@Test
public void testInjectionEmpty() throws IOException {
SimulatedFSDataset fsdataset = getSimulatedFSDataset();
BlockListAsLongs blockReport = fsdataset.getBlockReport(bpid);
assertEquals(0, blockReport.getNumberOfBlocks());
int bytesAdded = addSomeBlocks(fsdataset);
blockReport = fsdataset.getBlockReport(bpid);
assertEquals(NUMBLOCKS, blockReport.getNumberOfBlocks());
for (Block b : blockReport) {
assertNotNull(b);
assertEquals(blockIdToLen(b.getBlockId()), b.getNumBytes());
}
// Inject blocks into an empty fsdataset
// - injecting the blocks we got above.
SimulatedFSDataset sfsdataset = getSimulatedFSDataset();
sfsdataset.injectBlocks(bpid, blockReport);
blockReport = sfsdataset.getBlockReport(bpid);
assertEquals(NUMBLOCKS, blockReport.getNumberOfBlocks());
for (Block b : blockReport) {
assertNotNull(b);
assertEquals(blockIdToLen(b.getBlockId()), b.getNumBytes());
assertEquals(blockIdToLen(b.getBlockId()), sfsdataset.getLength(new ExtendedBlock(bpid, b)));
}
assertEquals(bytesAdded, sfsdataset.getDfsUsed());
assertEquals(sfsdataset.getCapacity() - bytesAdded, sfsdataset.getRemaining());
}
public void testGetBlockReport() throws IOException {
SimulatedFSDataset fsdataset = getSimulatedFSDataset();
BlockListAsLongs blockReport = fsdataset.getBlockReport(bpid);
assertEquals(0, blockReport.getNumberOfBlocks());
addSomeBlocks(fsdataset);
blockReport = fsdataset.getBlockReport(bpid);
assertEquals(NUMBLOCKS, blockReport.getNumberOfBlocks());
for (Block b : blockReport) {
assertNotNull(b);
assertEquals(blockIdToLen(b.getBlockId()), b.getNumBytes());
}
}
@Test
public void testInjectionNonEmpty() throws IOException {
SimulatedFSDataset fsdataset = getSimulatedFSDataset();
BlockListAsLongs blockReport = fsdataset.getBlockReport(bpid);
assertEquals(0, blockReport.getNumberOfBlocks());
int bytesAdded = addSomeBlocks(fsdataset);
blockReport = fsdataset.getBlockReport(bpid);
assertEquals(NUMBLOCKS, blockReport.getNumberOfBlocks());
for (Block b : blockReport) {
assertNotNull(b);
assertEquals(blockIdToLen(b.getBlockId()), b.getNumBytes());
}
fsdataset = null;
// Inject blocks into an non-empty fsdataset
// - injecting the blocks we got above.
SimulatedFSDataset sfsdataset = getSimulatedFSDataset();
// Add come blocks whose block ids do not conflict with
// the ones we are going to inject.
bytesAdded += addSomeBlocks(sfsdataset, NUMBLOCKS + 1);
sfsdataset.getBlockReport(bpid);
assertEquals(NUMBLOCKS, blockReport.getNumberOfBlocks());
sfsdataset.getBlockReport(bpid);
assertEquals(NUMBLOCKS, blockReport.getNumberOfBlocks());
sfsdataset.injectBlocks(bpid, blockReport);
blockReport = sfsdataset.getBlockReport(bpid);
assertEquals(NUMBLOCKS * 2, blockReport.getNumberOfBlocks());
for (Block b : blockReport) {
assertNotNull(b);
assertEquals(blockIdToLen(b.getBlockId()), b.getNumBytes());
assertEquals(blockIdToLen(b.getBlockId()), sfsdataset.getLength(new ExtendedBlock(bpid, b)));
}
assertEquals(bytesAdded, sfsdataset.getDfsUsed());
assertEquals(sfsdataset.getCapacity() - bytesAdded, sfsdataset.getRemaining());
// Now test that the dataset cannot be created if it does not have sufficient cap
conf.setLong(SimulatedFSDataset.CONFIG_PROPERTY_CAPACITY, 10);
try {
sfsdataset = getSimulatedFSDataset();
sfsdataset.addBlockPool(bpid, conf);
sfsdataset.injectBlocks(bpid, blockReport);
assertTrue("Expected an IO exception", false);
} catch (IOException e) {
// ok - as expected
}
}
@Override // DatanodeProtocol
public DatanodeCommand blockReport(DatanodeRegistration nodeReg, String poolId, long[] blocks)
throws IOException {
verifyRequest(nodeReg);
BlockListAsLongs blist = new BlockListAsLongs(blocks);
if (stateChangeLog.isDebugEnabled()) {
stateChangeLog.debug(
"*BLOCK* NameNode.blockReport: "
+ "from "
+ nodeReg.getName()
+ " "
+ blist.getNumberOfBlocks()
+ " blocks");
}
namesystem.getBlockManager().processReport(nodeReg, poolId, blist);
if (nn.getFSImage().isUpgradeFinalized()) return new DatanodeCommand.Finalize(poolId);
return null;
}