/// <summary>
/// Create a table in this database.
/// </summary>
/// <param name="quorum">The first shard of the table is placed inside the <see cref="Scalien.Quorum"/>.</param>
/// <param name="name">The name of the table.</param>
/// <returns>The <see cref="Scalien.Table"/> object corresponding to the created table.</returns>
/// <exception cref="SDBPException"/>
/// <seealso cref="CreateTable(string)"/>
public virtual Table CreateTable(string name, Quorum quorum)
{
int status = scaliendb_client.SDBP_CreateTable(client.cptr, databaseID, quorum.QuorumID, name);
client.CheckResultStatus(status);
return(GetTable(name));
}
/// <summary>
/// Start transaction inside the quorum on majorKey
/// </summary>
/// <seealso cref="CommitTransaction()"/>
/// <seealso cref="RollbackTransaction()"/>
public void StartTransaction(Quorum quorum, byte[] majorKey)
{
int status;
unsafe
{
fixed(byte *pKey = majorKey)
{
IntPtr ipKey = new IntPtr(pKey);
status = scaliendb_client.SDBP_StartTransactionCStr(cptr, quorum.QuorumID, ipKey, majorKey.Length);
}
}
result = new Result(scaliendb_client.SDBP_GetResult(cptr));
if (status < 0)
{
if (status == Status.SDBP_FAILED)
{
TransactionException exception = new LockTimeoutException(status);
UpdateException(exception, result);
throw exception;
}
CheckStatus(result, status);
}
result.Close();
}
public static bool RandomShardServerHTTPAction(Client client, Quorum quorum, string action)
{
var configState = Utils.GetFullConfigState(client);
var shardServers = configState.shardServers;
var configQuorum = configState.quorums.First(cq => cq.quorumID == (long)quorum.QuorumID);
var random = new Random();
// select shard server
var victimNodeID = configQuorum.activeNodes[random.Next(configQuorum.activeNodes.Count)];
foreach (var shardServer in shardServers)
{
if (shardServer.nodeID == victimNodeID)
{
var httpURI = ConfigStateHelpers.GetShardServerURL(shardServer);
var response = Utils.HTTP.GET(Utils.HTTP.BuildUri(httpURI, action));
if (response == null)
{
return(false);
}
return(true);
}
}
return(false);
}
/// <summary>
/// Create a table in this database, with the first shard placed in the first available quorum.
/// </summary>
/// <param name="name">The name of the table.</param>
/// <returns>The <see cref="Scalien.Table"/> object corresponding to the created table.</returns>
/// <exception cref="SDBPException"/>
/// <seealso cref="Scalien.Table"/>
/// <seealso cref="CreateTable(string, Quorum)"/>
public virtual Table CreateTable(string name)
{
List <Quorum> quorums = client.GetQuorums();
if (quorums.Count == 0)
{
throw new SDBPException(Status.SDBP_BADSCHEMA, "No quorums found");
}
Quorum quorum = quorums[0];
return(CreateTable(name, quorum));
}
public static bool PrimaryShardServerHTTPAction(Client client, Quorum quorum, string action)
{
var configState = Utils.GetFullConfigState(client);
var shardServers = configState.shardServers;
var configQuorum = configState.quorums.First(cq => cq.quorumID == (long)quorum.QuorumID);
if (configQuorum.hasPrimary == false)
return false;
var shardServer = configState.shardServers.First(s => s.nodeID == configQuorum.primaryID);
var httpURI = ConfigStateHelpers.GetShardServerURL(shardServer);
var response = Utils.HTTP.GET(Utils.HTTP.BuildUri(httpURI, action));
if (response == null)
return false;
return true;
}
public static bool RandomShardServerHTTPAction(Client client, Quorum quorum, string action)
{
var configState = Utils.GetFullConfigState(client);
var shardServers = configState.shardServers;
var configQuorum = configState.quorums.First(cq => cq.quorumID == (long)quorum.QuorumID);
var random = new Random();
// select shard server
var victimNodeID = configQuorum.activeNodes[random.Next(configQuorum.activeNodes.Count)];
foreach (var shardServer in shardServers)
{
if (shardServer.nodeID == victimNodeID)
{
var httpURI = ConfigStateHelpers.GetShardServerURL(shardServer);
var response = Utils.HTTP.GET(Utils.HTTP.BuildUri(httpURI, action));
if (response == null)
return false;
return true;
}
}
return false;
}
public static bool PrimaryShardServerHTTPAction(Client client, Quorum quorum, string action)
{
var configState = Utils.GetFullConfigState(client);
var shardServers = configState.shardServers;
var configQuorum = configState.quorums.First(cq => cq.quorumID == (long)quorum.QuorumID);
if (configQuorum.hasPrimary == false)
{
return(false);
}
var shardServer = configState.shardServers.First(s => s.nodeID == configQuorum.primaryID);
var httpURI = ConfigStateHelpers.GetShardServerURL(shardServer);
var response = Utils.HTTP.GET(Utils.HTTP.BuildUri(httpURI, action));
if (response == null)
{
return(false);
}
return(true);
}
public static void ThreadFunc()
{
//Client.SetTrace(true);
//Client.SetLogFile("d:/out.txt");
//string[] controllers = { "127.0.0.1:7080" };
string[] controllers = { "192.168.137.110:7080", "192.168.137.111:7080", "192.168.137.112:7080" };
Client client = new Client(controllers);
Quorum quorum = client.GetQuorum("test");
Database db = client.GetDatabase("test");
Table test = db.GetTable("test");
Table indices = db.GetTable("indices");
Sequence IDs = indices.GetSequence("IDs");
//System.Console.WriteLine("Thread.CurrentThread.ManagedThreadId = {0}", Thread.CurrentThread.ManagedThreadId);
System.Random random = new System.Random(Thread.CurrentThread.ManagedThreadId);
var value = "";
while (value.Length < 10 * 1000)
{
value += "" + random.Next();
}
//using (client.Transaction(quorum, "foo" + random.Next(100)))
//{
// System.Console.WriteLine("Transaction started.");
// for (var j = 0; j < 10*1000; j++)
// table.Set("" + j, value);
// client.CommitTransaction();
// System.Console.WriteLine("Transaction finished.");
//}
//return;
ulong ID;
//for (var i = 0; i < 1000; i++)
while (true)
{
if (random.Next(3) == 0)
{
try
{
System.Console.WriteLine("Batch started.");
for (var j = 0; j < 10; j++)
{
if (random.Next(2) == 0)
{
test.Set("" + random.Next(1000 * 1000), value);
}
else
{
test.Delete("" + random.Next(1000 * 1000));
}
}
//for (var j = 0; j < 10 * 1000; j++)
// ID = IDs.GetNext;
client.Submit();
System.Console.WriteLine("Batch finished.");
}
catch (SDBPException)
{
System.Console.WriteLine("Batch failed.");
}
continue;
}
//if (random.Next(2) == 0)
//{
// try
// {
// System.Console.WriteLine("List started.");
// var count = 0;
// foreach (KeyValuePair<string, string> kv in test.GetKeyValueIterator(new StringRangeParams().Prefix("1")))
// {
// count++;
// //System.Console.WriteLine(kv.Key + " => " + kv.Value);
// if (count == 10)
// break;
// }
// System.Console.WriteLine("List finished.");
// }
// catch (SDBPException)
// {
// System.Console.WriteLine("List failed.");
// // why does this happen
// }
// continue;
//}
while (true)
{
try
{
using (client.Transaction(quorum, "foo" + random.Next(100)))
{
System.Console.WriteLine("Transaction started.");
for (var j = 0; j < 10; j++)
{
if (random.Next(2) == 0)
{
test.Set("" + random.Next(1000 * 1000), value);
}
else
{
test.Delete("" + random.Next(1000 * 1000));
}
}
//for (var j = 0; j < 1000; j++)
// ID = IDs.GetNext;
if (random.Next(2) == 0)
{
client.CommitTransaction();
}
else
{
client.RollbackTransaction();
}
System.Console.WriteLine("Transaction finished.");
break;
}
}
catch (SDBPException)
{
//System.Console.WriteLine("Exception.");
System.Threading.Thread.Sleep(1);
}
}
}
}
/// <summary>
/// Start a real, server-side transaction.
/// </summary>
/// <remarks>
/// Return a <see cref="Scalien.Committer"/> object that will automatically call <see cref="Commit()"/> when it goes out of scope.
/// </remarks>
/// <returns>A <see cref="Scalien.Committer"/> object that will automatically call <see cref="Commit()"/> when it goes out of scope.</returns>
/// <seealso cref="Submit()"/>
/// <seealso cref="Cancel()"/>
public Rollbacker Transaction(Quorum quorum, byte[] majorKey)
{
return(new Rollbacker(this, quorum, majorKey));
}
/// <summary>
/// Start a real, server-side transaction.
/// </summary>
/// <remarks>
/// Return a <see cref="Scalien.Rollbacker"/> object that will automatically call <see cref="RollbackTransaction()"/> when it goes out of scope.
/// </remarks>
/// <returns>A <see cref="Scalien.Rollbacker"/> object that will automatically call <see cref="RollbackTransaction()"/> when it goes out of scope.</returns>
/// <seealso cref="StartTransaction()"/>
/// <seealso cref="CommitTransaction()"/>
/// <seealso cref="RollbackTransaction()"/>
public Rollbacker Transaction(Quorum quorum, string majorKey)
{
return(Transaction(quorum, StringToByteArray(majorKey)));
}
/// <summary>
/// Start transaction inside the quorum on majorKey
/// </summary>
/// <seealso cref="CommitTransaction()"/>
/// <seealso cref="RollbackTransaction()"/>
public void StartTransaction(Quorum quorum, string majorKey)
{
StartTransaction(quorum, StringToByteArray(majorKey));
}
internal Rollbacker(Client client, Quorum quorum, byte[] majorKey)
{
this.client = client;
client.StartTransaction(quorum, majorKey);
}
internal Rollbacker(Client client, Quorum quorum, byte[] majorKey)
{
this.client = client;
client.StartTransaction(quorum, majorKey);
}
/// <summary>
/// Create a table in this database.
/// </summary>
/// <param name="quorum">The first shard of the table is placed inside the <see cref="Scalien.Quorum"/>.</param>
/// <param name="name">The name of the table.</param>
/// <returns>The <see cref="Scalien.Table"/> object corresponding to the created table.</returns>
/// <exception cref="SDBPException"/>
/// <seealso cref="CreateTable(string)"/>
public virtual Table CreateTable(string name, Quorum quorum)
{
int status = scaliendb_client.SDBP_CreateTable(client.cptr, databaseID, quorum.QuorumID, name);
client.CheckResultStatus(status);
return GetTable(name);
}
