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Where is the service container compiled to in Drupal 8, in the database or in a file?

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  • What do you mean by "service file compiled"? Are you referring to D8 service objects?
    – Brian Young
    Jan 28, 2017 at 23:56
  • Yes, i think that Drupal like symfony compiled each services interpreting the compiler pass ecc...
    – BOES
    Jan 29, 2017 at 0:07
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    In a protected directory inside the site's configured files path php/**/ unless cache is turned off then it won't use it (i.e. for development)
    – mradcliffe
    Jan 29, 2017 at 0:31
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    @mradcliffe, that's the normal Symfony way to do it, compile the service container to a single php file. For better performance Drupal as changed this and stores it now in database in the table cache_container. How to take a look inside: drupal.org/node/2540430
    – 4uk4
    Jan 29, 2017 at 9:04
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    This appears to have been closed a bit prematurely, @4k4 care to post that as an answer?
    – Clive ♦
    Jan 29, 2017 at 22:33

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As @mradcliffe described in a commment, the normal Symfony way to compile and cache the service container is a single php file. Drupal used this until Sep. 2015. If you have an older installation, you still find the compiled container in php/**/, because it was never deleted by newer versions.

For better performance Drupal has changed this and stores it now in database in the table cache_container. The change record and how to take a look inside the container to debug it:

Change record: The service container definition is now stored in the database by default

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