Exception reading response - IP:11210 and status code 132

connections
.net
server

#1

Hi, we have .NET web app using couchbase sdk to connect to couchbase and sometimes it is getting errors with IOperationResult.Message as “Exception reading response - :11210” and IOperationResult.StatusCode as 302.

This only happens during certain times. Everyone went ok after a while without my intervention on either app server or couchbase server.

The couchbase server is 4.1.0-5005 Community Edition (build-5005) running on Windows Server 2008 R2 Standard.

I have checked the couchbase server logs around the same time this happens and found the following errors in memcached.log.

2016-10-11T14:27:27.449295+08:00 WARNING 4924 Closing connection [10.8.4.60:56973 - 10.8.5.171:11210] due to read error: An existing connection was forcibly closed by the remote host.

2016-10-11T14:27:27.460038+08:00 WARNING 4948 Closing connection [10.8.4.60:56975 - 10.8.5.171:11210] due to read error: An existing connection was forcibly closed by the remote host.

Similar errors are found in ns_server.babysitter.log also as follows.

[ns_server:info,2016-10-11T14:27:27.643+08:00,babysitter_of_ns_1@127.0.0.1:<0.79.0>:ns_port_server:log:210]memcached<0.79.0>: 2016-10-11T14:27:27.449295+08:00 WARNING 4924 Closing connection [10.8.4.60:56973 - 10.8.5.171:11210] due to read error: An existing connection was forcibly closed by the remote host.

memcached<0.79.0>: 2016-10-11T14:27:27.460038+08:00 WARNING 4948 Closing connection [10.8.4.60:56975 - 10.8.5.171:11210] due to read error: An existing connection was forcibly closed by the remote host.

memcached<0.79.0>: 2016-10-11T14:27:27.460038+08:00 WARNING 4940 Closing connection [10.8.4.60:56978 - 10.8.5.171:11210] due to read error: An existing connection was forcibly closed by the remote host.

I couldn’t find any relevant event in other log files around that time (I might be missing something here).

Any insight on why this is happening?