问题描述
我有一种方法将输入作为列表并将每个项目存储在Azure Redis缓存中。
public async Task<bool> StoreAsBatch<T>(T data)
{
var storeData = new List<Task<bool>>();
try
{
foreach (var each in data as List<EmpUser>)
{
storeData.Add(Store(each.UserId,each));
}
await Task.WhenAll(storeData).ConfigureAwait(false);
}
catch (Exception ex)
{
_logger.LogError($"StoreAsBatch failed with an exception - {ex.Message} ");
return false;
}
return true;
}
这是Store方法
public async Task<bool> Store<T>(string key,T value)
{
if (string.IsNullOrEmpty(key))
throw new ArgumentException(nameof(key));
key = $"emp_user_{key}";
string val = JsonConvert.SerializeObject(value);
return await _database.StringSetAsync(key,JsonConvert.SerializeObject(value),new TimeSpan(30,0));
}
当我将列表(列表大小:1k条记录)传递给上述 StoreAsBatch 方法时。我正在这样的异常 错误
Timeout awaiting response (outbound=0KiB,inbound=0KiB,7625ms elapsed,timeout is 5000ms),command=SETEX,next: SETEX emp_user_00mb1,inst: 0,qu: 0,qs: 1,aw: True,rs: DequeueResult,ws: Writing,in: 0,serverEndpoint: mrcooper-originations-boss-dev.redis.cache.windows.net:6380,mc: 1/1/0,mgr: 9 of 10 available,clientName: WIN10H-DLPIH45D,IOCP: (Busy=0,Free=1000,Min=8,Max=1000),WORKER: (Busy=2,Free=32765,Max=32767),v: 2.1.58.34321 (Please take a look at this article for some common client-side issues that can cause timeout)
我是Azure Redis缓存的新手。请帮助我解决错误。
谢谢。
解决方法
基于@CamiloTervinto的建议并参考此Redis Configuration文档。
在设置Redis缓存时,我可以通过增加异步调用的阈值时间来解决错误。
这是参考代码。
方法1
public void SetUpCacheManager()
{
try
{
_lazyConnection = new Lazy<ConnectionMultiplexer>(() =>
{
string connectionString = _config.AzureRedis.HostName + _config.AzureRedis.Password + _config.AzureRedis.Ssl;
var redisConfig = ConfigurationOptions.Parse(connectionString);
redisConfig.AsyncTimeout = 15000;
return ConnectionMultiplexer.Connect(redisConfig);
});
_database = Connection.GetDatabase();
}
catch(Exception e)
{
_logger.LogError($"(SetUpCacheManager): Exception in Connecting to Cache,Message: {e.Message}");
}
}
方法2
public async Task<bool> StoreAsBatch(List<EncompassUser> data)
{
Parallel.ForEach(data,new ParallelOptions{MaxDegreeOfParallelism = 10 },(obj) =>
{
try
{
Store(obj.UserId,obj);
}
catch (Exception ex)
{
_logger.LogError($"StoreAsBatch failed with an exception - {ex.Message} ");
}
});
return true;
}