WSO2 Enterprise Integrator 6.3.0 cache mediator

Question

i'm using the cache mediator for store a big response from the backend to have less time in subsequent calls. I have added, before the call, the cache mediator with this configuration:

<cache collector="false" maxMessageSize="100000" timeout="20">
    <protocol type="HTTP">
        <methods>*</methods>
        <headersToExcludeInHash/>
        <responseCodes>2[0-9][0-9]</responseCodes>
        <enableCacheControl>false</enableCacheControl>
        <includeAgeHeader>false</includeAgeHeader>
        <hashGenerator>org.wso2.carbon.mediator.cache.digest.HttpRequestHashGenerator</hashGenerator>
    </protocol>
    <implementation maxSize="100000"/>
</cache>

and before the respond i have added this

<cache collector="true"/>

i have done this following the documentation here Cache Mediator

If i call the api without the second cache mediator, it answer me but not cache and if i call the api with both the cache mediator it turns in error:

"Request messages cannot be handled in a collector cache"

What i wrong? Thank you

Answer 1

This error comes up when, a cache mediator with collector true is defined in the request flow. (ie The cache collector is used before calling a backend server from the ESB). Please make sure the flow is correct.

Please share the synapse configuration if the issue is not resolved, so that we can help.

Answer 2

I have tried to insert the mediator with colllector true in the response flow but no changes. This is my synapse config