private ReplicatedTableQuorumWriteResult UpdateConfigurationInternal(ReplicatedTableConfiguration configuration, bool useConditionalUpdate)
{
SanitizeConfiguration(configuration);
// - Upload configuration ...
Func <ReplicatedTableConfiguration, ReplicatedTableConfiguration, bool> comparer = (a, b) => a.Id == b.Id;
if (!useConditionalUpdate)
{
comparer = (a, b) => true;
}
ReplicatedTableQuorumWriteResult
result = CloudBlobHelpers.TryWriteBlobQuorum(
this.configManager.GetBlobs(),
configuration,
ReplicatedTableConfiguration.FromJson,
comparer,
ReplicatedTableConfiguration.GenerateNewConfigId);
if (result.Code == ReplicatedTableQuorumWriteCode.Success)
{
this.configManager.Invalidate();
}
else
{
ReplicatedTableLogger.LogError("Failed to update configuration, \n{0}", result.ToString());
}
return(result);
}
public void TurnReplicaOff(string storageAccountName)
{
if (string.IsNullOrEmpty(storageAccountName))
{
throw new ArgumentNullException("storageAccountName");
}
ReplicatedTableConfiguration configuration = null;
// - Retrieve configuration ...
ReplicatedTableQuorumReadResult readResult = RetrieveConfiguration(out configuration);
if (readResult.Code != ReplicatedTableQuorumReadCode.Success)
{
var msg = string.Format("TurnReplicaOff={0}: failed to read configuration, \n{1}", storageAccountName, readResult.ToString());
ReplicatedTableLogger.LogError(msg);
throw new Exception(msg);
}
// - Update all views ...
configuration.TurnReplicaOff(storageAccountName);
// - Write back configuration ...
ReplicatedTableQuorumWriteResult writeResult = UpdateConfigurationInternal(configuration, true);
if (writeResult.Code != ReplicatedTableQuorumWriteCode.Success)
{
var msg = string.Format("TurnReplicaOff={0}: failed to update configuration, \n{1}", storageAccountName, writeResult.ToString());
ReplicatedTableLogger.LogError(msg);
throw new Exception(msg);
}
}
public void TurnReplicaOff(string storageAccountName)
{
if (string.IsNullOrEmpty(storageAccountName))
{
throw new ArgumentNullException("storageAccountName");
}
ReplicatedTableConfiguration configuration = null;
// - Retrieve configuration ...
ReplicatedTableQuorumReadResult readResult = RetrieveConfiguration(out configuration);
if (readResult.Code != ReplicatedTableQuorumReadCode.Success)
{
var msg = string.Format("TurnReplicaOff={0}: failed to read configuration, \n{1}", storageAccountName, readResult.ToString());
ReplicatedTableLogger.LogError(msg);
throw new Exception(msg);
}
// - Parse/Update all views ...
foreach (var viewConf in configuration.viewMap.Values)
{
var foundReplicas = viewConf.GetCurrentReplicaChain()
.FindAll(r => r.StorageAccountName == storageAccountName);
if (!foundReplicas.Any())
{
continue;
}
foreach (var replica in foundReplicas)
{
replica.Status = ReplicaStatus.None;
replica.ViewWhenTurnedOff = viewConf.ViewId;
}
// Update view id
viewConf.ViewId++;
}
// - Write back configuration ...
ReplicatedTableQuorumWriteResult writeResult = UpdateConfigurationInternal(configuration, true);
if (writeResult.Code != ReplicatedTableQuorumWriteCode.Success)
{
var msg = string.Format("TurnReplicaOff={0}: failed to update configuration, \n{1}", storageAccountName, writeResult.ToString());
ReplicatedTableLogger.LogError(msg);
throw new Exception(msg);
}
}
public ReplicatedTableQuorumWriteResult UploadConfigurationToBlobs(List <int> blobIndexes, ReplicatedTableConfiguration configuration)
{
if (blobIndexes == null || !blobIndexes.Any())
{
throw new ArgumentNullException("blobIndexes");
}
if (configuration == null)
{
throw new ArgumentNullException("configuration");
}
List <CloudBlockBlob> blobs = new List <CloudBlockBlob>();
foreach (var blobIndex in blobIndexes)
{
if (blobIndex < this.configManager.GetBlobs().Count)
{
blobs.Add(this.configManager.GetBlobs()[blobIndex]);
continue;
}
var msg = string.Format("blobIndex={0} >= BlobCount={1}", blobIndex, this.configManager.GetBlobs().Count);
ReplicatedTableLogger.LogError(msg);
throw new Exception(msg);
}
SanitizeConfiguration(configuration);
// - Upload to blobs ...
ReplicatedTableQuorumWriteResult result = CloudBlobHelpers.TryUploadBlobs(blobs, configuration);
this.configManager.Invalidate();
if (result.Code != ReplicatedTableQuorumWriteCode.Success)
{
ReplicatedTableLogger.LogError("Failed to upload configuration to blobs, \n{0}", result.ToString());
}
return(result);
}
private void SaveConfigAndRefreshItsIdAndValidateIsLoaded(ReplicatedTableConfiguration configuration, string iteration, bool validateConfigIsLoaded = true)
{
string msg = "";
ReplicatedTableQuorumWriteResult writeResult = UpdateConfigurationInternal(configuration, true);
if (writeResult.Code != ReplicatedTableQuorumWriteCode.Success)
{
msg = string.Format("{0} : Failed to update configuration, \n{1}", iteration, writeResult.ToString());
ReplicatedTableLogger.LogError(msg);
throw new Exception(msg);
}
// Update config with new Id
configuration.Id = new Guid(writeResult.Message);
// do we need to validate if the config is loaded by the config manager ?
if (!validateConfigIsLoaded)
{
return;
}
// - Confirm the new config is the current loaded into the RTable config manager
if (configuration.Id == this.configManager.GetCurrentRunningConfigId())
{
return;
}
msg = string.Format("{0} : ConfigId({1}) != currently running configurationId({2})",
iteration,
configuration.Id,
this.configManager.GetCurrentRunningConfigId());
ReplicatedTableLogger.LogError(msg);
throw new Exception(msg);
}