);
Assert.IsNotNull(p2);
Assert.AreEqual(0, countingCache.LookupMappingHitCount);
// The mapping must be made offline first before it can be deleted.
PointMappingUpdate ru = new PointMappingUpdate();
ru.Status = MappingStatus.Offline;
PointMapping <DateTime> mappingToDelete = lsm.UpdateMapping(p1, ru);
lsm.DeleteMapping(mappingToDelete);
// Try to get from store. Because the mapping is missing from the store, we will try to
// invalidate the cache, but since it is also missing from cache there will be an cache miss.
bool lookupFailed = false;
try
{
PointMapping <DateTime> pLookup = lsm.GetMappingForKey(val);
}
catch (ShardManagementException sme)
{
Assert.AreEqual(ShardManagementErrorCategory.ListShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.MappingNotFoundForKey, sme.ErrorCode);
lookupFailed = true;
}
Assert.IsTrue(lookupFailed);
Assert.AreEqual(1, countingCache.LookupMappingMissCount);
}
public void LoadTestAddPointMapping()
{
try
{
ShardMapManager smm = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
ListShardMap <int> lsm = smm.GetListShardMap <int>(ShardMapManagerLoadTests.s_listShardMapName);
Assert.IsNotNull(lsm);
do
{
// Chose a random shard to add mapping.
Shard s = GetRandomOnlineShardFromShardMap((ShardMap)lsm);
if (s == null)
{
continue;
}
// Create a random integer key for a new mapping and verify that its not already present in this shard map.
int key = _r.Next(MinMappingPoint, MaxMappingPoint);
PointMapping <int> pExisting = null;
// choose different mapping if this one already exists.
if (lsm.TryGetMappingForKey(key, out pExisting))
{
continue;
}
Debug.WriteLine("Trying to add point mapping for key {0} to shard location {1}", key, s.Location);
PointMapping <int> p1 = lsm.CreatePointMapping(key, s);
Assert.IsNotNull(p1);
// Validate mapping by trying to connect
s_retryPolicy.ExecuteAction(
() => ValidateImpl(
(ShardMap)lsm,
key));
}while (false);
}
catch (ShardManagementException sme)
{
Debug.WriteLine("Exception caught: {0}", sme.Message);
}
}
public void DateAddPointMappingDuplicate()
{
CountingCacheStore countingCache = new CountingCacheStore(new CacheStore());
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
countingCache,
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap <DateTime> lsm = smm.GetListShardMap <DateTime>(DateTimeShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, DateTimeShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
DateTime val = DateTime.Now;
PointMapping <DateTime> p1 = lsm.CreatePointMapping(val, s);
Assert.IsNotNull(p1);
bool addFailed = false;
try
{
// add same point mapping again.
PointMapping <DateTime> pNew = lsm.CreatePointMapping(val, s);
}
catch (ShardManagementException sme)
{
Assert.AreEqual(ShardManagementErrorCategory.ListShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.MappingPointAlreadyMapped, sme.ErrorCode);
addFailed = true;
}
Assert.IsTrue(addFailed);
PointMapping <DateTime> p2 = lsm.GetMappingForKey(val);
Assert.IsNotNull(p2);
Assert.AreEqual(0, countingCache.LookupMappingHitCount);
}
public void DateDeletePointMappingNonExisting()
{
ShardMapManager smm = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
ListShardMap <DateTime> lsm = smm.GetListShardMap <DateTime>(DateTimeShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, DateTimeShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
DateTime val = DateTime.Now;
PointMapping <DateTime> p1 = lsm.CreatePointMapping(val, s);
Assert.IsNotNull(p1);
PointMappingUpdate ru = new PointMappingUpdate();
ru.Status = MappingStatus.Offline;
// The mapping must be made offline before it can be deleted.
p1 = lsm.UpdateMapping(p1, ru);
lsm.DeleteMapping(p1);
bool removeFailed = false;
try
{
lsm.DeleteMapping(p1);
}
catch (ShardManagementException sme)
{
Assert.AreEqual(ShardManagementErrorCategory.ListShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.MappingDoesNotExist, sme.ErrorCode);
removeFailed = true;
}
Assert.IsTrue(removeFailed);
}
public void LoadTestAddShardToListShardMap()
{
try
{
ShardMapManager smm = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
ListShardMap <int> lsm = smm.GetListShardMap <int>(ShardMapManagerLoadTests.s_listShardMapName);
Assert.IsNotNull(lsm);
AddShardToShardMap((ShardMap)lsm);
}
catch (ShardManagementException sme)
{
Debug.WriteLine("Exception caught: {0}", sme.Message);
}
}
public void DateAddPointMappingDefault()
{
CountingCacheStore countingCache = new CountingCacheStore(new CacheStore());
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
countingCache,
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap <DateTime> lsm = smm.GetListShardMap <DateTime>(DateTimeShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, DateTimeShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
DateTime val = DateTime.Now;
PointMapping <DateTime> p1 = lsm.CreatePointMapping(val, s);
Assert.IsNotNull(p1);
PointMapping <DateTime> p2 = lsm.GetMappingForKey(val);
Assert.IsNotNull(p2);
Assert.AreEqual(0, countingCache.LookupMappingCount);
Assert.AreEqual(0, countingCache.LookupMappingHitCount);
// Validate mapping by trying to connect
using (SqlConnection conn = lsm.OpenConnection(
p1,
Globals.ShardUserConnectionString,
ConnectionOptions.Validate))
{
}
}
public void AddPointMappingDefault()
{
CountingCacheStore countingCache = new CountingCacheStore(new CacheStore());
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
countingCache,
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
PointMapping<int> p1 = lsm.CreatePointMapping(2, s);
Assert.IsNotNull(p1);
PointMapping<int> p2 = lsm.GetMappingForKey(2);
Assert.IsNotNull(p2);
Assert.AreEqual(0, countingCache.LookupMappingCount);
Assert.AreEqual(0, countingCache.LookupMappingHitCount);
// Validate mapping by trying to connect
using (SqlConnection conn = lsm.OpenConnection(
p1,
Globals.ShardUserConnectionString,
ConnectionOptions.Validate))
{
}
}
public void DateGetPointMappingsForRange()
{
ShardMapManager smm = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
ListShardMap <DateTime> lsm = smm.GetListShardMap <DateTime>(DateTimeShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
Shard s1 = lsm.CreateShard(new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, DateTimeShardMapperTests.s_shardedDBs[0]));
Assert.IsNotNull(s1);
Shard s2 = lsm.CreateShard(new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, DateTimeShardMapperTests.s_shardedDBs[1]));
Assert.IsNotNull(s2);
DateTime val1 = DateTime.Now.Subtract(TimeSpan.FromMinutes(10));
PointMapping <DateTime> p1 = lsm.CreatePointMapping(val1, s1);
Assert.IsNotNull(p1);
DateTime val2 = DateTime.Now.Subtract(TimeSpan.FromMinutes(20));
PointMapping <DateTime> p2 = lsm.CreatePointMapping(val2, s1);
Assert.IsNotNull(p2);
DateTime val3 = DateTime.Now.Subtract(TimeSpan.FromMinutes(30));
PointMapping <DateTime> p3 = lsm.CreatePointMapping(val3, s2);
Assert.IsNotNull(p2);
// Get all mappings in shard map.
int count = 0;
IEnumerable <PointMapping <DateTime> > allMappings = lsm.GetMappings();
using (IEnumerator <PointMapping <DateTime> > mEnum = allMappings.GetEnumerator())
{
while (mEnum.MoveNext())
{
count++;
}
}
Assert.AreEqual(3, count);
// Get all mappings in specified range.
Range <DateTime> wantedRange = new Range <DateTime>(val3.AddMinutes(-5), val3.AddMinutes(15));
count = 0;
IEnumerable <PointMapping <DateTime> > mappingsInRange = lsm.GetMappings(wantedRange);
using (IEnumerator <PointMapping <DateTime> > mEnum = mappingsInRange.GetEnumerator())
{
while (mEnum.MoveNext())
{
count++;
}
}
Assert.AreEqual(2, count);
// Get all mappings for a shard.
count = 0;
IEnumerable <PointMapping <DateTime> > mappingsForShard = lsm.GetMappings(s1);
using (IEnumerator <PointMapping <DateTime> > mEnum = mappingsForShard.GetEnumerator())
{
while (mEnum.MoveNext())
{
count++;
}
}
Assert.AreEqual(2, count);
// Get all mappings in specified range for a particular shard.
count = 0;
IEnumerable <PointMapping <DateTime> > mappingsInRangeForShard = lsm.GetMappings(wantedRange, s1);
using (IEnumerator <PointMapping <DateTime> > mEnum = mappingsInRangeForShard.GetEnumerator())
{
while (mEnum.MoveNext())
{
count++;
}
}
Assert.AreEqual(1, count);
}
public void BasicScenarioListShardMaps()
{
bool success = true;
string shardMapName = "PerTenantShardMap";
try
{
#region DeployShardMapManager
// Deploy shard map manager.
ShardMapManagerFactory.CreateSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerCreateMode.ReplaceExisting);
#endregion DeployShardMapManager
#region GetShardMapManager
// Obtain shard map manager.
ShardMapManager shardMapManager = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
#endregion GetShardMapManager
#region CreateListShardMap
// Create a single user per-tenant shard map.
ListShardMap <int> perTenantShardMap = shardMapManager.CreateListShardMap <int>(shardMapName);
#endregion CreateListShardMap
#region CreateShardAndPointMapping
for (int i = 0; i < ScenarioTests.s_perTenantDBs.Length; i++)
{
// Create the shard.
Shard s = perTenantShardMap.CreateShard(
new ShardLocation(
Globals.ShardMapManagerTestsDatasourceName,
ScenarioTests.s_perTenantDBs[i]));
// Create the mapping.
PointMapping <int> p = perTenantShardMap.CreatePointMapping(
i + 1,
s);
}
#endregion CreateShardAndPointMapping
#region UpdatePointMapping
// Let's add another point 5 and map it to same shard as 1.
PointMapping <int> mappingForOne = perTenantShardMap.GetMappingForKey(1);
PointMapping <int> mappingForFive = perTenantShardMap.CreatePointMapping(5, mappingForOne.Shard);
Assert.IsTrue(mappingForOne.Shard.Location.Equals(mappingForFive.Shard.Location));
// Move 3 from PerTenantDB3 to PerTenantDB for 5.
PointMapping <int> mappingToUpdate = perTenantShardMap.GetMappingForKey(3);
bool updateFailed = false;
// Try updating that shard in the mapping without taking it offline first.
try
{
perTenantShardMap.UpdateMapping(
mappingToUpdate,
new PointMappingUpdate
{
Shard = mappingForFive.Shard
});
}
catch (ShardManagementException smme)
{
Assert.AreEqual(smme.ErrorCode, ShardManagementErrorCode.MappingIsNotOffline);
updateFailed = true;
}
Assert.IsTrue(updateFailed);
// Perform the actual update.
PointMapping <int> newMappingFor3 = MarkMappingOfflineAndUpdateShard <int>(
perTenantShardMap, mappingToUpdate, mappingForFive.Shard);
// Verify that update succeeded.
Assert.IsTrue(newMappingFor3.Shard.Location.Equals(mappingForFive.Shard.Location));
Assert.IsTrue(newMappingFor3.Status == MappingStatus.Offline);
// Update custom field for the updated mapping.
//PointMapping<int> veryNewMappingFor3 = perTenantShardMap.UpdatePointMapping(
// newMappingFor3,
// new PointMappingUpdate
// {
// Custom = new byte[] { 0x12, 0x34 }
// });
#endregion UpdatePointMapping
#region DeleteMapping
// Find the shard by location.
PointMapping <int> mappingToDelete = perTenantShardMap.GetMappingForKey(5);
bool operationFailed = false;
// Try to delete mapping while it is online, the delete should fail.
try
{
perTenantShardMap.DeleteMapping(mappingToDelete);
}
catch (ShardManagementException smme)
{
operationFailed = true;
Assert.AreEqual(smme.ErrorCode, ShardManagementErrorCode.MappingIsNotOffline);
}
Trace.Assert(operationFailed);
// The mapping must be taken offline first before it can be deleted.
mappingToDelete = perTenantShardMap.UpdateMapping(
mappingToDelete,
new PointMappingUpdate
{
Status = MappingStatus.Offline,
});
perTenantShardMap.DeleteMapping(mappingToDelete);
// Verify that delete succeeded.
try
{
PointMapping <int> deletedMapping = perTenantShardMap.GetMappingForKey(5);
}
catch (ShardManagementException smme)
{
Assert.AreEqual(smme.ErrorCode, ShardManagementErrorCode.MappingNotFoundForKey);
}
#endregion DeleteMapping
#region OpenConnection without Validation
using (SqlConnection conn = perTenantShardMap.OpenConnectionForKey(
2,
Globals.ShardUserConnectionString,
ConnectionOptions.None))
{
}
#endregion OpenConnection without Validation
#region OpenConnection with Validation
// Use the stale state of "shardToUpdate" shard & see if validation works.
bool validationFailed = false;
try
{
using (SqlConnection conn = perTenantShardMap.OpenConnection(
mappingToDelete,
Globals.ShardUserConnectionString,
ConnectionOptions.Validate))
{
}
}
catch (ShardManagementException smme)
{
validationFailed = true;
Assert.AreEqual(smme.ErrorCode, ShardManagementErrorCode.MappingDoesNotExist);
}
Assert.AreEqual(validationFailed, true);
#endregion OpenConnection with Validation
#region OpenConnection without Validation and Empty Cache
// Obtain a new ShardMapManager instance
ShardMapManager newShardMapManager = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
// Get the ShardMap
ListShardMap <int> newPerTenantShardMap = newShardMapManager.GetListShardMap <int>(shardMapName);
using (SqlConnection conn = newPerTenantShardMap.OpenConnectionForKey(
2,
Globals.ShardUserConnectionString,
ConnectionOptions.None))
{
}
#endregion
#region OpenConnection with Validation and Empty Cache
// Use the stale state of "shardToUpdate" shard & see if validation works.
validationFailed = false;
// Obtain a new ShardMapManager instance
newShardMapManager = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
// Get the ShardMap
newPerTenantShardMap = newShardMapManager.GetListShardMap <int>(shardMapName);
// Create a new mapping
PointMapping <int> newMappingToDelete = newPerTenantShardMap.CreatePointMapping(6,
newPerTenantShardMap.GetMappingForKey(1).Shard);
// Delete the mapping
newMappingToDelete = newPerTenantShardMap.UpdateMapping(
newMappingToDelete,
new PointMappingUpdate
{
Status = MappingStatus.Offline,
});
newPerTenantShardMap.DeleteMapping(newMappingToDelete);
try
{
using (SqlConnection conn = newPerTenantShardMap.OpenConnection(
newMappingToDelete,
Globals.ShardUserConnectionString,
ConnectionOptions.Validate))
{
}
}
catch (ShardManagementException smme)
{
validationFailed = true;
Assert.AreEqual(smme.ErrorCode, ShardManagementErrorCode.MappingDoesNotExist);
}
Assert.AreEqual(validationFailed, true);
#endregion
#region OpenConnectionAsync without Validation
using (SqlConnection conn = perTenantShardMap.OpenConnectionForKeyAsync(
2,
Globals.ShardUserConnectionString,
ConnectionOptions.None).Result)
{
}
#endregion
#region OpenConnectionAsync with Validation
// Use the stale state of "shardToUpdate" shard & see if validation works.
validationFailed = false;
try
{
using (SqlConnection conn = perTenantShardMap.OpenConnectionAsync(
mappingToDelete,
Globals.ShardUserConnectionString,
ConnectionOptions.Validate).Result)
{
}
}
catch (AggregateException ex)
{
ShardManagementException smme = ex.InnerException as ShardManagementException;
if (smme != null)
{
validationFailed = true;
Assert.AreEqual(smme.ErrorCode, ShardManagementErrorCode.MappingDoesNotExist);
}
}
Assert.AreEqual(validationFailed, true);
#endregion
#region OpenConnectionAsync without Validation and Empty Cache
// Obtain a new ShardMapManager instance
newShardMapManager = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
// Get the ShardMap
newPerTenantShardMap = newShardMapManager.GetListShardMap <int>(shardMapName);
using (SqlConnection conn = newPerTenantShardMap.OpenConnectionForKeyAsync(
2,
Globals.ShardUserConnectionString,
ConnectionOptions.None).Result)
{
}
#endregion
#region OpenConnectionAsync with Validation and Empty Cache
// Use the stale state of "shardToUpdate" shard & see if validation works.
validationFailed = false;
// Obtain a new ShardMapManager instance
newShardMapManager = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
// Get the ShardMap
newPerTenantShardMap = newShardMapManager.GetListShardMap <int>(shardMapName);
// Create a new mapping
newMappingToDelete = newPerTenantShardMap.CreatePointMapping(6,
newPerTenantShardMap.GetMappingForKey(1).Shard);
// Delete the mapping
newMappingToDelete = newPerTenantShardMap.UpdateMapping(
newMappingToDelete,
new PointMappingUpdate
{
Status = MappingStatus.Offline,
});
newPerTenantShardMap.DeleteMapping(newMappingToDelete);
try
{
using (SqlConnection conn = newPerTenantShardMap.OpenConnectionAsync(
newMappingToDelete,
Globals.ShardUserConnectionString,
ConnectionOptions.Validate).Result)
{
}
}
catch (AggregateException ex)
{
ShardManagementException smme = ex.InnerException as ShardManagementException;
if (smme != null)
{
validationFailed = true;
Assert.AreEqual(smme.ErrorCode, ShardManagementErrorCode.MappingDoesNotExist);
}
}
Assert.AreEqual(validationFailed, true);
#endregion
#region LookupPointMapping
// Perform tenant lookup. This will populate the cache.
for (int i = 0; i < ScenarioTests.s_perTenantDBs.Length; i++)
{
PointMapping <int> result = shardMapManager
.GetListShardMap <int>("PerTenantShardMap")
.GetMappingForKey(i + 1);
Trace.WriteLine(result.Shard.Location);
// Since we moved 3 to database 1 earlier.
Assert.IsTrue(result.Shard.Location.Database == ScenarioTests.s_perTenantDBs[i != 2 ? i : 0]);
}
// Perform tenant lookup. This will read from the cache.
for (int i = 0; i < ScenarioTests.s_perTenantDBs.Length; i++)
{
PointMapping <int> result = shardMapManager
.GetListShardMap <int>("PerTenantShardMap")
.GetMappingForKey(i + 1);
Trace.WriteLine(result.Shard.Location);
// Since we moved 3 to database 1 earlier.
Assert.IsTrue(result.Shard.Location.Database == ScenarioTests.s_perTenantDBs[i != 2 ? i : 0]);
}
#endregion LookupPointMapping
}
catch (ShardManagementException smme)
{
success = false;
Trace.WriteLine(String.Format("Error Category: {0}", smme.ErrorCategory));
Trace.WriteLine(String.Format("Error Code : {0}", smme.ErrorCode));
Trace.WriteLine(String.Format("Error Message : {0}", smme.Message));
if (smme.InnerException != null)
{
Trace.WriteLine(String.Format("Storage Error Message : {0}", smme.InnerException.Message));
if (smme.InnerException.InnerException != null)
{
Trace.WriteLine(String.Format("SqlClient Error Message : {0}", smme.InnerException.InnerException.Message));
}
}
}
Assert.IsTrue(success);
}
public void DeletePointMappingAbortLSM()
{
IStoreOperationFactory sof = new StubStoreOperationFactory()
{
CallBase = true,
CreateRemoveMappingOperationShardMapManagerStoreOperationCodeIStoreShardMapIStoreMappingGuid =
(_smm, _opcode, _ssm, _sm, _loid) =>
{
StubRemoveMappingOperation op = new StubRemoveMappingOperation(_smm, _opcode, _ssm, _sm, _loid);
op.CallBase = true;
op.DoLocalSourceExecuteIStoreTransactionScope = (ts) =>
{
throw new StoreException("", ShardMapFaultHandlingTests.TransientSqlException);
};
return op;
}
};
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
sof,
new CacheStore(),
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
PointMapping<int> p1 = lsm.CreatePointMapping(1, s);
PointMappingUpdate ru = new PointMappingUpdate();
ru.Status = MappingStatus.Offline;
// The mapping must be made offline before it can be deleted.
p1 = lsm.UpdateMapping(p1, ru);
Assert.AreEqual(MappingStatus.Offline, p1.Status);
bool storeOperationFailed = false;
try
{
lsm.DeleteMapping(p1);
}
catch (ShardManagementException sme)
{
Assert.AreEqual(ShardManagementErrorCategory.ListShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.StorageOperationFailure, sme.ErrorCode);
storeOperationFailed = true;
}
Assert.IsTrue(storeOperationFailed);
// validation: Lookup point will succeed.
PointMapping<int> pNew = lsm.GetMappingForKey(1);
Assert.IsNotNull(pNew);
}
public void AddPointMappingNoCacheUpdate()
{
// Create a cache store that never inserts.
CountingCacheStore cacheStore =
new CountingCacheStore(
new StubCacheStore()
{
CallBase = true,
AddOrUpdateMappingIStoreMappingCacheStoreMappingUpdatePolicy = (ssm, p) => { }
});
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
cacheStore,
ShardMapManagerLoadPolicy.Lazy,
RetryPolicy.DefaultRetryPolicy, RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
PointMapping<int> p1 = lsm.CreatePointMapping(2, s);
Assert.IsNotNull(p1);
PointMapping<int> p2 = lsm.GetMappingForKey(2);
Assert.IsNotNull(p2);
Assert.AreEqual(0, cacheStore.LookupMappingMissCount);
}
public void UpdatePointMappingDefault()
{
CountingCacheStore countingCache = new CountingCacheStore(new CacheStore());
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
countingCache,
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero),
RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
PointMapping<int> p1 = lsm.CreatePointMapping(1, s);
PointMappingUpdate pu = new PointMappingUpdate();
pu.Status = MappingStatus.Offline;
PointMapping<int> pNew = lsm.UpdateMapping(p1, pu);
Assert.IsNotNull(pNew);
PointMapping<int> p2 = lsm.GetMappingForKey(1);
Assert.IsNotNull(p2);
Assert.AreEqual(0, countingCache.LookupMappingHitCount);
// Mark the mapping online again so that it will be cleaned up
pu.Status = MappingStatus.Online;
PointMapping<int> pUpdated = lsm.UpdateMapping(pNew, pu);
Assert.IsNotNull(pUpdated);
}
public void DeletePointMappingDefault()
{
CountingCacheStore countingCache = new CountingCacheStore(new CacheStore());
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
countingCache,
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero),
RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
PointMapping<int> p1 = lsm.CreatePointMapping(1, s);
PointMapping<int> p2 = lsm.GetMappingForKey(1);
Assert.IsNotNull(p2);
Assert.AreEqual(0, countingCache.LookupMappingHitCount);
// The mapping must be made offline first before it can be deleted.
PointMappingUpdate ru = new PointMappingUpdate();
ru.Status = MappingStatus.Offline;
PointMapping<int> mappingToDelete = lsm.UpdateMapping(p1, ru);
lsm.DeleteMapping(mappingToDelete);
// Verify that the mapping is removed from cache.
bool lookupFailed = false;
try
{
PointMapping<int> pLookup = lsm.GetMappingForKey(1);
}
catch (ShardManagementException sme)
{
Assert.AreEqual(ShardManagementErrorCategory.ListShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.MappingNotFoundForKey, sme.ErrorCode);
lookupFailed = true;
}
Assert.IsTrue(lookupFailed);
Assert.AreEqual(0, countingCache.LookupMappingMissCount);
}
public void AddPointMappingAbortGSMDoAndGSMUndo()
{
bool shouldThrow = true;
IStoreOperationFactory sof = new StubStoreOperationFactory()
{
CallBase = true,
CreateAddMappingOperationShardMapManagerStoreOperationCodeIStoreShardMapIStoreMapping =
(_smm, _opcode, _ssm, _sm) =>
{
StubAddMappingOperation op = new StubAddMappingOperation(_smm, _opcode, _ssm, _sm);
op.CallBase = true;
op.DoGlobalPostLocalExecuteIStoreTransactionScope = (ts) =>
{
if (shouldThrow)
{
throw new StoreException("", ShardMapFaultHandlingTests.TransientSqlException);
}
else
{
// Call the base function, hack for this behavior is to save current operation, set current to null, restore current operation.
var original = op.DoGlobalPostLocalExecuteIStoreTransactionScope;
op.DoGlobalPostLocalExecuteIStoreTransactionScope = null;
try
{
return op.DoGlobalPostLocalExecute(ts);
}
finally
{
op.DoGlobalPostLocalExecuteIStoreTransactionScope = original;
}
}
};
op.UndoGlobalPostLocalExecuteIStoreTransactionScope = (ts) =>
{
if (shouldThrow)
{
throw new StoreException("", ShardMapFaultHandlingTests.TransientSqlException);
}
else
{
// Call the base function, hack for this behavior is to save current operation, set current to null, restore current operation.
var original = op.UndoGlobalPostLocalExecuteIStoreTransactionScope;
op.UndoGlobalPostLocalExecuteIStoreTransactionScope = null;
try
{
return op.UndoGlobalPostLocalExecute(ts);
}
finally
{
op.UndoGlobalPostLocalExecuteIStoreTransactionScope = original;
}
}
};
return op;
}
};
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
sof,
new CacheStore(),
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]);
ShardLocation sl2 = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[1]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
Shard s2 = lsm.CreateShard(sl2);
Assert.IsNotNull(s2);
bool storeOperationFailed = false;
try
{
PointMapping<int> p1 = lsm.CreatePointMapping(2, s);
Assert.IsNotNull(p1);
}
catch (ShardManagementException sme)
{
Assert.AreEqual(ShardManagementErrorCategory.ListShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.StorageOperationFailure, sme.ErrorCode);
storeOperationFailed = true;
}
Assert.IsTrue(storeOperationFailed);
// Obtain the pending operations.
var pendingOperations = ShardMapperTests.GetPendingStoreOperations();
Assert.AreEqual(pendingOperations.Count(), 1);
shouldThrow = false;
// Validation: Adding same mapping again even at different location should succeed.
PointMapping<int> p2 = lsm.CreatePointMapping(2, s2);
Assert.IsNotNull(p2);
pendingOperations = ShardMapperTests.GetPendingStoreOperations();
Assert.AreEqual(pendingOperations.Count(), 0);
}
public void AddPointMappingDuplicate()
{
CountingCacheStore countingCache = new CountingCacheStore(new CacheStore());
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
countingCache,
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
PointMapping<int> p1 = lsm.CreatePointMapping(1, s);
Assert.IsNotNull(p1);
bool addFailed = false;
try
{
// add same point mapping again.
PointMapping<int> pNew = lsm.CreatePointMapping(1, s);
}
catch (ShardManagementException sme)
{
Assert.AreEqual(ShardManagementErrorCategory.ListShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.MappingPointAlreadyMapped, sme.ErrorCode);
addFailed = true;
}
Assert.IsTrue(addFailed);
PointMapping<int> p2 = lsm.GetMappingForKey(1);
Assert.IsNotNull(p2);
Assert.AreEqual(0, countingCache.LookupMappingHitCount);
}
public void UpdatePointMappingLocationAbortLSM()
{
bool shouldThrow = false;
IStoreOperationFactory sof = new StubStoreOperationFactory()
{
CallBase = true,
CreateUpdateMappingOperationShardMapManagerStoreOperationCodeIStoreShardMapIStoreMappingIStoreMappingStringGuid =
(_smm, _opcode, _ssm, _sms, _smt, _p, _loid) =>
{
StubUpdateMappingOperation op = new StubUpdateMappingOperation(_smm, _opcode, _ssm, _sms, _smt, _p, _loid);
op.CallBase = true;
if (shouldThrow)
{
// Abort on target.
op.DoLocalTargetExecuteIStoreTransactionScope = (ts) =>
{
throw new StoreException("", ShardMapFaultHandlingTests.TransientSqlException);
};
}
return op;
}
};
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
sof,
new CacheStore(),
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
Shard s1 = lsm.CreateShard(new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]));
Assert.IsNotNull(s1);
Shard s2 = lsm.CreateShard(new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[1]));
Assert.IsNotNull(s2);
PointMapping<int> p1 = lsm.CreatePointMapping(1, s1);
PointMappingUpdate pu1 = new PointMappingUpdate();
// Take the mapping offline first before the shard location can be updated.
pu1.Status = MappingStatus.Offline;
PointMapping<int> pNew = lsm.UpdateMapping(p1, pu1);
PointMappingUpdate pu2 = new PointMappingUpdate();
pu2.Shard = s2;
shouldThrow = true;
bool storeOperationFailed = false;
try
{
pNew = lsm.UpdateMapping(pNew, pu2);
Assert.IsNotNull(pNew);
}
catch (ShardManagementException sme)
{
Assert.AreEqual(ShardManagementErrorCategory.ListShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.StorageOperationFailure, sme.ErrorCode);
storeOperationFailed = true;
}
Assert.IsTrue(storeOperationFailed);
// validation: validate location of the mapping.
PointMapping<int> pValidate = lsm.GetMappingForKey(1);
Assert.AreEqual(p1.Shard.Id, pValidate.Shard.Id);
}
public void KillConnectionOnOfflinePointMapping()
{
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
new CacheStore(),
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero),
RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
PointMapping<int> p1 = lsm.CreatePointMapping(1, s);
using (SqlConnection conn = lsm.OpenConnectionForKeyAsync(1, Globals.ShardUserConnectionString).Result)
{
Assert.AreEqual(ConnectionState.Open, conn.State);
PointMappingUpdate pu = new PointMappingUpdate();
pu.Status = MappingStatus.Offline;
PointMapping<int> pNew = lsm.UpdateMapping(p1, pu);
Assert.IsNotNull(pNew);
bool failed = false;
try
{
using (SqlCommand cmd = conn.CreateCommand())
{
cmd.CommandText = "select 1";
cmd.CommandType = CommandType.Text;
using (SqlDataReader rdr = cmd.ExecuteReader())
{
}
}
}
catch (SqlException)
{
failed = true;
}
Assert.AreEqual(true, failed);
Assert.AreEqual(ConnectionState.Closed, conn.State);
failed = false;
// Open 2nd connection.
try
{
using (SqlConnection conn2 = lsm.OpenConnectionForKeyAsync(1, Globals.ShardUserConnectionString).Result)
{
}
}
catch (AggregateException ex)
{
var sme = ex.InnerException as ShardManagementException;
if (sme != null)
{
failed = true;
Assert.AreEqual(ShardManagementErrorCode.MappingIsOffline, sme.ErrorCode);
}
}
Assert.AreEqual(true, failed);
// Mark the mapping online again so that it will be cleaned up
pu.Status = MappingStatus.Online;
PointMapping<int> pUpdated = lsm.UpdateMapping(pNew, pu);
Assert.IsNotNull(pUpdated);
failed = false;
// Open 3rd connection. This should succeed.
try
{
using (SqlConnection conn3 = lsm.OpenConnectionForKey(1, Globals.ShardUserConnectionString))
{
}
}
catch (ShardManagementException)
{
failed = true;
}
Assert.AreEqual(false, failed);
}
}
/// <summary>
/// OpenConnectionForKey for unavailable server using ListShardMap.
/// </summary>
/// <param name="openConnectionAsync">Whether the connection should be opened asynchronously</param>
private void UnavailableServerOpenConnectionForKeyListShardMapInternal(bool openConnectionAsync = false)
{
StubSqlStoreConnectionFactory scf = null;
bool shouldThrow = false;
scf = new StubSqlStoreConnectionFactory()
{
CallBase = true,
GetUserConnectionString = (cstr) =>
{
if (shouldThrow)
{
throw ShardMapFaultHandlingTests.TransientSqlException;
}
else
{
var original = scf.GetUserConnectionString;
scf.GetUserConnectionString = null;
try
{
return scf.GetUserConnection(cstr);
}
finally
{
scf.GetUserConnectionString = original;
}
}
}
};
int callCount = 0;
// Counting implementation of FindMappingByKey
IStoreOperationFactory sof = new StubStoreOperationFactory()
{
CallBase = true,
CreateFindMappingByKeyGlobalOperationShardMapManagerStringIStoreShardMapShardKeyCacheStoreMappingUpdatePolicyShardManagementErrorCategoryBooleanBoolean =
(_smm, _opname, _ssm, _sk, _pol, _ec, _cr, _if) =>
{
StubFindMappingByKeyGlobalOperation op = new StubFindMappingByKeyGlobalOperation(_smm, _opname, _ssm, _sk, _pol, _ec, _cr, _if);
op.CallBase = true;
op.DoGlobalExecuteIStoreTransactionScope = (ts) =>
{
callCount++;
// Call the base function, hack for this behavior is to save current operation, set current to null, restore current operation.
var original = op.DoGlobalExecuteIStoreTransactionScope;
op.DoGlobalExecuteIStoreTransactionScope = null;
try
{
return op.DoGlobalExecute(ts);
}
finally
{
op.DoGlobalExecuteIStoreTransactionScope = original;
}
};
op.DoGlobalExecuteAsyncIStoreTransactionScope = (ts) => Task.FromResult<IStoreResults>(op.DoGlobalExecuteIStoreTransactionScope(ts));
return op;
}
};
StubCacheStore scs = null;
ICacheStoreMapping currentMapping = null;
StubICacheStoreMapping sics = new StubICacheStoreMapping
{
MappingGet = () => currentMapping.Mapping,
CreationTimeGet = () => currentMapping.CreationTime,
TimeToLiveMillisecondsGet = () => currentMapping.TimeToLiveMilliseconds,
ResetTimeToLive = () => currentMapping.ResetTimeToLive(),
HasTimeToLiveExpired = () => currentMapping.HasTimeToLiveExpired()
};
scs = new StubCacheStore()
{
CallBase = true,
LookupMappingByKeyIStoreShardMapShardKey = (_ssm, _sk) =>
{
var original = scs.LookupMappingByKeyIStoreShardMapShardKey;
scs.LookupMappingByKeyIStoreShardMapShardKey = null;
try
{
currentMapping = scs.LookupMappingByKey(_ssm, _sk);
return sics;
}
finally
{
scs.LookupMappingByKeyIStoreShardMapShardKey = original;
}
}
};
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
scf,
sof,
scs,
ShardMapManagerLoadPolicy.Lazy,
RetryPolicy.DefaultRetryPolicy, RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
ShardLocation sl = new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]);
Shard s = lsm.CreateShard(sl);
Assert.IsNotNull(s);
PointMapping<int> p1 = lsm.CreatePointMapping(2, s);
Assert.IsNotNull(p1);
// Mapping is there, now let's try to abort the OpenConnectionForKey
shouldThrow = true;
bool failed = false;
for (int i = 1; i <= 10; i++)
{
failed = false;
try
{
if (openConnectionAsync)
{
lsm.OpenConnectionForKeyAsync(2, Globals.ShardUserConnectionString).Wait();
}
else
{
lsm.OpenConnectionForKey(2, Globals.ShardUserConnectionString);
}
}
catch (Exception ex)
{
if (ex is AggregateException)
{
ex = ex.InnerException as SqlException;
}
if (ex is SqlException)
{
failed = true;
}
}
Assert.IsTrue(failed);
}
Assert.AreEqual(1, callCount);
long currentTtl = ((ICacheStoreMapping)sics).TimeToLiveMilliseconds;
Assert.IsTrue(currentTtl > 0);
// Let's fake the TTL to be 0, to force another call to store.
sics.TimeToLiveMillisecondsGet = () => 0;
sics.HasTimeToLiveExpired = () => true;
failed = false;
try
{
if (openConnectionAsync)
{
lsm.OpenConnectionForKeyAsync(2, Globals.ShardUserConnectionString).Wait();
}
else
{
lsm.OpenConnectionForKey(2, Globals.ShardUserConnectionString);
}
}
catch (Exception ex)
{
if (ex is AggregateException)
{
ex = ex.InnerException as SqlException;
}
if (ex is SqlException)
{
failed = true;
}
}
Assert.IsTrue(failed);
Assert.AreEqual(2, callCount);
sics.TimeToLiveMillisecondsGet = () => currentMapping.TimeToLiveMilliseconds;
sics.HasTimeToLiveExpired = () => currentMapping.HasTimeToLiveExpired();
failed = false;
try
{
if (openConnectionAsync)
{
lsm.OpenConnectionForKeyAsync(2, Globals.ShardUserConnectionString).Wait();
}
else
{
lsm.OpenConnectionForKey(2, Globals.ShardUserConnectionString);
}
}
catch (Exception ex)
{
if (ex is AggregateException)
{
ex = ex.InnerException as SqlException;
}
if (ex is SqlException)
{
failed = true;
}
}
Assert.IsTrue(failed);
Assert.IsTrue(((ICacheStoreMapping)sics).TimeToLiveMilliseconds > currentTtl);
shouldThrow = false;
failed = false;
try
{
if (openConnectionAsync)
{
lsm.OpenConnectionForKeyAsync(2, Globals.ShardUserConnectionString).Wait();
}
else
{
lsm.OpenConnectionForKey(2, Globals.ShardUserConnectionString);
}
}
catch (Exception ex)
{
if (ex is AggregateException)
{
ex = ex.InnerException as SqlException;
}
if (ex is SqlException)
{
failed = true;
}
}
Assert.IsFalse(failed);
Assert.AreEqual(0, ((ICacheStoreMapping)sics).TimeToLiveMilliseconds);
}
public void UpdatePointMappingLocation()
{
CountingCacheStore countingCache = new CountingCacheStore(new CacheStore());
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
countingCache,
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
Shard s1 = lsm.CreateShard(new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]));
Assert.IsNotNull(s1);
Shard s2 = lsm.CreateShard(new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[1]));
Assert.IsNotNull(s2);
PointMapping<int> p1 = lsm.CreatePointMapping(1, s1);
PointMappingUpdate pu = new PointMappingUpdate();
pu.Status = MappingStatus.Offline; // Shard location in a mapping cannot be changed unless it is offline.
PointMapping<int> pOffline = lsm.UpdateMapping(p1, pu);
Assert.IsNotNull(pOffline);
Assert.AreEqual(pu.Status, pOffline.Status);
pu.Shard = s2;
PointMapping<int> pNew = lsm.UpdateMapping(pOffline, pu);
Assert.IsNotNull(pNew);
PointMapping<int> p2 = lsm.GetMappingForKey(1);
Assert.IsNotNull(p2);
Assert.AreEqual(0, countingCache.LookupMappingHitCount);
Assert.AreEqual(s2.Id, p2.Shard.Id);
}
public void UpdatePointMappingIdempotency()
{
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StoreOperationFactory(),
new CacheStore(),
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapperTests.s_listShardMapName);
Assert.IsNotNull(lsm);
Shard s1 = lsm.CreateShard(new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[0]));
Assert.IsNotNull(s1);
Shard s2 = lsm.CreateShard(new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapperTests.s_shardedDBs[1]));
Assert.IsNotNull(s2);
PointMapping<int> p1 = lsm.CreatePointMapping(1, s1);
// Online -> Offline - No Location Change
PointMappingUpdate pu = new PointMappingUpdate
{
Status = MappingStatus.Offline
};
PointMapping<int> presult = lsm.UpdateMapping(p1, pu);
Assert.IsNotNull(presult);
Assert.IsTrue(presult.Status == MappingStatus.Offline);
// Offline -> Offline - No Location Change
pu = new PointMappingUpdate
{
Status = MappingStatus.Offline
};
presult = lsm.UpdateMapping(presult, pu);
Assert.IsNotNull(presult);
Assert.IsTrue(presult.Status == MappingStatus.Offline);
// Offline -> Offline - Location Change
pu = new PointMappingUpdate
{
Shard = s2
};
presult = lsm.UpdateMapping(presult, pu);
Assert.IsNotNull(presult);
Assert.IsTrue(presult.Status == MappingStatus.Offline);
Assert.AreEqual(s2.Location, presult.Shard.Location);
// Offline -> Online - No Location Change
pu = new PointMappingUpdate
{
Status = MappingStatus.Online
};
presult = lsm.UpdateMapping(presult, pu);
Assert.IsNotNull(presult);
Assert.IsTrue(presult.Status == MappingStatus.Online);
// Online -> Offline - Location Change
pu = new PointMappingUpdate
{
Status = MappingStatus.Offline,
Shard = s1
};
presult = lsm.UpdateMapping(presult, pu);
Assert.IsNotNull(presult);
Assert.IsTrue(presult.Status == MappingStatus.Offline);
Assert.AreEqual(s1.Location, presult.Shard.Location);
// Offline -> Online - Location Change
pu = new PointMappingUpdate
{
Status = MappingStatus.Online,
Shard = s2
};
presult = lsm.UpdateMapping(presult, pu);
Assert.IsNotNull(presult);
Assert.IsTrue(presult.Status == MappingStatus.Online);
Assert.AreEqual(s2.Location, presult.Shard.Location);
// Online -> Online - No Location Change
pu = new PointMappingUpdate
{
Status = MappingStatus.Online
};
presult = lsm.UpdateMapping(presult, pu);
Assert.IsNotNull(presult);
Assert.IsTrue(presult.Status == MappingStatus.Online);
// Online -> Online - Location Change
pu = new PointMappingUpdate
{
Shard = s1
};
bool failed = false;
try
{
presult = lsm.UpdateMapping(presult, pu);
}
catch (ShardManagementException sme)
{
failed = true;
Assert.AreEqual(ShardManagementErrorCategory.ListShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.MappingIsNotOffline, sme.ErrorCode);
}
Assert.IsTrue(failed);
}
public void AddPointMappingFailGSMAfterSuccessLSMSingleRetry()
{
ShardMapManager smm = new ShardMapManager(
new SqlShardMapManagerCredentials(Globals.ShardMapManagerConnectionString),
new SqlStoreConnectionFactory(),
new StubStoreOperationFactory()
{
CallBase = true,
CreateAddMappingOperationShardMapManagerStoreOperationCodeIStoreShardMapIStoreMapping =
(_smm, _opcode, _ssm, _sm) => new NTimeFailingAddMappingOperation(1, _smm, _opcode, _ssm, _sm)
},
new CacheStore(),
ShardMapManagerLoadPolicy.Lazy,
new RetryPolicy(1, TimeSpan.Zero, TimeSpan.Zero, TimeSpan.Zero), RetryBehavior.DefaultRetryBehavior);
ListShardMap<int> lsm = smm.GetListShardMap<int>(ShardMapFaultHandlingTests.s_listShardMapName);
Assert.IsNotNull(lsm);
Shard s = lsm.CreateShard(new ShardLocation(Globals.ShardMapManagerTestsDatasourceName, ShardMapFaultHandlingTests.s_shardedDBs[0]));
Assert.IsNotNull(s);
bool failed = false;
try
{
PointMapping<int> p1 = lsm.CreatePointMapping(2, s);
}
catch (ShardManagementException)
{
failed = true;
}
Assert.IsFalse(failed);
}
public void ConcurrencyScenarioListShardMap()
{
bool operationFailed; // variable to track status of negative test scenarios
// Create 2 SMM objects representing management and client
ShardMapManager smmMgmt = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
ShardMapManager smmClient = ShardMapManagerFactory.GetSqlShardMapManager(
Globals.ShardMapManagerConnectionString,
ShardMapManagerLoadPolicy.Lazy);
#region CreateShardMap
// Add a shard map from management SMM.
ShardMap smMgmt = smmMgmt.CreateListShardMap <int>(ShardMapManagerConcurrencyTests.s_shardMapName);
Assert.AreEqual(ShardMapManagerConcurrencyTests.s_shardMapName, smMgmt.Name);
// Lookup shard map from client SMM.
ShardMap smClient = smmClient.GetShardMap(ShardMapManagerConcurrencyTests.s_shardMapName);
Assert.IsNotNull(smClient);
#endregion CreateShardMap
#region ConvertToListShardMap
ListShardMap <int> lsmMgmt = smmMgmt.GetListShardMap <int>(ShardMapManagerConcurrencyTests.s_shardMapName);
Assert.IsNotNull(lsmMgmt);
// look up shard map again, it will
ListShardMap <int> lsmClient = smmClient.GetListShardMap <int>(ShardMapManagerConcurrencyTests.s_shardMapName);
Assert.IsNotNull(lsmClient);
#endregion ConvertToListShardMap
#region DeleteShardMap
// verify that smClient is accessible
IEnumerable <Shard> shardClient = lsmClient.GetShards();
smmMgmt.DeleteShardMap(lsmMgmt);
operationFailed = false;
try
{
// smClient does not exist, below call will fail.
IEnumerable <Shard> sCNew = lsmClient.GetShards();
}
catch (ShardManagementException sme)
{
Assert.AreEqual(ShardManagementErrorCategory.ShardMap, sme.ErrorCategory);
Assert.AreEqual(ShardManagementErrorCode.ShardMapDoesNotExist, sme.ErrorCode);
operationFailed = true;
}
Assert.IsTrue(operationFailed);
#endregion DeleteShardMap
}
