Merge "s3api: return 503 if mpu complete gets 409 deleting marker"
This commit is contained in:
Zuul
Gerrit Code Review
commit
90419df785
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@ -68,8 +68,9 @@ import time
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import six
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from swift.common import constraints
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from swift.common.swob import Range, bytes_to_wsgi, normalize_etag, wsgi_to_str
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from swift.common.utils import json, public, reiterate, md5
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from swift.common.swob import Range, bytes_to_wsgi, normalize_etag, \
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wsgi_to_str
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from swift.common.utils import json, public, reiterate, md5, Timestamp
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from swift.common.db import utf8encode
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from swift.common.request_helpers import get_container_update_override_key, \
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get_param
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@ -82,7 +83,7 @@ from swift.common.middleware.s3api.s3response import InvalidArgument, \
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ErrorResponse, MalformedXML, BadDigest, KeyTooLongError, \
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InvalidPart, BucketAlreadyExists, EntityTooSmall, InvalidPartOrder, \
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InvalidRequest, HTTPOk, HTTPNoContent, NoSuchKey, NoSuchUpload, \
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NoSuchBucket, BucketAlreadyOwnedByYou
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NoSuchBucket, BucketAlreadyOwnedByYou, ServiceUnavailable
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from swift.common.middleware.s3api.utils import unique_id, \
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MULTIUPLOAD_SUFFIX, S3Timestamp, sysmeta_header
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from swift.common.middleware.s3api.etree import Element, SubElement, \
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@ -96,6 +97,17 @@ MAX_COMPLETE_UPLOAD_BODY_SIZE = 2048 * 1024
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def _get_upload_info(req, app, upload_id):
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"""
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Make a HEAD request for existing upload object metadata. Tries the upload
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marker first, and then falls back to the manifest object.
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:param req: an S3Request object.
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:param app: the wsgi app.
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:param upload_id: the upload id.
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:returns: a tuple of (S3Response, boolean) where the boolean is True if the
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response is from the upload marker and False otherwise.
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:raises: NoSuchUpload if neither the marker nor the manifest were found.
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"""
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container = req.container_name + MULTIUPLOAD_SUFFIX
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obj = '%s/%s' % (req.object_name, upload_id)
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@ -106,7 +118,8 @@ def _get_upload_info(req, app, upload_id):
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# it off for now...
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copy_source = req.headers.pop('X-Amz-Copy-Source', None)
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try:
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return req.get_response(app, 'HEAD', container=container, obj=obj)
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resp = req.get_response(app, 'HEAD', container=container, obj=obj)
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return resp, True
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except NoSuchKey:
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# ensure consistent path and policy are logged despite manifest HEAD
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upload_marker_path = req.environ.get('s3api.backend_path')
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@ -115,7 +128,7 @@ def _get_upload_info(req, app, upload_id):
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resp = req.get_response(app, 'HEAD')
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if resp.sysmeta_headers.get(sysmeta_header(
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'object', 'upload-id')) == upload_id:
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return resp
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return resp, False
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except NoSuchKey:
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pass
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finally:
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@ -655,7 +668,14 @@ class UploadController(Controller):
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Handles Complete Multipart Upload.
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"""
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upload_id = get_param(req, 'uploadId')
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resp = _get_upload_info(req, self.app, upload_id)
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resp, is_marker = _get_upload_info(req, self.app, upload_id)
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if (is_marker and
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resp.sw_headers.get('X-Backend-Timestamp') >= Timestamp.now()):
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# Somehow the marker was created in the future w.r.t. this thread's
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# clock. The manifest PUT may succeed but the subsequent marker
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# DELETE will fail, so don't attempt either.
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raise ServiceUnavailable
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headers = {'Accept': 'application/json',
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sysmeta_header('object', 'upload-id'): upload_id}
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for key, val in resp.headers.items():
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@ -1432,8 +1432,10 @@ class S3Request(swob.Request):
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raise SlowDown(status='429 Slow Down')
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raise SlowDown()
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if resp.status_int == HTTP_CONFLICT:
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# TODO: validate that this actually came up out of SLO
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raise BrokenMPU()
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if self.method == 'GET':
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raise BrokenMPU()
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else:
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raise ServiceUnavailable()
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raise InternalError('unexpected status code %d' % status)
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@ -24,7 +24,7 @@ from six.moves.urllib.parse import parse_qs, quote, quote_plus
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from swift.common import swob
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from swift.common.swob import Request
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from swift.common.utils import json, md5
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from swift.common.utils import json, md5, Timestamp
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from test.unit import FakeMemcache, patch_policies
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from test.unit.common.middleware.s3api import S3ApiTestCase
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@ -1649,6 +1649,64 @@ class TestS3ApiMultiUpload(S3ApiTestCase):
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self.assertEqual(headers.get('X-Object-Meta-Foo'), 'bar')
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self.assertEqual(headers.get('Content-Type'), 'baz/quux')
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def _do_test_object_multipart_upload_complete_marker_in_future(
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self, marker_timestamp, now_timestamp):
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# verify that clock skew is detected before manifest is created and
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# results in a 503
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segment_bucket = '/v1/AUTH_test/bucket+segments'
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self.swift.register('HEAD', segment_bucket + '/object/X',
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swob.HTTPOk,
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{'x-object-meta-foo': 'bar',
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'content-type': 'application/directory',
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'x-object-sysmeta-s3api-has-content-type': 'yes',
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'x-object-sysmeta-s3api-content-type':
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'baz/quux',
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'X-Backend-Timestamp': marker_timestamp.internal},
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None)
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req = Request.blank('/bucket/object?uploadId=X',
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environ={'REQUEST_METHOD': 'POST'},
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headers={'Authorization': 'AWS test:tester:hmac',
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'Date': self.get_date_header(skew=100), },
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body=XML)
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# marker created in the future
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with patch('swift.common.middleware.s3api.controllers.multi_upload.'
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'Timestamp.now', return_value=now_timestamp):
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status, headers, body = self.call_s3api(req)
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self.assertEqual(status.split()[0], '503')
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self.assertEqual('ServiceUnavailable', self._get_error_code(body))
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self.assertEqual(self.swift.calls, [
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('HEAD', '/v1/AUTH_test'),
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('HEAD', '/v1/AUTH_test/bucket'),
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('HEAD', '/v1/AUTH_test/bucket+segments/object/X')])
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def test_object_multipart_upload_complete_marker_ts_now(self):
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marker_timestamp = now_timestamp = Timestamp.now()
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self._do_test_object_multipart_upload_complete_marker_in_future(
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marker_timestamp, now_timestamp)
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def test_object_multipart_upload_complete_marker_ts_in_future(self):
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marker_timestamp = Timestamp.now()
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now_timestamp = Timestamp(float(marker_timestamp) - 1)
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self._do_test_object_multipart_upload_complete_marker_in_future(
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marker_timestamp, now_timestamp)
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def test_object_multipart_upload_complete_409_on_marker_delete(self):
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# verify that clock skew preventing an upload marker DELETE results in
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# a 503 (this would be unexpected because there's a check for clock
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# skew before the manifest PUT and marker DELETE)
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segment_bucket = '/v1/AUTH_test/bucket+segments'
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self.swift.register('DELETE', segment_bucket + '/object/X',
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swob.HTTPConflict, {}, None)
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req = Request.blank('/bucket/object?uploadId=X',
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environ={'REQUEST_METHOD': 'POST'},
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headers={'Authorization': 'AWS test:tester:hmac',
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'Date': self.get_date_header(), },
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body=XML)
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status, headers, body = self.call_s3api(req)
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self.assertEqual(status.split()[0], '503')
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self.assertEqual('ServiceUnavailable', self._get_error_code(body))
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def test_object_multipart_upload_complete_old_content_type(self):
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self.swift.register_unconditionally(
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'HEAD', '/v1/AUTH_test/bucket+segments/object/X',
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