[Dev] [EI] Getting empty cached response

Keerthika Mahendralingam Wed, 31 Jan 2018 23:22:09 -0800

Hi All,

I have cloned the latest fix for cache mediator and tried with WSO2 EI
6.1.1-update19-SNAPSHOT. But I'm getting the correct response to the first
call and an empty response to the subsequent request. What could be the
reason?


I'm using the following proxy:

<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse";
       name="connectMockito"
       startOnLoad="true"
       statistics="disable"
       trace="disable"
       transports="http,https">
   <target>
      <inSequence>
         <cache collector="false" maxMessageSize="1024" timeout="300">
            <onCacheHit>
               <respond/>
            </onCacheHit>
            <protocol type="HTTP">
               <methods>GET</methods>
               <headersToExcludeInHash/>
               <responseCodes>(1|2)[0-9][0-9]</responseCodes>

 
<hashGenerator>org.wso2.carbon.mediator.cache.digest.HttpRequestHashGenerator</hashGenerator>
            </protocol>
            <implementation maxSize="100"/>
         </cache>
         <send>
            <endpoint>
               <address uri="http://demo2236300.mockable.io/testService"/>
            </endpoint>
         </send>
      </inSequence>
      <outSequence>
         <log level="full"/>
         <cache collector="true"/>
         <send/>
      </outSequence>
   </target>
   <description/>
</proxy>



*Log:*

[2018-02-01 11:14:45,069] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 << "GET /testService HTTP/1.1[\r][\n]"

[2018-02-01 11:14:45,069] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 << "Accept: */*[\r][\n]"

[2018-02-01 11:14:45,069] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 << "Content-Type: application/json[\r][\n]"

[2018-02-01 11:14:45,069] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 << "Host: demo2236300.mockable.io[\r][\n]"

[2018-02-01 11:14:45,069] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 << "Connection: Keep-Alive[\r][\n]"

[2018-02-01 11:14:45,069] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 << "User-Agent: Synapse-PT-HttpComponents-NIO[\r][\n]"

[2018-02-01 11:14:45,069] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 << "[\r][\n]"

[2018-02-01 11:14:45,789] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "HTTP/1.1 200 OK[\r][\n]"

[2018-02-01 11:14:45,789] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "cache-control: no-cache[\r][\n]"

[2018-02-01 11:14:45,789] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "access-control-allow-origin: *[\r][\n]"

[2018-02-01 11:14:45,789] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "Content-Type: application/json; charset=UTF-8[\r][\n]"

[2018-02-01 11:14:45,789] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "X-Cloud-Trace-Context:
8321c3bfbcd3e65e547803b2ed325200[\r][\n]"

[2018-02-01 11:14:45,790] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "Date: Thu, 01 Feb 2018 05:44:45 GMT[\r][\n]"

[2018-02-01 11:14:45,790] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "Server: Google Frontend[\r][\n]"

[2018-02-01 11:14:45,790] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "Content-Length: 27[\r][\n]"

[2018-02-01 11:14:45,790] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "[\r][\n]"

[2018-02-01 11:14:45,790] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "{[\n]"

[2018-02-01 11:14:45,790] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> " "msg": "Hello Worldaa"[\n]"

[2018-02-01 11:14:45,790] [EI-Core] DEBUG - wire HTTP-Sender I/O
dispatcher-1 >> "}"

[2018-02-01 11:14:45,821] [EI-Core]  INFO - LogMediator To:
http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: ,
MessageID: urn:uuid:933544bb-4a63-4d0b-9022-2fe03d54b6db, Direction:
response, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";><soapenv:Body><jsonObject><msg>Hello
Worldaa</msg></jsonObject></soapenv:Body></soapenv:Envelope>

[2018-02-01 11:14:45,845] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "HTTP/1.1 200 OK[\r][\n]"

[2018-02-01 11:14:45,845] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "access-control-allow-origin: *[\r][\n]"

[2018-02-01 11:14:45,845] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "X-Cloud-Trace-Context:
8321c3bfbcd3e65e547803b2ed325200[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "cacheKey:
-27-21-649412412586-85-97-8340-52-11-819416[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "cache-control: no-cache[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "Content-Type: application/json; charset=UTF-8[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "Date: Thu, 01 Feb 2018 05:44:45 GMT[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "Transfer-Encoding: chunked[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "17[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "{"msg":"Hello Worldaa"}[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "0[\r][\n]"

[2018-02-01 11:14:45,846] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-1 << "[\r][\n]"

[2018-02-01 11:14:51,035] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 >> "GET /services/connectMockito HTTP/1.1[\r][\n]"

[2018-02-01 11:14:51,036] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 >> "Host: keerthikas-macbook-pro.local:8280[\r][\n]"

[2018-02-01 11:14:51,036] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 >> "User-Agent: curl/7.54.0[\r][\n]"

[2018-02-01 11:14:51,036] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 >> "Accept: */*[\r][\n]"

[2018-02-01 11:14:51,037] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 >> "Content-Type: application/json[\r][\n]"

[2018-02-01 11:14:51,037] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 >> "[\r][\n]"

[2018-02-01 11:14:51,045] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "HTTP/1.1 200 OK[\r][\n]"

[2018-02-01 11:14:51,045] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "access-control-allow-origin: *[\r][\n]"

[2018-02-01 11:14:51,045] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "X-Cloud-Trace-Context:
8321c3bfbcd3e65e547803b2ed325200[\r][\n]"

[2018-02-01 11:14:51,045] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "cacheKey:
-27-21-649412412586-85-97-8340-52-11-819416[\r][\n]"

[2018-02-01 11:14:51,045] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "cache-control: no-cache[\r][\n]"

[2018-02-01 11:14:51,045] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "Content-Type: application/json; charset=UTF-8[\r][\n]"

[2018-02-01 11:14:51,045] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "Date: Thu, 01 Feb 2018 05:44:51 GMT[\r][\n]"

[2018-02-01 11:14:51,045] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "Transfer-Encoding: chunked[\r][\n]"

[2018-02-01 11:14:51,045] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "[\r][\n]"

[2018-02-01 11:14:51,046] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "0[\r][\n]"

[2018-02-01 11:14:51,046] [EI-Core] DEBUG - wire HTTP-Listener I/O
dispatcher-2 << "[\r][\n]"--
<dev-requ...@wso2.org>
Keerthika Mahendralingam
Software Engineer
Mobile :+94 (0) 776 121144
keerth...@wso2.com
WSO2, Inc.
lean . enterprise . middleware

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[Dev] [EI] Getting empty cached response

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