Skip to content

CCM-17531: Mesh download out-of-memory exception #332

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
Ian-Hodges wants to merge 3 commits into
base: main
Choose a base branch
from
Draft

CCM-17531: Mesh download out-of-memory exception #332

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
4855aff
CCM-17531: add some temp logging
Ian-Hodges May 7, 2026
d28aea5
CCM-17531: add some temp logging
Ian-Hodges May 7, 2026
ce271af
CCM-17531: add some temp logging
Ian-Hodges May 7, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 10 additions & 0 deletions lambdas/mesh-download/mesh_download/handler.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,14 @@ def handler(event, context):
'failed': 0
}

def _get_memory_mb() -> float:
with open('/proc/self/status') as f:
for line in f:
if line.startswith('VmRSS:'):
# Value is in kB, e.g. "VmRSS: 12345 kB"
return int(line.split()[1]) / 1024
return 0.0

try:
with Config() as config:
doc_store_config = DocumentStoreConfig(
Expand Down Expand Up @@ -60,8 +68,10 @@ def handler(event, context):
continue

try:
log.info("Memory before process_sqs_message", message_id=message_id, memory_mb=_get_memory_mb())
outcome = processor.process_sqs_message(record)
processed[outcome] += 1
log.info("Memory after process_sqs_message", message_id=message_id, memory_mb=_get_memory_mb())

except Exception as exc:
processed['failed'] += 1
Expand Down
16 changes: 15 additions & 1 deletion lambdas/mesh-download/mesh_download/processor.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -24,13 +24,27 @@ def __init__(self, **kwargs):

self.__storage_bucket = self.__config.transactional_data_bucket

@staticmethod
def _get_memory_mb() -> float:
with open('/proc/self/status') as f:
for line in f:
if line.startswith('VmRSS:'):
# Value is in kB, e.g. "VmRSS: 12345 kB"
return int(line.split()[1]) / 1024
return 0.0

def process_sqs_message(self, sqs_record):
try:
self.__log.info("Memory before _parse_and_validate_event", message_id=sqs_record.get('messageId'), memory_mb=self._get_memory_mb())
validated_event = self._parse_and_validate_event(sqs_record)
self.__log.info("Memory after _parse_and_validate_event", message_id=sqs_record.get('messageId'), memory_mb=self._get_memory_mb())
logger = self.__log.bind(mesh_message_id=validated_event.data.meshMessageId)

logger.info("Processing MESH download request")
return self._handle_download(validated_event, logger)
logger.info("Memory before _handle_download", message_id=sqs_record.get('messageId'), memory_mb=self._get_memory_mb())
result = self._handle_download(validated_event, logger)
logger.info("Memory after _handle_download", message_id=sqs_record.get('messageId'), memory_mb=self._get_memory_mb())
return result

except Exception as exc:
self.__log.error(
Expand Down
Loading