Issues With Python WSGI

D

devbydylan

New Member
#1
#1
I have followed the guides to setup WSGI including this one.
I'm currently using the hello world script and keep getting a 503 error.
I'm running on Ubuntu 16.04, no special install of the OS with latest stable OpenLiteSpeed installed (1.4.28) and wsgi-lsapi 1.2
Any help/guidance would be appreciated.

This is my error.log

Code: 
2017-12-15 12:28:21.510 [DEBUG] [*:8088] New connection from 24.129.75.36:1770.
2017-12-15 12:28:21.510 [DEBUG] [*:8088] 0 connections accepted!
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770] concurrent conn: 1
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770] NtwkIOLink::handleEvents() events=1!
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770] HttpSession::onReadEx(), state: 1!
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770] readToHeaderBuf().
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770] Read from client: 437
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770] Read 437 bytes to header buffer.
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770] processHeader() returned 0, header state: 3.
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example] NtwkIOLink::suspendRead()...
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example] Find context with URI: [/], location: [/usr/local/lsws/Example/html/].
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example] Check Symbolic link for [/usr/local/lsws/Example/html/hw2.wsgi] is successful, access to target [/usr/local/lsws/Example/html/hw2.wsgi] is gr$
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example] Find handler [wsgiApp] for [.wsgi].
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example] processContextPath() returned 0.
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example] Run lsapi processor.
2017-12-15 12:28:21.510 [DEBUG] [uds://tmp/lshttpd/lswsgi.sock] request [24.129.75.36:1770#Example:lsapi] is assigned with connection!
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] reconnect()
2017-12-15 12:28:21.510 [DEBUG] [wsgiApp] add child process pid: 9482
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onWrite()
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request header is done
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::continueRead()
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request body done!
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::suspendWrite()
2017-12-15 12:28:21.510 [DEBUG] [*:8088] 1 connections accepted!
2017-12-15 12:28:21.526 [DEBUG] EdStream::handleEvent(), fd: 25, event: 25
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onRead()
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] LsapiConn::doRead()
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] Process packet header -1 bytes
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] Connection to [uds://tmp/lshttpd/lswsgi.sock] on request #1, confirmed 0, error: Connection reset by peer!
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] close()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] reconnect()
2017-12-15 12:28:21.527 [DEBUG] [wsgiApp] add child process pid: 9483
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onWrite()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request header is done
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::continueRead()
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request body done!
2017-12-15 12:28:21.510 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::suspendWrite()
2017-12-15 12:28:21.510 [DEBUG] [*:8088] 1 connections accepted!
2017-12-15 12:28:21.526 [DEBUG] EdStream::handleEvent(), fd: 25, event: 25
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onRead()
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] LsapiConn::doRead()
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] Process packet header -1 bytes
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] Connection to [uds://tmp/lshttpd/lswsgi.sock] on request #1, confirmed 0, error: Connection reset by peer!
2017-12-15 12:28:21.526 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] close()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] reconnect()
2017-12-15 12:28:21.527 [DEBUG] [wsgiApp] add child process pid: 9483
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onWrite()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request header is done
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::continueRead()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request body done!
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::suspendWrite()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] close()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] HttpExtConnector::tryRecover()...
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] Trying to recover from connection problem, attempt: #2!
2017-12-15 12:28:21.527 [DEBUG] [uds://tmp/lshttpd/lswsgi.sock] request [24.129.75.36:1770#Example:lsapi] is assigned with connection!
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] reconnect()
2017-12-15 12:28:21.527 [DEBUG] [wsgiApp] add child process pid: 9484
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onWrite()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request header is done
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::continueRead()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request body done!
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::suspendWrite()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onError()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onRead()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] LsapiConn::doRead()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] Process packet header 0 bytes
2017-12-15 12:28:21.540 [DEBUG] EdStream::handleEvent(), fd: 25, event: 25
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onRead()
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] LsapiConn::doRead()
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] Process packet header -1 bytes
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] Connection to [uds://tmp/lshttpd/lswsgi.sock] on request #1, confirmed 0, error: Connection reset by peer!
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] close()
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] reconnect()
2017-12-15 12:28:21.541 [DEBUG] [wsgiApp] add child process pid: 9486
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onWrite()
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request header is done
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::continueRead()
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request body done!
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::suspendWrite()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onError()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onRead()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] LsapiConn::doRead()
2017-12-15 12:28:21.527 [DEBUG] [24.129.75.36:1770#Example:lsapi] Process packet header 0 bytes
2017-12-15 12:28:21.540 [DEBUG] EdStream::handleEvent(), fd: 25, event: 25
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onRead()
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] LsapiConn::doRead()
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] Process packet header -1 bytes
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] Connection to [uds://tmp/lshttpd/lswsgi.sock] on request #1, confirmed 0, error: Connection reset by peer!
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] close()
2017-12-15 12:28:21.540 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] reconnect()
2017-12-15 12:28:21.541 [DEBUG] [wsgiApp] add child process pid: 9486
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::onWrite()
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request header is done
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::continueRead()
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] Request body done!
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] ExtConn::suspendWrite()
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] [ExtConn] close()
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] HttpExtConnector::tryRecover()...
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] NtwkIOLink::continueWrite()...
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] Write resumed!
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] NtwkIOLink::handleEvents() events=4!
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] HttpExtConnector::cleanUp() ...
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] Abort request...
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] Release ExtProcessor!
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] NtwkIOLink::suspendWrite()...
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] Write suspended
2017-12-15 12:28:21.541 [DEBUG] [24.129.75.36:1770#Example:lsapi] HttpSession::sendHttpError(), code = '503 Service Unavailable
'.
 
D

devbydylan

New Member
#3
#3
Thanks for the prompt response

This is my hello world,
Code: 
def application(environ, start_response):
        start_response('200 OK', [('Content-Type', 'text/plain')])
        return ['Hello World!\n']


This is the contents of my stderr.log, although these errors do not stem from running the code and were propogated sometime beforehand and I'm not sure when.
Code: 
Failed to open temp file for swapping: Permission denied
Failed to open temp file for swapping: Permission denied
Failed to open temp file for swapping: Permission denied
Failed to open temp file for swapping: Permission denied
 
D

devbydylan

New Member
#4
#4
This is my LiteSpeed SAPI App configuration
Code: 
Name: wsgiApp
Address: uds://tmp/lshttpd/lswsgi.sock
Max Connections: 50
Initial Request Timeout: 60
Retry Timeout: 15
Persistent Connection: Yes
Connection Keep-Alive Timeout: -1
Response Buffering: No
Auto Start: Yes
Command: /usr/local/lsws/fcgi-bin/lswsgi
Back Log: 100
Instances: 1
Run On Start Up: Yes
Max Idle Time: -1
Priority: 0
Memory Soft: 2044M
Memory Hard: 2048M
Process Soft Limit: 400
Process Hard Limit: 500
 
D

devbydylan

New Member
#8
#8
Tishu said:
Hello again,

If OLS is running under nobody:nobody, please chown /tmp/lshttpd with that. Restart OLS and check again.
Click to expand...
Thanks for the feedback,

Under my server configuration it says-
Code: 
Running As: user(nobody) : group(nogroup)
Should I assume my configuration is correct and there is another issue or could this be incorrect?
 
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