Cool ;) We had the same problem with syncronization in the past. After we turned it off the problems went away. So because we couldn't reproduce it and the error occured "only" 2-3 time per week we decided to live without syncronization. Now I'm very interested in the testing results of the other users.
Lothar > -----Ursprüngliche Nachricht----- > Von: [email protected] > Gesendet: 26.09.06 17:34:38 > An: [email protected] > Betreff: Re: AW: NullPointerException when using shared cache > Cool. I'll check it to trunk and eventually - 2.0 branch. > > Thanks > Andrus > > > On Sep 26, 2006, at 11:23 AM, Ayhan Kondoz wrote: > > Hello Andrus, > > > > the new patch seems to be working. It has been 24 hours now that > > the new patched jar file is beeing used in my productive system and > > no NullPointerException. I think the bug can be marked resolved and > > closed. > > > > Thanx > > Ayhan Kondoz > > > >> -----Ursprüngliche Nachricht----- > >> Von: Ayhan Kondoz [mailto:[EMAIL PROTECTED] > >> Gesendet: Montag, 25. September 2006 17:13 > >> An: [email protected] > >> Betreff: AW: NullPointerException when using shared cache > >> > >> Hello Andrus, > >> > >> i installed the new jar in out production system and everything > >> seems to > >> work fine so far. It's online for 6 hours and the error didn't > >> happen. > >> Before the patch it took up to 5-6 hours until the error occurred the > >> first time. > >> > >> I will report again tomorrow. > >> > >> Thanx so far > >> > >> Ayhan Kondoz > >> > >>> -----Ursprüngliche Nachricht----- > >>> Von: Andrus Adamchik [mailto:[EMAIL PROTECTED] > >>> Gesendet: Montag, 25. September 2006 02:32 > >>> An: [email protected] > >>> Betreff: Re: NullPointerException when using shared cache > >>> > >>> Ayhan, Wolfgang and others who have this synchronization issue - I > >>> posted a patched version of 1.2.1 Cayenne: > >>> > >>> http://dev.objectstyle.org/~andrus/cayenne-1.2.1-CAY-565- > >>> patched.tar.gz > >>> > >>> I would appreciate very much if you could test it in your > >>> environment > >>> and let me know whether it fixes the problem. I posted more comments > >>> and the exact patches that were applies on Jira: > >>> > >>> http://issues.apache.org/cayenne/browse/CAY-565 > >>> > >>> Thanks > >>> Andrus > >>> > >>> > >>> On Sep 12, 2006, at 9:35 AM, Andrus Adamchik wrote: > >>> > >>>> CAY-565 was closed as "Can not reproduce", so there was no fix. I > >>>> reopened this issue, bumping the priority to "Critical". I will add > >>>> synchronization, even though I can't test it. > >>>> > >>>> Andrus > >>>> > >>>> > >>>> On Sep 12, 2006, at 5:51 AM, Ayhan Kondoz wrote: > >>>>> Hello, > >>>>> > >>>>> > >>>>> > >>>>> I am getting NullPointerExceptions when I am trying to use the > >>>>> shared caching feature of cayenne. > >>>>> > >>>>> > >>>>> > >>>>> I have 3 servers. Each server has it's own tomcat / axis > >>>>> webservice and I have an avarage access of about 4 - 5 connections > >>>>> per second. Each connection results in about 3 - 4 select queries > >>>>> and about 20% of the connections result in an additional 2 - 3 > >>>>> insert / update queries. So the servers are working at pretty > >>>>> heavy load. > >>>>> > >>>>> > >>>>> > >>>>> Yesterday I implemented the usage of cayenne's (remote) shared > >>>>> caching feature using JavaGroups and at first everything seemed to > >>>>> work just fine. But after about 1 hour, one of the servers started > >>>>> to produce NullPointerExceptions on every connection. i found this > >>>>> bug ( http://issues.apache.org/cayenne/browse/CAY-565 ) which > >>>>> seems to address my problem but the status is resolved?! > >>>>> > >>>>> > >>>>> > >>>>> i tried cayenne 1.2 and 1.2B1 and in both cases got this > >>>>> exceptions but only if shared caching is activated. When I > >>>>> deactivate caching everything seems to work fine again. > >>>>> > >>>>> It seems that there is a problem with the syncronization. This > >>>>> error occursed when under heavy load and a lot of threads are > >>>>> active at the same time. But if it is really a syncronization > >>>>> problem the same error could occure on every system (even if much > >>>>> more unlikely) even if not under heavy load. > >>>>> > >>>>> > >>>>> > >>>>> Cheers > >>>>> > >>>>> Ayhan Kondoz > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> The exception when using common-collections 3.2 > >>>>> > >>>>> > >>>>> > >>>>> [11.09.06 21:30:32] (ERROR): Entry.next=null, data[removeIndex] > >>>>> =<ObjectId:Customer, > >>>>> id=534080>[EMAIL PROTECTED] > >>>>> {suspended=false, login=christian.hantke1, rec_create=Tue May 02 > >>>>> 00:00:00 CEST 2006, rec_change=Tue May 02 20:18:34 CEST 2006, > >>>>> last_updated=Mon Sep 11 21:28:26 CEST 2006, cid=709779451, > >>>>> id=534080, mandant_id=3}, version=-9223372036854422785, > >>>>> replaces=-9223372036854775808] previous=<ObjectId:Customer, > >>>>> d=534080>[EMAIL PROTECTED] > >>>>> {suspended=false, login=christian.hantke1, rec_create=Tue May 02 > >>>>> 00:00:00 CEST 2006, rec_change=Tue May 02 20:18:34 CEST 2006, > >>>>> last_updated=Mon Sep 11 21:28:26 CEST 2006, cid=709779451, > >>>>> id=534080, mandant_id=3}, version=-9223372036854422785, > >>>>> replaces=-9223372036854775808] key=<Ob > >>>>> > >>>>> jectId:Customer, id=364956> > >>>>> [EMAIL PROTECTED] > >>>>> {suspended=false, login=nadda89, rec_create=Thu Mar 30 00:00:00 > >>>>> CEST 2006, rec_change=Thu Mar 30 22:19:00 CEST 2006, > >>>>> last_updated=Fri Aug 04 16:09:35 CEST 2006, cid=705229711, > >>>>> id=364956, mandant_id=3}, version=-9223372036854407476, > >>>>> replaces=-9223372036854775808] size=10000 maxSize=10000 Please > >>>>> check that your keys are immutable, and that you have used > >>>>> synchronization properly. If so, then please report this to > >>>>> [email protected] as a bug. > >>>>> > >>>>> java.lang.IllegalStateException: Entry.next=null, data > >>>>> [removeIndex] > >>>>> =<ObjectId:Customer, > >>>>> id=534080>[EMAIL PROTECTED] > >>>>> {suspended=false, login=christian.hantke1, rec_create=Tue May 02 > >>>>> 00:00:00 CEST 2006, rec_change=Tue May 02 20:18:34 CEST 2006, > >>>>> last_updated=Mon Sep 11 21:28:26 CEST 2006, cid=709779451, > >>>>> id=534080, mandant_id=3}, version=-9223372036854422785, > >>>>> replaces=-9223372036854775808] previous=<ObjectId:Customer, > >>>>> id=534080>[EMAIL PROTECTED] > >>>>> {suspended=false, login=christian.hantke1, rec_create=Tue May 02 > >>>>> 00:00:00 CEST 20 06, rec_change=Tue May 02 20:18:34 CEST 2006, > >>>>> last_updated=Mon Sep 11 21:28:26 CEST 2006, cid=709779451, > >>>>> id=534080, mandant_id=3}, version=-9223372036854422785, > >>>>> replaces=-9223372036854775808] key=<ObjectId:Customer, id=364956> > >>>>> [EMAIL PROTECTED] > >>>>> {suspended=false, login=nadda89, rec_create=Thu Mar 30 00:00:00 > >>>>> CEST 2006, rec_change=Thu Mar 30 22:19:00 CEST 2006, > >>>>> last_updated=Fri Aug 04 16:09:35 CEST 2006, cid=705229711, > >>>>> id=364956, mandant_id=3}, version=-9223372036854407476, > >>>>> replaces=-9223372036854775808] size=10000 maxSize=10000 Please > >>>>> check that your keys are immutable, and that you have used > >>>>> synchronization properly. If so, then please report this to > >>>>> [email protected] as a bug. > >>>>> > >>>>> at org.apache.commons.collections.map.LRUMap.reuseMapping > >>>>> (LRUMap.java:300) > >>>>> > >>>>> at org.apache.commons.collections.map.LRUMap.addMapping > >>>>> (LRUMap.java:266) > >>>>> > >>>>> at > >>>>> org.apache.commons.collections.map.AbstractHashedMap.put > >>>>> (AbstractHashedMap.java:283) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataRowStore.processUpdatedSnapshot > >>>>> s > >>>>> (DataRowStore.java:537) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataRowStore.processSnapshotChanges > >>>>> (DataRowStore.java:496) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.ObjectStore.snapshotsUpdatedForObje > >>>>> cts > >>>>> (ObjectStore.java:559) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.ObjectResolver.objectsFromDataRows > >>>>> (ObjectResolver.java:162) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.ObjectResolver.synchronizedObjectsF > >>>>> rom > >>>>> DataRows(ObjectResolver.java:137) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataDomainQueryAction.interceptObje > >>>>> ctC > >>>>> onversion(DataDomainQueryAction.java:363) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataDomainQueryAction.execute > >>>>> (DataDomainQueryAction.java:151) > >>>>> > >>>>> at org.objectstyle.cayenne.access.DataDomain.onQuery > >>>>> (DataDomain.java:715) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.util.ObjectContextQueryAction.runQuery > >>>>> (ObjectContextQueryAction.java:249) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataContextQueryAction.execute > >>>>> (DataContextQueryAction.java:90) > >>>>> > >>>>> at org.objectstyle.cayenne.access.DataContext.onQuery > >>>>> (DataContext.java:1320) > >>>>> > >>>>> at org.objectstyle.cayenne.access.DataContext.performQuery > >>>>> (DataContext.java:1309) > >>>>> > >>>>> > >>>>> > >>>>> The exception when using common-collections 3.1 > >>>>> > >>>>> > >>>>> > >>>>> [11.09.06 15:29:13] (ERROR): > >>>>> > >>>>> java.lang.NullPointerException > >>>>> > >>>>> at org.apache.commons.collections.map.LRUMap.reuseMapping > >>>>> (LRUMap.java:272) > >>>>> > >>>>> at org.apache.commons.collections.map.LRUMap.addMapping > >>>>> (LRUMap.java:243) > >>>>> > >>>>> at > >>>>> org.apache.commons.collections.map.AbstractHashedMap.put > >>>>> (AbstractHashedMap.java:282) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataRowStore.processUpdatedSnapshot > >>>>> s > >>>>> (DataRowStore.java:612) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataRowStore.processSnapshotChanges > >>>>> (DataRowStore.java:571) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataRowStore.snapshotsUpdatedForObj > >>>>> ect > >>>>> s(DataRowStore.java:313) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.ObjectResolver.objectsFromDataRows > >>>>> (ObjectResolver.java:159) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.ObjectResolver.synchronizedObjectsF > >>>>> rom > >>>>> DataRows(ObjectResolver.java:134) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataDomainQueryAction.interceptObje > >>>>> ctC > >>>>> onversion(DataDomainQueryAction.java:373) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataDomainQueryAction.execute > >>>>> (DataDomainQueryAction.java:151) > >>>>> > >>>>> at org.objectstyle.cayenne.access.DataDomain.onQuery > >>>>> (DataDomain.java:766) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.util.ObjectContextQueryAction.runQuery > >>>>> (ObjectContextQueryAction.java:253) > >>>>> > >>>>> at > >>>>> org.objectstyle.cayenne.access.DataContextQueryAction.execute > >>>>> (DataContextQueryAction.java:90) > >>>>> > >>>>> at org.objectstyle.cayenne.access.DataContext.onQuery > >>>>> (DataContext.java:1422) > >>>>> > >>>>> at org.objectstyle.cayenne.access.DataContext.performQuery > >>>>> (DataContext.java:1411) > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> Ayhan Kondoz > >>>>> > >>>>> > >>>>> > >>>>> Software-Entwicklung > >>>>> > >>>>> > >>>>> > >>>>> ------------------------------------------------------------------ > >>>>> --- > >>>>> ------------- > >>>>> > >>>>> Telefon: +49 (0) 40 513 06 616 > >>>>> > >>>>> Telefax: +49 (0) 40 513 06 998 616 > >>>>> > >>>>> E-Mail: [EMAIL PROTECTED] > >>>>> <mailto:[EMAIL PROTECTED]> > >>>>> > >>>>> Website: http://www.freenet.de <http://www.freenet.de/> ; http:// > >>>>> www.freenet-ag.de <http://www.freenet-ag.de/> > >>>>> > >>>>> ------------------------------------------------------------------ > >>>>> --- > >>>>> ------------- > >>>>> > >>>>> freenet.de AG > >>>>> > >>>>> Deelbögenkamp 4c > >>>>> > >>>>> 22297 Hamburg > >>>>> > >>>>> ------------------------------------------------------------------ > >>>>> --- > >>>>> ------------- > >>>>> > >>>>> Vorsitzender des Aufsichtsrates: Prof. Dr. Helmut Thoma > >>>>> > >>>>> Vorstand: Eckhard Spoerr (Vors.), > >>>>> Axel Krieger, Stephan Esch, Eric Berger > >>>>> > >>>>> Amtsgericht Hamburg HRB 74048 > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> Diese Information ist ausschließlich für die adressierte Person > >>>>> oder Organisation bestimmt und könnte vertrauliches und/oder > >>>>> privilegiertes Material enthalten. Personen oder Organisationen, > >>>>> für die diese Information nicht bestimmt ist, ist es nicht > >>>>> gestattet, diese zu lesen, erneut zu übertragen, zu verbreiten, > >>>>> anderweitig zu verwenden oder sich durch sie veranlasst zu sehen, > >>>>> Maßnahmen irgendeiner Art zu ergreifen. Sollten Sie diese > >>>>> Nachricht irrtümlich erhalten haben, bitten wir Sie, sich mit dem > >>>>> Absender in Verbindung zu setzen und das Material von Ihrem > >>>>> Computer zu löschen. > >>>>> > >>>>> > >>>>> > >>>>> The information transmitted is intended only for the person or > >>>>> entity to which it is addressed and may contain confidential and/ > >>>>> or privileged material. Any review, retransmission, dissemination > >>>>> or other use of, or taking of any action in reliance upon, this > >>>>> information by persons or entities other than the intended > >>>>> recipient is prohibited. If you received this in error, please > >>>>> contact the sender and delete the material from any computer. > >>>>> > >>>>> > >>>>> > >>>> > >>>> > > > > >
