More charts improvements

.gitignore

@@ -12,3 +12,4 @@ logs
 MANIFEST
 secrets.py
 *.egg-info
+*.bkp

airflow/hooks/presto/presto_hook.py

@@ -43,8 +43,11 @@ class PrestoHook(BaseHook):
         client = self.client
         if client.runquery(hql, schema):
             data = client.getdata()
-            df = pandas.DataFrame(data)
+            if data:
-            df.columns = [c['name'] for c in client.getcolumns()]
+                df = pandas.DataFrame(data)
+                df.columns = [c['name'] for c in client.getcolumns()]
+            else:
+                df = pandas.DataFrame()
             return df
         else:
             raise PrestoException(self.client.getlasterrormessage())

airflow/www/app.py

@@ -2,7 +2,9 @@ from datetime import datetime, timedelta
 import dateutil.parser
 import json
 import logging
+import re
 import sys
+import urllib2
 
 from flask import Flask, url_for, Markup, Blueprint, redirect, flash, Response
 from flask.ext.admin import Admin, BaseView, expose, AdminIndexView
@@ -35,6 +37,8 @@ from airflow.www.login import login_manager
 import flask_login
 from flask_login import login_required
 
+QUERY_LIMIT = 100000
+CHART_LIMIT = 200000
 
 AUTHENTICATE = conf.getboolean('core', 'AUTHENTICATE')
 if AUTHENTICATE is False:
@@ -128,6 +132,7 @@ class Airflow(BaseView):
 
     @expose('/query')
     @login_required
+    @wwwutils.gzipped
     def query(self):
         session = settings.Session()
         dbs = session.query(models.DatabaseConnection).order_by(
@@ -150,7 +155,8 @@ class Airflow(BaseView):
             db = [db for db in dbs if db.db_id == db_id_str][0]
             hook = db.get_hook()
             try:
-                df = hook.get_pandas_df(sql)
+                # df = hook.get_pandas_df(wwwutils.limit_sql(sql, QUERY_LIMIT))
+                df = hook.get_pandas_df(sql, QUERY_LIMIT)
                 has_data = len(df) > 0
                 df = df.fillna('')
                 results = df.to_html(
@@ -162,6 +168,11 @@ class Airflow(BaseView):
                 flash(str(e), 'error')
                 error = True
 
+        if has_data and len(df) == QUERY_LIMIT:
+            flash(
+                "Query output truncated at " + str(QUERY_LIMIT) +
+                " rows", 'info')
+
         if not has_data and error:
             flash('No data', 'error')
 
@@ -218,10 +229,15 @@ class Airflow(BaseView):
         pd.set_option('display.max_colwidth', 100)
         hook = db.get_hook()
         try:
-            df = hook.get_pandas_df(sql)
+            df = hook.get_pandas_df(wwwutils.limit_sql(sql, CHART_LIMIT))
         except Exception as e:
             payload['error'] += "SQL execution failed. Details: " + str(e)
 
+        if not payload['error'] and len(df) == CHART_LIMIT:
+            payload['warning'] = (
+                "Data has been truncated to {0}"
+                " rows. Expect incomplete results.").format(CHART_LIMIT)
+
         if not payload['error'] and len(df) == 0:
             payload['error'] += "Empty result set. "
         elif not payload['error'] and len(df.columns) < 3:
@@ -470,14 +486,12 @@ class Airflow(BaseView):
         has_access = role in request.headers.get('X-Internalauth-Groups')
 
         d = {k: v for k, v in request.headers}
-        try:
+        cookie = urllib2.unquote(d.get('Cookie', ''))
-            import urllib2
+        mailsrch = re.compile(
-            cookie = urllib2.unquote(d.get('Cookie'))
+            r'[\w\-][\w\-\.]+@[\w\-][\w\-\.]+[a-zA-Z]{1,4}')
-            cookie = ''.join(cookie.split('j:')[1:]).split('; _ga=')[0]
+        res = mailsrch.findall(cookie)
-            cookie = json.loads(cookie)
+        email = res[0] if res else ''
-            email = str(cookie['data']['userData']['mail'][0])
+
-        except:
-            email = ""
         if has_access:
             user = session.query(models.User).filter(
                 models.User.username == username).first()
@@ -647,6 +661,7 @@ class Airflow(BaseView):
                 return response
 
     @expose('/tree')
+    @wwwutils.gzipped
     def tree(self):
         dag_id = request.args.get('dag_id')
         dag = dagbag.dags[dag_id]
@@ -973,19 +988,19 @@ class TaskInstanceModelView(ModelView):
         'start_date', 'end_date', 'duration', 'state', 'log')
     can_delete = True
 mv = TaskInstanceModelView(
-    models.TaskInstance, session, name="Task Instances", category="Admin")
+    models.TaskInstance, Session(), name="Task Instances", category="Admin")
 admin.add_view(mv)
 
 
 class JobModelView(ModelViewOnly):
     column_default_sort = ('start_date', True)
-mv = JobModelView(jobs.BaseJob, session, name="Jobs", category="Admin")
+mv = JobModelView(jobs.BaseJob, Session(), name="Jobs", category="Admin")
 admin.add_view(mv)
 
 
 class UserModelView(LoginMixin, ModelView):
     pass
-mv = UserModelView(models.User, session, name="Users", category="Admin")
+mv = UserModelView(models.User, Session(), name="Users", category="Admin")
 admin.add_view(mv)
 
 
@@ -1002,7 +1017,7 @@ class DatabaseConnectionModelView(LoginMixin, ModelView):
         ]
     }
 mv = DatabaseConnectionModelView(
-    models.DatabaseConnection, session,
+    models.DatabaseConnection, Session(),
     name="Database Connections", category="Admin")
 admin.add_view(mv)
 
@@ -1012,7 +1027,7 @@ class LogModelView(ModelViewOnly):
     column_filters = ('dag_id', 'task_id', 'execution_date')
 
 mv = LogModelView(
-    models.Log, session, name="Logs", category="Admin")
+    models.Log, Session(), name="Logs", category="Admin")
 admin.add_view(mv)
 
 
@@ -1122,7 +1137,7 @@ class ChartModelView(LoginMixin, ModelView):
             model.user_id = flask_login.current_user.id
 
 mv = ChartModelView(
-    models.Chart, session,
+    models.Chart, Session(),
     name="Charts", category="Tools")
 admin.add_view(mv)
 

airflow/www/login.py

@@ -14,8 +14,8 @@ login_manager = flask_login.LoginManager()
 def load_user(userid):
     session = settings.Session()
     user = session.query(User).filter(User.id == userid).first()
-    if not user:
+    #if not user:
-        raise Exception(userid)
+    #    raise Exception(userid)
     session.expunge_all()
     session.commit()
     session.close()

airflow/www/templates/airflow/highchart.html

@@ -123,6 +123,10 @@
       $('#chart_section').hide(1000);
       $('#datatable_section').hide(1000);
     }
+    function warn(msg){
+      $('#error_msg').html(msg);
+      $('#error').show();
+    }
     $( document ).ready(function() {
       Highcharts.setOptions({
         colors: [
@@ -154,6 +158,8 @@
         else {
           error(payload.error);
         }
+        if ('warning' in payload)
+            warn(payload.warning);
       }).fail(function() {
         error( "Ooops. Unhandled error." );
       });

airflow/www/utils.py

@@ -7,6 +7,15 @@ from flask import after_this_request, request
 import wtforms
 from wtforms.compat import text_type
 
+def limit_sql(sql, limit):
+    sql = sql.strip()
+    sql = sql.rstrip(';')
+    return """\
+    SELECT * FROM (
+    {sql}
+    ) qry
+    LIMIT {limit};
+    """.format(**locals())
 
 def gzipped(f):
     '''