我是python新手,尝试递归地将目录中所有tar文件的gz内容以及其中的目录上传到s3。总共有1350000个tar文件。你知道吗
我没有空间一次解压所有的文件,所以我要一次解压其中一个。你知道吗
最初我的脚本工作,但一旦遇到错误(tar文件已损坏)我的脚本结束。我添加了一堆try-except子句来尝试记录并继续这些错误,现在我的脚本似乎没有上传这些文件,即使我得到如下输出:
('iter: ', '/srv/nfs/storage/bucket/2015/11/20/KFWS/NWS_NEXRAD_NXL2DP_KFWS_20151120130000_20151120135959.tar')
KFWS20151120_130030_V06.gz
('singlepart', <Bucket: bucket>, '/srv/nfs/storage/bucket/2015/11/20/KFWS/KFWS20151120_130030_V06.gz', '2015/11/20/KFWS/KFWS20151120_130030_V06.gz')
('single_part: ', '2015/11/20/KFWS/KFWS20151120_130030_V06.gz', '/srv/nfs/storage/bucket/2015/11/20/KFWS/KFWS20151120_130030_V06.gz')
KFWS20151120_131000_V06.gz
('iter: ', '/srv/nfs/storage/bucket/2015/11/20/KFWS/NWS_NEXRAD_NXL2DP_KFWS_20151120110000_20151120115959.tar')
KFWS20151120_110630_V06.gz
('singlepart', <Bucket: bucket>, '/srv/nfs/storage/bucket/2015/11/20/KFWS/KFWS20151120_110630_V06.gz', '2015/11/20/KFWS/KFWS20151120_110630_V06.gz')
('single_part: ', '2015/11/20/KFWS/KFWS20151120_110630_V06.gz', '/srv/nfs/storage/bucket/2015/11/20/KFWS/KFWS20151120_110630_V06.gz')
KFWS20151120_111601_V06.gz
它表明它正在进入single\u部分,对我来说,这意味着它至少正在运行singlept函数并尝试上载一个对象,但没有Zimport_错误.列表或Znoaa_nexrad_文件.list我在bucket中没有看到任何新对象。你知道吗
下面的代码:(事先为它的严重性道歉。我试着自学python,只学了几个星期。)
这里是主要的街区
def singlept(bucket, keyname, local_file):
retries = 0
key_size = 0
local_size = os.path.getsize(local_file)
while retries <= 4 and local_size != key_size:
local_md5 = md5file(local_file=local_file)
print('single_part: ', keyname, local_file)
try:
key = bucket.new_key(keyname)
except Exception:
print('couldn\'t create key: ', keyname)
pass
try:
key.set_contents_from_filename(local_file)
key_size = key.size
with open(successfile, 'ab') as f:
f.write('\n')
f.write(str(local_file + ',' + keyname + ',' + str(key_size) + ',' + str(local_size)))
except Exception:
print('couldn\'t upload file: ', local_file, ' as key: ', keyname)
with open(errorfile, 'ab') as f:
f.write('\n')
f.write(str(local_file + ',' + keyname + ',' + str(key_size) + ',' + str(local_size)))
pass
for dir, subdir, files in os.walk(local_bucket):
s3path = "/".join(str(dir).split('/')[5:])
local_path = str(local_bucket + '/' + s3path)
for fname in files:
if fname.endswith("tar"):
fullpath = local_path + '/' + fname
if (debug):
print('iter: ',fullpath)
with tarfile.open(fullpath, 'r') as tarball:
zips = tarball.getmembers()
try:
tarball.extractall(path=local_path)
except Exception:
with open(errorfile, 'ab') as f:
f.write('\n')
f.write(str(fullpath + ',' + str(os.path.getsize(fullpath))))
continue
for zip in zips:
if (debug):
print(zip.name)
local_file = local_path + '/' + zip.name
keyname = s3path + '/' + zip.name
try:
if zip.size >= 1073741824:
if (debug):
print('multipart',bucket, local_file, keyname)
multipt(bucket, local_file, keyname)
else:
if (debug):
print('singlepart',bucket, local_file, keyname)
singlept(bucket, keyname, local_file)
except Exception:
with open(errorfile, 'ab') as f:
f.write('\n')
f.write(str(local_file + "," + keyname))
continue
if local_file.endswith("gz"):
try:
os.remove(local_file)
except Exception:
print('couldn\'t remove file: ', local_file)
continue
非常感谢您的帮助!我在拔头发!你知道吗
编辑——直接添加代码,希望能修复缩进!它在原子中看起来是正确的,但粘贴不正确。:-/
except Exception
只捕获类型为Exception
的异常—请参见https://stackoverflow.com/a/18982726/264822。您应该尝试:相关问题 更多 >
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