public static async Task <string> Execute(ConnectionManager connectionManager, string partitionId)
{
string masterId = connectionManager.GetPartitionMasterId(partitionId);
IImmutableSet <Server> replicaSet = connectionManager.GetPartitionAliveReplicas(partitionId);
foreach (Server replica in replicaSet)
{
try
{
while (true)
{
GStoreGetMasterResponse gStoreGetMasterResponse = await replica.Stub.GetMasterAsync(new GStoreGetMasterRequest
{
PartitionId = partitionId
});
string newMasterId = gStoreGetMasterResponse.MasterId;
if (newMasterId != masterId)
{
masterId = newMasterId;
break;
}
await Task.Delay(RETRY_DELAY);
}
break;
}
catch (Grpc.Core.RpcException exception) when(exception.StatusCode == Grpc.Core.StatusCode.Internal)
{
// should handle this error
Console.WriteLine(exception.Message);
}
}
return(masterId);
}
public GStoreGetMasterResponse ExecuteGetMaster(GStoreGetMasterRequest request)
{
Console.WriteLine($"GetMaster request -> PartitionId: {request.PartitionId}");
string masterId;
try
{
masterId = gStore.GetMaster(request.PartitionId);
}
catch (Exception)
{
masterId = "-1"; //fixme
}
GStoreGetMasterResponse gStoreGetMasterResponse = new GStoreGetMasterResponse
{
MasterId = masterId
};
return(gStoreGetMasterResponse);
}