Re: [Architecture] [Progress] HTTP Session Persistence for WSO2 Application Server
Hi Pubudu, Also please test with GD enabled. We ran into issues in session replication when GD was enabled in the following scenario. Enable GD in node 1 and 2 - Start node1 - update session attributes by sending requests to node 1 - start node 2 (make sure during this startup the ghost webapp is getting deployed instead actual webapp) - shutdown node 1 once node 2 has started - check whether the session is replicated to node 2 Thanks. /Gayashan On Wed, Nov 19, 2014 at 5:20 PM, KasunG Gajasinghe kas...@wso2.com wrote: Hi Pubudu, Did you also verify how does the Tomcat session persistence work with the Hazelcast based session replication? And, what are locations handled by the HouseKeepingTask? As I've seen it deletes the CARBON_HOME/tmp/work folder. Any reason why it deletes CARBON_HOME/lib/tomcat/work/Catalina/localhost? On Wed, Nov 19, 2014 at 5:13 PM, Pubudu Dissanayake pubu...@wso2.com wrote: Hi folks As of now I've completed base implementation support for HTTP Session persistence for Appserver. Therefore we can define Persistent Manager element [1] http://tomcat.apache.org/tomcat-7.0-doc/config/manager.html as follows in global context.xml. *FileStore support * Manager className=' org.wso2.carbon.webapp.mgt.CarbonTomcatSessionPersistentManager' saveOnRestart='false' maxActiveSessions='5' minIdleSwap='0' maxIdleSwap='1' maxIdleBackup='0' Store className='org.apache.catalina.session.FileStore' directory='location'/ /Manager *Completed tasks * - Preliminary testing for CarbonTomcatSessionPersistentManager can be found here [2] https://docs.google.com/a/wso2.com/spreadsheets/d/1XVlYOp6grJKX4qPbk96QlyUN6VlCrPf1xo2fnE4gzvY/edit#gid=0, but tests were conducted for FileStore (org.apache.catalina.session.FileStore) support only - CarbonTomcatSessionPersistentManager element support for context.xml, As of now we only support CarbonTomcatSessionManager. *TODOs* - Tenant-aware PersistentManager support for CarbonTomcatSessionPersistentManager - JDBC implementation (org.apache.catalina.session.JDBCStore) support - Perform thorough test scenarios on session persistence vs session replication. [1] http://tomcat.apache.org/tomcat-7.0-doc/config/manager.html [2] https://docs.google.com/a/wso2.com/spreadsheets/d/1XVlYOp6grJKX4qPbk96QlyUN6VlCrPf1xo2fnE4gzvY/edit#gid=0 http://tomcat.apache.org/tomcat-7.0-doc/config/manager.html On Mon, Nov 17, 2014 at 12:01 PM, Pubudu Dissanayake pubu...@wso2.com wrote: On Mon, Nov 17, 2014 at 11:52 AM, Afkham Azeez az...@wso2.com wrote: Ok, go ahead with your implementation. Noted On Mon, Nov 17, 2014 at 11:49 AM, Afkham Azeez az...@wso2.com wrote: So globally switching the SessionManager can be done by editing the global context.xml file? Indeed, we can configure it by editing global context.xml -- *Pubudu Dissanayake* Software Engineer WSO2 Inc.; http://wso2.com lean.enterprise.middleware Mob: + 94 775 503 304 Blog: http://geekdetected.wordpress.com/ Linkedin: *http://lk.linkedin.com/in/pubududissanayake* http://lk.linkedin.com/in/pubududissanayake Flickr : https://www.flickr.com/photos/pubudufx/ Twitter: https://twitter.com/GeekInAction -- *Kasun Gajasinghe*Senior Software Engineer, WSO2 Inc. email: kasung AT spamfree wso2.com linked-in: http://lk.linkedin.com/in/gajasinghe blog: http://kasunbg.org ___ Architecture mailing list Architecture@wso2.org https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture -- *Gayashan Amarasinghe* Software Engineer | Platform TG WSO2, Inc. | http://wso2.com lean. enterprise. middleware Mobile : +94718314517 Blog : gayashan-a.blogspot.com ___ Architecture mailing list Architecture@wso2.org https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture
[Architecture] [Progress] HTTP Session Persistence for WSO2 Application Server
Hi Azeez/Sameera and et al. I'm currently undergoing development of $subject [1] https://redmine.wso2.com/issues/3417 In the current implementation of embedded tomcat in appserver doesn't supports Manager[2] http://tomcat.apache.org/tomcat-7.0-doc/config/manager.html attributes defines in context.xml which is a big disadvantage for $Subject implementation. Furthermore we explicitly change Manager element via code level so no flexibility toward clients to change Manager attributes via context.xml. Tomcat provides two Manager element implementations StandardManager and PersistentManager. PersistentManager has the capability to swap active (but idle) sessions out to a persistent storage mechanism[2] http://tomcat.apache.org/tomcat-7.0-doc/config/manager.html, as well as to save all sessions across a normal restart of Tomcat. Our Appserver has tenant-aware StandardManager implementation called CarbonTomcatSessionManager but no PersistenceManager support yet. I'm proposing we should go ahead and implement tenant-aware PersistentManager support ( CarbonTomcatSessionPersistentManager ) thus it will help us to achieve tenant-aware session persistence in future releases. We should provide support for persistent Stores via context.xml as well, in result end-users can configure different store elements in context.xml. On going preliminary test scenarios [4] https://docs.google.com/a/wso2.com/spreadsheets/d/1XVlYOp6grJKX4qPbk96QlyUN6VlCrPf1xo2fnE4gzvY/edit#gid=0 [3] https://docs.google.com/a/wso2.com/presentation/d/15YyXzpj877LHmZtPQGIidgh-wnBVStiBTBN5oci6AMk/edit?usp=sharing WDYT? [1] https://redmine.wso2.com/issues/3417 [2] http://tomcat.apache.org/tomcat-7.0-doc/config/manager.html [3] https://docs.google.com/a/wso2.com/presentation/d/15YyXzpj877LHmZtPQGIidgh-wnBVStiBTBN5oci6AMk/edit?usp=sharing [4] https://docs.google.com/a/wso2.com/spreadsheets/d/1XVlYOp6grJKX4qPbk96QlyUN6VlCrPf1xo2fnE4gzvY/edit#gid=0 -- *Pubudu Dissanayake* Software Engineer WSO2 Inc.; http://wso2.com lean.enterprise.middleware Mob: + 94 775 503 304 Blog: http://geekdetected.wordpress.com/ Linkedin: *http://lk.linkedin.com/in/pubududissanayake* http://lk.linkedin.com/in/pubududissanayake Flickr : https://www.flickr.com/photos/pubudufx/ Twitter: https://twitter.com/GeekInAction ___ Architecture mailing list Architecture@wso2.org https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture
Re: [Architecture] [Progress] HTTP Session Persistence for WSO2 Application Server
On Mon, Nov 17, 2014 at 8:53 AM, Pubudu Dissanayake pubu...@wso2.com wrote: CarbonTomcatSessionManager What if you simply improve CarbonTomcatSessionManager to support persistence as well, rather than writing a new class? If you want to turn off persistence, you can have a parameter. -- *Afkham Azeez* Director of Architecture; WSO2, Inc.; http://wso2.com Member; Apache Software Foundation; http://www.apache.org/ * http://www.apache.org/* *email: **az...@wso2.com* az...@wso2.com * cell: +94 77 3320919blog: **http://blog.afkham.org* http://blog.afkham.org *twitter: **http://twitter.com/afkham_azeez* http://twitter.com/afkham_azeez *linked-in: **http://lk.linkedin.com/in/afkhamazeez http://lk.linkedin.com/in/afkhamazeez* *Lean . Enterprise . Middleware* ___ Architecture mailing list Architecture@wso2.org https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture
Re: [Architecture] [Progress] HTTP Session Persistence for WSO2 Application Server
On Mon, Nov 17, 2014 at 10:06 AM, Afkham Azeez az...@wso2.com wrote: On Mon, Nov 17, 2014 at 8:53 AM, Pubudu Dissanayake pubu...@wso2.com wrote: CarbonTomcatSessionManager What if you simply improve CarbonTomcatSessionManager to support persistence as well, rather than writing a new class? If you want to turn off persistence, you can have a parameter. CarbonTomcatSessionManager [1] http://svn.wso2.org/repos/wso2/carbon/platform/branches/turing/components/webapp-mgt/org.wso2.carbon.webapp.mgt/4.2.2/src/main/java/org/wso2/carbon/webapp/mgt/CarbonTomcatSessionManager.javadoesn't support persistence features provided by tomcat, it extends StandardManager [2] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/StandardManager.java?av=f as its base class. However PersistentManager [3] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManager.java extends PersistentManagerBase [4] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManagerBase.java as its base class thus it contains all persistence related store configurations. Because StandardManager and PersistentManager are two different implementations, we can't use CarbonTomcatSessionManager to support persistence. And we can configure persistence easily by separating these two implementations. WDYT? [1] http://svn.wso2.org/repos/wso2/carbon/platform/branches/turing/components/webapp-mgt/org.wso2.carbon.webapp.mgt/4.2.2/src/main/java/org/wso2/carbon/webapp/mgt/CarbonTomcatSessionManager.java [2] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/StandardManager.java?av=f [3] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManager.java [4] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManagerBase.java -- *Pubudu Dissanayake* Software Engineer WSO2 Inc.; http://wso2.com lean.enterprise.middleware Mob: + 94 775 503 304 Blog: http://geekdetected.wordpress.com/ Linkedin: *http://lk.linkedin.com/in/pubududissanayake* http://lk.linkedin.com/in/pubududissanayake Flickr : https://www.flickr.com/photos/pubudufx/ Twitter: https://twitter.com/GeekInAction ___ Architecture mailing list Architecture@wso2.org https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture
Re: [Architecture] [Progress] HTTP Session Persistence for WSO2 Application Server
So globally switching the SessionManager can be done by editing the global context.xml file? On Mon, Nov 17, 2014 at 11:41 AM, Pubudu Dissanayake pubu...@wso2.com wrote: On Mon, Nov 17, 2014 at 10:06 AM, Afkham Azeez az...@wso2.com wrote: On Mon, Nov 17, 2014 at 8:53 AM, Pubudu Dissanayake pubu...@wso2.com wrote: CarbonTomcatSessionManager What if you simply improve CarbonTomcatSessionManager to support persistence as well, rather than writing a new class? If you want to turn off persistence, you can have a parameter. CarbonTomcatSessionManager [1] http://svn.wso2.org/repos/wso2/carbon/platform/branches/turing/components/webapp-mgt/org.wso2.carbon.webapp.mgt/4.2.2/src/main/java/org/wso2/carbon/webapp/mgt/CarbonTomcatSessionManager.javadoesn't support persistence features provided by tomcat, it extends StandardManager [2] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/StandardManager.java?av=f as its base class. However PersistentManager [3] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManager.java extends PersistentManagerBase [4] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManagerBase.java as its base class thus it contains all persistence related store configurations. Because StandardManager and PersistentManager are two different implementations, we can't use CarbonTomcatSessionManager to support persistence. And we can configure persistence easily by separating these two implementations. WDYT? [1] http://svn.wso2.org/repos/wso2/carbon/platform/branches/turing/components/webapp-mgt/org.wso2.carbon.webapp.mgt/4.2.2/src/main/java/org/wso2/carbon/webapp/mgt/CarbonTomcatSessionManager.java [2] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/StandardManager.java?av=f [3] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManager.java [4] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManagerBase.java -- *Pubudu Dissanayake* Software Engineer WSO2 Inc.; http://wso2.com lean.enterprise.middleware Mob: + 94 775 503 304 Blog: http://geekdetected.wordpress.com/ Linkedin: *http://lk.linkedin.com/in/pubududissanayake* http://lk.linkedin.com/in/pubududissanayake Flickr : https://www.flickr.com/photos/pubudufx/ Twitter: https://twitter.com/GeekInAction -- *Afkham Azeez* Director of Architecture; WSO2, Inc.; http://wso2.com Member; Apache Software Foundation; http://www.apache.org/ * http://www.apache.org/* *email: **az...@wso2.com* az...@wso2.com * cell: +94 77 3320919blog: **http://blog.afkham.org* http://blog.afkham.org *twitter: **http://twitter.com/afkham_azeez* http://twitter.com/afkham_azeez *linked-in: **http://lk.linkedin.com/in/afkhamazeez http://lk.linkedin.com/in/afkhamazeez* *Lean . Enterprise . Middleware* ___ Architecture mailing list Architecture@wso2.org https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture
Re: [Architecture] [Progress] HTTP Session Persistence for WSO2 Application Server
Ok, go ahead with your implementation. On Mon, Nov 17, 2014 at 11:49 AM, Afkham Azeez az...@wso2.com wrote: So globally switching the SessionManager can be done by editing the global context.xml file? On Mon, Nov 17, 2014 at 11:41 AM, Pubudu Dissanayake pubu...@wso2.com wrote: On Mon, Nov 17, 2014 at 10:06 AM, Afkham Azeez az...@wso2.com wrote: On Mon, Nov 17, 2014 at 8:53 AM, Pubudu Dissanayake pubu...@wso2.com wrote: CarbonTomcatSessionManager What if you simply improve CarbonTomcatSessionManager to support persistence as well, rather than writing a new class? If you want to turn off persistence, you can have a parameter. CarbonTomcatSessionManager [1] http://svn.wso2.org/repos/wso2/carbon/platform/branches/turing/components/webapp-mgt/org.wso2.carbon.webapp.mgt/4.2.2/src/main/java/org/wso2/carbon/webapp/mgt/CarbonTomcatSessionManager.javadoesn't support persistence features provided by tomcat, it extends StandardManager [2] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/StandardManager.java?av=f as its base class. However PersistentManager [3] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManager.java extends PersistentManagerBase [4] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManagerBase.java as its base class thus it contains all persistence related store configurations. Because StandardManager and PersistentManager are two different implementations, we can't use CarbonTomcatSessionManager to support persistence. And we can configure persistence easily by separating these two implementations. WDYT? [1] http://svn.wso2.org/repos/wso2/carbon/platform/branches/turing/components/webapp-mgt/org.wso2.carbon.webapp.mgt/4.2.2/src/main/java/org/wso2/carbon/webapp/mgt/CarbonTomcatSessionManager.java [2] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/StandardManager.java?av=f [3] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManager.java [4] http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat/tomcat-catalina/7.0.0/org/apache/catalina/session/PersistentManagerBase.java -- *Pubudu Dissanayake* Software Engineer WSO2 Inc.; http://wso2.com lean.enterprise.middleware Mob: + 94 775 503 304 Blog: http://geekdetected.wordpress.com/ Linkedin: *http://lk.linkedin.com/in/pubududissanayake* http://lk.linkedin.com/in/pubududissanayake Flickr : https://www.flickr.com/photos/pubudufx/ Twitter: https://twitter.com/GeekInAction -- *Afkham Azeez* Director of Architecture; WSO2, Inc.; http://wso2.com Member; Apache Software Foundation; http://www.apache.org/ * http://www.apache.org/* *email: **az...@wso2.com* az...@wso2.com * cell: +94 77 3320919 %2B94%2077%203320919blog: * *http://blog.afkham.org* http://blog.afkham.org *twitter: **http://twitter.com/afkham_azeez* http://twitter.com/afkham_azeez *linked-in: **http://lk.linkedin.com/in/afkhamazeez http://lk.linkedin.com/in/afkhamazeez* *Lean . Enterprise . Middleware* -- *Afkham Azeez* Director of Architecture; WSO2, Inc.; http://wso2.com Member; Apache Software Foundation; http://www.apache.org/ * http://www.apache.org/* *email: **az...@wso2.com* az...@wso2.com * cell: +94 77 3320919blog: **http://blog.afkham.org* http://blog.afkham.org *twitter: **http://twitter.com/afkham_azeez* http://twitter.com/afkham_azeez *linked-in: **http://lk.linkedin.com/in/afkhamazeez http://lk.linkedin.com/in/afkhamazeez* *Lean . Enterprise . Middleware* ___ Architecture mailing list Architecture@wso2.org https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture
Re: [Architecture] [Progress] HTTP Session Persistence for WSO2 Application Server
On Mon, Nov 17, 2014 at 11:52 AM, Afkham Azeez az...@wso2.com wrote: Ok, go ahead with your implementation. Noted On Mon, Nov 17, 2014 at 11:49 AM, Afkham Azeez az...@wso2.com wrote: So globally switching the SessionManager can be done by editing the global context.xml file? Indeed, we can configure it by editing global context.xml ___ Architecture mailing list Architecture@wso2.org https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture
