Cache, ColdFusion (11,0,18,314030)

[lmave]

I use cache throughout my site. I am using CachePut, CacheGet,... Since I updated to update 17 I can see that cache gets flushed every couple of minutes even I have set it up for day or longer. Cache is getting created on first call and after refreshing the page content is written from cache. But after couple of minutes cache is flushed and everything starts from beginning. Not sure if there ia any settings that I missed. The code didn't change and it was working for years. I updated to update 18 restarted the server but the issue is still there. What can caused the cache to be flushed? Thanks. Slaven

[BKBK]

Go to the page Server Settings > Caching in the ColdFusion Administrator and review your settings. Is the value for Maximum number of cached templates perhaps too low?

[lmave]

It is set to 2048. I am attaching screenshot of my settings

[BKBK]

You cache settings look OK.

Could you share with the forum your cacheput and cacheget code, together with the code you use to refresh the page.

[lmave]

I use Mura CMS and that is how first I discovered that something is wrong with caching. I have enabled caching for Mura and pages were loading slow. I have other places that I use caching and the same problem. In order to test this issue I created a new folder in the root of my website with two files application.cfc:

component {

    this.name = "myApplication";

    this.applicationTimeout = CreateTimeSpan(10, 0, 0, 0); //10 days

    this.datasource = "my_datasource";

    this.sessionManagement = true;

    this.sessionTimeout = CreateTimeSpan(0, 0, 30, 0); //30 minutes

    function onApplicationStart() {

        return true;

    }

   function onRequest( string targetPage ) {

        include arguments.targetPage;

    }

}

and index.cfm:

<cfoutput>

  <cfset CacheValue = CacheGet("name") />

  CacheValue is NULL: #isNull(CacheValue)#<br>

  <cfif isNull(CacheValue)>

    <cfset CachePut("name", 'var to save', CreateTimeSpan(1,0,0,0) ) />

  </cfif>

  Dump CacheValue:<br>

  <cfdump var="#CacheValue#" />

  <cfscript>      

                Writedump(CacheGetProperties());

                Writedump(CacheGetAllIds());

</cfscript>

</cfoutput>

First time visiting the page https://www.nji-inm.ca/test I get the following response:

CacheValue is NULL: YES

Dump CacheValue:

If I refresh the page I get:

But if I wait couple of minutes and refresh the page I am back to:

CacheValue is NULL: YES

Dump CacheValue:

[BKBK]

Could this perhaps be happening because of where you place the output? To find out, test this:

<cfset CacheValue = cacheGet("name") />

CacheValue is NULL: <cfoutput>#isNull(cacheValue)#</cfoutput><br>

  <cfif isNull(cacheValue)>

    <cfset cachePut("name", 'var to save', createTimeSpan(1,0,0,0) ) />

  </cfif>

  Dump CacheValue:<br>

  <cfdump var="#cacheValue#" />

<cfscript>     

    writedump(cacheGetProperties());

    writedump(cacheGetAllIds());

</cfscript>

[lmave]

That doesn't make a difference. Thanks. Slaven

[nimsharm · Accepted solution]

It looks similar to an issue CF-4204066 reported in ColdFusion 11 Update 18. The fix for both the issues will remain the same.

Please contact cfsup@adobe.com to get the hotfix for this issue.

-Nimit

ColdFusion Team

[BKBK]

Thanks for the update, Nimit.

I am assuming that CF-4204066 has fixed the cfquery/cachedwithin problem that WolfShade found.

[nimsharm]

Yes, this issue has been fixed now.

Can you please try with this hotfix and confirm, if it resolves your issue?

-Nimit

[lmave]

I sent an email to cfsup@adobe.com and waiting for instructions. Slaven

[lmave]

Fix hf1100-4204066.jar worked for me. Slaven

[Charlie Arehart]

Slaven, are you really referring to a single cached thing, that you're watching? That would be odd if you are losing the cache that often. Are you 100% sure that the CF instance is not restarting?

[lmave]

I checked the event log and the coldfusion service is running for 4 days since I installed update 18 and restarted the server. Slaven

[nimsharm]

Do you have sandbox security enabled on this CF instance?

-Nimit

[lmave]

Sandbox security is not enabled.