def build_master_index(cache=False):
master_index = dict()
size = IndexEntry.size()
for node in localnode.nodes():
# print("Processing %s_index" % node)
node_index_file = os.path.join(GPFS_STORAGE, "%s_index" % node)
with open(node_index_file, 'r') as f:
while True:
chunk = f.read(size)
if chunk == '':
break
index_entry = IndexEntry.unpack(chunk)
strid = str(index_entry.id)
if strid not in master_index:
master_index[strid] = []
index_content = (index_entry.index,
index_entry.offset,
index_entry.chunk_size)
master_index[strid].append(index_content)
if cache:
print("putting it to memcache")
for key in master_index:
memcached.set(key, master_index[key])
print("done")
return master_index
def process():
print("Starting up...")
offset = localnode.index_offset
nnodes = len( localnode.nodes() )
words_index = build_master_index()
n = -1
new_index = dict()
print("Processing hash by hash...")
it = gen_files()
outfile, outfile_name = it.next()
for hash32 in words_index:
n += 1
if n % nnodes != offset:
continue
data = load_hash32(hash32, words_index)
if len(data) == 0:
continue
# hex decimal
for word, content in data.iteritems():
print("writing data for: %s" % word)
start_pos, end_pos, has_space = write_data_main(outfile, word, content)
new_index[word] = {
"file" : outfile_name,
"start" : start_pos,
"chunk_size" : end_pos - start_pos
}
print("Bytes: %d" % end_pos)
if not has_space:
print("%s is full" % outfile)
outfile, outfile_name = it.send(outfile)
print("moving on to %s" % outfile)
it.send(outfile)
return new_index
