Memcache Session timeouts default to 10 min and not as per SessionTimeout settings

mnjpatle · February 22, 2021, 6:00pm

Hello,

We are using GitHub - lucee/extension-memcached extension for session. memcache server we using AWS server.
We having issue of session time out in 10 minutes and its not using the session timeout values set in application cfc.

I updated the latest snapshot and updated setting in application cfc as below

this.ApplicationTimeout=CreateTimeSpan(1,0,0,0);
this.SessionTimeout=CreateTimeSpan(0,1,0,0);
this.sessionStorage = “memcache”;
this.SessionManagement=true;
this.setClientCookies = true;
this.setDomainCookies = false;

this.cache.connections[“memcache”] = {
class: ‘org.lucee.extension.cache.mc.MemcachedCache’
, bundleName: ‘memcached.extension’
, bundleVersion: ‘4.0.0.7-SNAPSHOT’
, storage: true
, custom: {
“log”:"",
“default_expires”:“3600”,
“protocol”:“Binary”,
“compress”:“true”,
“failure_mode”:“Redistribute”,
“servers”:“xxxxxmemcached.xxxxxxxx.amazonaws.com:11211”
}
, default: ‘’
};

OS: centos-release-7-6.1810.2.el7.centos.x86_64
Java Version: 11.0.3 (AdoptOpenJDK) 64bit
Tomcat Version: Apache Tomcat/9.0.41
Lucee Version: Lucee 5.3.6.61

Any help or guidance will be great.

Thank you,

Zac_Spitzer · February 22, 2021, 6:00pm

there’s a newish timeout option?

mnjpatle · February 25, 2021, 2:50pm

Hello @Zac_Spitzer thanks for reply, Do you mean by the setting option default_expires ?
Yes if you notice in my settings codebase, I have set it to 1 hour as “default_expires”:“3600”,
Not sure why its not picking up,

Please let me know if I missed anything else you wanted to pointed out.

Zac_Spitzer · February 25, 2021, 2:55pm

there’s a new timeout option

github.com

lucee/extension-memcached/blob/master/source/java/src/org/lucee/extension/cache/mc/MemcachedCache.java#L67


		this.cacheName = cacheName;
		this.arguments = arguments;
		{
			CFMLEngine engine = CFMLEngineFactory.getInstance();
			Cast cast = engine.getCastUtil();
			// maxSize (maximal size before objects get Compressed)
			boolean gzip = cast.toBooleanValue(arguments.get("compress", null), false);
			long maxSize = cast.toLongValue(arguments.get("maxsize", null), ONE_MB);
			timeout = cast.toLongValue(arguments.get("timeout", null),
					DefaultConnectionFactory.DEFAULT_OPERATION_TIMEOUT);
			// log
			String strLog = cast.toString(arguments.get("log", null), null);
			if (!Util.isEmpty(strLog, true)) {
				this.log = config.getLog(strLog.trim());
			}
			TranscoderImpl _transcoder = new TranscoderImpl(config.getClassLoader(), gzip, maxSize, log);
			// host(s)/port(s)

mnjpatle · February 25, 2021, 2:58pm

OK thanks, I will try this parameter in my application cfc. BTW this parameter setup wasn’t provided in Lucee admin to setup, and identically it should use the sessiontimeout setting from application cfc. Your Thoughts ?

Zac_Spitzer · February 25, 2021, 3:09pm

i think timeout just needs to be added as field below

github.com

lucee/extension-memcached/blob/master/source/CFML/src/context/admin/cdriver/MemCached.cfc

<!--- 
 *
 * Copyright (c) 2015, Lucee Association Switzerland. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 * 
 ---><cfcomponent extends="Cache">
	
    <cfset fields=array(

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I would set the memcached timeout slightly longer than the lucee session,

ie 2-3 mins (the inactivity timeout for a session before it gets saved to memcached)

better a stale session in memcached than a session scope disappearing