Question

我能够在Flask中嵌入散景服务器图形。这是localhost上的输出：

问题是我无法在Heroku上完成这项工作。我得到的只是文字“这是你的伟大网站”。

因此，该应用程序由三个文件组成。

包含图表的脚本：

#bokeh_plot.py
import pandas as pd

from bokeh.layouts import row, widgetbox
from bokeh.models import Select
from bokeh.palettes import Spectral5
from bokeh.plotting import curdoc, figure
from bokeh.sampledata.autompg import autompg

df = autompg.copy()

SIZES = list(range(6, 22, 3))
COLORS = Spectral5
ORIGINS = ['North America', 'Europe', 'Asia']

# data cleanup
df.cyl = [str(x) for x in df.cyl]
df.origin = [ORIGINS[x-1] for x in df.origin]

df['year'] = [str(x) for x in df.yr]
del df['yr']

df['mfr'] = [x.split()[0] for x in df.name]
df.loc[df.mfr=='chevy', 'mfr'] = 'chevrolet'
df.loc[df.mfr=='chevroelt', 'mfr'] = 'chevrolet'
df.loc[df.mfr=='maxda', 'mfr'] = 'mazda'
df.loc[df.mfr=='mercedes-benz', 'mfr'] = 'mercedes'
df.loc[df.mfr=='toyouta', 'mfr'] = 'toyota'
df.loc[df.mfr=='vokswagen', 'mfr'] = 'volkswagen'
df.loc[df.mfr=='vw', 'mfr'] = 'volkswagen'
del df['name']

columns = sorted(df.columns)
discrete = [x for x in columns if df[x].dtype == object]
continuous = [x for x in columns if x not in discrete]
quantileable = [x for x in continuous if len(df[x].unique()) > 20]


def create_figure():
    xs = df[x.value].values
    ys = df[y.value].values
    x_title = x.value.title()
    y_title = y.value.title()

    kw = dict()
    if x.value in discrete:
        kw['x_range'] = sorted(set(xs))
    if y.value in discrete:
        kw['y_range'] = sorted(set(ys))
    kw['title'] = "%s vs %s" % (x_title, y_title)

    p = figure(plot_height=600, plot_width=800, tools='pan,box_zoom,reset', **kw)
    p.xaxis.axis_label = x_title
    p.yaxis.axis_label = y_title

    if x.value in discrete:
        p.xaxis.major_label_orientation = pd.np.pi / 4

    sz = 9
    if size.value != 'None':
        groups = pd.qcut(df[size.value].values, len(SIZES))
        sz = [SIZES[xx] for xx in groups.codes]

    c = "#31AADE"
    if color.value != 'None':
        groups = pd.qcut(df[color.value].values, len(COLORS))
        c = [COLORS[xx] for xx in groups.codes]
    p.circle(x=xs, y=ys, color=c, size=sz, line_color="white", alpha=0.6, hover_color='white', hover_alpha=0.5)

    return p


def update(attr, old, new):
    layout.children[1] = create_figure()


x = Select(title='X-Axis', value='mpg', options=columns)
x.on_change('value', update)

y = Select(title='Y-Axis', value='hp', options=columns)
y.on_change('value', update)

size = Select(title='Size', value='None', options=['None'] + quantileable)
size.on_change('value', update)

color = Select(title='Color', value='None', options=['None'] + quantileable)
color.on_change('value', update)

controls = widgetbox([x, y, color, size], width=200)
layout = row(controls, create_figure())

curdoc().add_root(layout)
curdoc().title = "Crossfilter"

Flask脚本：

#app.py
import subprocess
import atexit
from flask import render_template, render_template_string, Flask
from bokeh.embed import autoload_server
from bokeh.client import pull_session

app = Flask(__name__)

bokeh_process = subprocess.Popen(
    ['bokeh', 'serve','--allow-websocket-origin=localhost:5000','bokeh_plot.py'], stdout=subprocess.PIPE)

@atexit.register
def kill_server():
    bokeh_process.kill()

@app.route("/")
def index():
    session=pull_session(app_path="/bokeh_plot")
    bokeh_script=autoload_server(None,app_path="/bokeh_plot",session_id=session.id)
    return render_template("index.html", bokeh_script=bokeh_script)

if __name__ == "__main__":
    print("STARTED")
    app.run(debug=True)

index.html模板：

<!DOCTYPE html>
<html lang="en">
    <head>
        <style>
            @import url(https://fonts.googleapis.com/css?family=Noto+Sans);
            body {
              font-family: 'Noto Sans', sans-serif;
              -webkit-font-smoothing: antialiased;
              text-rendering: optimizeLegibility;
              color: #fff;
              background: #2F2F2F;
             }
        </style>
        <meta charset="utf-8">
        <title>Bokeh Crossfilter Example</title>
    </head>
    <body>
      <p> This is your great site<p>
      <div class="bk-root">
        {{ bokeh_script|safe }}
      </div>
    </body>
</html>

这就是我从heroku日志中得到的。请注意，那里有Cannot start Bokeh server, port 5006 is already in use"行。

heroku[web.1]: State changed from down to starting
heroku[web.1]: Unidling
heroku[web.1]: Starting process with command `gunicorn app:app`
app[web.1]: [2016-07-25 09:32:40 +0000] [3] [INFO] Starting gunicorn 19.6.0
app[web.1]: [2016-07-25 09:32:40 +0000] [3] [INFO] Listening at: http://0.0.0.0:48905 (3)
app[web.1]: [2016-07-25 09:32:40 +0000] [3] [INFO] Using worker: sync
app[web.1]: [2016-07-25 09:32:40 +0000] [7] [INFO] Booting worker with pid: 7
app[web.1]: [2016-07-25 09:32:40 +0000] [8] [INFO] Booting worker with pid: 8
heroku[web.1]: State changed from starting to up
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1641, in full_dispatch_request"
app[web.1]: Traceback (most recent call last):
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1988, in wsgi_app"
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1544, in handle_user_exception"
app[web.1]:     rv = self.handle_user_exception(e)
"app[web.1]: [2016-07-25 09:32:44,050] ERROR in app: Exception on / [GET]"
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/_compat.py"", line 33, in reraise"
app[web.1]:     response = self.full_dispatch_request()
"app[web.1]:     reraise(exc_type, exc_value, tb)"
app[web.1]:     raise value
"app[web.1]: OSError: Cannot pull session document because we failed to connect to the server (to start the server, try the 'bokeh serve' command)"
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1639, in full_dispatch_request"
app[web.1]:     rv = self.dispatch_request()
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1625, in dispatch_request"
app[web.1]:     return self.view_functions[rule.endpoint](**req.view_args)
"app[web.1]:   File ""/app/app.py"", line 37, in index"
"app[web.1]:     session=pull_session(app_path=""/bokeh_plot"")"
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/bokeh/client/session.py"", line 112, in pull_session"
app[web.1]:     session.pull()
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/bokeh/client/session.py"", line 231, in pull"
app[web.1]:     rv = self.handle_user_exception(e)
"app[web.1]:     raise IOError(""Cannot pull session document because we failed to connect to the server (to start the server, try the 'bokeh serve' command)"")"
app[web.1]: ERROR:app:Exception on / [GET]
app[web.1]: Traceback (most recent call last):
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1988, in wsgi_app"
app[web.1]:     response = self.full_dispatch_request()
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1641, in full_dispatch_request"
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/_compat.py"", line 33, in reraise"
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1625, in dispatch_request"
app[web.1]:     raise value
app[web.1]:     rv = self.dispatch_request()
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1639, in full_dispatch_request"
app[web.1]:     return self.view_functions[rule.endpoint](**req.view_args)
"app[web.1]:   File ""/app/app.py"", line 37, in index"
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/flask/app.py"", line 1544, in handle_user_exception"
"app[web.1]:     reraise(exc_type, exc_value, tb)"
"app[web.1]:     session=pull_session(app_path=""/bokeh_plot"")"
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/bokeh/client/session.py"", line 112, in pull_session"
app[web.1]:     session.pull()
"app[web.1]:   File ""/app/.heroku/python/lib/python3.5/site-packages/bokeh/client/session.py"", line 231, in pull"
"app[web.1]:     raise IOError(""Cannot pull session document because we failed to connect to the server (to start the server, try the 'bokeh serve' command)"")"
"app[web.1]: OSError: Cannot pull session document because we failed to connect to the server (to start the server, try the 'bokeh serve' command)"
"heroku[router]: at=info method=GET path=""/"" host=bokehapp.herokuapp.com request_id=f60be826-3fba-4eab-b18f-aa0eb822ebdd fwd=""217.73.139.64"" dyno=web.1 connect=2ms service=77ms status=500 bytes=456"
"app[web.1]: 2016-07-25 09:32:44,637 Starting Bokeh server on port 5006 with applications at paths ['/bokeh_plot']"
**"app[web.1]: 2016-07-25 09:32:44,683 Cannot start Bokeh server, port 5006 is already in use"**
"app[web.1]: 2016-07-25 09:32:44,681 Starting Bokeh server version 0.12.0"
"app[web.1]: 2016-07-25 09:32:44,637 Starting Bokeh server with process id: 26"
"app[web.1]: 2016-07-25 09:32:44,620 Starting Bokeh server version 0.12.0"
"app[web.1]: 2016-07-25 09:32:55,074 WebSocket connection opened"
"app[web.1]: 2016-07-25 09:32:55,187 ServerConnection created"
"heroku[router]: at=info method=GET path=""/"" host=bokehapp.herokuapp.com request_id=41493fd5-aed9-4198-b063-652f93cee49e fwd=""217.73.139.64"" dyno=web.1 connect=0ms service=550ms status=200 bytes=1066"

我在网上拼命寻找答案，但没有找到任何有关如何部署包含散景服务器应用程序的烧瓶应用程序的内容。所以，如果有人能够提供答案，这篇文章可能是一个很好的资源。

我相信密钥位于调用散景服务器的app.py文件的子流程行中，但我对Web服务的了解有限，无法弄清楚如何使其工作。有什么想法吗？

编辑1 ：bigreddot建议将--allow-websocket-origin的值更改为应用的网址。所以，我确实将localhost：5000更改为bokehapp.herokuapp.com。这似乎解决了IOError：无法放置会话文档。但是，图表仍然没有显示。以下是我从Heroku获得的新日志：

heroku[slug-compiler]: Slug compilation finished
heroku[slug-compiler]: Slug compilation started
heroku[web.1]: State changed from down to starting
heroku[web.1]: Starting process with command `gunicorn app:app`
app[web.1]: [2016-07-25 15:02:50 +0000] [3] [INFO] Using worker: sync
app[web.1]: [2016-07-25 15:02:50 +0000] [7] [INFO] Booting worker with pid: 7
app[web.1]: [2016-07-25 15:02:50 +0000] [3] [INFO] Starting gunicorn 19.6.0
app[web.1]: [2016-07-25 15:02:50 +0000] [3] [INFO] Listening at: http://0.0.0.0:23620 (3)
app[web.1]: [2016-07-25 15:02:50 +0000] [8] [INFO] Booting worker with pid: 8
heroku[api]: Release v7 created by adiadi@gmail.com
heroku[api]: Deploy be12fcc by adiadi@gmail.com
heroku[web.1]: State changed from starting to up
"app[web.1]: 2016-07-25 15:02:55,278 Starting Bokeh server with process id: 25"
"app[web.1]: 2016-07-25 15:02:55,261 Starting Bokeh server version 0.12.0"
"app[web.1]: 2016-07-25 15:02:55,276 Starting Bokeh server version 0.12.0"
"app[web.1]: 2016-07-25 15:02:55,284 Cannot start Bokeh server, port 5006 is already in use"
"app[web.1]: 2016-07-25 15:02:55,278 Starting Bokeh server on port 5006 with applications at paths ['/bokeh_plot']"
"app[web.1]: 2016-07-25 15:03:14,375 WebSocket connection opened"
"app[web.1]: 2016-07-25 15:03:15,029 ServerConnection created"
"heroku[router]: at=info method=GET path=""/"" host=bokehapp.herokuapp.com request_id=5e7a06ad-4526-4304-b00e-0c37979ab751 fwd=""109.236.33.234"" dyno=web.1 connect=1ms service=3778ms status=200 bytes=1066"
"app[web.1]: 2016-07-25 15:03:59,253 ServerConnection created"
"app[web.1]: 2016-07-25 15:03:59,133 WebSocket connection opened"

编辑2 ：在将-log-level = debug传递给子进程后，一些甚至更多的日志：

heroku[slug-compiler]: Slug compilation started
heroku[slug-compiler]: Slug compilation finished
heroku[api]: Deploy 9c2fefa by adiadi@gmail.com
heroku[api]: Release v12 created by adiadi@gmail.com
heroku[web.1]: Restarting
heroku[web.1]: State changed from up to starting
heroku[web.1]: Stopping all processes with SIGTERM
app[web.1]: [2016-07-25 21:53:37 +0000] [3] [INFO] Handling signal: term
app[web.1]: [2016-07-25 21:53:37 +0000] [7] [INFO] Worker exiting (pid: 7)
app[web.1]: [2016-07-25 21:53:38 +0000] [3] [INFO] Shutting down: Master
app[web.1]: [2016-07-25 21:53:37 +0000] [8] [INFO] Worker exiting (pid: 8)
heroku[web.1]: Process exited with status 0
heroku[web.1]: Starting process with command `gunicorn app:app`
app[web.1]: [2016-07-25 21:53:53 +0000] [3] [INFO] Starting gunicorn 19.6.0
app[web.1]: [2016-07-25 21:53:53 +0000] [3] [INFO] Using worker: sync
app[web.1]: [2016-07-25 21:53:53 +0000] [8] [INFO] Booting worker with pid: 8
app[web.1]: [2016-07-25 21:53:53 +0000] [7] [INFO] Booting worker with pid: 7
app[web.1]: [2016-07-25 21:53:53 +0000] [3] [INFO] Listening at: http://0.0.0.0:41934 (3)
heroku[web.1]: State changed from starting to up
"app[web.1]: 2016-07-25 21:53:58,821 Allowed Host headers: ['localhost:5006']"
"app[web.1]: 2016-07-25 21:53:58,821 These host origins can connect to the websocket: ['bokehapp.herokuapp.com:80', 'localhost:5006']"
"app[web.1]: 2016-07-25 21:53:58,821 Patterns are:"
"app[web.1]: 2016-07-25 21:53:58,821 Starting Bokeh server version 0.12.0"
"app[web.1]: 2016-07-25 21:53:58,823     {'application_context': <bokeh.server.application_context.ApplicationContext object at 0x7f7bf7dd51d0>,"
"app[web.1]: 2016-07-25 21:53:58,832     <class 'bokeh.server.views.ws.WSHandler'>,"
"app[web.1]: 2016-07-25 21:53:58,832    ('/bokeh_plot/autoload.js',"
"app[web.1]: 2016-07-25 21:53:58,831    ('/bokeh_plot/ws',"
"app[web.1]: 2016-07-25 21:53:58,832     <class 'bokeh.server.views.autoload_js_handler.AutoloadJsHandler'>,"
"app[web.1]: 2016-07-25 21:53:58,832     {'application_context': <bokeh.server.application_context.ApplicationContext object at 0x7f7bf7dd51d0>,"
"app[web.1]: 2016-07-25 21:53:58,832      'bokeh_websocket_path': '/bokeh_plot/ws'}),"
"app[web.1]: 2016-07-25 21:53:58,833     {'applications': {'/bokeh_plot': <bokeh.server.application_context.ApplicationContext object at 0x7f7bf7dd51d0>},"
"app[web.1]: 2016-07-25 21:53:58,823   [('/bokeh_plot/?',"
"app[web.1]: 2016-07-25 21:53:58,823     <class 'bokeh.server.views.doc_handler.DocHandler'>,"
"app[web.1]: 2016-07-25 21:53:58,823      'bokeh_websocket_path': '/bokeh_plot/ws'}),"
"app[web.1]: 2016-07-25 21:53:58,832     {'application_context': <bokeh.server.application_context.ApplicationContext object at 0x7f7bf7dd51d0>,"
"app[web.1]: 2016-07-25 21:53:58,833      'prefix': '',"
"app[web.1]: 2016-07-25 21:53:58,833      'use_redirect': True}),"
"app[web.1]: 2016-07-25 21:53:58,833    ('/static/(.*)',"
"app[web.1]: 2016-07-25 21:53:58,833     <class 'bokeh.server.views.static_handler.StaticHandler'>)]"
"app[web.1]: 2016-07-25 21:53:58,832      'bokeh_websocket_path': '/bokeh_plot/ws'}),"
"app[web.1]: 2016-07-25 21:53:58,861 Starting Bokeh server on port 5006 with applications at paths ['/bokeh_plot']"
"app[web.1]: 2016-07-25 21:53:58,832    ('/?',"
"app[web.1]: 2016-07-25 21:53:58,833     <class 'bokeh.server.views.root_handler.RootHandler'>,"
"app[web.1]: 2016-07-25 21:53:58,896 These host origins can connect to the websocket: ['bokehapp.herokuapp.com:80', 'localhost:5006']"
"app[web.1]: 2016-07-25 21:53:58,898   [('/bokeh_plot/?',"
"app[web.1]: 2016-07-25 21:53:58,899     {'application_context': <bokeh.server.application_context.ApplicationContext object at 0x7f8a84cb4b70>,"
"app[web.1]: 2016-07-25 21:53:58,896 Starting Bokeh server version 0.12.0"
"app[web.1]: 2016-07-25 21:53:58,897 Patterns are:"
"app[web.1]: 2016-07-25 21:53:58,899     <class 'bokeh.server.views.doc_handler.DocHandler'>,"
"app[web.1]: 2016-07-25 21:53:58,896 Allowed Host headers: ['localhost:5006']"
"app[web.1]: 2016-07-25 21:53:58,900     <class 'bokeh.server.views.autoload_js_handler.AutoloadJsHandler'>,"
"app[web.1]: 2016-07-25 21:53:58,899    ('/bokeh_plot/ws',"
"app[web.1]: 2016-07-25 21:53:58,899     <class 'bokeh.server.views.ws.WSHandler'>,"
"app[web.1]: 2016-07-25 21:53:58,899      'bokeh_websocket_path': '/bokeh_plot/ws'}),"
"app[web.1]: 2016-07-25 21:53:58,899     {'application_context': <bokeh.server.application_context.ApplicationContext object at 0x7f8a84cb4b70>,"
"app[web.1]: 2016-07-25 21:53:58,900      'bokeh_websocket_path': '/bokeh_plot/ws'}),"
"app[web.1]: 2016-07-25 21:53:58,900    ('/bokeh_plot/autoload.js',"
"app[web.1]: 2016-07-25 21:53:58,861 Starting Bokeh server with process id: 25"
"app[web.1]: 2016-07-25 21:53:58,900     {'application_context': <bokeh.server.application_context.ApplicationContext object at 0x7f8a84cb4b70>,"
"app[web.1]: 2016-07-25 21:53:58,900      'bokeh_websocket_path': '/bokeh_plot/ws'}),"
"app[web.1]: 2016-07-25 21:53:58,901      'use_redirect': True}),"
"app[web.1]: 2016-07-25 21:53:58,900    ('/?',"
"app[web.1]: 2016-07-25 21:53:58,901    ('/static/(.*)',"
"app[web.1]: 2016-07-25 21:53:58,901     <class 'bokeh.server.views.static_handler.StaticHandler'>)]"
"app[web.1]: 2016-07-25 21:53:58,904 Cannot start Bokeh server, port 5006 is already in use"
"app[web.1]: 2016-07-25 21:53:58,900     <class 'bokeh.server.views.root_handler.RootHandler'>,"
"app[web.1]: 2016-07-25 21:53:58,901     {'applications': {'/bokeh_plot': <bokeh.server.application_context.ApplicationContext object at 0x7f8a84cb4b70>},"
"app[web.1]: 2016-07-25 21:53:58,901      'prefix': '',"
"app[web.1]: 2016-07-25 21:54:13,880 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:54:13,880 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:54:43,870 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:54:43,869 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:54:58,870 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:54:58,869 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:55:13,862 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:55:13,862 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:55:28,864 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:55:28,863 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:55:43,864 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:55:43,865 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:55:58,862 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:55:58,862 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:56:13,876 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:56:13,877 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:56:28,864 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:56:28,865 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:56:43,875 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:56:43,876 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:56:58,872 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:56:58,872 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:57:13,863 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:57:13,862 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:57:28,872 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:57:28,872 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:57:43,868 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:57:43,867 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:57:58,863 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:57:58,864 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:58:13,879 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:58:13,880 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:58:28,873 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:58:28,874 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:58:43,872 [pid 25]   /bokeh_plot has 0 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:58:43,871 [pid 25] 0 clients connected"
"app[web.1]: 2016-07-25 21:58:49,718 WebSocket connection opened"
"app[web.1]: 2016-07-25 21:58:50,223 Sending pull-doc-reply from session 'Q4LGpWidke5G85sboBiRPMazzPfwOwTDMirNrDsTY3OL'"
"app[web.1]: 2016-07-25 21:58:50,177 Receiver created for Protocol('1.0')"
"app[web.1]: 2016-07-25 21:58:50,178 ServerHandler created for Protocol('1.0')"
"app[web.1]: 2016-07-25 21:58:50,178 ServerConnection created"
"heroku[router]: at=info method=GET path=""/"" host=bokehapp.herokuapp.com request_id=15fc6908-1031-4d88-86cc-8048d6195a6f fwd=""109.236.47.207"" dyno=web.1 connect=1ms service=1341ms status=200 bytes=1066"
"app[web.1]: 2016-07-25 21:58:58,864 [pid 25]   /bokeh_plot has 1 sessions with 0 unused"
"app[web.1]: 2016-07-25 21:58:58,863 [pid 25] 1 clients connected"

Answer 1

请检查this link

作者建议使用Bokeh组件方法生成将嵌入.html模板的脚本。

不确定它是否仍需要两个网络工作者，因为我正在努力使我的应用程序也在Heroku上工作。

将部署到Flaoku的Bokeh服务器图集部署到Heroku

1 个答案: