$this->kernel->invalidateContainer(); increases Drush/Drupal bootstrap by 300%

[OnkelTem]

I was debugging Drush 8.1.10 bootstrap to figure out why it works slower then before even on basic operations like drush status and came up to the reason. Now before Drush starts Drupal kernel in \Drush\Boot\DrupalBoot8::bootstrap_drupal_full it invalidates the container making Drupal to build it from scratch.

I'm sure this has been done for a good reason but I can't find appropriate issue. But one thing worries me: it is a huge makeweight to every drush run. Look, before we could use Drush w/o this invalidation and it worked just fine. Now we need to rebuild container for every even tiny operation which costs us 250-300% of execution time grow (calculated on drush status).

So my question is: do we really needed it?

Can't it be at least OPTIONAL and enabled by some --force-rebuild global switch? And even without one, we can always do drush cr if it's really needed.

[weitzman]

Thanks for working on speeding up Drush. Could you submit a PR and see if tests still pass?

[OnkelTem]

I'm not sure is it ok to just roll it back because there was a whole commit dedicated to exactly this change (though it doesn't seem to be logged here on github):

$ git show c288ed8 
commit c288ed8c71025ee35b2281e73781d6d6baa5c385
Author: Greg Anderson <[email protected]>
Date:   Fri May 6 15:14:49 2016 -0700

    Taking rebuild container out just caused other problems; perhaps $kernel->invalidateContainer() will do the trick.

diff --git a/lib/Drush/Boot/DrupalBoot8.php b/lib/Drush/Boot/DrupalBoot8.php
index 2323d1e..4185964 100644
--- a/lib/Drush/Boot/DrupalBoot8.php
+++ b/lib/Drush/Boot/DrupalBoot8.php
@@ -142,6 +142,7 @@ class DrupalBoot8 extends DrupalBoot {
     if (!drush_get_context('DRUSH_QUIET', FALSE)) {
       ob_start();
     }
+    $this->kernel->invalidateContainer();
     $this->kernel->boot();
     $this->kernel->prepareLegacyRequest($this->request);
     if (!drush_get_context('DRUSH_QUIET', FALSE)) {

Then in the master branch it appears in 6c09849
Here is the line: 6c09849#diff-517ac014255a6c264d4f6a240dbe0e98R146. This was part of PR #2103

So the patch is actually simple. I'd prefer asking @greg-1-anderson about the reason and is it appropriate to roll the change back?

[greg-1-anderson]

I don't remember exactly what the reasoning was here, but without invalidateContainer(), in @weitzman's PR, we get:

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "drush.service.consolecommands". in Drupal\Component\DependencyInjection\Container->get() (line 157 of /tmp/drush-sut/web/core/lib/Drupal/Component/DependencyInjection/Container.php).

I guess Drush 8 doesn't do this because it isn't trying to add services to the container. Maybe there is some other way we could do this. Drupal Console makes heavy use of services; there might be some info to glean there.

[weitzman]

@OnkelTem If you could help get our tests to pass without the invalidateContainer() call it would be much appreciated.

[OnkelTem]

@weitzman Ok, I'll try to figure it out today.

[develCuy]

@greg-1-anderson I get the same when trying to run drush 8.1.11 from /usr/local/src/...

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "drush.service.consolecommands". in                                        [error]
Drupal\Component\DependencyInjection\Container->get() (line 157 of /var/www/drupal8/core/lib/Drupal/Component/DependencyInjection/Container.php) #0
/usr/local/src/composer/vendor/drush/drush/lib/Drush/Boot/DrupalBoot8.php(163): Drupal\Component\DependencyInjection\Container->get('drush.service.c...')
#1 /usr/local/src/composer/vendor/drush/drush/includes/bootstrap.inc(354): Drush\Boot\DrupalBoot8->bootstrap_drupal_full()
#2 /usr/local/src/composer/vendor/drush/drush/includes/bootstrap.inc(473): drush_bootstrap(5, 5)
#3 /usr/local/src/composer/vendor/drush/drush/lib/Drush/Boot/BaseBoot.php(53): drush_bootstrap_to_phase(5)
#4 /usr/local/src/composer/vendor/drush/drush/includes/preflight.inc(66): Drush\Boot\BaseBoot->bootstrap_and_dispatch()
#5 /usr/local/src/composer/vendor/drush/drush/drush.php(12): drush_main()
#6 {main}.
Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "drush.service.consolecommands". in /var/www/drupal8/core/lib/Drupal/Component/Dep
endencyInjection/Container.php on line 157 #0 /usr/local/src/composer/vendor/drush/drush/lib/Drush/Boot/DrupalBoot8.php(163): Drupal\Component\DependencyInjection\Container->get('drush.service.c...')
#1 /usr/local/src/composer/vendor/drush/drush/includes/bootstrap.inc(354): Drush\Boot\DrupalBoot8->bootstrap_drupal_full()
#2 /usr/local/src/composer/vendor/drush/drush/includes/bootstrap.inc(473): drush_bootstrap(5, 5)
#3 /usr/local/src/composer/vendor/drush/drush/lib/Drush/Boot/BaseBoot.php(53): drush_bootstrap_to_phase(5)
#4 /usr/local/src/composer/vendor/drush/drush/includes/preflight.inc(66): Drush\Boot\BaseBoot->bootstrap_and_dispatch()
#5 /usr/local/src/composer/vendor/drush/drush/drush.php(12): drush_main()
#6 {main}
Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "drush.service.consolecommands". in Drupal\Component\DependencyInjection\Container->ge
t() (line 157 of /var/www/drupal8/core/lib/Drupal/Component/DependencyInjection/Container.php).
Drush command terminated abnormally due to an unrecoverable error.

Bug is gone when reverting to 8.1.10

[scubafly]

Got exactly the same message as develCuy with drush 8.1.11 when I run drush status
If anybody needs me to try something to fix this, let me know.

[melodyjuranville]

Hello,
Got the same message today, when I run drush status :

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "drush.service.consolecommands". in Drupal\Component\DependencyInjection\Container->get() (line 157 of [...]/core/lib/Drupal/Component/DependencyInjection/Container.php).

Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "drush.service.consolecommands". in [...]/core/lib/Drupal/Component/DependencyInjection/Container.php on line 157

Drush command terminated abnormally due to an unrecoverable error.

I can't progress anymore on my project, anybody have find a fix ?

Thanks for your help.