在aws VPC中将DAX连接到lamda功能VPC

Question

无法连接来自lamda功能的DAX api调用在连接时出错。

TART RequestId: 91744a72-6b81-11e7-b7b9-81ab3e1f67f1 Version: $LATEST 
[2017-07-18 06:23:09.356] NO-REQUEST-ID ERROR c.a.d.c.SocketTubePool - error connecting to /172.31.20.237:8111 java.net.ConnectException: Connection timed out (Connection timed out) 
[2017-07-18 06:23:09.356] NO-REQUEST-ID ERROR c.a.d.c.SocketTubePool - error connecting to /172.31.20.237:8111 java.net.ConnectException: Connection timed out (Connection timed out) 
[2017-07-18 06:23:09.364] NO-REQUEST-ID ERROR c.a.d.c.SocketTubePool - error connecting to /172.31.20.237:8111 java.net.ConnectException: Connection timed out (Connection timed out) 
[2017-07-18 06:23:09.364] NO-REQUEST-ID ERROR c.a.d.c.c.Cluster - caught exception during cluster refresh: java.io.IOException: failed to configure cluster endpoints from hosts: [dax122.fwef.clusefwefwetercfg.dax.use1.cache.amazonaws.com:8111] 
java.io.IOException: failed to configure cluster endpoints from hosts: [dax122.fwef.clusefwefwetercfg.dax.use1.cache.amazonaws.com:8111] 

Answer 1

这是连接超时异常。如果端口8111在入站规则中打开，您应该检查AWS防火墙设置。

这些设置位于安全策略部分的AWS仪表板中。

Answer 2

您可以检查用于启动DAX群集的安全组的安全组配置吗？您需要授权用于启动集群的安全组上的TCP端口8111上的入站流量，并使用用于lambda函数配置的安全组作为源。请参阅documentation获取更多帮助。