(failed to lazily initialize a collection, no session or session was closed) error in quartz-0.4.2 in grails 1.3.7
grails, grails-orm, hibernate, java, quartz-scheduler
Solution
The problem is that either the Hibernate session is not open or it was closed. Please go through the link http://docs.jboss.org/hibernate/orm/3.3/reference/en/html/performance.html#performance-fetching-lazy
Also it may be the case that the object got detached from the hibernate session. You can try this:
attach the object back to the hibernate session like this: object.attach() (http://grails.org/doc/2.2.1/ref/Domain%20Classes/attach.html) make the association between the two domain classes non-lazy (http://grails.org/doc/2.2.x/ref/Database%20Mapping/lazy.html)
Problem
Job ``` class PicSchedulerJob { def myDataService def springSecurityService static triggers = { simple name:'picsJob', startDelay:1000,repeatInterval:30*60*1000 } def group = "icsJobGroup" def execute() { def userList=User.list() userList?.each{User user-> def fullList= Album.findAllByUser(user) springSecurityService.reauthenticate(user.username) fullList?.each{Album a-> myDataService.removePicsFilter( a) } } } } ``` Method: ``` def removePicsFilter(Album a){ def tempList=a.photo int siz=tempList.size()?:0 for(int i=0;i<siz;i++) { Photo photodb=tempList[i] PhotoConnection photoConnection=PhotoConnection.findByPhoto(photodb) photoConnection?.tags.each{ Tag t=Tag.get(it.id) t.delete() } } a.save(validate:true,flush:true) } ``` Error:2013-12-06 20:20:59,618 [quartzScheduler_Worker-5] ERROR hibernate.LazyInitializationException - failed to lazily initialize a collection, no session or session was closed org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:380) Job is quartz job code, method code called by job and its error is the error i am facing..i also try the code with Album.withTransaction and also Album.withSession but not able to fix it. Pls guide me on this