/// <summary>
/// 获取子项
/// </summary>
/// <param name="redisData"></param>
/// <returns></returns>
public static object GetItems(int offset, RedisData redisData)
{
object result = new object();
if (_redisClients.ContainsKey(redisData.Name))
{
var redisClient = _redisClients[redisData.Name];
if (redisClient.IsConnected)
{
if (redisData.Key == null)
{
redisData.Key = "*";
}
switch (redisData.Type)
{
case 2:
var hresult = redisClient.GetDataBase(redisData.DBIndex).HScan(redisData.ID, offset, redisData.Key, 10);
if (hresult.Data == null && hresult.Offset > 0)
{
hresult = redisClient.GetDataBase(redisData.DBIndex).HScan(redisData.ID, hresult.Offset, redisData.Key, 1000000);
}
result = hresult.Data;
break;
case 3:
var sresult = redisClient.GetDataBase(redisData.DBIndex).SScan(redisData.ID, offset, redisData.Key, 10);
if (sresult.Data == null && sresult.Offset > 0)
{
sresult = redisClient.GetDataBase(redisData.DBIndex).SScan(redisData.ID, offset, redisData.Key, 1000000);
}
result = sresult.Data;
break;
case 4:
var zresult = redisClient.GetDataBase(redisData.DBIndex).ZScan(redisData.ID, offset, redisData.Key, 10);
if (zresult.Data == null && zresult.Offset > 0)
{
zresult = redisClient.GetDataBase(redisData.DBIndex).ZScan(redisData.ID, offset, redisData.Key, 1000000);
}
result = zresult.Data;
break;
case 5:
result = redisClient.GetDataBase(redisData.DBIndex).LRang(redisData.ID, offset, 10);
break;
}
}
}
return(result);
}
public ActionResult GetCount(RedisData redisData)
{
var result = new JsonResult <int>()
{
Code = 3, Message = "操作失败"
};
try
{
if (redisData != null)
{
switch (redisData.Type)
{
case 1:
break;
case 2:
result.Data = CurrentRedisClient.HashSetCount(redisData.Name, redisData.DBIndex, redisData.ID);
break;
case 3:
result.Data = CurrentRedisClient.SAddCount(redisData.Name, redisData.DBIndex, redisData.ID);
break;
case 4:
result.Data = CurrentRedisClient.ZAddCount(redisData.Name, redisData.DBIndex, redisData.ID);
break;
case 5:
result.Data = CurrentRedisClient.LLen(redisData.Name, redisData.DBIndex, redisData.ID);
break;
default:
break;
}
}
result.Code = 1;
result.Message = "ok";
}
catch (Exception ex)
{
LogHelper.Error($"RedisController.GetCount redisData:{SerializeHelper.Serialize(redisData)}", ex);
return(Json(new JsonResult <string>()
{
Code = 2, Message = ex.Message
}));
}
return(Json(result));
}
public ActionResult Set(RedisData redisData)
{
var result = new JsonResult <string>()
{
Code = 3, Message = "操作失败"
};
try
{
if (redisData != null)
{
switch (redisData.Type)
{
case 1:
CurrentRedisClient.StringSet(redisData.Name, redisData.DBIndex, redisData.ID, redisData.Value);
break;
case 2:
CurrentRedisClient.HashSet(redisData.Name, redisData.DBIndex, redisData.ID, redisData.Key, redisData.Value);
break;
case 3:
CurrentRedisClient.SAdd(redisData.Name, redisData.DBIndex, redisData.ID, redisData.Value);
break;
case 4:
CurrentRedisClient.ZAdd(redisData.Name, redisData.DBIndex, redisData.ID, redisData.Key, redisData.Value);
break;
case 5:
CurrentRedisClient.LPush(redisData.Name, redisData.DBIndex, redisData.ID, redisData.Value);
break;
default:
break;
}
}
result.Code = 1;
result.Message = "ok";
}
catch (Exception ex)
{
return(Json(new JsonResult <string>()
{
Code = 2, Message = ex.Message
}));
}
return(Json(result));
}
private static String GetMarkdown(RedisNode node, RedisData data, String title, IList <Action <StringBuilder> > actions)
{
var sb = new StringBuilder();
if (!title.IsNullOrEmpty())
{
sb.AppendLine($"### [{node}]{title}");
}
sb.AppendLine($">**分类：**<font color=\"info\">{node.Category}</font>");
sb.AppendLine($">**版本：**<font color=\"info\">{node.Version}</font>");
sb.AppendLine($">**已用内存：**<font color=\"info\">{data.UsedMemory:n0}</font>");
sb.AppendLine($">**内存容量：**<font color=\"info\">{node.MaxMemory:n0}</font>");
sb.AppendLine($">**连接数：**<font color=\"info\">{data.ConnectedClients:n0}</font>");
sb.AppendLine($">**服务器：**<font color=\"info\">{node.Server}</font>");
//var rate = node.MaxMemory == 0 ? 0 : (data.UsedMemory * 100 / node.MaxMemory);
//if (rate >= node.AlarmMemoryRate && node.AlarmMemoryRate > 0)
//{
// sb.AppendLine($">**内存告警：**<font color=\"info\">{data.UsedMemory}/{node.MaxMemory} >= {node.AlarmMemoryRate:p0}</font>");
//}
//if (node.AlarmConnections > 0 && data.ConnectedClients >= node.AlarmConnections)
//{
// sb.AppendLine($">**连接告警：**<font color=\"info\">{data.ConnectedClients:n0} >= {node.AlarmConnections:n0}</font>");
//}
foreach (var item in actions)
{
item(sb);
}
var str = sb.ToString();
if (str.Length > 2000)
{
str = str.Substring(0, 2000);
}
// 构造网址
var url = Setting.Current.WebUrl;
if (!url.IsNullOrEmpty())
{
url = url.EnsureEnd("/") + "Nodes/RedisNode?id=" + node.Id;
str += Environment.NewLine + $"[更多信息]({url})";
}
return(str);
}
public static int GetItemsCount(int offset, RedisData redisData)
{
lock (_locker)
{
var result = 0;
if (_redisClients.ContainsKey(redisData.Name))
{
var redisClient = _redisClients[redisData.Name];
if (redisClient.IsConnected)
{
if (redisData.Key == null)
{
redisData.Key = "*";
}
switch (redisData.Type)
{
case 2:
var hdata = redisClient.GetDataBase(redisData.DBIndex).HScan(redisData.ID, offset, redisData.Key, 10000).Data;
result = hdata != null ? hdata.Count : 0;
break;
case 3:
var sdata = redisClient.GetDataBase(redisData.DBIndex).SScan(redisData.ID, offset, redisData.Key, 10000).Data;
result = sdata != null ? sdata.Count : 0;
break;
case 4:
var zdata = redisClient.GetDataBase(redisData.DBIndex).ZScan(redisData.ID, offset, redisData.Key, 10000).Data;
result = zdata != null ? zdata.Count : 0;
break;
case 5:
var ldata = redisClient.GetDataBase(redisData.DBIndex).LRang(redisData.ID, offset, 10000);
result = ldata != null ? ldata.Count : 0;
break;
}
}
}
return(result);
}
}
public ActionResult DelItem(RedisData redisData)
{
var result = new JsonResult <string>()
{
Code = 3, Message = "操作失败"
};
try
{
object data = string.Empty;
if (redisData != null)
{
redisData.ID = SAEA.Http.HttpUtility.UrlDecode(redisData.ID);
if (!string.IsNullOrEmpty(redisData.Key))
{
redisData.Key = SAEA.Http.HttpUtility.UrlDecode(redisData.Key);
}
if (!string.IsNullOrEmpty(redisData.Value))
{
redisData.Value = SAEA.Http.HttpUtility.UrlDecode(redisData.Value);
}
CurrentRedisClient.DelItem(redisData);
}
result.Code = 1;
result.Message = "ok";
}
catch (Exception ex)
{
LogHelper.Error($"RedisController.DelItem redisData:{SerializeHelper.Serialize(redisData)}", ex);
return(Json(new JsonResult <string>()
{
Code = 2, Message = ex.Message
}));
}
return(Json(result));
}
/// <summary>
/// 获取子项
/// </summary>
/// <param name="redisData"></param>
/// <returns></returns>
public static object GetItems(RedisData redisData)
{
object result = new object();
if (_redisClients.ContainsKey(redisData.Name))
{
var redisClient = _redisClients[redisData.Name];
if (redisClient.IsConnected)
{
if (redisData.Key == null)
{
redisData.Key = "*";
}
switch (redisData.Type)
{
case 2:
result = redisClient.GetDataBase(redisData.DBIndex).HScan(redisData.ID, 0, redisData.Key, 50).Data;
break;
case 3:
result = redisClient.GetDataBase(redisData.DBIndex).SScan(redisData.ID, 0, redisData.Key, 50).Data;
break;
case 4:
result = redisClient.GetDataBase(redisData.DBIndex).ZScan(redisData.ID, 0, redisData.Key, 50).Data;
break;
case 5:
result = redisClient.GetDataBase(redisData.DBIndex).LRang(redisData.ID, 0, 50);
break;
}
}
}
return(result);
}
private void Update(RedisNativeClient client, string ip)
{
if (client == null)
{
Console.WriteLine("client == null");
return;
}
RedisData reply = null;
try
{
reply = client.RawCommand("CLUSTER", "NODES");
}
catch (RedisException e)
{
if (e.Message.Contains("cluster support disabled"))
{
Global.Info(ip, "Switch to non-cluster mode");
for (int i = 0; i < Global.HashSlotSize; i++)
{
this.slots[i] = client;
}
}
else
{
Global.Error(ip, e.Message);
}
return;
}
if (reply != null)
{
this.ParseClusterNodes(reply.ToRedisText().Text, ip);
}
}
public ActionResult Set(RedisData redisData)
{
return(Json(new RedisService().Set(redisData)));
}
public ActionResult DelItem(RedisData redisData)
{
return(Json(new RedisService().DelItem(redisData)));
}
public ActionResult Rename(RedisData redisData, string newID)
{
return(Json(new RedisService().Rename(redisData, newID)));
}
/// <summary>
/// 获取子项
/// </summary>
/// <param name="offset"></param>
/// <param name="redisData"></param>
/// <returns></returns>
public ActionResult GetItems(int offset, RedisData redisData)
{
return(Json(new RedisService().GetItems(offset, redisData)));
}
/// <summary>
/// 获取数据
/// </summary>
/// <param name="redisData"></param>
/// <returns></returns>
public ActionResult GetCount(RedisData redisData)
{
return(Json(new RedisService().GetCount(redisData)));
}
private void ProcessRedisData(RedisNode node)
{
if (!RobotHelper.CanAlarm(node.Category, node.WebHook))
{
return;
}
if (node.AlarmMemoryRate <= 0 || node.AlarmConnections == 0)
{
return;
}
// 最新数据
var data = RedisData.FindLast(node.Id);
if (data == null)
{
return;
}
using var span = _tracer?.NewSpan($"Alarm:{nameof(RedisNode)}");
var actions = new List <Action <StringBuilder> >();
// 内存告警
var rate = data.UsedMemory * 100 / node.MaxMemory;
if (rate >= node.AlarmMemoryRate)
{
// 一定时间内不要重复报错，除非错误翻倍
var error2 = _cache.Get <Int32>("alarm:RedisMemory:" + node.Id);
if (error2 == 0 || rate > error2 * 2)
{
_cache.Set("alarm:RedisMemory:" + node.Id, rate, 5 * 60);
actions.Add(sb => sb.AppendLine($">**内存告警：**<font color=\"info\">{rate / 100:p0} >= {node.AlarmMemoryRate / 100:p0}</font>"));
}
}
// 连接数告警
var cs = data.ConnectedClients;
if (node.AlarmConnections > 0 && cs >= node.AlarmConnections)
{
// 一定时间内不要重复报错，除非错误翻倍
var error2 = _cache.Get <Int32>("alarm:RedisConnections:" + node.Id);
if (error2 == 0 || cs > error2 * 2)
{
_cache.Set("alarm:RedisConnections:" + node.Id, cs, 5 * 60);
actions.Add(sb => sb.AppendLine($">**连接数告警：**<font color=\"info\">{cs:n0} >= {node.AlarmConnections:n0}</font>"));
}
}
// 速度告警
var speed = data.Speed;
if (node.AlarmSpeed > 0 && speed >= node.AlarmSpeed)
{
// 一定时间内不要重复报错，除非错误翻倍
var error2 = _cache.Get <Int32>("alarm:RedisSpeed:" + node.Id);
if (error2 == 0 || speed > error2 * 2)
{
_cache.Set("alarm:RedisSpeed:" + node.Id, speed, 5 * 60);
actions.Add(sb => sb.AppendLine($">**速度告警：**<font color=\"info\">{speed:n0} >= {node.AlarmSpeed:n0}</font>"));
}
}
// 入流量告警
var input = data.InputKbps;
if (node.AlarmInputKbps > 0 && input >= node.AlarmInputKbps)
{
// 一定时间内不要重复报错，除非错误翻倍
var error2 = _cache.Get <Int32>("alarm:RedisInputKbps:" + node.Id);
if (error2 == 0 || input > error2 * 2)
{
_cache.Set("alarm:RedisInputKbps:" + node.Id, input, 5 * 60);
actions.Add(sb => sb.AppendLine($">**入流量告警：**<font color=\"info\">{input:n0} >= {node.AlarmInputKbps:n0}</font>"));
}
}
// 出流量告警
var output = data.OutputKbps;
if (node.AlarmOutputKbps > 0 && output >= node.AlarmOutputKbps)
{
// 一定时间内不要重复报错，除非错误翻倍
var error2 = _cache.Get <Int32>("alarm:RedisOutputKbps:" + node.Id);
if (error2 == 0 || output > error2 * 2)
{
_cache.Set("alarm:RedisOutputKbps:" + node.Id, output, 5 * 60);
actions.Add(sb => sb.AppendLine($">**出流量告警：**<font color=\"info\">{output:n0} >= {node.AlarmOutputKbps:n0}</font>"));
}
}
if (actions.Count > 0)
{
var msg = GetMarkdown(node, data, "Redis告警", actions);
RobotHelper.SendAlarm(node.Category, node.WebHook, "Redis告警", msg);
}
}
// 读取集群上的节点信息
static IList <InternalClusterNode> ReadClusterNodes(IEnumerable <ClusterNode> source)
{
RedisClient c = null;
StringReader reader = null;
IList <InternalClusterNode> result = null;
int index = 0;
int rowCount = source.Count();
foreach (var node in source)
{
try
{
// 从当前节点读取REDIS集群节点信息
index += 1;
c = new RedisClient(node.Host, node.Port, node.Password);
RedisData data = c.RawCommand("CLUSTER".ToUtf8Bytes(), "NODES".ToUtf8Bytes());
string info = Encoding.UTF8.GetString(data.Data);
// 将读回的字符文本转成强类型节点实体
reader = new StringReader(info);
string line = reader.ReadLine();
while (line != null)
{
if (result == null)
{
result = new List <InternalClusterNode>();
}
InternalClusterNode n = InternalClusterNode.Parse(line);
n.Password = node.Password;
result.Add(n);
line = reader.ReadLine();
}
// 只要任意一个节点拿到集群信息，直接退出
if (result != null && result.Count > 0)
{
break;
}
}
catch (Exception ex)
{
// 出现异常，如果还没到最后一个节点，则继续使用下一下节点读取集群信息
// 否则抛出异常
if (index < rowCount)
{
Thread.Sleep(100);
}
else
{
throw new RedisClusterException(ex.Message, c != null ? c.GetHostString() : string.Empty, ex);
}
}
finally
{
if (reader != null)
{
reader.Dispose();
}
if (c != null)
{
c.Dispose();
}
}
}
if (result == null)
{
result = new List <InternalClusterNode>(0);
}
return(result);
}
