protected final boolean verifyDeletedBlocks(LocatedBlocks locatedBlocks)
throws IOException, InterruptedException {
LOG.info("Verifying replica has no saved copy after deletion.");
triggerBlockReport();
while (DataNodeTestUtils.getPendingAsyncDeletions(cluster.getDataNodes().get(0)) > 0L) {
Thread.sleep(1000);
}
final String bpid = cluster.getNamesystem().getBlockPoolId();
List<? extends FsVolumeSpi> volumes = cluster.getDataNodes().get(0).getFSDataset().getVolumes();
// Make sure deleted replica does not have a copy on either finalized dir of
// transient volume or finalized dir of non-transient volume
for (FsVolumeSpi v : volumes) {
FsVolumeImpl volume = (FsVolumeImpl) v;
File targetDir =
(v.isTransientStorage())
? volume.getBlockPoolSlice(bpid).getFinalizedDir()
: volume.getBlockPoolSlice(bpid).getLazypersistDir();
if (verifyBlockDeletedFromDir(targetDir, locatedBlocks) == false) {
return false;
}
}
return true;
}
/**
* Make sure at least one non-transient volume has a saved copy of the replica. An infinite loop
* is used to ensure the async lazy persist tasks are completely done before verification. Caller
* of ensureLazyPersistBlocksAreSaved expects either a successful pass or timeout failure.
*/
protected final void ensureLazyPersistBlocksAreSaved(LocatedBlocks locatedBlocks)
throws IOException, InterruptedException {
final String bpid = cluster.getNamesystem().getBlockPoolId();
List<? extends FsVolumeSpi> volumes = cluster.getDataNodes().get(0).getFSDataset().getVolumes();
final Set<Long> persistedBlockIds = new HashSet<Long>();
while (persistedBlockIds.size() < locatedBlocks.getLocatedBlocks().size()) {
// Take 1 second sleep before each verification iteration
Thread.sleep(1000);
for (LocatedBlock lb : locatedBlocks.getLocatedBlocks()) {
for (FsVolumeSpi v : volumes) {
if (v.isTransientStorage()) {
continue;
}
FsVolumeImpl volume = (FsVolumeImpl) v;
File lazyPersistDir = volume.getBlockPoolSlice(bpid).getLazypersistDir();
long blockId = lb.getBlock().getBlockId();
File targetDir = DatanodeUtil.idToBlockDir(lazyPersistDir, blockId);
File blockFile = new File(targetDir, lb.getBlock().getBlockName());
if (blockFile.exists()) {
// Found a persisted copy for this block and added to the Set
persistedBlockIds.add(blockId);
}
}
}
}
// We should have found a persisted copy for each located block.
assertThat(persistedBlockIds.size(), is(locatedBlocks.getLocatedBlocks().size()));
}