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我能够在Flask中嵌入散景服务器图。这是在本地主机上输出：在Heroku中部署一个嵌入到Flask中的散景服务器图
问题是我不能够使在Heroku这项工作。我所显示的只是文字“这是你的伟大网站”。
因此，该应用程序由三个文件组成。
还有一个包含图形脚本：
#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"
烧瓶脚本：
#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)
而且index.html的模板：
<!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>
这是我从获得heroku日志。请注意，那里有一条Cannot start Bokeh server, port 5006 is already in use"线路。
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"
我都拼命搜索在网络上的答案，但还没有找到如何部署内部包含一个背景虚化的服务器应用程序的烧瓶中应用什么。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。
我相信关键在于app.py文件中的subprocess行中调用了散景服务器，但是我在web服务方面的知识有限，所以无法弄清楚如何使其工作。任何想法？
编辑1：bigreddot建议将--allow-websocket-origin的值更改为应用程序的url。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，图表仍然不显示。下面是新日志，我从Heroku的获得：
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 [email protected]
heroku[api]: Deploy be12fcc by [email protected]
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：通过--log级=调试后，有些人甚至更多的日志子过程：
heroku[slug-compiler]: Slug compilation started
heroku[slug-compiler]: Slug compilation finished
heroku[api]: Deploy 9c2fefa by [email protected]
heroku[api]: Release v12 created by [email protected]
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"
那么一个问题是'allow-websocket-origin'告诉Bokeh服务器可以启动来自“其他地方”的websocket连接（例如，某人通过嵌入式网页访问Bokeh服务器，而不是直接导航到散景服务器）。没有人会从'localhost'发起任何事情，因此价值不可能是正确的。它应该是公共ip /主机名，人们将导航到看到你的烧瓶应用程序页面。 – bigreddot
可能还有其他问题，如果没有看到Bokeh服务器日志，也很难诊断。 – bigreddot
@bigreddot非常感谢。我将'localhost：5000'更改为'bokehapp.herokuapp.com'，这是该应用的网址。这摆脱了'IOError：无法拉会议文件'。它也摆脱了我访问bokehapp.herokuapp.com时发生的内部服务器错误。但是，该图表仍未在网页上显示。我不确定在哪里可以看到Bokeh服务器日志。我只知道heroku日志命令。我编辑了问题，以便在提出更改后显示最新日志。如果你向我展示如何进一步诊断，这将会很棒。 – multigoodverse