尝试在Redis中的2组中插入750个项目时出现StackExchange TimeoutException

Question

最初，我尝试 将一些项目集合插入2个redis集 （也许这根本不是个好主意，但是…）。我尝试一次添加 的条目数 ： 750+

现在，当我 尝试使用StackExchange.redis 客户端 执行此操作时， 确实 会收到超时异常 ，这很有趣，我
能够使用 之前研究过的 “旧版”书架 客户端 完成类似的操作 。

因此，我肯定在某些方面（甚至在我的ine bookSleeve实现中）错了，只是想弄清楚到底是什么错。以下是我用于redis客户端的代码示例：
BookSleeve：

using (var tran = connection.CreateTransaction())
{
Task lastOpTask = null;
tran.SuspendFlush();
try
{
    // perform required configurations/ actions
    tran.Sets.Add(_redisConfiguration.DbNumber, CurrentIdsSetDbKey, stringIds);
    tran.Sets.Add(_redisConfiguration.DbNumber, CurrentDetailsSetDbKey, stringDetails);
    lastOpTask = tran.Execute();
    isOperationSuccessful = true;
}
catch (TaskCanceledException ex)
{
    ...
}
catch (TimeoutException ex1)
{
    ...
}
finally
{
    tran.ResumeFlush();
}

if (lastOpTask != null)
{
    connection.Wait(lastOpTask);
    ...
}
}

StackExchange.redis执行相同的代码：

var tran = db.CreateTransaction();

// todo: do we need to add here any condition or PipeLining? any watch/unwatch verifications?
tran.SetAddAsync(CurrentIdsSetDbKey, stringIds);
tran.SetAddAsync(CurrentDetailsSetDbKey, stringDetails);

try
{
    isOperationSuccessful = tran.Execute();
}
catch (TaskCanceledException ex)
{
    ...
}
catch (TimeoutException ex1)
{
    ...
}

启动单元测试后，我收到StackExchange客户端的下一个错误：

Message: Timeout performing EXEC, inst: 3, queue: 3, qu=0, qs=3, qc=0, wr=0/0

Source: in StackExchange.Redis.ConnectionMultiplexer.ExecuteSyncImpl[T](Message message, ResultProcessor1 processor, ServerEndPoint server) in c:\TeamCity\buildAgent\work\18a91a3757cef937\StackExchange.Redis\StackExchange\Redis\ConnectionMultiplexer.cs:line 1693 in StackExchange.Redis.RedisBase.ExecuteSync[T](Message message, ResultProcessor1 processor, ServerEndPoint server) in c:\TeamCity\buildAgent\work\18a91a3757cef937\StackExchange.Redis\StackExchange\Redis\RedisBase.cs:line 92 in StackExchange.Redis.RedisTransaction.Execute(CommandFlags flags) in c:\TeamCity\buildAgent\work\18a91a3757cef937\StackExchange.Redis\StackExchange\Redis\RedisTransaction.cs:line 51 in DFS.Cache.CacheManager.RedisStackExchange.RedisContestCacheManager.RegisterAvailableContests(IList1 contests) in d:\Projects\DFS\Code\DFS\DFS.Cache.CacheManager.RedisStackExchange\RedisContestCacheManager.cs:line 131

只是想知道，我到底在做什么错。 预先感谢您的任何建议！

PS对于stackEchange.redis配置，我正在使用Marc从github提供的配置示例（可在此处找到：StackExchange /
StackExchange.Redis / blob / master / Docs / Configuration.md）

PS请参阅当前的StackExchange客户端配置文件：

var config = new ConfigurationOptions
{
    EndPoints =
        {
            {"MasterIP", 6379},
            {"SlaveIP", 6380}
        },
    CommandMap = CommandMap.Create(new HashSet<string>
        {
            // EXCLUDE a few commands (to work with data-flow-related mode only)
            "INFO",
            "CONFIG",
            "CLUSTER",
            "PING",
            "ECHO",
            "CLIENT"
        }, available: false),
    KeepAlive = 60, // 60 sec to ensure connection is alive
    ConnectTimeout = 5000, // 5 sec
    SyncTimeout = 5000, // 5 sec
    ServiceName = "mymaster", // sentinel service name
    DefaultVersion = new Version(2, 8, 8),
    Password = "password"
};

标准条目（用于集合）如下所示：

{
    "Id":"08e5ffdbced046cb8f55c50e4bab822d",
    "Entries":0,
    "State":"i",
    "Name":"very dummy entry name value: autoGet 299",
    "Summary": "entry summary details, some long string 299, some common info, some data: true, 8200"
    "IsMultiple":true,
    "IsPublic":true,
    "MaxEntries":8200,
    "IsEntryVisible":true,
    "StartDate":"9/10/2014 12:00:00 AM"
}

PS在Marc回应后，我进行了几次测试，并在单元测试中遇到了其他一些错误，例如

{"Timeout performing SISMEMBER set:raw:Ids, inst: 1, queue: 6, qu=0, qs=6, qc=0, wr=0/0"} when set contains not more than 300 items.

因此，我同意这是连接问题，并且与当前切换到StackExchange.redis客户端无关。

Answer 1

以下通过就好了，并在本地报告10ms。如果您能填补空白，我将非常感兴趣，这样我就可以进行代表性测试来重现该问题。请注意，这qu=0, qs=3告诉我，在超时时，我们正在等待redis服务器响应。显然，本地带宽和延迟会很有趣，但是从根本上讲， 它应该可以工作
。我也会对您的同步超时设置感兴趣。

using System.Diagnostics;
using System.Linq;
using NUnit.Framework;

namespace StackExchange.Redis.Tests.Issues
{
    [TestFixture]
    public class SO22786599 : TestBase
    {
        [Test]
        public void Execute()
        {
            string CurrentIdsSetDbKey = Me() + ".x";
            string CurrentDetailsSetDbKey = Me() + ".y";

            RedisValue[] stringIds = Enumerable.Range(1, 750).Select(i => (RedisValue)(i + " id")).ToArray();
            RedisValue[] stringDetails = Enumerable.Range(1, 750).Select(i => (RedisValue)(i + " detail")).ToArray();

            using (var conn = Create())
            {
                var db = conn.GetDatabase();
                var tran = db.CreateTransaction();

                tran.SetAddAsync(CurrentIdsSetDbKey, stringIds);
                tran.SetAddAsync(CurrentDetailsSetDbKey, stringDetails);

                var watch = Stopwatch.StartNew();
                var isOperationSuccessful = tran.Execute();
                watch.Stop();
                System.Console.WriteLine("{0}ms", watch.ElapsedMilliseconds);
                Assert.IsTrue(isOperationSuccessful);                
            }
        }
    }
}