I’ve been using the Enyim Memcached Client for .Net, trying to connect to a server running on AppHarbor. The relevant parts of my configuration file look like this:
<enyim.com>
<log factory="Enyim.Caching.DiagnosticsLogFactory, Enyim.Caching" />
<memcached protocol="Binary">
<servers>
<add address="8d593f28-37d7-4c4f-a702-aa7687a85ea1.memcacher.com" port="11211" />
</servers>
<authentication
type="Enyim.Caching.Memcached.PlainTextAuthenticator, Enyim.Caching"
userName="changed to post on stack overflow"
password="changed to post on stack overflow"
zone="AUTHZ"
/>
</memcached>
</enyim.com>
My connection keeps timing out. Any ideas whats going on here? Here are the logs from Enyim client:
2012-01-21 18:56:08 [ERROR] 7 Enyim.Caching.Memcached.MemcachedNode.InternalPoolImpl – Could not init pool. – System.TimeoutException: Could not connect to 50.19.210.46:11211
at Enyim.Caching.Memcached.PooledSocket.ConnectWithTimeout(Socket socket, IPEndPoint endpoint, Int32 timeout)
at Enyim.Caching.Memcached.PooledSocket..ctor(IPEndPoint endpoint, TimeSpan connectionTimeout, TimeSpan receiveTimeout)
at Enyim.Caching.Memcached.MemcachedNode.CreateSocket()
at Enyim.Caching.Memcached.Protocol.Binary.BinaryNode.CreateSocket()
at Enyim.Caching.Memcached.MemcachedNode.InternalPoolImpl.CreateSocket()
at Enyim.Caching.Memcached.MemcachedNode.InternalPoolImpl.InitPool()
2012-01-21 18:56:08 [DEBUG] 7 Enyim.Caching.Memcached.MemcachedNode.InternalPoolImpl – Mark as dead was requested for 50.19.210.46:11211
2012-01-21 18:56:08 [DEBUG] 7 Enyim.Caching.Memcached.MemcachedNode.InternalPoolImpl – FailurePolicy.ShouldFail(): True
2012-01-21 18:56:08 [WARN] 7 Enyim.Caching.Memcached.MemcachedNode.InternalPoolImpl – Marking node 50.19.210.46:11211 as dead
2012-01-21 18:56:08 [DEBUG] 7 Enyim.Caching.Memcached.DefaultServerPool – Node 50.19.210.46:11211 is dead.
2012-01-21 18:56:08 [DEBUG] 7 Enyim.Caching.Memcached.DefaultServerPool – Starting the recovery timer.
2012-01-21 18:56:08 [DEBUG] 7 Enyim.Caching.Memcached.DefaultServerPool – Timer started.
2012-01-21 18:56:08 [DEBUG] 7 Enyim.Caching.Memcached.MemcachedNode.InternalPoolImpl – Acquiring stream from pool. 50.19.210.46:11211
2012-01-21 18:56:08 [DEBUG] 7 Enyim.Caching.Memcached.MemcachedNode.InternalPoolImpl – Pool is dead or disposed, returning null. 50.19.210.46:11211
UPDATE:
Turns out the reason I can’t connect to the memcached server is because it’s only accessible from appharbor’s environment. So for anyone else that runs across this, you need to use a local memcached service when developing locally, then simply change the credentials when deploying (which apphaorbor actually does automatically for you). Problem resolved.
AppHarbor Memcacher buckets are only accessible from AppHarbor application servers. The documentation has been amended to clearly reflect this.
You should use a locally installed memcached server for testing.