.net - 无法通过 StackExchange.Redis 重新连接到 Azure Redis

Question

警告:好吧，这是一个奇怪的地方，我不确定 SO 是否是正确的地方。

我有一个连接到 Azure Redis 缓存实例的 Azure 网站。 (使用 StackExchange.Redis)

一切都很好，然后有一天 - 网站无法连接到 Redis。

错误:

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

这是我的连接字符串:

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

这是我的诊断步骤:

1. 尝试从本地连接到 Azure Redis。结果:成功(所以代码很好？)
2. 尝试启动新的 Azure Redis 实例，从 Azure 连接。结果:失败(网站无法连接到任何 azure Redis 实例？)
3. 启动新的 Azure 网站，其代码与错误代码相同，指向现有的 Redis 缓存。结果:成功(嗯，什么？)
4. 归档新的 MVC 网站，添加 StackExchange.Redis，部署到新的 Azure 网站，连接到 Redis。结果:成功(所以 Redis 很好？)
5. 将上述普通 MVC 网站部署到现有 Azure 网站(因此与 4 相同的代码，连接到相同的 Redis，唯一的区别是它使用旧的 Azure 网站物理机/网络)。结果:失败(wtf？)

那么 - 我认为 Redis 已将 Azure 网站“列入黑名单”？ (这可能吗？)我知道客户端(我的代码)不会尝试并保持重新连接，但我已经多次退回该网站，它就是无法重新连接到 Redis .

事实告诉我，使用相同的代码连接到相同的 Redis 实例会成功启动一个新的 Azure 网站Azure/Redis 中出现某种黑名单/路由问题。

有什么想法吗？

编辑

问题似乎出在 Azure VNET 上。当我的网站属于 Azure 虚拟网络时，它无法连接到 Redis。但是当我将其从网络中取出时，它连接得很好。在今天之前，此设置运行良好。

所以我想知道 Azure 是否进行了更改，以便 VNET 中的网站无法连接到 Azure Redis？ (我知道这毫无意义)

编辑 2:

附件是 Redis 连接尝试的日志。

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

有人能破译这个吗？

Answer 1

我来自 Azure Web Apps 团队 - 看起来您的 VNET 进入了一种特别奇怪的状态，并且正在中断您的应用程序的网络连接。我已修复此行为。

对于给您带来的不便，我们深感抱歉...