try to replace blocking sleep call with nonblocking sleep call

app/aws/s3.py

@@ -6,6 +6,7 @@ from concurrent.futures import ThreadPoolExecutor
 from io import StringIO
 
 import botocore
+import eventlet
 from boto3 import Session
 from flask import current_app
 
@@ -375,7 +376,7 @@ def get_job_from_s3(service_id, job_id):
                 )
                 retries += 1
                 sleep_time = backoff_factor * (2**retries)  # Exponential backoff
-                time.sleep(sleep_time)
+                eventlet.sleep(sleep_time)
                 continue
             else:
                 # Typically this is "NoSuchKey"

app/celery/tasks.py

@@ -1,6 +1,6 @@
 import json
-from time import sleep
 
+import eventlet
 from celery.signals import task_postrun
 from flask import current_app
 from requests import HTTPError, RequestException, request
@@ -83,7 +83,7 @@ def process_job(job_id, sender_id=None):
         process_row(row, template, job, service, sender_id=sender_id)
         count = count + 1
         if count % 3 == 0:
-            sleep(1)
+            eventlet.sleep(1)
 
     # End point/Exit point for message send flow.
     job_complete(job, start=start)

app/clients/cloudwatch/aws_cloudwatch.py

@@ -151,7 +151,7 @@ class AwsCloudwatchClient(Client):
     #         result = temp_client.get_query_results(queryId=query_id)
     #         if result['status'] == 'Complete':
     #             break
-    #         time.sleep(1)
+    #         eventlet.sleep(1)
 
     #     delivery_receipts = []
     #     for log in result['results']: