chore: update redis config

public/typo3conf/AdditionalConfiguration.php

@@ -47,22 +47,42 @@ if (getenv('IS_DDEV_PROJECT') == 'true') {
     );
 }
 
-$GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['cache_pages'] = [
+// Fail fast instead of blocking indefinitely when redis is unreachable.
+$redisOptions['connectionTimeout'] = 2;
+
+// Note: the cache identifiers must stay unprefixed ('pages', not 'cache_pages'). These
+// assignments replace the definitions from LocalConfiguration.php wholesale, so 'groups'
+// and the compression/lifetime options have to be repeated here.
+$GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['pages'] = [
     'frontend' => \TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::class,
     'backend' => \TYPO3\CMS\Core\Cache\Backend\RedisBackend::class,
-    'options' => $redisOptions + ['database' => 0],
+    'options' => $redisOptions + [
+        'database' => 0,
+        'compression' => true,
+    ],
+    'groups' => ['pages'],
 ];
 
-$GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['cache_hash'] = [
+$GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['hash'] = [
     'frontend' => \TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::class,
     'backend' => \TYPO3\CMS\Core\Cache\Backend\RedisBackend::class,
-    'options' => $redisOptions + ['database' => 1],
+    'options' => $redisOptions + [
+        'database' => 1,
+    ],
+    'groups' => ['pages'],
 ];
 
-$GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['cache_rootline'] = [
+// Own database: RedisBackend::flush() issues FLUSHDB and the keys carry no per-cache
+// prefix, so two caches sharing a database flush each other.
+$GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']['rootline'] = [
     'frontend' => \TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::class,
     'backend' => \TYPO3\CMS\Core\Cache\Backend\RedisBackend::class,
-    'options' => $redisOptions + ['database' => 1],
+    'options' => $redisOptions + [
+        'database' => 2,
+        'compression' => true,
+        'defaultLifetime' => 2592000,
+    ],
+    'groups' => ['pages'],
 ];
 
 // suppress php deprecation warnings flooding typo3 logs