INodeFileUnderConstruction pendingFile = (INodeFileUnderConstruction) iFile;
int nrBlocks = pendingFile.numBlocks();
BlockInfo[] blocks = pendingFile.getBlocks();
int nrCompleteBlocks;
BlockInfo curBlock = null;
for(nrCompleteBlocks = 0; nrCompleteBlocks < nrBlocks; nrCompleteBlocks++) {
curBlock = blocks[nrCompleteBlocks];
if(!curBlock.isComplete())
break;
assert blockManager.checkMinReplication(curBlock) :
"A COMPLETE block is not minimally replicated in " + src;
}
// If there are no incomplete blocks associated with this file,
// then reap lease immediately and close the file.
if(nrCompleteBlocks == nrBlocks) {
finalizeINodeFileUnderConstruction(src, pendingFile);
NameNode.stateChangeLog.warn("BLOCK*"
+ " internalReleaseLease: All existing blocks are COMPLETE,"
+ " lease removed, file closed.");
return true; // closed!
}
// Only the last and the penultimate blocks may be in non COMPLETE state.
// If the penultimate block is not COMPLETE, then it must be COMMITTED.
if(nrCompleteBlocks < nrBlocks - 2 ||
nrCompleteBlocks == nrBlocks - 2 &&
curBlock != null &&
curBlock.getBlockUCState() != BlockUCState.COMMITTED) {
final String message = "DIR* NameSystem.internalReleaseLease: "
+ "attempt to release a create lock on "
+ src + " but file is already closed.";
NameNode.stateChangeLog.warn(message);
throw new IOException(message);
}
// The last block is not COMPLETE, and
// that the penultimate block if exists is either COMPLETE or COMMITTED
final BlockInfo lastBlock = pendingFile.getLastBlock();
BlockUCState lastBlockState = lastBlock.getBlockUCState();
BlockInfo penultimateBlock = pendingFile.getPenultimateBlock();
boolean penultimateBlockMinReplication;
BlockUCState penultimateBlockState;
if (penultimateBlock == null) {
penultimateBlockState = BlockUCState.COMPLETE;
// If penultimate block doesn't exist then its minReplication is met