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in order to solve the memory leak at #5146

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Large encoded string take a very long time to to release from memory, but if we just pass the stream directly into json.load we get much better memory performance.
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imdark 2017-05-17 11:49:30 -07:00 committed by GitHub
parent 1ca5a9d042
commit 3a2ad8e68c
1 changed files with 3 additions and 2 deletions
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5
rest_framework/parsers.py
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@ -22,6 +22,7 @@ from django.utils.six.moves.urllib import parse as urlparse
from rest_framework import renderers from rest_framework import renderers
from rest_framework.exceptions import ParseError from rest_framework.exceptions import ParseError
import codecs
class DataAndFiles(object): class DataAndFiles(object):
@ -61,8 +62,8 @@ class JSONParser(BaseParser):
encoding = parser_context.get('encoding', settings.DEFAULT_CHARSET) encoding = parser_context.get('encoding', settings.DEFAULT_CHARSET)
try: try:
data = stream.read().decode(encoding) decoded_stream = codecs.decode(stream, encoding)
return json.loads(data) return json.load(decoded_stream)
except ValueError as exc: except ValueError as exc:
raise ParseError('JSON parse error - %s' % six.text_type(exc)) raise ParseError('JSON parse error - %s' % six.text_type(exc))