1. Hibernate - on the stack or on the heap? stackoverflow.comAs a Java programmer, you usually keep two truths in your pocket:
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2. Hibernate out of Memory Heap error stackoverflow.comI've got a Java application that, among other things, goes out to our Active Directory server every hour, and pulls down a list of all the accounts, and dumps them in ... |
3. Hibernate memory management stackoverflow.comI have an application that uses hibernate. At one part I am trying to retrieve documents. Each document has an account number. The model looks something like this: |
4. java persistance memory leaks stackoverflow.comI have 1M rows in a mysql table and I am java persistence api when I execute following code then I get java heap error: |
5. JPA / hibernate maxResult in memory, not before stackoverflow.comi'm facing a problem, i have a query in jpa. as i have some collections i need to use left join fetch or inner join fetch My problem is in using the ... |
6. Hibernate an entire process in Windows stackoverflow.comIt is possible, to save an entire process to a file, in order to restore it into a memory after system reboot, causing it to return to a running state? If ... |
7. Quartz+Hibernate: simple util eats memory. What could be wrong? stackoverflow.com*EDIT: I found the answer to the memory leak myself, and posted it along with the others. If someone can answer why I have to do apply the fix at all ... |
8. JPA is expansive solution when memory is critical coderanch.comHi Syed, Depends on how you are planning to use it. You could turn off caching or manage caching size as a property in persistence.xml. You could always give a shot at it. In my opinion with just 64 MB RAM you should not run any kind of app server on it. |
9. Hibernate memory question coderanch.comOriginally posted by Joe Russo: Does anybody know what the minimal requirement is from Hibernate 3.1.3? I am getting an OutOfMemory error with no specific error that would lead to some other error. Currently we have it set for maximum memory for 128m and minimum for 32m. Any help would be appreciated. Thanks. Joe |
10. Hibernate Memory Leak coderanch.com |
11. Memory leak with Hibernate as JPA provider JSE coderanch.comHallo, I am trying to use Hibernate (hibernate-distribution-3.3.2.GA, hibernate-annotations-3.4.0.GA, hibernate-entitymanager-3.4.0.GA) in an JSE application as JPA provider. I get a memory leak. Heap dump analysis shows that SessionFactoryObjectFactory is the culprit. The class "org.hibernate.impl.SessionFactoryObjectFactory", loaded by " |
12. Hibernate memory optimisations coderanch.com |
13. Hibernate - Out of Memory Issues coderanch.comHi All, we have a leak in our application, and was hoping someone could get me pointed in the right direction to resolve. We go through about 3gb of memory, in about 3 weeks (100 users). The Memory Dump Diagnostic for Java tool, suggest that the likely suspect is a HashTable in the JTASessionContext. We are using CMT, so no specific ... |
14. Memory leak Hibernate as JPA provider under JSE forum.hibernate.orgAuthor Message MarcusDidiusFalco Post subject: Memory leak Hibernate as JPA provider under JSE Posted: Wed Oct 21, 2009 8:19 am Newbie Joined: Sat Feb 16, 2008 3:09 pm Posts: 6 Hallo, I am trying to use Hibernate (hibernate-distribution-3.3.2.GA, hibernate-annotations-3.4.0.GA, hibernate-entitymanager-3.4.0.GA) in an JSE application as JPA provider. I get a memory leak. Heap dump analysis shows that SessionFactoryObjectFactory is ... |
15. Help with Suspected Memory Leak forum.hibernate.orgHi All, we are new to Hibernate, and we are experiencing a memory leak in our application, which seems to be related to our use of Hibernate. I'm sure were probably doing something wrong, but not sure what. Can anyone provide some help? I can provide any other info needed? Our max heap is currently only set to 256, we only ... |
16. Hibernate Memory issue with org.hibernate.engine.EntityEntry forum.hibernate.orgOur application is throwing OutOfMemoryException. We use Hibernate 3 with Spring HibernateTemplate for persistence and have the transactions implemented using Spring AOP Pointcuts and HibernateTransactionManager. Analyzing the Heap Dumps show us java.util.LinkedHashMap$Entry taking up a lot of memory which has the following structure -java.util.LinkedHashMap$Entry -org.hibernate.engine.EntityEntry is taking 506,222 objects which is consuming 70% of memory. -org.hibernate.util.IdentityMap$IdentityKey is taking 506,276 objects We ... |
17. Limit Memory Consumption forum.hibernate.orgNewbie Joined: Wed Apr 14, 2010 9:36 am Posts: 2 Hi everyone This afternoon I faced a problem running Hibernate on a very small system. It actually is an embedded computer running J2ME, but the classpath features all the classes I need to run Spring & Hibernate. Furthermore, the system features about 256MB of RAM, having currently 190MB or so free. ... |
18. Out of memory error forum.hibernate.orgHi All, I have a DAO method written to fetch a list of records based on certain search criteria's. The table mapped to the entity has lot of records and also keeps growing at a faster rate. I use the below method to get all the records satisfying some basic search criterias and show their property values in a 'pdf' or ... |
19. Help with Out of Memory Errors forum.hibernate.orgHi All, something we are doing wrong in Hibernate is causing us to slowly exhaust our memory, and was hoping that someone could give some ideas on where to look to resolve. The Memory Dump Diagnostic for Java tool, suggest that the likely suspect is a HashTable in the JTASessionContext. We are using CMT, so no specific transaction logic in our ... |
20. Memory leak problems forum.hibernate.orgHi, I'm having memory leak problems in my jEE application running on jboss-4.0.3SP1 using hibernate 3.6. It seems to overtime more and more hash entities and string are created and stored in entityPersisters and collectionPersisters which are in org.hibernate.impl.SessionFactoryImpl. The strings seem to be sql statements (probably generated by hibernate by the look of them). Can someone tell me what could ... |
21. What is the proper heap memory for hibernate based website forum.hibernate.orghello, i am planning to develop a web application using J2EE technology and deploy the application on tomcat on java/tomcat host like mochahost, so i need to know what is the proper heap memory for a hibernate based web application since i am using 64 mb for my current version of the website but i want to develop a new version ... |
22. High memory usage forum.hibernate.orgHi, We are using HIbernate 3.3.2 provided JPA 1.0 in our application along with JBPM 4.x and spring 3.x. The integration is working quite fine but only concern is the high CPU usage. When we took the heap dumps we noticed the following objects to be taking maximum amount of memory. 1) org/hibernate/ejb/EntityManagerFactoryImpl --> total size 607 MB 2) org/hibernate/imp/SessionFactoryImpl --> ... |
23. Best practises for minimizing memory footprint forum.hibernate.orgI'm building an application using jpa/hibernate. I want to publish this application to openshift, but openshift has a memory limit of 300MB with only 80MB of PermGen space. When i upload my application to openshift and click a few time, I get an outOfMemoryException due to PermGen space. What are the best practices to minimize the memory footprint with hibernate? Is ... |
24. PermGen out of memory Error when using with Quickfix/J forum.hibernate.orgAuthor Message stapleman527 Post subject: PermGen out of memory Error when using with Quickfix/J Posted: Sun Nov 13, 2011 1:02 pm Newbie Joined: Sun Nov 13, 2011 12:25 pm Posts: 2 I am using Hibernate 3.3.1.GA and initializing it through Spring to write to an Oracle9i database. I am working on an application that uses Quickfix/J to connect out ... |
25. Memory profiling Hibernate-based applications... forum.hibernate.orgI am profiling an application built on top of Hibernate. The profile tool is OptimizeIt. The application appears to create a lot of classes of the form: com.acme.model.company.Company$$ProxiedByCGLIB$$64 com.acme.model.company.Company$$ProxiedByCGLIB$$65 com.acme.model.company.Company$$ProxiedByCGLIB$$72 ...and there is only ever one instance of each of these classes. Under heavy load, the VM created more than a thousand such class definitions in a 24 hour period. I ... |
26. Hibernate 'Out of Memory' Problem forum.hibernate.orgWe are developing a Banking Project. We used Hibernate 1.2 version and got good results in all functions except batch processing. When we do deposit, withdraw process then it works good. But when we start profit posting (for more than 1000 accounts) then Hibernate gives two errors: 1. Maximum Cursor Exceeds 2. Out of Memory To get remedy from this problem ... |
27. serious memory issues when swithcing to 2.1.x vs 2.0.3 forum.hibernate.orghello, everybody I ran into serious memory issues with Hibernate. All I do is simply try to instantiate a SessionFactory, nothing more. The schema is mildly complex (681 tables of 10 to 40 columns), using one-to-many and many-to-one wherever this is possible, lazy loading wherever this is possible. Using Hibernate 2.0.3, the results are the following : - time to instantiate ... |
28. Out of memory error forum.hibernate.orgHello, i am new to hibernate and trying to use it in a simple client server application. i hope i will try to explain well the situation. 1- i have a message class, which contains a client and a session object. , session object contains several session information and an Arraylist of event objects. 2 - Client side is producing an ... |
29. "Out of Memory Error" from Hibernate-Tapestry-Tomc forum.hibernate.orgMy team are using Hibernate - Tapestry and Tomcat as our web project architecture. Version: Tapestry 3.0 beta Hibernate 2.1.1 Tomcat 4.1.29 However the performance is very slow, and we're getting "Out of Memory Error" after few times accessing the database. Can anyone help me solving this problem? If this isn't really a logic error, is there going to be the ... |
30. memory requirements forum.hibernate.org |
31. PropertyNotFoundException - memory size problem? forum.hibernate.orgNewbie Joined: Fri May 07, 2004 1:07 pm Posts: 4 I am getting the stack trace below after adding a couple more classes to my property mapping file. The error is not in the new classes, but in a class above them that has always worked before. Additionally, if I turn on DEBUG level tracing, the PropertyNotFoundException occurs on a *different* ... |
32. Out of memory error forum.hibernate.orgNewbie Joined: Mon Feb 09, 2004 6:45 pm Posts: 10 Location: Feltre, BL Italy Hi all. After days of unsuccesfull tring and ng readings, I eventually have to ask fo help. my application is stand alone, SWT/Jface based gui, spring then hibernate then the DB (mysql). No web, no tomcat or whatever. For the purposes of what follows no gui is ... |
33. Huge Memory Consumation forum.hibernate.orgNewbie Joined: Wed Aug 25, 2004 12:31 pm Posts: 1 I have set up a very basic Bean, that just selects some stuff from a small table. It is running on a Tomncat 5. Although I have disabled query-caching the application consumes more and more memory with each request. Even if I do garbage colelction by intention the memory is not ... |
34. Memory problem forum.hibernate.orgHibernate version: 2.1.7 Name and version of the database you are using: PostgreSQL 8.0 I'm writing a web application using Tomcat 5 and I've just started to add the persistence layer. In this application I need several SessionFactory(es) that are initialized in a class implementing the ServletContextListener interface. After a good number of stop/start of the application (without calling any action!: ... |
35. Iteration with low memory consumption forum.hibernate.orgHibernate version: 2.1.7 Name and version of the database you are using: Oracle 9.2.0.5 I've got a generic question of how to iterate through a set with as less memory consumption as possible. For the application i'm developing i have to process some updates and calculations on a number of lines from one table (let's call them Transactions). These transactions, mapped ... |
36. Perfomance/Memory problem forum.hibernate.orgHibernate version:2.1.8 Hi, I have a really large "tree-like" object model wich includes many one-to-may mappings with cascade="delete" option. My problems are starting when i'm trying to delete the "root" object. While Hibernate is performing cascade deletes, it's actually retrieving all object model into the memory. It is very bad for me - from memory consumption and performance point of view. ... |
37. Problem with memory forum.hibernate.orgHey all, I have about 100.000 objects that need to be saved in a postgresdb. Each of those objects contains an array with by average 2 other classes. So in total 300.000 objects are saved to the database. my code is simple, i have a for loop running over the 100.000 objects and for each object i do a session.save(object); After ... |
38. Out Of memory forum.hibernate.org |
39. Memory leak with SortedMap.subMap(fromkey, tokey) (?) forum.hibernate.orgI have a persistent SortedMap map mapped by HB. Then I call many times map.headMap(value), to find some records. I release all the references to the newly created submaps (they were used only to find records), but they do not get garbage collected. Would it be a thing such as the proxies on the submaps are released only when the collection ... |
40. Out of Memory Error occuring frequently forum.hibernate.orghi i ported my existing application to hibernate sucessfully . but i'm getting out of memory error frequently . i turned on second level caching as well as query caching . i'm using ehcache provider with cache-usage ="read-only" . i also enable setcacheable(true) for my queries . but still my performance is horrible . whats the difference b/w making a query ... |
41. does Hibernates stuff have to consume so much memory? forum.hibernate.orgIt is weird. I have about 400 classes in my app and hibernate consumes about 10 Mo. The best way to see who consumes your memory is to use a profiler. There is a free plugin for eclipse which does that (eclipsecolorer). You can also grab the ea version of yourkit, for me it's the best profiler and very easy to ... |
42. Out Of Memory forum.hibernate.orgIn my relational db, I have a one to many where the many is very larger, > 5000 rows. So I can run into errors where my returned Set can cause out of memory issues. I tried to use, as recommended in the performance section, a scrollabe results set, but then got this error: "scrollable result sets are not enabled" I ... |
43. Memory leak (testcase included) forum.hibernate.org |
44. Possible Memory Leak forum.hibernate.orgHibernate version: 3.1.2 Name and version of the database you are using: MySQL 5.0 Hi Everybody, I have tried to locate a very subtle leak in my application for a little while now. I believe that the problem is related to the hibernate Native SQL queries and the QueryPlanCache. First here is the jmap histogram from my production server (abbreviated): Code: ... |
45. Memory Leaks forum.hibernate.orgHi, We are using Hibernate in production in a standard fashion (adopting the code style of the test directory attached with hibernate installation.) When we retreive 1000 objects in testing environment under JDK1.4 Tomcat 5.5 we see that the memory consumption does not increase in many MB. Although when we turn to production the memory consumption just flies, our production environment ... |
46. Memory Usage Keeps Increasing forum.hibernate.orgHi, I'm importing a lot of information into the database and after I import a few objects Java runs out of heap space and the program quits. I can't see where this memory leak is comming from (I'm most likely not using the session correctly). Here's pseudocode of what I have: Code: class DataExtractor { private Object ... |
47. hibernate Out of memory forum.hibernate.orghi, we have deployed 5 applications on tomcat 5.0 server. One application communicates with other 4 for data retrieval. All 5 are using hibernate to connect to database. Databases used are different (Oracle 9i, mySQL, etc..) Data is only fetched from these databases and there are no data manipulations done. We are facing issues of out of memory error after every ... |
48. Duplicate Hibernate Objects in Memory forum.hibernate.orgHi There, Hi There, I have been through the faqs but havent managed to find a answer to this problem. Yet I think this must be a common question... We are using tomcat 5, webwork, spring and hibernate in a content management system. Our problem is that hibernate seems to have 2 duplicate objects (the same database id) cached somewhere deep ... |
49. Out of memory forum.hibernate.orgNewbie Joined: Mon Jul 31, 2006 2:41 pm Posts: 13 I'm new with Hibernate, and I was just hoping somebody could verify I'm using it efficiently. I'm getting an out of memory error after a while on my dev box using Jetty, and that hasn't happened before. Here is an example of the code that I believe may be causing it: ... |
50. Possible Memory Leak org/hibernate/util/SoftLimitMRUCache forum.hibernate.orgNeed help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version:3.1 Name and version of the database you are using: db2 8 UDB Driver I have a application which is running on production server. Application is runnnng on WAS 6 clustered environment. Database is DB2 8 with UDB driver. Server has huge load during day time. Application normally runs without ... |
51. PermGen memory leak problem forum.hibernate.org |
52. Out of Memory Error forum.hibernate.org |
53. out of memory error forum.hibernate.org[b]Hibernate version: 3.1.3 [b]Full stack trace of any exception that occurs: java.lang.outofmemoryError [b]Name and version of the database you are using: Oracle9i can any one help me how to handle when we try to retrive more rows from database for example at about 50000.... I couldnt able to handle the situation. I am getting out of memory Error... In Hibernate, is ... |
54. Synchronize in-memory instances with persistance forum.hibernate.org |
55. Excess Memory Consumption with Hibernate forum.hibernate.orgI wrote this simple program: Code: public static void main(String[] args) throws Exception { Session s = HibernateUtil.getSession(); ScrollableResults scr = s.createCriteria(Match.class).setCacheMode(CacheMode.IGNORE).scroll(ScrollMode.FORWARD_ONLY); s.close(); } This program fails to run with OutOfMemoryException. After setting jvm parameter to -Xmx128m, I was able to run the program. Execution of second line of code increases the program memory from 18M to 110M. I havent even ... |
56. Out of memory when i try to get more than 5000 rows forum.hibernate.orgHi I' am working with Hibernate 2.1.8 , tomcat 4.1, jdk 1.3.1 and sql server 8 (jtds-1.1.jar) I have a problem when I try to get more than 5000 paging rows because the hibernate doesn't finish to load the data in the memory (I know that because I'm running tomcat in Jprofile 4.2.2) and then I have an out of memory ... |
57. Memory Leak In Hibernate : Need Help forum.hibernate.orgHello all, I'm experiencing problems with heavy memory leak in the perm gen stack of a sun JVM when using Hibernate. I run a webapp under JBoss 4.0.2. Apparently, this is a known bug due to a wrong use of cglib. The bug seems to be fixed in the 3.2.3 release, but the release is still in development. So i have ... |
58. Memory usage by Hibernate3 forum.hibernate.org |
59. Hibernate Core 3.2.3 : Big memory leak forum.hibernate.orgHi, I used to have major memory leaks when using hibernate 3.2.2. This problem was identified in jira bug tracking tool and fixed in version 3.2.3. I've included this brand new version in my application but i still have the memory leak problem. Does anybody have this problem in the last release ? Maybe this bug isn't fixed at all ??? ... |
60. hibernate c++ and in memory forum.hibernate.org |
61. Out of memory in buildSessionFactory forum.hibernate.orgI have around 373 ecore classes which I want to persist in Hibernate. I'm using Eclipse 3.3M6/EMF/TENEO. Teneo creates a mapping file without problem, but buildSessionFactory runs out of memory. My Java heap space is set to the maximum to get eclipse run on my computer 1100MB. I have profiled and debugged code and here is what I suspect. There are ... |
62. How to hold objects in memory forum.hibernate.orgI have been searching for a solution of this for a while. I still don't quite understand how this can be achieved. Let me first explain my project. What I have are: PostgreSQL DB Tomcat 6.0 Hibernate 3 Flex Data Services 2.0.1 The final application should work like this: A user opens up the Flex client. The Flex client uses Flex ... |
63. Possible Memory Leak : suspected object QueryPlanCache forum.hibernate.orgHi. I have a J2EE application, running on WAS 5.1 (JVM 1.4.2). I have a memory leak (JVM as a XMX of 1,5 Go) Heap dump analysis gives the following result : The leak suspect is a class of type: com/mypackage/dao/DAOFactory The leak suspect size is: 1,142MB The object the leak suspect is holding that contains leaking objects is a class ... |
64. hibernate out of memory in instantiation forum.hibernate.orgThe problem has not a simple solution nobody on the hibernate team showed up telling anything about the hibernate problem. because hibernate HAVE a problem in respect of memory usage, and just ignoring it won't move hibernate any further. the "solution" for us was to build a jboss dev machine with a 64bit os, 64bit jvm and 4g of ram, all ... |
65. JPA memory heap problem forum.hibernate.orgHello, I am using JSF and JPA for my web based project ( No EJB and No Spring frame work) . I am facing the problems related to memory usage due to the persistence. Project Requirement : I need to display the web pages with data from the database tables. Where I have some operations like adding new record and editing ... |
66. Hibernate Out of Memory forum.hibernate.orgHi, I'm using hibernate, it works very well but I think I'm doing something wrong, but it's very slow. While I'm using the memory is always increasing until I have an out of memory problem. I really don't know why it occurs. I have the follow singleton: Code: public class HibernateSessionCreator { public HibernateSessionCreator() ... |
67. Memory leaks in HqlBaseLexer forum.hibernate.org |
68. Memory leaks in HqlBaseLexer forum.hibernate.org |
69. Out of Memory Error. forum.hibernate.orgHi, I am implemention my DB using JPA. I have around 20 methods in my DAO class to get/insert/update/delete records from Tables. Please find my sample implementation below. ************************************** createEntityManager("dbSettlementReporting"); ArrayList listProcess = new ArrayList(); try { String sqlProcess = "select processCode, longDesc from ProcessCode"; listProcess = (ArrayList) em.createNativeQuery(sqlProcess, ProcessBean.class).getResultList(); }catch (RuntimeException e) { e.printStackTrace(); log.error("Fatel Error Occurred - Please contact ... |
70. My memory ,,, Hibernate the Cause... forum.hibernate.orgtwain007 wrote: I gave the was 1GB ,The Application should wast so many memory,it should be half of them at most! When i executed the application ,the memory just speed up ,without any idea to drop down! Read more about IBM JDK's memory management and garbage collector. It's a long story but the hansel and gretel version of it is that ... |
71. Any help for memory leak? forum.hibernate.org |
72. Unload hibernate classes from memory forum.hibernate.orgDear Hibernate Gurus, I write desktop standalone application and due of tight memory requirements I want to unload hibernate and related classes from memory when they are not necessary(application IDLE period). I isolate all DB classes into separate class loader, split into several independent jar files, and create hibernate instances dynamically. But after I release everything(or I think that everything) hibernate ... |
73. Too many JTASessionContext objects in Memory forum.hibernate.orgHello I am using 3.2.6.ga & deployed in Websphere 6.0. I am using |
74. Too many JTASessionContext objects in Memory forum.hibernate.org |
75. Memory Leak forum.hibernate.orgHi all I have this problem: after certain time of using a web app, it exhausts the heap. I profiled it and it shows two classes which instances are consuming most of the heap space: - java.util.HashMap$Entry - java.lang.reflect.Method Inspecting the GC path of the first I found that CGLIB proxies are holding the references of most of them. (*) I ... |
76. Hipotetical question - store ALL data in memory object model forum.hibernate.org |
77. Memory is running out forum.hibernate.orgHibernate version: 3.3.1 GA In our application we have a task, which loads large amount of data from database, then calculates something. After that small resulting records are assembled and persisted to database. Their amount can be huge. Thus we use a second-level cache and short sessions with short transactions, which generate about 50K of such records. Such task can be ... |
78. Reducing memory usage or how to get not all results at once forum.hibernate.orgHello, I have following problem that I couldn't solve by google or testing yet: I have to process all entities from a relationship. The number of entities is around 15.000 and I have to go through all of them. The used memory after loading them rises by about 100MB and it is foreseeable that this is a risk of an OutOfMemory ... |
79. Minimum memory footprint and use cases for Hibernate forum.hibernate.orgI have done some work with Hibernate but am trying to get a sense of how well it would fit for a specific use case. I am looking to host 100-150 separate low volume projects (each with their own independent database) on a simple Linux dedicated server with 2Gb RAM. Right now they are running on a system with a home ... |
80. Memory leak of application using hibernate forum.hibernate.orgHello everybody, I am developing an application using Jboss and Hibernate 3.1, and I have lots of problems because my system JVM heap gets full after some minutes of loadtests. I have profiled the memory of jboss and I have realized that class org.hibernate.hql.QueryTranslator is instantiating, and instances of the class are never deallocaed from memory. Do you have any idea, ... |
81. Hibernate replicate in memory object forum.hibernate.orgHi, I have a Parent - Child object relation.Child have a reference to the Parent object. The scenario is like this I have loaded the Parent object and came out of hibernate session (I have used sessionfactory.getCurrentSession()). Now the Parent object is in my application memory( HttpSession ). In another hibernate session (again using sessionFactory.getCurrentSession , i believe this time it ... |
82. JPA Memory Profiling forums.oracle.comHi there! I am having an ejb application with jpa/eclipselink and a huge data loading process and I have to do an estimation for necessary heap space. First experiments have shown, that the overhead produced by the persistence provider's cache etc.is far higher than expected. Are there any reliable informations or methods for the estimation of the overhead? Or is there ... |