@Test
public void compact_record_file_used() throws IOException {
e = openEngine();
Map<Long, String> m = fill(e);
e.commit();
e.close();
// now create fake compaction file, that should be ignored since seal is broken
String csealFile = e.getWalFileName("c");
Volume cseal = new Volume.FileChannelVol(new File(csealFile));
cseal.ensureAvailable(16);
cseal.putLong(8, 234238492376748923L);
cseal.close();
// create record wal file
String r0 = e.getWalFileName("r0");
Volume r = new Volume.FileChannelVol(new File(r0));
r.ensureAvailable(100000);
r.putLong(8, StoreWAL.WAL_SEAL);
long offset = 16;
// modify all records in map via record wal
for (long recid : m.keySet()) {
r.putUnsignedByte(offset++, 5 << 4);
r.putSixLong(offset, recid);
offset += 6;
String val = "aa" + recid;
m.put(recid, val);
DataIO.DataOutputByteArray b = new DataIO.DataOutputByteArray();
Serializer.STRING.serialize(b, val);
int size = b.pos;
r.putInt(offset, size);
offset += 4;
r.putData(offset, b.buf, 0, size);
offset += size;
}
r.putUnsignedByte(offset, 0);
r.sync();
r.putLong(8, StoreWAL.WAL_SEAL);
r.sync();
r.close();
// reopen engine, record WAL should be replayed
e = openEngine();
// check content of log file replayed into main store
for (long recid : m.keySet()) {
assertEquals(m.get(recid), e.get(recid, Serializer.STRING));
}
e.close();
}
protected void walCompactSwap(boolean seal) {
e = openEngine();
Map<Long, String> m = fill(e);
e.commit();
e.close();
// copy file into new location
String compactTarget = e.getWalFileName("c.compactXXX");
Volume f0 = new Volume.FileChannelVol(f);
Volume f = new Volume.FileChannelVol(new File(compactTarget));
f0.copyEntireVolumeTo(f);
f0.close();
f.sync();
f.close();
e = openEngine();
// modify orig file and close
Long recid = m.keySet().iterator().next();
e.update(recid, "aaa", Serializer.STRING);
if (!seal) m.put(recid, "aaa");
e.commit();
e.close();
// now move file so it is valid compacted file
assertTrue(new File(compactTarget).renameTo(new File(e.getWalFileName("c.compact"))));
// create compaction seal
String compactSeal = e.getWalFileName("c");
Volume sealVol = new Volume.FileChannelVol(new File(compactSeal));
sealVol.ensureAvailable(16);
sealVol.putLong(8, StoreWAL.WAL_SEAL + (seal ? 0 : 1));
sealVol.sync();
sealVol.close();
// now reopen file and check its content
// change should be reverted, since compaction file was used
e = openEngine();
for (Long recid2 : m.keySet()) {
assertEquals(m.get(recid2), e.get(recid2, Serializer.STRING));
}
}