Web application could not be started by the Phusion Passenger application server - Redmine installation

Question

I've installed a redmine web application on a centOs 7, with postgresql 9.1 and using passenger. When I access the redmine application, the following error appears:

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Error ID: f4adae6a Details:

Web application could not be started by the Phusion Passenger application server.

Please read the Passenger log file (search for the Error ID) to find the details of the error.

When I access the erro_log file at /var/log/httpd/ it is like this:

[ E 2018-05-25 16:28:01.7581 24316/Td age/Cor/App/Implementation.cpp:221 ]: Could not spawn process for application /opt/redmine: An operating system error occurred while preparing to spawn an application process: Cannot create FIFO file /tmp/passenger.spawn.XXXXCTqsz4/response/finish: Permission denied (errno=13)
  Error ID: f4adae6a
  Error details saved to: /tmp/passenger-error-H1zmwo.html

[ E 2018-05-25 16:28:01.7609 24316/T6 age/Cor/Con/CheckoutSession.cpp:276 ]: [Client 1-2] Cannot checkout session because a spawning error occurred. The identifier of the error is f4adae6a. Please see earlier logs for details about the error.

It seems that, first of all, apache is not logging the error at /tmp/passenger-error-H1zmwo.html as it was supposed to do.

I've already tried to loossing the permissions to the /opt/redmine using the following guide HERE

I'm on redmine 3.4.3, ruby 2.3.1 and rails 4.2.8. Passenger 5.3.1

Do'nt know what to do anymore. Appreciate a little help. Any more info please ask me.

Answer 1

What you describe points very much to wrong filesystem permissions for /tmp

It should look like this:

    user@host:/$ ls -ld /tmp
    drwxrwxrwt 8 root root 4096 May 29 16:32 /tmp

If it does not try this (as root or via sudo):

    chmod 1777 /tmp