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#!/usr/bin/env python | |
from __future__ import division | |
import time | |
import os | |
import hashlib | |
import tempfile | |
from math import ceil | |
from cStringIO import StringIO | |
from concurrent.futures import ThreadPoolExecutor | |
from eucaops import Eucaops | |
from eucaops import S3ops | |
from eutester.eutestcase import EutesterTestCase | |
class OSGConcurrency(EutesterTestCase): | |
def __init__(self): | |
self.setuptestcase() | |
self.setup_parser() | |
self.parser.add_argument("-b", "--buckets", type=int, default=5) | |
self.parser.add_argument("-o", "--objects", type=int, default=5) | |
self.parser.add_argument("-T", "--threads", type=int, default=5) | |
self.parser.add_argument("-S", "--object-size", type=int, default=64, help="Object size in KB") | |
self.parser.add_argument("-M", "--mpu-threshold", type=int, default=5120, | |
help="Multipart upload is used when the object size is bigger than the mpu-threshold " | |
"value in Kilobyte. Any value less than 5120KB will result single file upload. " | |
"Default value is used when not passed as an argument.") | |
self.get_args() | |
# Setup basic eutester object | |
if self.args.region: | |
self.tester = S3ops( credpath=self.args.credpath, region=self.args.region) | |
else: | |
self.tester = Eucaops( credpath=self.args.credpath, config_file=self.args.config,password=self.args.password) | |
self.start = time.time() | |
self.bucket_names = [] | |
self.bucket_name = "concurrency-" + str(int(self.start)) + "-" | |
for i in xrange(self.args.buckets): | |
bucket_name = self.bucket_name + str(i) | |
self.bucket_names.append(bucket_name) | |
self.tester.create_bucket(bucket_name) | |
self.temp_files = [] | |
def clean_method(self): | |
with ThreadPoolExecutor(max_workers=self.args.threads) as executor: | |
for i in xrange(self.args.buckets): | |
executor.submit(self.tester.clear_bucket(self.bucket_names[i])) | |
for tf in self.temp_files: | |
tf.close() | |
def get_object(self, bucket, key_name, meta=True): | |
""" | |
Writes the object to a temp file and returns the meta info of the object e.g hash, name. | |
Returns the downloaded object when meta is set to False. | |
""" | |
self.debug("Getting object '" + key_name + "'") | |
ret_key = bucket.get_key(key_name) | |
temp_object = tempfile.NamedTemporaryFile(mode="w+b", prefix="eutester-mpu") | |
self.temp_files.append(temp_object) | |
ret_key.get_contents_to_file(temp_object) | |
if meta: | |
return {'name': temp_object.name, 'hash': self.get_hash(temp_object.name)} | |
return temp_object | |
def single_upload(self, bucket, key_name, file_path): | |
key = bucket.new_key(key_name) | |
key.set_contents_from_filename(file_path) | |
self.debug("Uploaded key '" + key_name + "' to bucket '" + bucket.name + "'") | |
return key | |
def multipart_upload(self, bucket, key_name, eufile): | |
part_size = 1024 * self.args.mpu_threshold | |
eufile.seek(0, os.SEEK_END) | |
eufile_size = eufile.tell() | |
num_parts = int(ceil(eufile_size / part_size)) | |
mpu = bucket.initiate_multipart_upload(key_name) | |
self.debug("Initiated MPU. Using MPU Id: " + mpu.id) | |
for i in range(num_parts): | |
start = part_size * i | |
file_part = open(eufile.name, 'rb') | |
file_part.seek(start) | |
data = file_part.read(part_size) | |
file_part.close() | |
mpu.upload_part_from_file(StringIO(data), i+1) | |
self.debug("Uploaded part " + str(i+1) + " of '" + key_name + "' to bucket '" + bucket.name + "'") | |
self.debug("Completing multipart upload of '" + key_name + "' to bucket '" + bucket.name + "'" + " using mpu id: " + mpu.id) | |
mpu.complete_upload() | |
self.debug("Completed multipart upload of '" + key_name + "' to bucket '" + bucket.name + "'") | |
def put_get_check(self, bucket_name, key_name, eu_file): | |
""" | |
PUT objects, GET objects and then verify objects with object hash | |
5MB is a hard-coded limit for MPU in OSG | |
""" | |
bucket = self.tester.get_bucket_by_name(bucket_name) | |
if (os.path.getsize(eu_file.name) > (5 * 1024 * 1024)) and (self.args.mpu_threshold >= (5 * 1024)): | |
self.multipart_upload(bucket, key_name, eu_file) | |
else: | |
self.single_upload(bucket, key_name, eu_file.name) | |
ret_object_meta = self.get_object(bucket, key_name) | |
local_object_hash = self.get_hash(eu_file.name) | |
if ret_object_meta['hash'] != local_object_hash: | |
self.debug("return_object hash: " + ret_object_meta['hash']) | |
self.debug("local_object hash: " + local_object_hash) | |
self.debug("uploaded content and downloaded content are not same.") | |
return False | |
return True | |
def get_content(self, file_path): | |
with open(file_path) as file_to_check: | |
data = file_to_check.read() | |
return data | |
def get_hash(self, file_path): | |
return hashlib.md5(self.get_content(file_path)).hexdigest() | |
def create_file(self, size_in_kb, file_name="eutester-object"): | |
temp_file = tempfile.NamedTemporaryFile(mode='w+b', prefix=file_name) | |
self.temp_files.append(temp_file) | |
temp_file.write(os.urandom(1024 * size_in_kb)) | |
return temp_file.name | |
def Concurrent(self): | |
eu_file = open(self.create_file(self.args.object_size)) | |
self.debug("Object information:") | |
self.debug("Object hash: " + self.get_hash(eu_file.name)) | |
self.debug("Object size: " + str(int(os.path.getsize(eu_file.name) / 1024)) + "KB") | |
thread_pool = [] | |
with ThreadPoolExecutor(max_workers=self.args.threads) as executor: | |
for i in xrange(self.args.buckets): | |
for j in xrange(self.args.objects): | |
thread_pool.append(executor.submit(self.put_get_check, | |
bucket_name=self.bucket_names[i], | |
key_name=eu_file.name + str(j), eu_file=eu_file)) | |
for tp in thread_pool: | |
try: | |
if not tp.result(): | |
self.fail("[CRITICAL] failed upload in thread") | |
except Exception as e: | |
self.fail("Found exception in thread-pool: " + e.message) | |
if __name__ == "__main__": | |
testcase = OSGConcurrency() | |
### Use the list of tests passed from config/command line to determine what subset of tests to run | |
### or use a predefined list | |
list = testcase.args.tests or ["Concurrent"] | |
### Convert test suite methods to EutesterUnitTest objects | |
unit_list = [ ] | |
for test in list: | |
unit_list.append( testcase.create_testunit_by_name(test) ) | |
### Run the EutesterUnitTest objects | |
result = testcase.run_test_case_list(unit_list) | |
exit(result) | |
# run testcases/cloud_user/s3/osg_concurrency.py --config /root/input/2b_tested.lst --password foobar --buckets 1 --objects 1 --threads 1 --object-size 10240 --mpu-threshold 0 | |
# run testcases/cloud_user/s3/osg_concurrency.py --config /root/input/2b_tested.lst --password foobar --buckets 2 --objects 3 --object-size 10240 --threads 3 --mpu-threshold 5120 |
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