public SentinelAdapter(RedisClient topOwner, ConnectionStringBuilder sentinelConnectionString, string[] sentinels, bool rw_splitting)
{
UseType = UseType.Sentinel;
TopOwner = topOwner;
_connectionString = sentinelConnectionString;
_sentinels = new LinkedList <ConnectionStringBuilder>(sentinels?.Select(a =>
{
var csb = ConnectionStringBuilder.Parse(a);
csb.Host = csb.Host.ToLower();
return(csb);
}).GroupBy(a => a.Host, a => a).Select(a => a.First()) ?? new ConnectionStringBuilder[0]);
_rw_splitting = rw_splitting;
_is_single = !_rw_splitting && sentinelConnectionString.MaxPoolSize == 1;
if (_sentinels.Any() == false)
{
throw new ArgumentNullException(nameof(sentinels));
}
_ib = new IdleBus <RedisClientPool>(TimeSpan.FromMinutes(10));
ResetSentinel();
}
public static ConnectionStringBuilder Parse(string connectionString)
{
var ret = new ConnectionStringBuilder();
if (string.IsNullOrEmpty(connectionString))
{
return(ret);
}
//支持密码中带有逗号，将原有 split(',') 改成以下处理方式
var vs = Regex.Split(connectionString, @"\,([\w \t\r\n]+)=", RegexOptions.Multiline);
ret.Host = vs[0].Trim();
for (var a = 1; a < vs.Length; a += 2)
{
var kv = new[] { Regex.Replace(vs[a].ToLower().Trim(), @"[ \t\r\n]", ""), vs[a + 1] };
switch (kv[0])
{
case "ssl": if (kv.Length > 1 && kv[1].ToLower().Trim() == "true")
{
ret.Ssl = true;
}
break;
case "protocol": if (kv.Length > 1 && kv[1].ToUpper().Trim() == "RESP3")
{
ret.Protocol = RedisProtocol.RESP3;
}
break;
case "userid":
case "user": if (kv.Length > 1)
{
ret.User = kv[1].Trim();
}
break;
case "password": if (kv.Length > 1)
{
ret.Password = kv[1];
}
break;
case "database":
case "defaultdatabase": if (kv.Length > 1 && int.TryParse(kv[1].Trim(), out var database) && database > 0)
{
ret.Database = database;
}
break;
case "prefix": if (kv.Length > 1)
{
ret.Prefix = kv[1].Trim();
}
break;
case "name":
case "clientname": if (kv.Length > 1)
{
ret.ClientName = kv[1].Trim();
}
break;
case "encoding": if (kv.Length > 1)
{
ret.Encoding = Encoding.GetEncoding(kv[1].Trim());
}
break;
case "idletimeout": if (kv.Length > 1 && long.TryParse(kv[1].Trim(), out var idleTimeout) && idleTimeout > 0)
{
ret.IdleTimeout = TimeSpan.FromMilliseconds(idleTimeout);
}
break;
case "connecttimeout": if (kv.Length > 1 && long.TryParse(kv[1].Trim(), out var connectTimeout) && connectTimeout > 0)
{
ret.ConnectTimeout = TimeSpan.FromMilliseconds(connectTimeout);
}
break;
case "receivetimeout": if (kv.Length > 1 && long.TryParse(kv[1].Trim(), out var receiveTimeout) && receiveTimeout > 0)
{
ret.ReceiveTimeout = TimeSpan.FromMilliseconds(receiveTimeout);
}
break;
case "sendtimeout": if (kv.Length > 1 && long.TryParse(kv[1].Trim(), out var sendTimeout) && sendTimeout > 0)
{
ret.SendTimeout = TimeSpan.FromMilliseconds(sendTimeout);
}
break;
case "poolsize":
case "maxpoolsize": if (kv.Length > 1 && int.TryParse(kv[1].Trim(), out var maxPoolSize) && maxPoolSize > 0)
{
ret.MaxPoolSize = maxPoolSize;
}
break;
case "minpoolsize": if (kv.Length > 1 && int.TryParse(kv[1].Trim(), out var minPoolSize) && minPoolSize > 0)
{
ret.MinPoolSize = minPoolSize;
}
break;
}
}
return(ret);
}
internal void ResetSentinel()
{
if (ResetSentinelFlag != 0)
{
return;
}
if (Interlocked.Increment(ref ResetSentinelFlag) != 1)
{
Interlocked.Decrement(ref ResetSentinelFlag);
return;
}
string masterhostEnd = _masterHost;
var allkeys = _ib.GetKeys().ToList();
for (int i = 0; i < _sentinels.Count; i++)
{
if (i > 0)
{
var first = _sentinels.First;
_sentinels.RemoveFirst();
_sentinels.AddLast(first.Value);
}
try
{
using (var sentinelcli = new RedisSentinelClient(_sentinels.First.Value))
{
var masterhost = sentinelcli.GetMasterAddrByName(_connectionString.Host);
var masterConnectionString = localTestHost(masterhost, RoleType.Master);
if (masterConnectionString == null)
{
continue;
}
masterhostEnd = masterhost;
if (_rw_splitting)
{
foreach (var slave in sentinelcli.Salves(_connectionString.Host))
{
ConnectionStringBuilder slaveConnectionString = localTestHost($"{slave.ip}:{slave.port}", RoleType.Slave);
if (slaveConnectionString == null)
{
continue;
}
}
}
foreach (var sentinel in sentinelcli.Sentinels(_connectionString.Host))
{
var remoteSentinelHost = $"{sentinel.ip}:{sentinel.port}";
if (_sentinels.Contains(remoteSentinelHost))
{
continue;
}
_sentinels.AddLast(remoteSentinelHost);
}
}
break;
}
catch { }
}
foreach (var spkey in allkeys)
{
_ib.TryRemove(spkey, true);
}
Interlocked.Exchange(ref _masterHost, masterhostEnd);
Interlocked.Decrement(ref ResetSentinelFlag);
ConnectionStringBuilder localTestHost(string host, RoleType role)
{
ConnectionStringBuilder connectionString = _connectionString.ToString();
connectionString.Host = host;
connectionString.MinPoolSize = 1;
connectionString.MaxPoolSize = 1;
using (var cli = new RedisClient(connectionString))
{
if (cli.Role().role != role)
{
return(null);
}
if (role == RoleType.Master)
{
//test set/get
}
}
connectionString.MinPoolSize = connectionString.MinPoolSize;
connectionString.MaxPoolSize = connectionString.MaxPoolSize;
_ib.TryRegister(host, () => new RedisClientPool(connectionString, null, TopOwner));
allkeys.Remove(host);
return(connectionString);
}
}
public override TValue AdapterCall <TValue>(CommandPacket cmd, Func <RedisResult, TValue> parse)
{
return(TopOwner.LogCall(cmd, () =>
{
RedisResult rt = null;
RedisClientPool pool = null;
using (var rds = GetRedisSocket(cmd))
{
pool = (rds as DefaultRedisSocket.TempProxyRedisSocket)._pool;
try
{
if (cmd._clusterMovedAsking)
{
cmd._clusterMovedAsking = false;
rds.Write("ASKING");
rds.Read(false);
}
rds.Write(cmd);
rt = rds.Read(cmd._flagReadbytes);
}
catch (Exception ex)
{
if (pool?.SetUnavailable(ex) == true)
{
}
throw ex;
}
}
if (rt.IsError && pool != null)
{
var moved = ClusterMoved.ParseSimpleError(rt.SimpleError);
if (moved != null && cmd._clusterMovedTryCount < 3)
{
cmd._clusterMovedTryCount++;
if (moved.endpoint.StartsWith("127.0.0.1"))
{
moved.endpoint = $"{DefaultRedisSocket.SplitHost(pool._policy._connectionStringBuilder.Host).Key}:{moved.endpoint.Substring(10)}";
}
else if (moved.endpoint.StartsWith("localhost", StringComparison.CurrentCultureIgnoreCase))
{
moved.endpoint = $"{DefaultRedisSocket.SplitHost(pool._policy._connectionStringBuilder.Host).Key}:{moved.endpoint.Substring(10)}";
}
ConnectionStringBuilder connectionString = pool._policy._connectionStringBuilder.ToString();
connectionString.Host = moved.endpoint;
RegisterClusterNode(connectionString);
if (moved.ismoved)
{
_slotCache.AddOrUpdate(moved.slot, connectionString.Host, (k1, v1) => connectionString.Host);
}
if (moved.isask)
{
cmd._clusterMovedAsking = true;
}
TopOwner.OnNotice(new NoticeEventArgs(NoticeType.Info, null, $"{(cmd.WriteHost ?? "Not connected")} > {cmd}\r\n{rt.SimpleError} ", null));
return AdapterCall(cmd, parse);
}
}
rt.IsErrorThrow = TopOwner._isThrowRedisSimpleError;
return parse(rt);
}));
}
//closure connectionString
void RegisterClusterNode(ConnectionStringBuilder connectionString)
{
_ib.TryRegister(connectionString.Host, () => new RedisClientPool(connectionString, null, TopOwner));
}
void RefershClusterNodes()
{
foreach (var testConnection in _clusterConnectionStrings)
{
RegisterClusterNode(testConnection);
//尝试求出其他节点，并缓存slot
try
{
var cnodes = AdapterCall <string>("CLUSTER".SubCommand("NODES"), rt => rt.ThrowOrValue <string>()).Split('\n');
foreach (var cnode in cnodes)
{
if (string.IsNullOrEmpty(cnode))
{
continue;
}
var dt = cnode.Trim().Split(' ');
if (dt.Length < 9)
{
continue;
}
if (!dt[2].StartsWith("master") && !dt[2].EndsWith("master"))
{
continue;
}
if (dt[7] != "connected")
{
continue;
}
var endpoint = dt[1];
var at40 = endpoint.IndexOf('@');
if (at40 != -1)
{
endpoint = endpoint.Remove(at40);
}
if (endpoint.StartsWith("127.0.0.1"))
{
endpoint = $"{DefaultRedisSocket.SplitHost(testConnection.Host).Key}:{endpoint.Substring(10)}";
}
else if (endpoint.StartsWith("localhost", StringComparison.CurrentCultureIgnoreCase))
{
endpoint = $"{DefaultRedisSocket.SplitHost(testConnection.Host).Key}:{endpoint.Substring(10)}";
}
ConnectionStringBuilder connectionString = testConnection.ToString();
connectionString.Host = endpoint;
RegisterClusterNode(connectionString);
for (var slotIndex = 8; slotIndex < dt.Length; slotIndex++)
{
var slots = dt[slotIndex].Split('-');
if (ushort.TryParse(slots[0], out var tryslotStart) &&
ushort.TryParse(slots[1], out var tryslotEnd))
{
for (var slot = tryslotStart; slot <= tryslotEnd; slot++)
{
_slotCache.AddOrUpdate(slot, connectionString.Host, (k1, v1) => connectionString.Host);
}
}
}
}
break;
}
catch
{
_ib.TryRemove(testConnection.Host, true);
}
}
if (_ib.GetKeys().Length == 0)
{
throw new RedisClientException($"All \"clusterConnectionStrings\" failed to connect");
}
}
/// <summary>
/// Sentinel RedisClient
/// </summary>
public RedisClient(ConnectionStringBuilder sentinelConnectionString, string[] sentinels, bool rw_splitting)
{
Adapter = new SentinelAdapter(this, sentinelConnectionString, sentinels, rw_splitting);
}
/// <summary>
/// Pooling RedisClient
/// </summary>
public RedisClient(ConnectionStringBuilder connectionString, params ConnectionStringBuilder[] slaveConnectionStrings)
{
Adapter = new PoolingAdapter(this, connectionString, slaveConnectionStrings);
}
