[ 
https://issues.apache.org/jira/browse/DERBY-3533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12579794#action_12579794
 ] 

narayanan edited comment on DERBY-3533 at 3/18/08 3:23 AM:
-------------------------------------------------------------

Thank you Jorgen, for summarizing the issue, suggesting a crisp explanation of 
the possible solution,
code pointers to places from were code can be reused for this issue and issues 
that you think would 
form a highlight in this implementation.

The series of steps (outlined above in the comments by Jorgen) if followed 
before replication startup 
on the master (done as a system procedure) will help to take care of the all 
the logged operations except 
jar file operations. 

I believe there is no issue with the index and the import operations, and that 
enabling logging
for the unlogged operations will solve the problem encountered in these cases. 
* I however did not
find much literature on the nature of the logs for these operations and would 
appreciate any inputs
from the community here.*


Jar Files
---------

With regards to Jar files

* The installed jar files are not logged but system catalog updates are logged
  when jar files are added/deleted.
* This would mean that allowing jar file operations during deletion would result
  in the system catalog table on the slave having a reference to the jar file 
that
  does not exist in the backup database

solution
--------

* Block jar file operations when backup is in progress
* write clear documentation stating that the jar files will have to be
  manually copied to the slave.

I intend to bifurcate this issue into two JIRA's

1) Implement procedure SYSCS_UTIL.SYSCS_PREPARE_REPLICATION() 
2) Handle installed jar files during replication

      was (Author: narayanan):
    Thank you Jorgen, for summarizing the issue, suggesting a crisp explanation 
of the possible solution,
code pointers to places from were code can be reused for this issue and issues 
that you think would 
form a highlight in this implementation.

The series of steps (outlined above in the comments by Jorgen) if followed 
before replication startup 
on the master (done as a system procedure) will help to take care of the all 
the logged operations except 
jar file operations. 

I believe there is no issue with the index and the import operations, and that 
enabling logging
for the unlogged operations will solve the problem encountered in these cases. 
* I however did not
find much literature on the nature of the logs for these operations and would 
appreciate any inputs
from the community here.*


Jar Files
---------

With regards to Jar files

* The installed jar files are not logged but system catalog updates are logged
  when jar files are added/deleted.
* This would mean that allowing jar file operations during deletion would result
  in the system catalog table on the slave having a reference to the jar file 
that
  does not exist in the backup database

solution
--------

* Block jar file operations when backup is in progress
* write clear documentation stating that the jar files will have to be
  manually copied to the slave.

I intend to bifurcate this issue into two JIRA's

1) Handle logging of unlogged operations
2) Handle installed jar files during replication
  
> Replication fails when unlogged operations are used
> ---------------------------------------------------
>
>                 Key: DERBY-3533
>                 URL: https://issues.apache.org/jira/browse/DERBY-3533
>             Project: Derby
>          Issue Type: Bug
>          Components: Replication
>    Affects Versions: 10.4.0.0
>            Reporter: Øystein Grøvlen
>            Assignee: V.Narayanan
>
> I created an index while replication was running, and the slave seems to have 
> failed at that time.  Below is excerpts from derby.log on the slave.  The 
> container id referred to, matches the id of the index on the master.
> ------------  BEGIN SHUTDOWN ERROR STACK -------------
> ----  BEGIN REPLICATION ERROR MESSAGE (3/11/08 2:32 PM) ----
> ERROR XSLA7: Cannot redo operation Page Operation: Page(349,Container(0, 
> 1041)) pageVersion 180 : Insert :  Slot=177 recordId=183 in the log.
>       at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:296)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1525)
>       at 
> org.apache.derby.impl.store.raw.log.LogToFile.recover(LogToFile.java:920)
>       at org.apache.derby.impl.store.raw.RawStore.boot(RawStore.java:334)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.store.access.RAMAccessManager.boot(RAMAccessManager.java:1019)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.db.BasicDatabase.bootStore(BasicDatabase.java:789)
>       at org.apache.derby.impl.db.BasicDatabase.boot(BasicDatabase.java:205)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.bootBasicDatabase(SlaveDatabase.java:421)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.access$000(SlaveDatabase.java:70)
>       at 
> org.apache.derby.impl.db.SlaveDatabase$SlaveDatabaseBootThread.run(SlaveDatabase.java:308)
>       at java.lang.Thread.run(Thread.java:619)
> Caused by: ERROR XSDG0: Page Page(349,Container(0, 1041)) could not be read 
> from disk.
>       at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:336)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:688)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(CachedPage.java:190)
>       at 
> org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:288)
>       at 
> org.apache.derby.impl.store.raw.data.FileContainer.getAnyPage(FileContainer.java:2493)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainer.getAnyPage(BaseContainer.java:496)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainerHandle.getAnyPage(BaseContainerHandle.java:611)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.findpage(PageBasicOperation.java:304)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.needsRedo(PageBasicOperation.java:160)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1395)
>       ... 17 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:378)
>       at 
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(RAFContainer4.java:201)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:664)
>       ... 25 more
> ============= begin nested exception, level (1) ===========
> ERROR XSDG0: Page Page(349,Container(0, 1041)) could not be read from disk.
>       at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:336)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:688)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(CachedPage.java:190)
>       at 
> org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:288)
>       at 
> org.apache.derby.impl.store.raw.data.FileContainer.getAnyPage(FileContainer.java:2493)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainer.getAnyPage(BaseContainer.java:496)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainerHandle.getAnyPage(BaseContainerHandle.java:611)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.findpage(PageBasicOperation.java:304)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.needsRedo(PageBasicOperation.java:160)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1395)
>       at 
> org.apache.derby.impl.store.raw.log.LogToFile.recover(LogToFile.java:920)
>       at org.apache.derby.impl.store.raw.RawStore.boot(RawStore.java:334)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.store.access.RAMAccessManager.boot(RAMAccessManager.java:1019)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.db.BasicDatabase.bootStore(BasicDatabase.java:789)
>       at org.apache.derby.impl.db.BasicDatabase.boot(BasicDatabase.java:205)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.bootBasicDatabase(SlaveDatabase.java:421)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.access$000(SlaveDatabase.java:70)
>       at 
> org.apache.derby.impl.db.SlaveDatabase$SlaveDatabaseBootThread.run(SlaveDatabase.java:308)
>       at java.lang.Thread.run(Thread.java:619)
> 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:378)
>       at 
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(RAFContainer4.java:201)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:664)
>       ... 25 more
> ============= end nested exception, level (1) ===========
> ============= begin nested exception, level (2) ===========
> 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:378)
>       at 
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(RAFContainer4.java:201)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:664)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(CachedPage.java:190)
>       at 
> org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:288)
>       at 
> org.apache.derby.impl.store.raw.data.FileContainer.getAnyPage(FileContainer.java:2493)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainer.getAnyPage(BaseContainer.java:496)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainerHandle.getAnyPage(BaseContainerHandle.java:611)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.findpage(PageBasicOperation.java:304)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.needsRedo(PageBasicOperation.java:160)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1395)
>       at 
> org.apache.derby.impl.store.raw.log.LogToFile.recover(LogToFile.java:920)
>       at org.apache.derby.impl.store.raw.RawStore.boot(RawStore.java:334)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.store.access.RAMAccessManager.boot(RAMAccessManager.java:1019)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.db.BasicDatabase.bootStore(BasicDatabase.java:789)
>       at org.apache.derby.impl.db.BasicDatabase.boot(BasicDatabase.java:205)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.bootBasicDatabase(SlaveDatabase.java:421)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.access$000(SlaveDatabase.java:70)
>       at 
> org.apache.derby.impl.db.SlaveDatabase$SlaveDatabaseBootThread.run(SlaveDatabase.java:308)
>       at java.lang.Thread.run(Thread.java:619)
> ============= end nested exception, level (2) ===========
> ------------  END SHUTDOWN ERROR STACK -------------
> Replication slave role was stopped for database 'slaveDB'.
> Replication slave got a fatal error for database 'slaveDB'. Replication will 
> be stopped.
> ERROR XSLAA: The store has been marked for shutdown by an earlier exception.
>       at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:279)
>       at 
> org.apache.derby.impl.store.raw.log.LogToFile.appendLogRecord(LogToFile.java:3704)
>       at 
> org.apache.derby.impl.store.replication.slave.SlaveController$SlaveLogReceiverThread.handleLogChunk(SlaveController.java:535)
>       at 
> org.apache.derby.impl.store.replication.slave.SlaveController$SlaveLogReceiverThread.run(SlaveController.java:481)
> Caused by: ERROR XSLA7: Cannot redo operation Page Operation: 
> Page(349,Container(0, 1041)) pageVersion 180 : Insert :  Slot=177 
> recordId=183 in the log.
>       at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:296)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1525)
>       at 
> org.apache.derby.impl.store.raw.log.LogToFile.recover(LogToFile.java:920)
>       at org.apache.derby.impl.store.raw.RawStore.boot(RawStore.java:334)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.store.access.RAMAccessManager.boot(RAMAccessManager.java:1019)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.db.BasicDatabase.bootStore(BasicDatabase.java:789)
>       at org.apache.derby.impl.db.BasicDatabase.boot(BasicDatabase.java:205)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.bootBasicDatabase(SlaveDatabase.java:421)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.access$000(SlaveDatabase.java:70)
>       at 
> org.apache.derby.impl.db.SlaveDatabase$SlaveDatabaseBootThread.run(SlaveDatabase.java:308)
>       at java.lang.Thread.run(Thread.java:619)
> Caused by: ERROR XSDG0: Page Page(349,Container(0, 1041)) could not be read 
> from disk.
>       at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:336)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:688)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(CachedPage.java:190)
>       at 
> org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:288)
>       at 
> org.apache.derby.impl.store.raw.data.FileContainer.getAnyPage(FileContainer.java:2493)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainer.getAnyPage(BaseContainer.java:496)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainerHandle.getAnyPage(BaseContainerHandle.java:611)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.findpage(PageBasicOperation.java:304)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.needsRedo(PageBasicOperation.java:160)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1395)
>       ... 17 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:378)
>       at 
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(RAFContainer4.java:201)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:664)
>       ... 25 more
> ============= begin nested exception, level (1) ===========
> ERROR XSLA7: Cannot redo operation Page Operation: Page(349,Container(0, 
> 1041)) pageVersion 180 : Insert :  Slot=177 recordId=183 in the log.
>       at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:296)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1525)
>       at 
> org.apache.derby.impl.store.raw.log.LogToFile.recover(LogToFile.java:920)
>       at org.apache.derby.impl.store.raw.RawStore.boot(RawStore.java:334)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.store.access.RAMAccessManager.boot(RAMAccessManager.java:1019)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.db.BasicDatabase.bootStore(BasicDatabase.java:789)
>       at org.apache.derby.impl.db.BasicDatabase.boot(BasicDatabase.java:205)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.bootBasicDatabase(SlaveDatabase.java:421)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.access$000(SlaveDatabase.java:70)
>       at 
> org.apache.derby.impl.db.SlaveDatabase$SlaveDatabaseBootThread.run(SlaveDatabase.java:308)
>       at java.lang.Thread.run(Thread.java:619)
> Caused by: ERROR XSDG0: Page Page(349,Container(0, 1041)) could not be read 
> from disk.
>       at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:336)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:688)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(CachedPage.java:190)
>       at 
> org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:288)
>       at 
> org.apache.derby.impl.store.raw.data.FileContainer.getAnyPage(FileContainer.java:2493)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainer.getAnyPage(BaseContainer.java:496)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainerHandle.getAnyPage(BaseContainerHandle.java:611)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.findpage(PageBasicOperation.java:304)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.needsRedo(PageBasicOperation.java:160)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1395)
>       ... 17 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:378)
>       at 
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(RAFContainer4.java:201)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:664)
>       ... 25 more
> ============= end nested exception, level (1) ===========
> ============= begin nested exception, level (2) ===========
> ERROR XSDG0: Page Page(349,Container(0, 1041)) could not be read from disk.
>       at 
> org.apache.derby.iapi.error.StandardException.newException(StandardException.java:336)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:688)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(CachedPage.java:190)
>       at 
> org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:288)
>       at 
> org.apache.derby.impl.store.raw.data.FileContainer.getAnyPage(FileContainer.java:2493)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainer.getAnyPage(BaseContainer.java:496)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainerHandle.getAnyPage(BaseContainerHandle.java:611)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.findpage(PageBasicOperation.java:304)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.needsRedo(PageBasicOperation.java:160)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1395)
>       at 
> org.apache.derby.impl.store.raw.log.LogToFile.recover(LogToFile.java:920)
>       at org.apache.derby.impl.store.raw.RawStore.boot(RawStore.java:334)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.store.access.RAMAccessManager.boot(RAMAccessManager.java:1019)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.db.BasicDatabase.bootStore(BasicDatabase.java:789)
>       at org.apache.derby.impl.db.BasicDatabase.boot(BasicDatabase.java:205)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.bootBasicDatabase(SlaveDatabase.java:421)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.access$000(SlaveDatabase.java:70)
>       at 
> org.apache.derby.impl.db.SlaveDatabase$SlaveDatabaseBootThread.run(SlaveDatabase.java:308)
>       at java.lang.Thread.run(Thread.java:619)
> 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:378)
>       at 
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(RAFContainer4.java:201)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:664)
>       ... 25 more
> ============= end nested exception, level (2) ===========
> ============= begin nested exception, level (3) ===========
> 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:378)
>       at 
> org.apache.derby.impl.store.raw.data.RAFContainer4.readPage(RAFContainer4.java:201)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.readPage(CachedPage.java:664)
>       at 
> org.apache.derby.impl.store.raw.data.CachedPage.setIdentity(CachedPage.java:190)
>       at 
> org.apache.derby.impl.services.cache.ConcurrentCache.find(ConcurrentCache.java:288)
>       at 
> org.apache.derby.impl.store.raw.data.FileContainer.getAnyPage(FileContainer.java:2493)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainer.getAnyPage(BaseContainer.java:496)
>       at 
> org.apache.derby.impl.store.raw.data.BaseContainerHandle.getAnyPage(BaseContainerHandle.java:611)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.findpage(PageBasicOperation.java:304)
>       at 
> org.apache.derby.impl.store.raw.data.PageBasicOperation.needsRedo(PageBasicOperation.java:160)
>       at 
> org.apache.derby.impl.store.raw.log.FileLogger.redo(FileLogger.java:1395)
>       at 
> org.apache.derby.impl.store.raw.log.LogToFile.recover(LogToFile.java:920)
>       at org.apache.derby.impl.store.raw.RawStore.boot(RawStore.java:334)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.store.access.RAMAccessManager.boot(RAMAccessManager.java:1019)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.boot(BaseMonitor.java:1999)
>       at 
> org.apache.derby.impl.services.monitor.TopService.bootModule(TopService.java:291)
>       at 
> org.apache.derby.impl.services.monitor.BaseMonitor.startModule(BaseMonitor.java:553)
>       at 
> org.apache.derby.iapi.services.monitor.Monitor.bootServiceModule(Monitor.java:427)
>       at 
> org.apache.derby.impl.db.BasicDatabase.bootStore(BasicDatabase.java:789)
>       at org.apache.derby.impl.db.BasicDatabase.boot(BasicDatabase.java:205)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.bootBasicDatabase(SlaveDatabase.java:421)
>       at 
> org.apache.derby.impl.db.SlaveDatabase.access$000(SlaveDatabase.java:70)
>       at 
> org.apache.derby.impl.db.SlaveDatabase$SlaveDatabaseBootThread.run(SlaveDatabase.java:308)
>       at java.lang.Thread.run(Thread.java:619)
> ============= end nested exception, level (3) ===========
> --------------------  END REPLICATION ERROR MESSAGE ---------------------
> Replication slave role was stopped for database 'slaveDB'.

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