[
https://issues.apache.org/jira/browse/DERBY-5234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13273496#comment-13273496
]
Saurabh Singhi commented on DERBY-5234:
---------------------------------------
Hi Rick,
I built version 10.8.2.3, but unfortunately, I'm still getting the same errors.
Here's a dump of the same (note that the container exception occurs a little
deeper down the stack trace) :-
*****************************************************************************************************************************************************************************
1 May 2012 11:29 DataDictionary.deleteHRData = deleteCmd = DELETE FROM
APP.CPU_059222_HR WHERE SampleTimestamp <= ?
11 May 2012 11:29 DataDictionary.deleteHRData = Delete executed with Timestamp
= Thu May 10 11:29:09 PDT 2012
11 May 2012 11:29 DataDictionary.reclaimDiskSpace = compressCmd:->call
SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE('APP', 'CPU_059222_HR',0,0, 1)
11 May 2012 11:29 DataDictionary.reclaimDiskSpace = compressSqlStmt executed
for Table:->CPU_059222_HR
11 May 2012 11:29 DataDictionary.deleteHRData = Hourly retention = 24
11 May 2012 11:29 DataDictionary.deleteHRData = deleteCmd = DELETE FROM
APP.PROCESS_059222_HR WHERE SampleTimestamp <= ?
11 May 2012 11:29 DataDictionary.deleteHRData = deleteHRData: SQL error - Java
exception: ': java.lang.NullPointerException'.
11 May 2012 11:29 SchemaDAO.tableExists = Java exception: ':
java.lang.NullPointerException'.
java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:98)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
at org.apache.derby.impl.jdbc.Util.javaException(Util.java:299)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:436)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:353)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2290)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:634)
at
org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:73)
at
org.apache.derby.impl.jdbc.EmbedConnection40.<init>(EmbedConnection40.java:51)
at
org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Driver40.java:70)
at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:248)
at
org.apache.derby.jdbc.AutoloadedDriver.connect(AutoloadedDriver.java:144)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at
com.idelji.operations.iasset.plugin.imon.dao.SchemaDAO.tableExists(SchemaDAO.java:59)
at
com.idelji.operations.iasset.plugin.imon.dao.DataDictionary.deleteHRData(DataDictionary.java:464)
at
com.idelji.operations.iasset.plugin.imon.service.CleanUpTask.run(CleanUpTask.java:54)
Caused by: java.sql.SQLException: Java exception: ':
java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:122)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71)
... 16 more
Caused by: java.lang.NullPointerException
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:659)
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:589)
at
org.apache.derby.impl.store.raw.xact.Xact.openContainer(Xact.java:1316)
at
org.apache.derby.impl.store.access.conglomerate.OpenConglomerate.init(OpenConglomerate.java:910)
at org.apache.derby.impl.store.access.heap.Heap.open(Heap.java:689)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:476)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:1308)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndexMinion(DataDictionaryImpl.java:9271)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(DataDictionaryImpl.java:9229)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(DataDictionaryImpl.java:1722)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(DataDictionaryImpl.java:1589)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initDefaultSchemaDescriptor(GenericLanguageConnectionContext.java:425)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initialize(GenericLanguageConnectionContext.java:401)
at
org.apache.derby.impl.db.BasicDatabase.setupConnection(BasicDatabase.java:295)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.startTransaction(TransactionResourceImpl.java:189)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserIsNotARole(EmbedConnection.java:1251)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserCredentials(EmbedConnection.java:1215)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:422)
... 10 more
11 May 2012 11:29 SchemaDAO.tableExists = Java exception: ':
java.lang.NullPointerException'.
java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:98)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
at org.apache.derby.impl.jdbc.Util.javaException(Util.java:299)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:436)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:353)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2290)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:634)
at
org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:73)
at
org.apache.derby.impl.jdbc.EmbedConnection40.<init>(EmbedConnection40.java:51)
at
org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Driver40.java:70)
at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:248)
at
org.apache.derby.jdbc.AutoloadedDriver.connect(AutoloadedDriver.java:144)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at
com.idelji.operations.iasset.plugin.imon.dao.SchemaDAO.tableExists(SchemaDAO.java:59)
at
com.idelji.operations.iasset.plugin.imon.dao.DataDictionary.deleteHRData(DataDictionary.java:464)
at
com.idelji.operations.iasset.plugin.imon.service.CleanUpTask.run(CleanUpTask.java:54)
Caused by: java.sql.SQLException: Java exception: ':
java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:122)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71)
... 16 more
Caused by: java.lang.NullPointerException
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:659)
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:589)
at
org.apache.derby.impl.store.raw.xact.Xact.openContainer(Xact.java:1316)
at
org.apache.derby.impl.store.access.conglomerate.OpenConglomerate.init(OpenConglomerate.java:910)
at org.apache.derby.impl.store.access.heap.Heap.open(Heap.java:689)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:476)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:1308)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndexMinion(DataDictionaryImpl.java:9271)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(DataDictionaryImpl.java:9229)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(DataDictionaryImpl.java:1722)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(DataDictionaryImpl.java:1589)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initDefaultSchemaDescriptor(GenericLanguageConnectionContext.java:425)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initialize(GenericLanguageConnectionContext.java:401)
at
org.apache.derby.impl.db.BasicDatabase.setupConnection(BasicDatabase.java:295)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.startTransaction(TransactionResourceImpl.java:189)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserIsNotARole(EmbedConnection.java:1251)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserCredentials(EmbedConnection.java:1215)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:422)
... 10 more
11 May 2012 11:29 SchemaDAO.tableExists = Java exception: ':
java.lang.NullPointerException'.
java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:98)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
at org.apache.derby.impl.jdbc.Util.javaException(Util.java:299)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:436)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:353)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2290)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:634)
at
org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:73)
at
org.apache.derby.impl.jdbc.EmbedConnection40.<init>(EmbedConnection40.java:51)
at
org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Driver40.java:70)
at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:248)
at
org.apache.derby.jdbc.AutoloadedDriver.connect(AutoloadedDriver.java:144)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at
com.idelji.operations.iasset.plugin.imon.dao.SchemaDAO.tableExists(SchemaDAO.java:59)
at
com.idelji.operations.iasset.plugin.imon.dao.DataDictionary.deleteHRData(DataDictionary.java:464)
at
com.idelji.operations.iasset.plugin.imon.service.CleanUpTask.run(CleanUpTask.java:54)
Caused by: java.sql.SQLException: Java exception: ':
java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:122)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71)
... 16 more
Caused by: java.lang.NullPointerException
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:659)
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:589)
at
org.apache.derby.impl.store.raw.xact.Xact.openContainer(Xact.java:1316)
at
org.apache.derby.impl.store.access.conglomerate.OpenConglomerate.init(OpenConglomerate.java:910)
at org.apache.derby.impl.store.access.heap.Heap.open(Heap.java:689)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:476)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:1308)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndexMinion(DataDictionaryImpl.java:9271)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(DataDictionaryImpl.java:9229)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(DataDictionaryImpl.java:1722)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(DataDictionaryImpl.java:1589)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initDefaultSchemaDescriptor(GenericLanguageConnectionContext.java:425)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initialize(GenericLanguageConnectionContext.java:401)
at
org.apache.derby.impl.db.BasicDatabase.setupConnection(BasicDatabase.java:295)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.startTransaction(TransactionResourceImpl.java:189)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserIsNotARole(EmbedConnection.java:1251)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserCredentials(EmbedConnection.java:1215)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:422)
... 10 more
11 May 2012 11:29 SchemaDAO.tableExists = Java exception: ':
java.lang.NullPointerException'.
java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:98)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
at org.apache.derby.impl.jdbc.Util.javaException(Util.java:299)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:436)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:353)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2290)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:634)
at
org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:73)
at
org.apache.derby.impl.jdbc.EmbedConnection40.<init>(EmbedConnection40.java:51)
at
org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Driver40.java:70)
at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:248)
at
org.apache.derby.jdbc.AutoloadedDriver.connect(AutoloadedDriver.java:144)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at
com.idelji.operations.iasset.plugin.imon.dao.SchemaDAO.tableExists(SchemaDAO.java:59)
at
com.idelji.operations.iasset.plugin.imon.dao.DataDictionary.deleteHRData(DataDictionary.java:464)
at
com.idelji.operations.iasset.plugin.imon.service.CleanUpTask.run(CleanUpTask.java:54)
Caused by: java.sql.SQLException: Java exception: ':
java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:122)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71)
... 16 more
Caused by: java.lang.NullPointerException
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:659)
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:589)
at
org.apache.derby.impl.store.raw.xact.Xact.openContainer(Xact.java:1316)
at
org.apache.derby.impl.store.access.conglomerate.OpenConglomerate.init(OpenConglomerate.java:910)
at org.apache.derby.impl.store.access.heap.Heap.open(Heap.java:689)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:476)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:1308)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndexMinion(DataDictionaryImpl.java:9271)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(DataDictionaryImpl.java:9229)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(DataDictionaryImpl.java:1722)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(DataDictionaryImpl.java:1589)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initDefaultSchemaDescriptor(GenericLanguageConnectionContext.java:425)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initialize(GenericLanguageConnectionContext.java:401)
at
org.apache.derby.impl.db.BasicDatabase.setupConnection(BasicDatabase.java:295)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.startTransaction(TransactionResourceImpl.java:189)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserIsNotARole(EmbedConnection.java:1251)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserCredentials(EmbedConnection.java:1215)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:422)
... 10 more
11 May 2012 11:29 SchemaDAO.tableExists = Java exception: ':
java.lang.NullPointerException'.
java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:98)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
at org.apache.derby.impl.jdbc.Util.javaException(Util.java:299)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:436)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:353)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2290)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:634)
at
org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:73)
at
org.apache.derby.impl.jdbc.EmbedConnection40.<init>(EmbedConnection40.java:51)
at
org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Driver40.java:70)
at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:248)
at
org.apache.derby.jdbc.AutoloadedDriver.connect(AutoloadedDriver.java:144)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at
com.idelji.operations.iasset.plugin.imon.dao.SchemaDAO.tableExists(SchemaDAO.java:59)
at
com.idelji.operations.iasset.plugin.imon.dao.DataDictionary.deleteHRData(DataDictionary.java:464)
at
com.idelji.operations.iasset.plugin.imon.service.CleanUpTask.run(CleanUpTask.java:54)
Caused by: java.sql.SQLException: Java exception: ':
java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:122)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71)
... 16 more
Caused by: java.lang.NullPointerException
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:659)
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:589)
at
org.apache.derby.impl.store.raw.xact.Xact.openContainer(Xact.java:1316)
at
org.apache.derby.impl.store.access.conglomerate.OpenConglomerate.init(OpenConglomerate.java:910)
at org.apache.derby.impl.store.access.heap.Heap.open(Heap.java:689)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:476)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:1308)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndexMinion(DataDictionaryImpl.java:9271)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(DataDictionaryImpl.java:9229)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(DataDictionaryImpl.java:1722)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(DataDictionaryImpl.java:1589)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initDefaultSchemaDescriptor(GenericLanguageConnectionContext.java:425)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initialize(GenericLanguageConnectionContext.java:401)
at
org.apache.derby.impl.db.BasicDatabase.setupConnection(BasicDatabase.java:295)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.startTransaction(TransactionResourceImpl.java:189)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserIsNotARole(EmbedConnection.java:1251)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserCredentials(EmbedConnection.java:1215)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:422)
... 10 more
11 May 2012 11:29 SchemaDAO.tableExists = Java exception: ':
java.lang.NullPointerException'.
java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:98)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
at org.apache.derby.impl.jdbc.Util.javaException(Util.java:299)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:436)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:353)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2290)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:634)
at
org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:73)
at
org.apache.derby.impl.jdbc.EmbedConnection40.<init>(EmbedConnection40.java:51)
at
org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Driver40.java:70)
at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:248)
at
org.apache.derby.jdbc.AutoloadedDriver.connect(AutoloadedDriver.java:144)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at
com.idelji.operations.iasset.plugin.imon.dao.SchemaDAO.tableExists(SchemaDAO.java:59)
at
com.idelji.operations.iasset.plugin.imon.dao.DataDictionary.deleteHRData(DataDictionary.java:464)
at
com.idelji.operations.iasset.plugin.imon.service.CleanUpTask.run(CleanUpTask.java:54)
Caused by: java.sql.SQLException: Java exception: ':
java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:122)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71)
... 16 more
Caused by: java.lang.NullPointerException
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:659)
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:589)
at
org.apache.derby.impl.store.raw.xact.Xact.openContainer(Xact.java:1316)
at
org.apache.derby.impl.store.access.conglomerate.OpenConglomerate.init(OpenConglomerate.java:910)
at org.apache.derby.impl.store.access.heap.Heap.open(Heap.java:689)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:476)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:1308)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndexMinion(DataDictionaryImpl.java:9271)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(DataDictionaryImpl.java:9229)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(DataDictionaryImpl.java:1722)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(DataDictionaryImpl.java:1589)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initDefaultSchemaDescriptor(GenericLanguageConnectionContext.java:425)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initialize(GenericLanguageConnectionContext.java:401)
at
org.apache.derby.impl.db.BasicDatabase.setupConnection(BasicDatabase.java:295)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.startTransaction(TransactionResourceImpl.java:189)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserIsNotARole(EmbedConnection.java:1251)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserCredentials(EmbedConnection.java:1215)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:422)
... 10 more
11 May 2012 11:29 SchemaDAO.tableExists = Java exception: ':
java.lang.NullPointerException'.
java.sql.SQLException: Java exception: ': java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:98)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
at org.apache.derby.impl.jdbc.Util.javaException(Util.java:299)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:436)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:353)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2290)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:634)
at
org.apache.derby.impl.jdbc.EmbedConnection30.<init>(EmbedConnection30.java:73)
at
org.apache.derby.impl.jdbc.EmbedConnection40.<init>(EmbedConnection40.java:51)
at
org.apache.derby.jdbc.Driver40.getNewEmbedConnection(Driver40.java:70)
at org.apache.derby.jdbc.InternalDriver.connect(InternalDriver.java:248)
at
org.apache.derby.jdbc.AutoloadedDriver.connect(AutoloadedDriver.java:144)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at
com.idelji.operations.iasset.plugin.imon.dao.SchemaDAO.tableExists(SchemaDAO.java:59)
at
com.idelji.operations.iasset.plugin.imon.dao.DataDictionary.deleteHRData(DataDictionary.java:464)
at
com.idelji.operations.iasset.plugin.imon.service.CleanUpTask.run(CleanUpTask.java:54)
Caused by: java.sql.SQLException: Java exception: ':
java.lang.NullPointerException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:122)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71)
... 16 more
Caused by: java.lang.NullPointerException
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:659)
at
org.apache.derby.impl.store.raw.data.BaseDataFileFactory.openContainer(BaseDataFileFactory.java:589)
at
org.apache.derby.impl.store.raw.xact.Xact.openContainer(Xact.java:1316)
at
org.apache.derby.impl.store.access.conglomerate.OpenConglomerate.init(OpenConglomerate.java:910)
at org.apache.derby.impl.store.access.heap.Heap.open(Heap.java:689)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:476)
at
org.apache.derby.impl.store.access.RAMTransaction.openConglomerate(RAMTransaction.java:1308)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndexMinion(DataDictionaryImpl.java:9271)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getDescriptorViaIndex(DataDictionaryImpl.java:9229)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.locateSchemaRow(DataDictionaryImpl.java:1722)
at
org.apache.derby.impl.sql.catalog.DataDictionaryImpl.getSchemaDescriptor(DataDictionaryImpl.java:1589)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initDefaultSchemaDescriptor(GenericLanguageConnectionContext.java:425)
at
org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext.initialize(GenericLanguageConnectionContext.java:401)
at
org.apache.derby.impl.db.BasicDatabase.setupConnection(BasicDatabase.java:295)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.startTransaction(TransactionResourceImpl.java:189)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserIsNotARole(EmbedConnection.java:1251)
at
org.apache.derby.impl.jdbc.EmbedConnection.checkUserCredentials(EmbedConnection.java:1215)
at
org.apache.derby.impl.jdbc.EmbedConnection.<init>(EmbedConnection.java:422)
... 10 more
11 May 2012 11:29 ProcessDAO.insertData = Page Page(41494,Container(0, 2128))
could not be read from disk.
java.sql.BatchUpdateException: Page Page(41494,Container(0, 2128)) could not be
read from disk.
at
org.apache.derby.impl.jdbc.EmbedStatement.executeBatch(EmbedStatement.java:1008)
at
com.idelji.operations.iasset.plugin.imon.dao.ProcessDAO.insertData(ProcessDAO.java:142)
at
com.idelji.operations.iasset.plugin.imon.comm.CPUProcessDataStoreWriter.onData(CPUProcessDataStoreWriter.java:56)
at
com.idelji.operations.iasset.plugin.imon.handler.CPUProcessDataHandler.gotData(CPUProcessDataHandler.java:205)
at
com.idelji.operations.ibase.core.comm.Connector.makeRequest(Connector.java:83)
at
com.idelji.operations.ibase.core.comm.EntityConnector.makeRequest(EntityConnector.java:36)
at
com.idelji.operations.iasset.plugin.imon.comm.CPUProcessCommunicator.run(CPUProcessCommunicator.java:98)
Caused by: java.sql.SQLException: Page Page(41494,Container(0, 2128)) could not
be read from disk.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:98)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
at org.apache.derby.impl.jdbc.Util.seeNextException(Util.java:278)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:431)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(TransactionResourceImpl.java:353)
at
org.apache.derby.impl.jdbc.EmbedConnection.handleException(EmbedConnection.java:2290)
at
org.apache.derby.impl.jdbc.ConnectionChild.handleException(ConnectionChild.java:82)
at
org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1334)
at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeBatchElement(EmbedPreparedStatement.java:1040)
at
org.apache.derby.impl.jdbc.EmbedStatement.executeBatch(EmbedStatement.java:984)
... 6 more
Caused by: java.sql.SQLException: Page Page(41494,Container(0, 2128)) could not
be read from disk.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:122)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71)
... 15 more
Caused by: java.sql.SQLException: Java exception: 'Reached end of file while
attempting to read a whole page.: java.io.EOFException'.
at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:45)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.wrapArgsForTransportAcrossDRDA(SQLExceptionFactory40.java:122)
at
org.apache.derby.impl.jdbc.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:71)
at org.apache.derby.impl.jdbc.Util.newEmbedSQLException(Util.java:142)
at org.apache.derby.impl.jdbc.Util.javaException(Util.java:299)
at
org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(TransactionResourceImpl.java:436)
... 13 more
Caused by: java.io.EOFException: Reached end of file while attempting to read a
whole page.
at
org.apache.derby.impl.store.raw.data.RAFContainer4.readFull(RAFContainer4.java:1165)
at
org.apache.derby.impl.store.raw.data.RAFContainer4.readPage0(RAFContainer4.java:429)
at
org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(RAFContainer4.java:369)
at
org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(RAFContainer4.java:263)
at
org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:673)
at
org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(CachedPage.java:193)
at
org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:295)
at
org.apache.derby.impl.store.raw.data.FileContainer.initPage(FileContainer.java:2431)
at
org.apache.derby.impl.store.raw.data.FileContainer.newPage(FileContainer.java:1879)
at
org.apache.derby.impl.store.raw.data.BaseContainer.addPage(BaseContainer.java:314)
at
org.apache.derby.impl.store.raw.data.BaseContainerHandle.addPage(BaseContainerHandle.java:183)
at
org.apache.derby.impl.store.access.heap.HeapController.doInsert(HeapController.java:302)
at
org.apache.derby.impl.store.access.heap.HeapController.insertAndFetchLocation(HeapController.java:599)
at
org.apache.derby.impl.sql.execute.RowChangerImpl.insertRow(RowChangerImpl.java:452)
at
org.apache.derby.impl.sql.execute.InsertResultSet.normalInsertCore(InsertResultSet.java:1028)
at
org.apache.derby.impl.sql.execute.InsertResultSet.open(InsertResultSet.java:505)
at
org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(GenericPreparedStatement.java:438)
at
org.apache.derby.impl.sql.GenericPreparedStatement.execute(GenericPreparedStatement.java:319)
at
org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(EmbedStatement.java:1242)
... 8 more
*****************************************************************************************************************************************************************************
I could give you my database, if you need to run your own tests against it.
Best,
Saurabh
> Unable to insert data into table. Failed due be "ERROR XSDG0: Page
> Page(51919,Container(0, 1104)) could not be read from disk."
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-5234
> URL: https://issues.apache.org/jira/browse/DERBY-5234
> Project: Derby
> Issue Type: Bug
> Components: Store
> Affects Versions: 10.5.3.0
> Environment: HP-UX 11iv2 in production environment with JDK1.6;
> Solaris 5/10 in test environment with JDK 1.6
> Reporter: Varma R
> Priority: Critical
> Labels: ERROR, XSDG0, apache, corruption, data, derby,
> derby_triage10_9
> Fix For: 10.8.2.3, 10.9.0.0
>
> Attachments: 5234_alloc.out, 5234_page_10219.out, 5234_summary.out,
> DataFileReader_Output.zip, DbCompressErrorTester.java, Derby5234.java,
> derby-5234-01-aa-emptyAllocPage.diff, derby-5234-01-ab-emptyAllocPage.diff,
> derby-5234-02-aa-edgeCaseTests.diff, log191.dat, log85.dat
>
>
> One of the derby database table "gets corrupted"/"indicates connection not
> available" during processing inserts from java client application as shown in
> the trace and the only way to recover from this error is to rebuild the DB -
> by deleting the data and creating the tables again. This happens once in a
> while (thrice in a span of two months) and the java application (run in
> multiple servers), which updates the database, processes around 100 million
> transactions per hour (in total and each transation results in 4-5 updates to
> the DB)
> There are eight tables in the derby database.
> TABLE NAME ROWS COUNT (at time of corruption)
> ---------------------------------------------------------------------------------
> KPI.KPI_MERGEIN; 362917
> KPI.KPI_IN; 422508
> KPI.KPI_DROPPED; 53667
> KPI.KPI_ERROR1; 0
> KPI.KPI_ERROR2; 2686
> KPI.KPI_ERRORMERGE; 0
> KPI.KPI_MERGEOUT; 362669
> KPI.KPI_OUT; 125873
> The derby database has been started with the following parameters
> CMD="java -Dderby.system.home=$DERBY_OPTS -Dderby.locks.monitor=true
> -Dderby.locks.deadlockTrace=true -Dderby.locks.escalationThreshold=50000
> -Dderby.locks.waitTimeout=
> -1 -Dderby.storage.pageCacheSize=100000 -Xms512M -Xmx3072M -XX:NewSize=256M
> -classpath $DERBY_CLASSPATH org.apache.derby.drda.NetworkServerControl start
> -h $KPIDERBYHOST -p $DERBY_KPI_PORT"
> The corrupted database tar (filesystem) in live environment was moved to a
> test system (Solaris system) and few checks were run on the corrupted DB as
> part of analysis (DB does start fine)
> While trying to insert a row in any table expect KPI.KPI_MERGEIN, it is
> successful. But when a new row is inserted into KPI.KPI_MERGEIN table using
> command line tool it's throwing below error message (the same message that
> appeared in live
> ij> INSERT INTO KPI.KPI_MERGEIN (A0_TXN_ID, A1_NE_ID, A2_CHU_IP_ADDR,
> A3_BATCH_DATE,A5_CODE) VALUES (-1, 'BMTDE', '192.2.1.3', 231456879, 'KSD');
> ERROR 08006: A network protocol error was encountered and the connection has
> been terminated: the requested command encountered an unarchitected and
> implementation-specific condition for which there was no architected message
> and in derby.log file it shows below error stacktrace.
> ERROR XSDG0: Page Page(51919,Container(0, 1104)) could not be read from disk.
> at org.apache.derby.iapi.error.StandardException.newException(Unknown
> Source)
> at org.apache.derby.impl.store.raw.data.CachedPage.readPage(Unknown
> Source)
> at
> org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(Unknown Source)
> at org.apache.derby.impl.services.cache.ConcurrentCache.find(Unknown
> Source)
> at
> org.apache.derby.impl.store.raw.data.FileContainer.initPage(Unknown Source)
> at org.apache.derby.impl.store.raw.data.FileContainer.newPage(Unknown
> Source)
> at org.apache.derby.impl.store.raw.data.BaseContainer.addPage(Unknown
> Source)
> at
> org.apache.derby.impl.store.raw.data.BaseContainerHandle.addPage(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.heap.HeapController.doInsert(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.heap.HeapController.insertAndFetchLocation(Unknown
> Source)
> at org.apache.derby.impl.sql.execute.RowChangerImpl.insertRow(Unknown
> Source)
> at
> org.apache.derby.impl.sql.execute.InsertResultSet.normalInsertCore(Unknown
> Source)
> at org.apache.derby.impl.sql.execute.InsertResultSet.open(Unknown
> Source)
> at
> org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Unknown Source)
> at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown
> Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown
> Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.parseEXCSQLIMM(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
> Caused by: java.io.EOFException: Reached end of file while attempting to read
> a whole page.
> at
> org.apache.derby.impl.store.raw.data.RAFContainer4.readFull(Unknown Source)
> at
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage0(Unknown Source)
> at
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(Unknown Source)
> ... 20 more
> ============= begin nested exception, level (1) ===========
> java.io.EOFException: Reached end of file while attempting to read a whole
> page.
> at
> org.apache.derby.impl.store.raw.data.RAFContainer4.readFull(Unknown Source)
> at
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage0(Unknown Source)
> at
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(Unknown Source)
> at org.apache.derby.impl.store.raw.data.CachedPage.readPage(Unknown
> Source)
> at
> org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(Unknown Source)
> at org.apache.derby.impl.services.cache.ConcurrentCache.find(Unknown
> Source)
> at
> org.apache.derby.impl.store.raw.data.FileContainer.initPage(Unknown Source)
> at org.apache.derby.impl.store.raw.data.FileContainer.newPage(Unknown
> Source)
> at org.apache.derby.impl.store.raw.data.BaseContainer.addPage(Unknown
> Source)
> at
> org.apache.derby.impl.store.raw.data.BaseContainerHandle.addPage(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.heap.HeapController.doInsert(Unknown
> Source)
> at
> org.apache.derby.impl.store.access.heap.HeapController.insertAndFetchLocation(Unknown
> Source)
> at org.apache.derby.impl.sql.execute.RowChangerImpl.insertRow(Unknown
> Source)
> at
> org.apache.derby.impl.sql.execute.InsertResultSet.normalInsertCore(Unknown
> Source)
> at org.apache.derby.impl.sql.execute.InsertResultSet.open(Unknown
> Source)
> at
> org.apache.derby.impl.sql.GenericPreparedStatement.executeStmt(Unknown Source)
> at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown
> Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown
> Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.execute(Unknown Source)
> at org.apache.derby.impl.jdbc.EmbedStatement.executeUpdate(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.parseEXCSQLIMM(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.processCommands(Unknown
> Source)
> at org.apache.derby.impl.drda.DRDAConnThread.run(Unknown Source)
> ============= end nested exception, level (1) ===========
> 2011-05-16 10:37:21.392 GMT:
> Shutting down instance a816c00e-012f-f85f-7892-ffff874c3ff6
> ----------------------------------------------------------------
> Cleanup action completed
> The problem is only with INSERT statement. When i try SELECT statement on
> KPI.KPI_MERGEIN table it is working well.The database file system size (in
> seg0) is 1.3 GB
> Can anyone help me out in identifying the problem that why for one table
> alone its throwing the above error message ? Would upgrade to a new version
> help ?
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