/// <summary>
/// Get item using Amazon Dynamo Accelerator (DAX), to use this function, you have to install the lambda at the
/// same VPC as DAX, then you could access to the Lambda using EC2 instance
/// </summary>
/// <param name="contractId"></param>
/// <returns></returns>
public Dictionary <string, AttributeValue> GetDAX(string contractId)
{
DaxClientConfig config = new DaxClientConfig("assetcluster.ofc1zu.clustercfg.dax.usw2.cache.amazonaws.com", 8111);
ClusterDaxClient client = new ClusterDaxClient(config);
GetItemRequest request = new GetItemRequest()
{
TableName = AssetTableName,
Key = new Dictionary <string, AttributeValue>()
{
{
"ContractId", new AttributeValue()
{
S = contractId
}
}
}
};
var result = client.GetItemAsync(request);
result.Wait();
if (result.IsCompletedSuccessfully)
{
return(result.Result.Item);
}
throw new Exception("Error reading asset table", result.Exception);
}
public static async Task Main(string[] args)
{
string endpointUri = args[0];
Console.WriteLine($"Using DAX client - endpointUri={endpointUri}");
var clientConfig = new DaxClientConfig(endpointUri)
{
AwsCredentials = FallbackCredentialsFactory.GetCredentials()
};
var client = new ClusterDaxClient(clientConfig);
var tableName = "TryDaxTable";
var pk = 1;
var sk = 10;
var iterations = 5;
var startTime = System.DateTime.Now;
for (var i = 0; i < iterations; i++)
{
for (var ipk = 1; ipk <= pk; ipk++)
{
for (var isk = 1; isk <= sk; isk++)
{
var request = new GetItemRequest()
{
TableName = tableName,
Key = new Dictionary <string, AttributeValue>()
{
{ "pk", new AttributeValue {
N = ipk.ToString()
} },
{ "sk", new AttributeValue {
N = isk.ToString()
} }
}
};
var response = await client.GetItemAsync(request);
Console.WriteLine($"GetItem succeeded for pk: {ipk},sk: {isk}");
}
}
}
var endTime = DateTime.Now;
TimeSpan timeSpan = endTime - startTime;
Console.WriteLine($"Total time: {timeSpan.TotalMilliseconds} milliseconds");
Console.WriteLine("Hit <enter> to continue...");
Console.ReadLine();
}
static void Main(string[] args)
{
String hostName = args[0].Split(':')[0];
int port = Int32.Parse(args[0].Split(':')[1]);
Console.WriteLine("Using DAX client - hostname=" + hostName + ", port=" + port);
var clientConfig = new DaxClientConfig(hostName, port)
{
AwsCredentials = FallbackCredentialsFactory.GetCredentials()
};
var client = new ClusterDaxClient(clientConfig);
var tableName = "TryDaxTable";
var pk = 1;
var sk = 10;
var iterations = 5;
var startTime = DateTime.Now;
for (var i = 0; i < iterations; i++)
{
for (var ipk = 1; ipk <= pk; ipk++)
{
for (var isk = 1; isk <= sk; isk++)
{
var request = new GetItemRequest()
{
TableName = tableName,
Key = new Dictionary <string, AttributeValue>()
{
{ "pk", new AttributeValue {
N = ipk.ToString()
} },
{ "sk", new AttributeValue {
N = isk.ToString()
} }
}
};
var response = client.GetItemAsync(request).Result;
Console.WriteLine("GetItem succeeded for pk: " + ipk + ", sk: " + isk);
}
}
}
var endTime = DateTime.Now;
TimeSpan timeSpan = endTime - startTime;
Console.WriteLine("Total time: " + (int)timeSpan.TotalMilliseconds + " milliseconds");
Console.WriteLine("Hit <enter> to continue...");
Console.ReadLine();
}