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Improve SubSegment Naming #32

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merged 5 commits into from
Mar 8, 2018
Merged

Improve SubSegment Naming #32

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bb5053c
Improve SubSegment Naming to remove invalid chars from URL to prevent…
greengiant Mar 5, 2018
eba3632
Use strip_url to remove everything from ? on in URL.
greengiant Mar 7, 2018
b49953b
Merge remote-tracking branch 'upstream/master' into sqlalchemy_namefi…
greengiant Mar 7, 2018
e2ed714
Show segment/subsegment name when logging message about invalid chars…
greengiant Mar 7, 2018
f945e99
Update Changelog
greengiant Mar 8, 2018
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2 changes: 1 addition & 1 deletion aws_xray_sdk/core/models/entity.py
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Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,7 @@ def __init__(self, name):
self.parent_id = None

if self.name != name:
log.warning("Removing Segment/Subsugment Name invalid characters.")
log.warning("Removing Segment/Subsugment Name invalid characters from {}.".format(name))

# sampling
self.sampled = True
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9 changes: 7 additions & 2 deletions aws_xray_sdk/ext/sqlalchemy/util/decerators.py
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Original file line number Diff line number Diff line change
@@ -1,11 +1,12 @@
import re
from aws_xray_sdk.core import xray_recorder
from aws_xray_sdk.ext.util import strip_url
from aws_xray_sdk.core.models.entity import _valid_name_characters
from future.standard_library import install_aliases
install_aliases()
from urllib.parse import urlparse, uses_netloc



def decorate_all_functions(function_decorator):
def decorator(cls):
for c in cls.__bases__:
Expand Down Expand Up @@ -46,7 +47,11 @@ def wrapper(*args, **kw):
sql = None
if sql is not None:
if getattr(c._local, 'entities', None) is not None:
subsegment = xray_recorder.begin_subsegment(sql['url'], namespace='remote')
# Strip URL of ? and following text
sub_name = strip_url(sql['url'])
# Ensure url has a valid characters.
sub_name = ''.join([c for c in sub_name if c in _valid_name_characters])
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This is a duplicate to https://github.com/aws/aws-xray-sdk-python/blob/master/aws_xray_sdk/core/models/entity.py#L33. IMO when we see a warning on invalid characters we fix from its source, like the strip_url here. But we should not deliberately skip the log warning by placing sub_name = ''.join([c for c in sub_name if c in _valid_name_characters]) everywhere.

Otherwise it looks fine.

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Without that code, we would still end up logging warnings for certain SQL URLs. For example 'échéanciers' is a valid name or a database in postgres, but would be stripped to 'chanciers' for x-ray... I left this code to prevent the warnings as the sqlalchemy plugin is setting this, so it is not in users control.. If you want it removed I will, let me know.

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I'm fine with special casing the sql subsegment name. I will create a follow up issue for further write an utility module that strips unicode for patchers that might capture unicode as subsegment name.

subsegment = xray_recorder.begin_subsegment(sub_name, namespace='remote')
else:
subsegment = None
res = func(*args, **kw)
Expand Down