diff --git a/treeherder/etl/common.py b/treeherder/etl/common.py
index cebae8771..56b5bfbdb 100644
--- a/treeherder/etl/common.py
+++ b/treeherder/etl/common.py
@@ -159,4 +159,7 @@ def fetch_missing_resultsets(source, missing_resultsets, logger):
     try:
         fetch_missing_push_logs.apply_async(args=[missing_resultsets])
     except Exception as ex:
-        logger.error("error fetching missing resultsets: {0}".format(ex))
+        logger.exception("error fetching missing resultsets: {0}, {1}".format(
+            missing_resultsets,
+            ex
+            ))
diff --git a/treeherder/etl/mixins.py b/treeherder/etl/mixins.py
index 257498873..84cd9e033 100644
--- a/treeherder/etl/mixins.py
+++ b/treeherder/etl/mixins.py
@@ -129,6 +129,7 @@ class OAuthLoaderMixin(object):
                 oauth_secret=credentials.get('consumer_secret', None)
             )
 
+            logger.info("collection loading request: {0}".format(th_request.get_uri(th_collections[project].endpoint_base)))
             response = th_request.post(th_collections[project])
 
             if not response or response.status != 200:
diff --git a/treeherder/etl/pushlog.py b/treeherder/etl/pushlog.py
index 831d20d81..b23eaaa52 100644
--- a/treeherder/etl/pushlog.py
+++ b/treeherder/etl/pushlog.py
@@ -1,5 +1,6 @@
 from django.core.cache import cache
 from django.conf import settings
+import time
 import requests
 import logging
 
@@ -108,16 +109,40 @@ class HgPushlogProcess(HgPushlogTransformerMixin,
 class MissingHgPushlogProcess(HgPushlogTransformerMixin,
                               OAuthLoaderMixin):
 
-    def extract(self, url):
+    def extract(self, url, resultset):
+        # we will sometimes get here because builds4hr/pending/running have a
+        # job with a resultset that json-pushes doesn't know about.  Seems
+        # odd, but it happens.  So we just ingest
+
         logger.info("extracting missing resultsets: {0}".format(url))
         response = requests.get(url, timeout=settings.TREEHERDER_REQUESTS_TIMEOUT)
-        response.raise_for_status()
+        if response.status_code == 404:
+            # we want to make a "fake" resultset, because json-pushes doesn't
+            # know about it.  This is what TBPL does
+            return {
+                "00001": {
+                    "date": int(time.time()),
+                    "changesets": [
+                        {
+                            "node": resultset,
+                            "files": [],
+                            "tags": [],
+                            "author": "Unknown",
+                            "branch": "default",
+                            "desc": "Pushlog not found at {0}".format(url)
+                        }
+                    ],
+                    "user": "Unknown"
+                }
+            }
+        else:
+            response.raise_for_status()
         return response.json()
 
-    def run(self, source_url, repository):
+    def run(self, source_url, repository, resultset):
 
         try:
-            extracted_content = self.extract(source_url)
+            extracted_content = self.extract(source_url, resultset)
 
             if extracted_content:
 
@@ -125,16 +150,22 @@ class MissingHgPushlogProcess(HgPushlogTransformerMixin,
                     extracted_content,
                     repository
                 )
-                logger.info("loading missing resultsets: {0}".format(transformed))
+
+                for project, coll in transformed.iteritems():
+                    logger.info("loading missing resultsets for {0}: {1}".format(
+                        project,
+                        coll.to_json()))
+
                 self.load(transformed)
+                logger.info("done loading missing resultsets for {0}".format(repository))
             else:
                 assert extracted_content, (
                     "Got no content response for missing resultsets: {0}".format(
                         source_url)
                     )
         except Exception as ex:
-            logger.error("error fetching missing resultsets: {0}".format(
-                ex
+            logger.exception("error loading missing resultsets: {0}".format(
+                source_url
             ))
 
 class GitPushlogTransformerMixin(object):
diff --git a/treeherder/etl/tasks/cleanup_tasks.py b/treeherder/etl/tasks/cleanup_tasks.py
index 80fc33b1f..198efbd51 100644
--- a/treeherder/etl/tasks/cleanup_tasks.py
+++ b/treeherder/etl/tasks/cleanup_tasks.py
@@ -16,20 +16,23 @@ def fetch_missing_push_logs(missing_pushlogs):
     try:
         repos = filter(lambda x: x['url'], rdm.get_all_repository_info())
         for repo in repos:
-            if repo['dvcs_type'] == 'hg':
-                fetch_missing_hg_push_logs.apply_async(args=(
-                    repo['name'],
-                    repo['url'],
-                    missing_pushlogs[repo['name']]
-                    ),
-                    routing_key='pushlog'
+            if repo['dvcs_type'] == 'hg' and repo['name'] in missing_pushlogs:
+                # we must get them one at a time, because if ANY are missing
+                # from json-pushes, it'll return a 404 for the group.
+                for resultset in missing_pushlogs[repo['name']]:
+                    fetch_missing_hg_push_logs.apply_async(args=(
+                        repo['name'],
+                        repo['url'],
+                        resultset
+                        ),
+                        routing_key='pushlog'
                 )
     finally:
         rdm.disconnect()
 
 
 @task(name='fetch-missing-hg-push-logs', time_limit=3*60)
-def fetch_missing_hg_push_logs(repo_name, repo_url, resultsets):
+def fetch_missing_hg_push_logs(repo_name, repo_url, resultset):
     """
     Run a HgPushlog etl process
 
@@ -37,10 +40,10 @@ def fetch_missing_hg_push_logs(repo_name, repo_url, resultsets):
     """
     process = MissingHgPushlogProcess()
 
-    changesetParam = urllib.urlencode({"changeset": resultsets}, True)
+    changesetParam = urllib.urlencode({"changeset": resultset}, True)
     url_str = repo_url + '/json-pushes/?full=1&' + changesetParam
 
     logger.info("fetching missing resultsets: {0}".format(url_str))
-    process.run(url_str, repo_name)
+    process.run(url_str, repo_name, resultset)