Job improvements

api/api.py

@@ -132,6 +132,7 @@ def prefix(path, routes):
         prefix('/jobs', [
             route('/next',                 JobsHandler, h='next',       m=['GET']),
             route('/stats',                JobsHandler, h='stats',      m=['GET']),
+            route('/pending',              JobsHandler, h='pending',    m=['GET']),
             route('/reap',                 JobsHandler, h='reap_stale', m=['POST']),
             route('/add',                  JobsHandler, h='add',        m=['POST']),
             route('/<:[^/]+>',             JobHandler),

api/jobs/handlers.py

@@ -287,7 +287,29 @@ def stats(self):
         if not self.superuser_request and not self.user_is_admin:
             self.abort(403, 'Request requires admin')
 
-        return Queue.get_statistics()
+        all_flag = self.is_true('all')
+        unique = self.is_true('unique')
+        tags = self.request.GET.getall('tags')
+        last = self.request.GET.get('last')
+
+        # Allow for tags to be specified multiple times, or just comma-deliminated
+        if len(tags) == 1:
+            tags = tags[0].split(',')
+
+        if last is not None:
+            last = int(last)
+
+        return Queue.get_statistics(tags=tags, last=last, unique=unique, all_flag=all_flag)
+
+    def pending(self):
+        if not self.superuser_request and not self.user_is_admin:
+            self.abort(403, 'Request requires admin')
+
+        tags = self.request.GET.getall('tags')
+        if len(tags) == 1:
+            tags = tags[0].split(',')
+
+        return Queue.get_pending(tags=tags)
 
     def next(self):
 
@@ -325,7 +347,7 @@ def get(self, _id):
 
     def get_config(self, _id):
         """Get a job's config"""
-        if not self.superuser_request:
+        if not self.superuser_request and not self.user_is_admin:
             self.abort(403, 'Request requires superuser')
 
         j = Job.get(_id)
@@ -373,10 +395,12 @@ def get_config(self, _id):
 
             encoded = pseudo_consistent_json_encode(c)
             self.response.app_iter = StringIO.StringIO(encoded)
+            self.response.headers['Content-Length'] = str(len(encoded.encode('utf-8'))) # must be set after app_iter
         else:
             # Legacy behavior
             encoded = pseudo_consistent_json_encode({"config": c})
             self.response.app_iter = StringIO.StringIO(encoded)
+            self.response.headers['Content-Length'] = str(len(encoded.encode('utf-8'))) # must be set after app_iter
 
     @require_login
     def put(self, _id):

api/jobs/queue.py

@@ -360,30 +360,53 @@ def search(containers, states=None, tags=None):
         ])
 
     @staticmethod
-    def get_statistics():
+    def get_statistics(tags=None, last=None, unique=False, all_flag=False):
         """
         Return a variety of interesting information about the job queue.
         """
 
-        # Count jobs by state
-        result = config.db.jobs.aggregate([{"$group": {"_id": "$state", "count": {"$sum": 1}}}])
-        # Map mongo result to a useful object
+        if all_flag:
+            unique = True
+            if last is None:
+                last = 3
+
+        results = { }
+        match = { } # match all jobs
+
+        if tags is not None and len(tags) > 0:
+            match = { 'tags': {'$in': tags } } # match only jobs with given tags
+
+        # Count jobs by state, mapping the mongo result to a useful object
+        result = list(config.db.jobs.aggregate([{'$match': match }, {'$group': {'_id': '$state', 'count': {'$sum': 1}}}]))
         by_state = {s: 0 for s in JOB_STATES}
         by_state.update({r['_id']: r['count'] for r in result})
+        results['states'] = by_state
+
+        # List unique tags
+        if unique:
+            results['unique'] = sorted(config.db.jobs.distinct('tags'))
+
+        # List recently modified jobs for each state
+        if last is not None:
+            results['recent'] = {s: config.db.jobs.find({'$and': [match, {'state': s}]}, {'modified':1}).sort([('modified', pymongo.DESCENDING)]).limit(last) for s in JOB_STATES}
 
-        # Count jobs by tag grouping
-        result = list(config.db.jobs.aggregate([{"$group": {"_id": "$tags", "count": {"$sum": 1}}}]))
-        by_tag = []
-        for r in result:
-            by_tag.append({'tags': r['_id'], 'count': r['count']})
+        return results
 
-        # Count jobs that will not be retried
-        permafailed = config.db.jobs.count({"attempt": {"$gte": max_attempts()}, "state":"failed"})
+    @staticmethod
+    def get_pending(tags=None):
+        """
+        Returns the same format as get_statistics, but only the pending number.
+        Designed to be as efficient as possible for frequent polling :(
+        """
+
+        match = { } # match all jobs
+        if tags is not None and len(tags) > 0:
+            match = { 'tags': {'$in': tags } } # match only jobs with given tags
 
         return {
-            'by-state': by_state,
-            'by-tag': by_tag,
-            'permafailed': permafailed
+            'states': {
+                'pending': config.db.jobs.count({'$and': [match, {'state': 'pending'}]})
+            }
         }
 
     @staticmethod

tests/integration_tests/python/test_jobs.py

@@ -10,6 +10,9 @@ def test_jobs_access(as_user):
     r = as_user.get('/jobs/stats')
     assert r.status_code == 403
 
+    r = as_user.get('/jobs/pending')
+    assert r.status_code == 403
+
     r = as_user.post('/jobs/reap')
     assert r.status_code == 403
 
@@ -328,6 +331,17 @@ def test_jobs(data_builder, default_payload, as_public, as_user, as_admin, as_ro
     assert "The job did not report in for a long time and was canceled." in [log["msg"] for log in r.json()['logs']]
     api_db.jobs.delete_one({"_id": bson.ObjectId("5a007cdb0f352600d94c845f")})
 
+    r = as_admin.get('/jobs/stats')
+    assert r.ok
+    r = as_admin.get('/jobs/pending')
+    assert r.ok
+    r = as_admin.get('/jobs/pending', params={'tags': 'auto,unused'})
+    assert r.ok
+    r = as_admin.get('/jobs/stats', params={'all': '1'})
+    assert r.ok
+    r = as_admin.get('/jobs/stats', params={'tags': 'auto,unused', 'last': '2'})
+    assert r.ok
+
 
 def test_failed_job_output(data_builder, default_payload, as_user, as_admin, as_drone, api_db, file_form):
     # create gear