More about this. I found where it is the problem. The problem is in
LogFileManager. Look at the first source code, code from version 4.0.1,
which should work fine and return null when the next data record belongs
to a log with an id less or equal that the current one.
The second source code is a decompilation with JAD and the second test
is not there.
How could be possible? The code seems to be behind the source code !!!!!
Thanks.
*Source from 4.0.1*
public Location getNextDataRecordLocation(Location lastLocation) throws
IOException, InvalidRecordLocationException {
RecordInfo ri = readRecordInfo(lastLocation);
while (true) {
int logFileId = ri.getLocation().getLogFileId();
int offset = ri.getNextLocation();
// Are we overflowing into next logFile?
if (offset >= ri.getLogFileState().getAppendOffset()) {
LogFileNode nextActive =
ri.getLogFileState().getNextActive();
*if (nextActive == null || nextActive.getId() <=
ri.getLogFileState().getId() ) {*
return null;
}
logFileId = nextActive.getId();
offset = 0;
}
try {
ri = readRecordInfo(new Location(logFileId, offset));
} catch (InvalidRecordLocationException e) {
return null;
}
// Is the next record the right record type?
if (ri.getHeader().getRecordType() == DATA_RECORD_TYPE) {
return ri.getLocation();
}
// No? go onto the next record.
}
}
*Decompiled class*
public Location getNextDataRecordLocation(Location lastLocation) throws
IOException, InvalidRecordLocationException {
/* 409*/ RecordInfo ri = readRecordInfo(lastLocation);
/* 412*/ do {
/* 412*/ int logFileId = ri.getLocation().getLogFileId();
/* 413*/ int offset = ri.getNextLocation();
/* 416*/ if(offset >= ri.getLogFileState().getAppendOffset()) {
/* 417*/ LogFileNode nextActive =
ri.getLogFileState().getNextActive();
/* 418*/ *if(nextActive == null)*
/* 419*/ return null;
/* 421*/ logFileId = nextActive.getId();
/* 422*/ offset = 0;
}
/* 426*/ try {
/* 426*/ ri = readRecordInfo(new Location(logFileId,
offset));
}
/* 427*/ catch(InvalidRecordLocationException e) {
/* 428*/ return null;
}
} while(ri.getHeader().getRecordType() != 1);
/* 433*/ return ri.getLocation();
}
Adrian Tarau wrote:
I got recently into a problem with the journal, when the application
starts it hangs. After some debug, I noticed that
JournalPersistenceAdapter.recover() {
...
while ((pos = journal.getNextRecordLocation(pos)) != null) {
...
}
...
}
loops infinitely .
RecordLocation indicate that the position goes to the end of the
journal and start again.
Anybody experienced something like that? It is a know bug in 4.0.1, I
couldn't find something, but maybe I missed somehow.
Thanks.
