Change Details

# Memcache caching ## How to calculate infinite expiration timestamp 1. open SSH connection to a web server (or where the Memcache is installed) 2. run this command: ``` lang=bash (sleep 1; echo "stats"; sleep 1; echo "quit";) | telnet localhost 11211 | grep 'time' ``` Example output: ``` STAT uptime 61335 STAT time 1676435743 ``` 3. subtract the number after the `uptime` word from the number after the `time` word (e.g. `1676435743 - 61335 = 1676374408`) and remember this number ## How to determine key expiration 1. open SSH connection to a web server (or where the Memcache is installed) 2. run this command: ``` lang=bash (sleep 1; echo "stats cachedump slab_number_here 0"; sleep 1; echo "quit";) | telnet localhost 11211 | grep 'key_name_here' ``` Example output: ``` ITEM key_name_here [value_here b; timestamp_here s] ``` 3. if no data is returned try incrementing the `slab_number_here` parameter by 1 and running that command again 4. if the number in place of the `timestamp_here` text matches the infinite expiration timestamp, then the key will never expire 5. otherwise the key will expire at the given date/time ## How to determine every key expiration/presense in cache # same steps as above, but ommit the ` | grep 'key_name_here'` part of the command # iterate all slab numbers until no data between `Escape character is '^]'.` and `END` lines is returned ## How to clean the cache 1. if you have CentOS, then run the `systemctl restart memcached.service` command as `root` user on the server # Database caching ## How to determine key expiration # open the database (e.g. via phpMyAdmin) # execute the `SELECT LifeTime FROM SystemCache WHERE VarName = 'key_name_here';` database query # if you'll get `-1` it means, that the key won't automatically expire # if you'll get a timestamp it means, that the key will expire after that time ## How to determine every key expiration/presense in cache 1. same steps as above, but ommit the ` WHERE VarName = 'key_name_here'` part of the database query ## How to clean the cache # open the database (e.g. via phpMyAdmin) # run the `TRUNCATE SystemCache;` database query in the # Actual tests ## Testing clean install # perform a clean install via `/core/install.php` script # confirm, that at the `System Configuration` installation step the `Maximum Cache Duration (in days)` setting has initial value of `30` # change value to `25` and proceed with install # confirm, that after installation was done the `MaxCacheDuration` setting in the `/system/config.php` has value of `25` ## Testing an upgrade # remove the `$_CONFIG['Misc']['MaxCacheDuration'] = ...;` line in the `/system/config.php` file # open `/core/install.php` script of existing In-Portal installation # on the `Installation Maintenance` screen: * type `root` user login/password * select the `Upgrade In-Portal` radio button * press `Continue` # perform the upgrade # confirm, that after installation was done the `MaxCacheDuration` setting in the `/system/config.php` has value of `30` ## Testing "setCache" NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * set without expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_def_exp'); $application->setCache('key_with_def_exp', 'v1'); ``` * confirm (see instructions above), that "key_with_def_exp" key has expiration of 25 days (from the the time key was set via "setCache" method call) * set with expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_exp'); $application->setCache('key_with_exp', 'v2', 3600); ``` * confirm (see instructions above), that "key_with_exp" key has expiration of 1 hour (from the the time key was set via "setCache" method call) ## Testing "addCache" NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * add without expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_def_exp'); $application->addCache('key_with_def_exp', 'v1'); ``` * confirm (see instructions above), that "key_with_def_exp" key has expiration of 25 days (from the the time key was set via "addCache" method call) * add with expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_exp'); $application->addCache('key_with_exp', 'v2', 3600); ``` * confirm (see instructions above), that "key_with_exp" key has expiration of 1 hour (from the the time key was set via "addCache" method call) * add won't overwrite: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->addCache('key_with_exp', 'v3', 86400); echo $application->getCache('key_with_exp'); ``` * confirm, that both key value (that is shown on screen) and expiration (see instructions above) matches `$application->addCache('key_with_exp', 'v2', 3600);` command executed above this test ## Testing "setDBCache" * setup: * clean the database cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * set without expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteDBCache('db_key_with_def_exp'); $application->setDBCache('db_key_with_def_exp', 'v1'); ``` * confirm (see instructions above), that "db_key_with_def_exp" key has expiration of 25 days (from the the time key was set via "setDBCache" method call) * set with expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteDBCache('db_key_with_exp'); $application->setDBCache('db_key_with_exp', 'v2', 3600); ``` * confirm (see instructions above), that "db_key_with_exp" key has expiration of 1 hour (from the the time key was set via "setDBCache" method call) ## Testing internal caches expiration for Memcache NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * populate cache: * login to In-Portal admin console * open any category record for editing (to populate `master:StructureTree` key) * make some changes * save changed record to the database (to set category serial key) * visit the Front-End in another web browser tab (to populate `master:template_mapping`, `master:cms_menu` and `master:domains_parsed` keys) * confirm, that: * these keys have infinite expiration (the `1738250904` number might differ on your install): * `test` * `site_serial:1738250904` * `site_serial:1738250904:1:master:configs_parsed` * `site_serial:1738250904:1:master:last_cache_rebuild` * `site_serial:1738250904:1:master:StructureTree` * `site_serial:1738250904:1:master:template_mapping` * `site_serial:1738250904:1:master:cms_menu` * `site_serial:1738250904:1:master:sections_parsed` * `site_serial:1738250904:1:master:domains_parsed` * `site_serial:1738250904:1:master:config_files` * all other keys have an expiration of 25 days (with a few seconds margin) relative to the time they're set ## Testing internal caches expiration for DB cache * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * populate cache: * login to In-Portal admin console * open any category record for editing (to populate `StructureTree` key) * make some changes * save changed record to the database (to set category serial key) * visit the Front-End in another web browser tab (to populate `template_mapping`, `cms_menu` and `domains_parsed` keys) * confirm, that: * these keys have infinite expiration: * `configs_parsed` * `last_cache_rebuild` * `StructureTree` * `template_mapping` * `cms_menu` * `sections_parsed` * `domains_parsed` * `config_files` * all other keys have an expiration of 25 days (with a few seconds margin) relative to the time they're set ## Testing template fragment caching in Memcache has expiration cap NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * populate cache: # login to the Admin Console # go to the {nav Configuration > Website > Advanced} section # enable the `Enable Tag Caching` system setting # save changes # open the Front-End * confirm, that: * `site_serial:1738250904:1:parser_35334543` like keys (all numbers may vary) are present * they have an expiration of 25 days (with a few seconds margin) relative to the time they're set (page, that was setting them on the Front-End was accessed) ## Testing template fragment caching in Memcache can configure expiration NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * populate cache: # change `<inp2:m_Cache key="prefix:lang;skip_var:t,page,per_page,sort_by">` line in the `themes/advanced/platform/elements/header.elm.tpl` template to `<inp2:m_Cache key="prefix:lang;skip_var:t,page,per_page,sort_by" cache_timeout="3600">` # login to the Admin Console # go to the {nav Configuration > Website > Advanced} section # enable the `Enable Tag Caching` system setting # save changes # open the Front-End * confirm, that: * `site_serial:1738250904:1:parser_35334543` like keys (all numbers may vary) are present * they some of them now have an expiration of 1 hour (with a few seconds margin) relative to the time they're set (page, that was setting them on the Front-End was accessed)

# Memcache caching ## How to calculate infinite expiration timestamp 1. open SSH connection to a web server (or where the Memcache is installed) 2. run this command: ``` lang=bash (sleep 1; echo "stats"; sleep 1; echo "quit";) | telnet localhost 11211 | grep 'time' ``` Example output: ``` STAT uptime 61335 STAT time 1676435743 ``` 3. subtract the number after the `uptime` word from the number after the `time` word (e.g. `1676435743 - 61335 = 1676374408`) and remember this number ## How to determine key expiration 1. open SSH connection to a web server (or where the Memcache is installed) 2. run this command (replace `slab_number_here` with a positive number starting from 1; replace `key_name_here` with a key name you want to get info about): ``` lang=bash (sleep 1; echo "stats cachedump slab_number_here 0"; sleep 1; echo "quit";) | telnet localhost 11211 | grep 'key_name_here' ``` Example output: ``` ITEM key_name_here [value_here b; timestamp_here s] ``` 3. if no data is returned try incrementing the number used in place of the `slab_number_here` text by 1 and running that command again 4. if the number in place of the `timestamp_here` text matches the infinite expiration timestamp, then the key will never expire 5. otherwise the key will expire at the given date/time ## How to determine every key expiration/presense in cache # same steps as above, but ommit the ` | grep 'key_name_here'` part of the command # iterate all slab numbers until no data between `Escape character is '^]'.` and `END` lines is returned ## How to clean the cache 1. if you have CentOS, then run the `systemctl restart memcached.service` command as `root` user on the server # Database caching ## How to determine key expiration # open the database (e.g. via phpMyAdmin) # execute the `SELECT LifeTime FROM SystemCache WHERE VarName = 'key_name_here';` database query # if you'll get `-1` it means, that the key won't automatically expire # if you'll get a timestamp it means, that the key will expire after that time ## How to determine every key expiration/presense in cache 1. same steps as above, but ommit the ` WHERE VarName = 'key_name_here'` part of the database query ## How to clean the cache # open the database (e.g. via phpMyAdmin) # run the `TRUNCATE SystemCache;` database query in the # Actual tests ## Testing clean install # perform a clean install via `/core/install.php` script # confirm, that at the `System Configuration` installation step the `Maximum Cache Duration (in days)` setting has initial value of `30` # change value to `25` and proceed with install # confirm, that after installation was done the `MaxCacheDuration` setting in the `/system/config.php` has value of `25` ## Testing an upgrade # remove the `$_CONFIG['Misc']['MaxCacheDuration'] = ...;` line in the `/system/config.php` file # open `/core/install.php` script of existing In-Portal installation # on the `Installation Maintenance` screen: * type `root` user login/password * select the `Upgrade In-Portal` radio button * press `Continue` # perform the upgrade # confirm, that after installation was done the `MaxCacheDuration` setting in the `/system/config.php` has value of `30` ## Testing "setCache" NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * set without expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_def_exp'); $application->setCache('key_with_def_exp', 'v1'); ``` * confirm (see instructions above), that "key_with_def_exp" key has expiration of 25 days (from the the time key was set via "setCache" method call) * set with expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_exp'); $application->setCache('key_with_exp', 'v2', 3600); ``` * confirm (see instructions above), that "key_with_exp" key has expiration of 1 hour (from the the time key was set via "setCache" method call) ## Testing "addCache" NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * add without expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_def_exp'); $application->addCache('key_with_def_exp', 'v1'); ``` * confirm (see instructions above), that "key_with_def_exp" key has expiration of 25 days (from the the time key was set via "addCache" method call) * add with expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_exp'); $application->addCache('key_with_exp', 'v2', 3600); ``` * confirm (see instructions above), that "key_with_exp" key has expiration of 1 hour (from the the time key was set via "addCache" method call) * add won't overwrite: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->addCache('key_with_exp', 'v3', 86400); echo $application->getCache('key_with_exp'); ``` * confirm, that both key value (that is shown on screen) and expiration (see instructions above) matches `$application->addCache('key_with_exp', 'v2', 3600);` command executed above this test ## Testing "setDBCache" * setup: * clean the database cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * set without expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteDBCache('db_key_with_def_exp'); $application->setDBCache('db_key_with_def_exp', 'v1'); ``` * confirm (see instructions above), that "db_key_with_def_exp" key has expiration of 25 days (from the the time key was set via "setDBCache" method call) * set with expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteDBCache('db_key_with_exp'); $application->setDBCache('db_key_with_exp', 'v2', 3600); ``` * confirm (see instructions above), that "db_key_with_exp" key has expiration of 1 hour (from the the time key was set via "setDBCache" method call) ## Testing internal caches expiration for Memcache NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * populate cache: * login to In-Portal admin console * open any category record for editing (to populate `master:StructureTree` key) * make some changes * save changed record to the database (to set category serial key) * visit the Front-End in another web browser tab (to populate `master:template_mapping`, `master:cms_menu` and `master:domains_parsed` keys) * confirm, that: * these keys have infinite expiration (the `1738250904` number might differ on your install): * `test` * `site_serial:1738250904` * `site_serial:1738250904:1:master:configs_parsed` * `site_serial:1738250904:1:master:last_cache_rebuild` * `site_serial:1738250904:1:master:StructureTree` * `site_serial:1738250904:1:master:template_mapping` * `site_serial:1738250904:1:master:cms_menu` * `site_serial:1738250904:1:master:sections_parsed` * `site_serial:1738250904:1:master:domains_parsed` * `site_serial:1738250904:1:master:config_files` * all other keys have an expiration of 25 days (with a few seconds margin) relative to the time they're set ## Testing internal caches expiration for DB cache * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * populate cache: * login to In-Portal admin console * open any category record for editing (to populate `StructureTree` key) * make some changes * save changed record to the database (to set category serial key) * visit the Front-End in another web browser tab (to populate `template_mapping`, `cms_menu` and `domains_parsed` keys) * confirm, that: * these keys have infinite expiration: * `configs_parsed` * `last_cache_rebuild` * `StructureTree` * `template_mapping` * `cms_menu` * `sections_parsed` * `domains_parsed` * `config_files` * all other keys have an expiration of 25 days (with a few seconds margin) relative to the time they're set ## Testing template fragment caching in Memcache has expiration cap NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * populate cache: # login to the Admin Console # go to the {nav Configuration > Website > Advanced} section # enable the `Enable Tag Caching` system setting # save changes # open the Front-End * confirm, that: * `site_serial:1738250904:1:parser_35334543` like keys (all numbers may vary) are present * they have an expiration of 25 days (with a few seconds margin) relative to the time they're set (page, that was setting them on the Front-End was accessed) ## Testing template fragment caching in Memcache can configure expiration NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * populate cache: # change `<inp2:m_Cache key="prefix:lang;skip_var:t,page,per_page,sort_by">` line in the `themes/advanced/platform/elements/header.elm.tpl` template to `<inp2:m_Cache key="prefix:lang;skip_var:t,page,per_page,sort_by" cache_timeout="3600">` # login to the Admin Console # go to the {nav Configuration > Website > Advanced} section # enable the `Enable Tag Caching` system setting # save changes # open the Front-End * confirm, that: * `site_serial:1738250904:1:parser_35334543` like keys (all numbers may vary) are present * they some of them now have an expiration of 1 hour (with a few seconds margin) relative to the time they're set (page, that was setting them on the Front-End was accessed)

# Memcache caching ## How to calculate infinite expiration timestamp 1. open SSH connection to a web server (or where the Memcache is installed) 2. run this command: ``` lang=bash (sleep 1; echo "stats"; sleep 1; echo "quit";) | telnet localhost 11211 | grep 'time' ``` Example output: ``` STAT uptime 61335 STAT time 1676435743 ``` 3. subtract the number after the `uptime` word from the number after the `time` word (e.g. `1676435743 - 61335 = 1676374408`) and remember this number ## How to determine key expiration 1. open SSH connection to a web server (or where the Memcache is installed) 2. run this command (replace `slab_number_here` with a positive number starting from 1; replace `key_name_here` with a key name you want to get info about): ``` lang=bash (sleep 1; echo "stats cachedump slab_number_here 0"; sleep 1; echo "quit";) | telnet localhost 11211 | grep 'key_name_here' ``` Example output: ``` ITEM key_name_here [value_here b; timestamp_here s] ``` 3. if no data is returned try incrementing the number used in place of the `slab_number_here` parametertext by 1 and running that command again 4. if the number in place of the `timestamp_here` text matches the infinite expiration timestamp, then the key will never expire 5. otherwise the key will expire at the given date/time ## How to determine every key expiration/presense in cache # same steps as above, but ommit the ` | grep 'key_name_here'` part of the command # iterate all slab numbers until no data between `Escape character is '^]'.` and `END` lines is returned ## How to clean the cache 1. if you have CentOS, then run the `systemctl restart memcached.service` command as `root` user on the server # Database caching ## How to determine key expiration # open the database (e.g. via phpMyAdmin) # execute the `SELECT LifeTime FROM SystemCache WHERE VarName = 'key_name_here';` database query # if you'll get `-1` it means, that the key won't automatically expire # if you'll get a timestamp it means, that the key will expire after that time ## How to determine every key expiration/presense in cache 1. same steps as above, but ommit the ` WHERE VarName = 'key_name_here'` part of the database query ## How to clean the cache # open the database (e.g. via phpMyAdmin) # run the `TRUNCATE SystemCache;` database query in the # Actual tests ## Testing clean install # perform a clean install via `/core/install.php` script # confirm, that at the `System Configuration` installation step the `Maximum Cache Duration (in days)` setting has initial value of `30` # change value to `25` and proceed with install # confirm, that after installation was done the `MaxCacheDuration` setting in the `/system/config.php` has value of `25` ## Testing an upgrade # remove the `$_CONFIG['Misc']['MaxCacheDuration'] = ...;` line in the `/system/config.php` file # open `/core/install.php` script of existing In-Portal installation # on the `Installation Maintenance` screen: * type `root` user login/password * select the `Upgrade In-Portal` radio button * press `Continue` # perform the upgrade # confirm, that after installation was done the `MaxCacheDuration` setting in the `/system/config.php` has value of `30` ## Testing "setCache" NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * set without expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_def_exp'); $application->setCache('key_with_def_exp', 'v1'); ``` * confirm (see instructions above), that "key_with_def_exp" key has expiration of 25 days (from the the time key was set via "setCache" method call) * set with expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_exp'); $application->setCache('key_with_exp', 'v2', 3600); ``` * confirm (see instructions above), that "key_with_exp" key has expiration of 1 hour (from the the time key was set via "setCache" method call) ## Testing "addCache" NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * add without expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_def_exp'); $application->addCache('key_with_def_exp', 'v1'); ``` * confirm (see instructions above), that "key_with_def_exp" key has expiration of 25 days (from the the time key was set via "addCache" method call) * add with expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteCache('key_with_exp'); $application->addCache('key_with_exp', 'v2', 3600); ``` * confirm (see instructions above), that "key_with_exp" key has expiration of 1 hour (from the the time key was set via "addCache" method call) * add won't overwrite: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->addCache('key_with_exp', 'v3', 86400); echo $application->getCache('key_with_exp'); ``` * confirm, that both key value (that is shown on screen) and expiration (see instructions above) matches `$application->addCache('key_with_exp', 'v2', 3600);` command executed above this test ## Testing "setDBCache" * setup: * clean the database cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * set without expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteDBCache('db_key_with_def_exp'); $application->setDBCache('db_key_with_def_exp', 'v1'); ``` * confirm (see instructions above), that "db_key_with_def_exp" key has expiration of 25 days (from the the time key was set via "setDBCache" method call) * set with expiration: * replace code fragment between `$application->Init();` and `$application->Done();` in the `/index.php` file with this code: ``` lang=php $application->deleteDBCache('db_key_with_exp'); $application->setDBCache('db_key_with_exp', 'v2', 3600); ``` * confirm (see instructions above), that "db_key_with_exp" key has expiration of 1 hour (from the the time key was set via "setDBCache" method call) ## Testing internal caches expiration for Memcache NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * populate cache: * login to In-Portal admin console * open any category record for editing (to populate `master:StructureTree` key) * make some changes * save changed record to the database (to set category serial key) * visit the Front-End in another web browser tab (to populate `master:template_mapping`, `master:cms_menu` and `master:domains_parsed` keys) * confirm, that: * these keys have infinite expiration (the `1738250904` number might differ on your install): * `test` * `site_serial:1738250904` * `site_serial:1738250904:1:master:configs_parsed` * `site_serial:1738250904:1:master:last_cache_rebuild` * `site_serial:1738250904:1:master:StructureTree` * `site_serial:1738250904:1:master:template_mapping` * `site_serial:1738250904:1:master:cms_menu` * `site_serial:1738250904:1:master:sections_parsed` * `site_serial:1738250904:1:master:domains_parsed` * `site_serial:1738250904:1:master:config_files` * all other keys have an expiration of 25 days (with a few seconds margin) relative to the time they're set ## Testing internal caches expiration for DB cache * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * populate cache: * login to In-Portal admin console * open any category record for editing (to populate `StructureTree` key) * make some changes * save changed record to the database (to set category serial key) * visit the Front-End in another web browser tab (to populate `template_mapping`, `cms_menu` and `domains_parsed` keys) * confirm, that: * these keys have infinite expiration: * `configs_parsed` * `last_cache_rebuild` * `StructureTree` * `template_mapping` * `cms_menu` * `sections_parsed` * `domains_parsed` * `config_files` * all other keys have an expiration of 25 days (with a few seconds margin) relative to the time they're set ## Testing template fragment caching in Memcache has expiration cap NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * populate cache: # login to the Admin Console # go to the {nav Configuration > Website > Advanced} section # enable the `Enable Tag Caching` system setting # save changes # open the Front-End * confirm, that: * `site_serial:1738250904:1:parser_35334543` like keys (all numbers may vary) are present * they have an expiration of 25 days (with a few seconds margin) relative to the time they're set (page, that was setting them on the Front-End was accessed) ## Testing template fragment caching in Memcache can configure expiration NOTE: Repeat with `CacheHandler` set to `Memcached` as well. * setup: * clean the memory cache (see instructions above) * change the value of the `MaxCacheDuration` setting in the `/system/config.php` file to the `25` * change the value of the `CacheHandler` setting in the `/system/config.php` file to the `Memcache` * populate cache: # change `<inp2:m_Cache key="prefix:lang;skip_var:t,page,per_page,sort_by">` line in the `themes/advanced/platform/elements/header.elm.tpl` template to `<inp2:m_Cache key="prefix:lang;skip_var:t,page,per_page,sort_by" cache_timeout="3600">` # login to the Admin Console # go to the {nav Configuration > Website > Advanced} section # enable the `Enable Tag Caching` system setting # save changes # open the Front-End * confirm, that: * `site_serial:1738250904:1:parser_35334543` like keys (all numbers may vary) are present * they some of them now have an expiration of 1 hour (with a few seconds margin) relative to the time they're set (page, that was setting them on the Front-End was accessed)