string SetMaster(string name, int timeout)
{
for (int i = 0; i < _sentinels.Count; i++)
{
if (i > 0)
{
Next();
}
using (var sentinel = Current())
{
try
{
if (!sentinel.Connect(timeout))
{
continue;
}
}
catch (Exception)
{
continue;
}
var master = sentinel.GetMasterAddrByName(name);
if (master == null)
{
continue;
}
if (_redisClient != null)
{
_redisClient.Dispose();
}
_redisClient = new RedisClient(master.Item1, master.Item2);
_redisClient.Connected += OnConnectionConnected;
try
{
if (!_redisClient.Connect(timeout))
{
continue;
}
var role = _redisClient.Role();
if (role.RoleName != "master")
{
continue;
}
//测试 write
var testid = Guid.NewGuid().ToString("N");
_redisClient.StartPipe();
_redisClient.Set(testid, 1);
_redisClient.Del(testid);
_redisClient.EndPipe();
foreach (var remoteSentinel in sentinel.Sentinels(name))
{
Add(remoteSentinel.Ip, remoteSentinel.Port);
}
}
catch (Exception ex)
{
Trace.WriteLine(ex.Message);
Console.WriteLine(ex.Message);
continue;
}
return(master.Item1 + ':' + master.Item2);
}
}
return(null);
}
string SetSlave(string name, int timeout)
{
for (int i = 0; i < _sentinels.Count; i++)
{
if (i > 0)
{
Next();
}
using (var sentinel = Current())
{
try
{
if (!sentinel.Connect(timeout))
{
continue;
}
}
catch (Exception)
{
continue;
}
var slaves = sentinel.Slaves(name);
if (slaves == null)
{
continue;
}
foreach (var slave in slaves)
{
if (_redisClient != null)
{
_redisClient.Dispose();
}
_redisClient = new RedisClient(slave.Ip, slave.Port);
_redisClient.Connected += OnConnectionConnected;
try
{
if (!_redisClient.Connect(timeout))
{
continue;
}
var role = _redisClient.Role();
if (role.RoleName != "slave")
{
continue;
}
foreach (var remoteSentinel in sentinel.Sentinels(name))
{
Add(remoteSentinel.Ip, remoteSentinel.Port);
}
}
catch (Exception ex)
{
Trace.WriteLine(ex.Message);
Console.WriteLine(ex.Message);
continue;
}
return(slave.Ip + ':' + slave.Port);
}
}
}
return(null);
}
// return true if client is master
private bool IsMaster(RedisClient client) => client != null && client.Info("role") == "master";