通过StackExchange.Redis无法重新连接到Azure中的Redis [英] Can't reconnect to Azure Redis via StackExchange.Redis

问题描述

买者的：好了，所以这是一个奇怪的一个，我不知道如果是的话是正确的地方

我有一个Azure的网站连接到Azure的Redis的缓存实例。 （使用StackExchange.Redis）

一切是伟大的，后来有一天 - 网站couln't连接到Redis的

错误：

  

这是不可能连接到redis的服务器（S）;以创建断开连接多路复用器，禁用AbortOnConnectFail。 SocketFailure上PING

下面是我的连接字符串：

  

mycache.redis.cache.windows.net，SSL = TRUE，密码= XXXXXX，syncTimeout = 5000

下面是我的诊断步骤：

1. 尝试，并从地方到Azure的Redis的连接。结果是：成功（？因此code为好）
2. 尝试和升速新的Azure Redis的情况下，从Azure的连接。结果：FAIL（？网站无法连接到任何蔚蓝Redis的实例）
3. 在提速过程所需新Azure的网站，用同样的code的示数code，指向现有的Redis缓存。结果是：成功（？嗯，什么）
4. 文件新的MVC的网站，加入StackExchange.Redis，部署到新的Azure网站，连接到Redis的。结果是：成功（？所以Redis的还是不错的）
5. 在部署上述香草MVC的网站的现有的Azure的网站（所以同样的code为4，连接到同一个Redis的，唯一的区别在于它使用了旧的Azure网站物理计算机/网络）。结果：FAIL（WTF？）

所以 - 我想的Redis已经列入黑名单的Azure的网站？ （是，即使可能吗？）我知道的客户的（我的code）将不会尝试重新连接保持，但我反弹的网站很多次，它只是不能重新连接到Redis的。

这纺了的新的Azure的网站，事实上与一样code 的连接到的一样Redis的实例的结果成功，告诉我，某种黑名单/路由问题的Azure / Redis的已发生。

任何想法？

修改的

看起来问题是天青VNET。当我的网站是在Azure虚拟网络的一部分，它不能连接到Redis的。但是，当我走在网络它的出的，它连接的罚款。在今天之前，这种设置是工作的罚款。

所以，我想知道是否天青作出了变化，从而在互联星空网站无法连接到Azure的Redis的？ （是没有意义的，我知道）

编辑2 的：

附从Redis的连接尝试的日志。

  

例外：这是不可能连接到redis的服务器（S）;至   创建断开连接多路复用器，禁用AbortOnConnectFail。   SocketFailure上PING   连接字符串，删除：6380，密码= 密码删除，SSL = TRUE   连接连接字符串，删除：6380 /互动...   BeginConnect：连接字符串，删除：6380 1独特的节点   指定请求从抢七的连接字符串，删除：6380

     

    

__ Booksleeve_TieBreak ...允许端点00:00:05回应...等待任务完成，IOCP：（BUSY = 0，自由= 1000，最小为1，最大= 1000），     工人：（BUSY = 4，免费= 32763，最小为1，最大值= 32767）并非所有任务完成     干净，IOCP：（BUSY = 0，自由= 1000，最小为1，最大= 1000），工人：     （BUSY = 5，免费= 32762，最小为1，最大值= 32767）的连接字符串，删除：6380     没有回应等待任务完成，IOCP：     （BUSY = 0，自由= 1000，最小为1，最大= 1000），工人：     （BUSY = 5，免费= 32762，最小为1，最大值= 32767）并非所有的任务完成了干净，     IOCP：（BUSY = 0，自由= 1000，最小为1，最大= 1000），工人：     （BUSY = 5，免费= 32762，最小为1，最大值= 32767）的连接字符串，删除：6380     未能提名（WaitingForActivati​​on）无大师检测     连接字符串，删除：6380：独立V2.0.0，硕士;保持活动：00:01:00; INT：连接;子：连接;不再用：     DidNotRespond 连接字符串，删除：6380：INT OPS = 0，屈= 2，     QS = 0，QC = 0，WR = 0，袜子= 1;子OPS = 0，曲= 0，QS = 0，QC = 0，WR = 0，袜子= 1     循环运算数的快照; INT：0（0.00 OPS /秒​​;跨越10秒）;分：0     （0.00 OPS /秒​​;跨越10秒）同步超时：0;射后不理：0;持续     心跳：-1s前重新连接失败重试...重试;     企图离开：2 ... 1独特的节点指定的请求从抢七     连接字符串，删除：6380> __Booksleeve_TieBreak ...允许端点00:00:05回应...等待任务完成，IOCP：     （BUSY = 0，自由= 1000，最小为1，最大= 1000），工人：     （BUSY = 6，免费= 32761，最小为1，最大值= 32767）并非所有的任务完成了干净，     IOCP：（BUSY = 0，自由= 1000，最小为1，最大= 1000），工人：     （BUSY = 7，免费= 32760，最小为1，最大值= 32767）的连接字符串，删除：6380     没有回应等待任务完成，IOCP：     （BUSY = 0，自由= 1000，最小为1，最大= 1000），工人：     （BUSY = 7，免费= 32760，最小为1，最大值= 32767）并非所有的任务完成了干净，     IOCP：（BUSY = 0，自由= 1000，最小为1，最大= 1000），工人：     （BUSY = 7，免费= 32760，最小为1，最大值= 32767）的连接字符串，删除：6380     未能提名（WaitingForActivati​​on）无大师检测     连接字符串，删除：6380：独立V2.0.0，硕士;保持活动：00:01:00; INT：连接;子：连接;不再用：     DidNotRespond 连接字符串，删除：6380：INT OPS = 0，屈= 2，     QS = 0，QC = 0，WR = 0，异步= 3，袜子= 2;子OPS = 0，曲= 0，QS = 0，QC = 0，WR = 0，     袜子= 2圆形运数的快照; INT：0（0.00 OPS /秒​​;跨越10秒）;     子：0（0.00 OPS /秒​​;跨越10秒）同步超时：0;射后不理：0;     最后的心跳：-1的前重置连接失败重试...     重试;企图离开：1 ... 1独特的节点指定的请求     抢七从连接字符串，删除：6380>     __Booksleeve_TieBreak ...允许端点00:00:05回应...等待任务完成，IOCP：（BUSY = 0，自由= 1000，最小为1，最大= 1000），     工人：（BUSY = 8，免费= 32759，最小为1，最大值= 32767）EndConnect：     连接字符串，删除：6380（套接字关闭）连接完成：连接字符串，删除：6380所有任务完成干净利落，IOCP：（BUSY = 0，自由= 1000 ，最小为1，最大= 1000），工人：     （BUSY = 11，免费= 32756，最小为1，最大值= 32767）     连接字符串，删除：6380故障：SocketFailure上PING等待任务完成，IOCP：（BUSY = 0，自由= 1000，最小为1，最大= 1000），     工人：（BUSY = 11，免费= 32756，最小为1，最大值= 32767）并非所有任务完成     干净，IOCP：（BUSY = 0，自由= 1000，最小为1，最大= 1000），工人：     （BUSY = 7，免费= 32760，最小为1，最大值= 32767）的连接字符串，删除：6380     未能提名（WaitingForActivati​​on）无大师检测     连接字符串，删除：6380：独立V2.0.0，硕士;保持活动：00:01:00; INT：连接;子：连接;不再用：     DidNotRespond 连接字符串，删除：6380：INT OPS = 0，屈= 2，     QS = 0，QC = 0，WR = 0，异步= 7，袜子= 3;子OPS = 0，曲= 0，QS = 0，QC = 0，WR = 0，     袜子= 3圆形运数的快照; INT：0（0.00 OPS /秒​​;跨越10秒）;     子：0（0.00 OPS /秒​​;跨越10秒）同步超时：0;射后不理：0;     最后的心跳：-1s前

  

谁能破译这个？

解决方案

我的Azure的Web应用程序的团队 - 它看起来像你的互联星空钻进了特别奇怪的状态，并中断网络连接为您的应用程序。我已经解决了这个问题。

我们是令人难以置信的深表歉意......

Caveat: Okay so this is a weird one, and i'm not sure if SO is the right place.

I have an Azure Website connecting to an Azure Redis Cache instance. (using StackExchange.Redis)

Everything was great, then one day - the website couln't connect to Redis.

Error:

It was not possible to connect to the redis server(s); to create a disconnected multiplexer, disable AbortOnConnectFail. SocketFailure on PING

Here's my connection string:

mycache.redis.cache.windows.net,ssl=true,password=xxxxxx,syncTimeout=5000

Here were my diagnosis steps:

1. Try and connect from local to Azure Redis. Result: SUCCESS (so code is good?)
2. Try and spinup NEW Azure Redis instance, connect from Azure. Result: FAIL (website can't connect to ANY azure Redis instance?)
3. Spinup NEW Azure Website, with same code as erroring code, pointing to existing Redis cache. Result: SUCCESS (um, what?)
4. File new MVC website, add StackExchange.Redis, deploy to new Azure Website, connecting to Redis. Result: SUCCESS (so Redis is good?)
5. Deploy above vanilla MVC website to existing Azure Website (so same code as 4, connecting to same Redis, only difference is it's using the old Azure Website physical machine/networking). Result: FAIL (wtf??)

So - i'm thinking Redis has "blacklisted" the Azure website? (is that even possible?) I know that the client (my code) won't try and keep reconnecting, but i've bounced the site many times, and it just can't reconnect to Redis.

The fact that spinning up a new Azure Website, with the same code connecting to the same Redis instance results in success, tells me that some kind of blacklisting/routing issue has occured in Azure/Redis.

Any ideas?

EDIT

Looks like the problem is Azure VNET. When my website is part of the Azure Virtual Network, it can't connect to Redis. But when i take it out of the network, it connects fine. Before today, this setup was working fine.

So im wondering if Azure has made a change so that websites in a VNET cannot connect to Azure Redis? (makes no sense i know)

EDIT 2:

Attached is the logs from the Redis connection attempt.

Exception: It was not possible to connect to the redis server(s); to create a disconnected multiplexer, disable AbortOnConnectFail. SocketFailure on PING connection-string-removed:6380,password=password-removed,ssl=True Connecting connection-string-removed:6380/Interactive... BeginConnect: connection-string-removed:6380 1 unique nodes specified Requesting tie-break from connection-string-removed:6380

__Booksleeve_TieBreak... Allowing endpoints 00:00:05 to respond... Awaiting task completion, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=4,Free=32763,Min=1,Max=32767) Not all tasks completed cleanly, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=5,Free=32762,Min=1,Max=32767) connection-string-removed:6380 did not respond Awaiting task completion, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=5,Free=32762,Min=1,Max=32767) Not all tasks completed cleanly, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=5,Free=32762,Min=1,Max=32767) connection-string-removed:6380 failed to nominate (WaitingForActivation) No masters detected connection-string-removed:6380: Standalone v2.0.0, master; keep-alive: 00:01:00; int: Connecting; sub: Connecting; not in use: DidNotRespond connection-string-removed:6380: int ops=0, qu=2, qs=0, qc=0, wr=0, socks=1; sub ops=0, qu=0, qs=0, qc=0, wr=0, socks=1 Circular op-count snapshot; int: 0 (0.00 ops/s; spans 10s); sub: 0 (0.00 ops/s; spans 10s) Sync timeouts: 0; fire and forget: 0; last heartbeat: -1s ago resetting failing connections to retry... retrying; attempts left: 2... 1 unique nodes specified Requesting tie-break from connection-string-removed:6380 > __Booksleeve_TieBreak... Allowing endpoints 00:00:05 to respond... Awaiting task completion, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=6,Free=32761,Min=1,Max=32767) Not all tasks completed cleanly, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=7,Free=32760,Min=1,Max=32767) connection-string-removed:6380 did not respond Awaiting task completion, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=7,Free=32760,Min=1,Max=32767) Not all tasks completed cleanly, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=7,Free=32760,Min=1,Max=32767) connection-string-removed:6380 failed to nominate (WaitingForActivation) No masters detected connection-string-removed:6380: Standalone v2.0.0, master; keep-alive: 00:01:00; int: Connecting; sub: Connecting; not in use: DidNotRespond connection-string-removed:6380: int ops=0, qu=2, qs=0, qc=0, wr=0, async=3, socks=2; sub ops=0, qu=0, qs=0, qc=0, wr=0, socks=2 Circular op-count snapshot; int: 0 (0.00 ops/s; spans 10s); sub: 0 (0.00 ops/s; spans 10s) Sync timeouts: 0; fire and forget: 0; last heartbeat: -1s ago resetting failing connections to retry... retrying; attempts left: 1... 1 unique nodes specified Requesting tie-break from connection-string-removed:6380 > __Booksleeve_TieBreak... Allowing endpoints 00:00:05 to respond... Awaiting task completion, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=8,Free=32759,Min=1,Max=32767) EndConnect: connection-string-removed:6380 (socket shutdown) Connect complete: connection-string-removed:6380 All tasks completed cleanly, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=11,Free=32756,Min=1,Max=32767) connection-string-removed:6380 faulted: SocketFailure on PING Awaiting task completion, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=11,Free=32756,Min=1,Max=32767) Not all tasks completed cleanly, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=7,Free=32760,Min=1,Max=32767) connection-string-removed:6380 failed to nominate (WaitingForActivation) No masters detected connection-string-removed:6380: Standalone v2.0.0, master; keep-alive: 00:01:00; int: Connecting; sub: Connecting; not in use: DidNotRespond connection-string-removed:6380: int ops=0, qu=2, qs=0, qc=0, wr=0, async=7, socks=3; sub ops=0, qu=0, qs=0, qc=0, wr=0, socks=3 Circular op-count snapshot; int: 0 (0.00 ops/s; spans 10s); sub: 0 (0.00 ops/s; spans 10s) Sync timeouts: 0; fire and forget: 0; last heartbeat: -1s ago

Can anyone decipher this?

解决方案

I'm with the Azure Web Apps team - it looks like your VNET got into a particularly strange state, and was interrupting network connectivity for your app. I have fixed this behavior.

We are incredibly sorry for the inconvenience...

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