Detailed map traversal, teach you to master the complex gremlin query debugging method>>>
The test server failed to call the interface without any reason. The return is always empty. So, in curl_ Post method printing exception
curl_error
Problem with the SSL CA cert (path?access rights?)
It’s strange that the code is covered from the formal service to the test service, and the exception remains the same. But there is no problem with the official service
You can also return normally with postman
Online search, called the installation of CA certificate
yum reinstall openssl ca-certificates -y
Direct error reporting
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:
No module named yum
Please install a package which provides this module, or
verify that the module is installed correctly.
It's possible that the above module doesn't match the
current version of Python, which is:
2.7.10 (default, Apr 2 2018, 10:49:48)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-18)]
If you cannot solve this problem yourself, please go to
the yum faq at:
http://yum.baseurl.org/wiki/Faq
Use the command to see if it already exists
ll /etc/pki/tls/certs/ca-bundle.crt
It turns out that the official service is
-rw-r--r-- 1 root root 884985 May 10 2017 /etc/pki/tls/certs/ca-bundle.crt
The test suit is
-rw-r--r--. 1 root root 786601 Jun 24 2014 /etc/pki/tls/certs/ca-bundle.crt
It doesn’t look new enough. Try to find the update command. Before I could find it, I saw that the recommended solution was to restart. I suddenly remembered that I had dealt with such a problem before, so I decided to restart Apache
service httpd restart
Problem solving