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James Calfee commented on DERBY-2475: ------------------------------------- Basically the same thing has happened to me twice now. I'm using 10.2.2.0 on Sun's Java 1.5 and Ubuntu. I have a single character column that got hit both times. I can select all the data from other columns just fine. This is occurs using the embedded driver with only one parameter create=true. All settings are out-of-the-box. I have added some code recently to purge a cache in some another table which may have aggravated this bug. It is very irregular and I'm having to restore backups and reset a sequence to recover from it ;-( .. I only wish I knew which (if an) older version of Derby is free from this error. I did see a post back in 2005 about this so I'm not so sure if downgrading could help (or perhaps that was really a disk error). It this case, does not look like a disk error since the corruption is so confined and happened in the exact same place on both occasions. I have been doing routine table compression successfully for some time now. Please let me know if I can help. ERROR XSDG2: Invalid checksum on Page Page(679,Container(0, 19472)), expected=232,875,440, on-disk version=4,193,292,366, page dump follows: Hex dump: 00000000: 0075 0000 0001 0000 0000 0000 0004 0003 .u.............. 00000010: 0000 000a 0000 0000 0000 0000 0000 0000 ................ 00000020: 0000 0000 0001 0000 0000 0000 0000 0000 ................ 00000030: 0000 0000 0000 0000 0000 0000 0406 0008 ................ 00000040: 0004 0000 3e72 002a 0028 6338 3765 3239 .....r....c87e29 00000050: 3936 3630 6137 3962 6433 6565 3737 6465 9660a79bd3ee77de ... snip ... Lots of zeros omitted 00007fd0: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 00007fe0: 0000 0000 0000 10b1 486e 0000 0764 094d .......ᄆHn...d.M 00007ff0: 0000 003c 0728 0000 0000 0000 f9f0 904e ..............ミN at org.apache.derby.iapi.error.StandardException.newException(Unknown Source) at org.apache.derby.impl.store.raw.data.StoredPage.validateChecksum(Unknown Source) at org.apache.derby.impl.store.raw.data.StoredPage.initFromData(Unknown Source) at org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(Unknown Source) at org.apache.derby.impl.services.cache.CachedItem.takeOnIdentity(Unknown Source) at org.apache.derby.impl.services.cache.Clock.addEntry(Unknown Source) at org.apache.derby.impl.services.cache.Clock.find(Unknown Source) at org.apache.derby.impl.store.raw.data.FileContainer.getUserPage(Unknown Source) at org.apache.derby.impl.store.raw.data.FileContainer.getNextHeadPage(Unknown Source) at org.apache.derby.impl.store.raw.data.BaseContainer.getNextPage(Unknown Source) at org.apache.derby.impl.store.raw.data.BaseContainerHandle.getNextPage(Unknown Source) at org.apache.derby.impl.store.access.conglomerate.GenericScanController.positionAtNextPage(Unknown Source) at org.apache.derby.impl.store.access.conglomerate.GenericScanController.fetchRows(Unknown Source) at org.apache.derby.impl.store.access.heap.HeapScan.fetchNextGroup(Unknown Source) at org.apache.derby.impl.sql.execute.BulkTableScanResultSet.reloadArray(Unknown Source) at org.apache.derby.impl.sql.execute.BulkTableScanResultSet.getNextRowCore(Unknown Source) at org.apache.derby.impl.sql.execute.ProjectRestrictResultSet.getNextRowCore(Unknown Source) at org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl.getNextRow(Unknown Source) at org.apache.derby.impl.jdbc.EmbedResultSet.movePosition(Unknown Source) at org.apache.derby.impl.jdbc.EmbedResultSet.next(Unknown Source) at net.spamcomplaint.dao.JunkMailDAO.getJunkIds(JunkMailDAO.java:337) at net.spamcomplaint.swing.MessagePanel.loadMessages(MessagePanel.java:136) at net.spamcomplaint.swing.MessagePanel.<init>(MessagePanel.java:92) at net.spamcomplaint.swing.ApplicationPanel.<init>(ApplicationPanel.java:49) at net.spamcomplaint.swing.ApplicationFrame.createAndShowGUI(ApplicationFrame.java:35) at net.spamcomplaint.swing.ApplicationFrame.<init>(ApplicationFrame.java:20) at net.spamcomplaint.App.main(App.java:301) Shutting down Derby... > invalid checksum > ---------------- > > Key: DERBY-2475 > URL: https://issues.apache.org/jira/browse/DERBY-2475 > Project: Derby > Issue Type: Bug > Components: Store > Affects Versions: 10.2.2.0 > Environment: windows xp, notebook, possibly broken hard drive! > Reporter: Fabian Merki > Priority: Critical > Attachments: defekt2.zip > > > one of my customers gets on a notebook the following exception: > ---------------------------------------------------------------- > 2007-03-17 09:01:53.042 GMT: > Booting Derby version The Apache Software Foundation - Apache Derby - > 10.2.2.0 - (485682): instance c013800d-0111-5f21-a736-000002cd2118 > on database directory C:\Programme\merkisoft\kursverwaltung\database\kurs > Database Class Loader started - derby.database.classpath='' > ------------ BEGIN SHUTDOWN ERROR STACK ------------- > ERROR XSDG2: Invalid checksum on Page Page(28,Container(0, 1248)), > expected=3'455'715'557, on-disk version=3'357'396'866, page dump follows: Hex > dump > > hex dump => see attachment > > i'm using the embedded version together with hibernate on the notebook. > when i transfer the db to my pc and execute select * from <all tables> i get > no errors at all. > we checked the disk about 3 times (with error correction): no result and it > still happens. > when i create a new db on the notebook it happens after a while again. > the db is about 35 mb. i could put it somewhere for developers (please email > me). > > i've seen someone else having a similar problem but i couldn't find a > solution yet. > > any help is very welcome! > > ------------------ > hi bryan > thanks for the quick reply! i tried to answer your questions. i hope it > helps. > > Does this happen for this customer over and over? > > Or did it happen only once? > yes only that, but it happend 6 times. > > Is the customer able to provoke the error on demand? > i tried without success but i keep testing it. > > Can you relate the exception to any particular action that the customer > > is taking in your application? > till now no. > > If it has happened multiple times, is it always the same page on > > the same container? Or is the location different each time? > we installed the app serveral times and i think the following lines are per > installation (so per installation it happend on the same page): > org.hibernate.util.JDBCExceptionReporter - Invalid checksum on Page > Page(28,Container(0, 1248)), expected=3'455'715'557, on-disk > version=3'357'396'866, page dump follows: Hex dump: > org.hibernate.util.JDBCExceptionReporter - Invalid checksum on Page > Page(461,Container(0, 1248)), expected=3'908'279'257, on-disk > version=137'782'528, page dump follows: Hex dump: > org.hibernate.util.JDBCExceptionReporter - Invalid checksum on Page > Page(482,Container(0, 1248)), expected=4'113'528'744, on-disk > version=44'301'386, page dump follows: Hex dump: > org.hibernate.util.JDBCExceptionReporter - Invalid checksum on Page > Page(702,Container(0, 944)), expected=2'598'292'545, on-disk > version=3'174'535'138, page dump follows: Hex dump: > org.hibernate.util.JDBCExceptionReporter - Invalid checksum on Page > Page(2767,Container(0, 944)), expected=2'067'623'629, on-disk > version=2'180'532'620, page dump follows: Hex dump: > org.hibernate.util.JDBCExceptionReporter - Invalid checksum on Page > Page(99,Container(0, 1248)), expected=242'030'294, on-disk > version=3'389'026'885, page dump follows: Hex dump: > > When the exception happens, are there any follow-on symptoms? > yes, my app crashes ;-(( > i'm not shure how well i reinit the db connection. > > Or did > the application seem to behave properly after the user shut it > > down and restarted it? Can the customer later access the data properly > > on their notebook? Or do you have to move the files to another machine > > in order to access the data? > restarts did not help as far as i know. but but when i copied it onto my > harddrive it was ok. > > thanks, > thank you! > fabian > thanks > fabian -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.