Memcache php cli vs apache using different caches?

Question

I tried to find this answer everywhere, but hit the wall.

Code: (saved as recent.php)

$MEMCACHE_SERVERS = array( "1.2.3.4", //db prodmaster "5.6.7.8", //db prodslave1 "9.10.11.12" //db1 dev ); $memcache = new Memcache(); foreach($MEMCACHE_SERVERS as $server){ $memcache->addServer($server,11211); } $key = "rec_obj_".$cat_id; $memcache->delete($key); $memcache->set($key, $objects, MEMCACHE_COMPRESSED, $time=60*60*4); 

Given the code above, why does it access various caches when working from cli vs. apache? When I run php / var / www / localhost / htdocs / url / recent.php from the command line, it works fine, but I cannot extract data from my site via $ memcache-> get ($ key). Secondly, when I run the same script from the http://www.url.com/recent.php web browser, it works fine, but cannot be found from the command line? The command line results of the command line can be found on the command line $ memcache-> get ($ key), the results of the web browser can be found via $ memcache-> get ($ key) from the web browser. CLI and web caches seem separate, how can I fix this?

I checked my phpinfo (), and php-apache2 and php-cli have extension = memcache.so. Also, I thought it might be a hash difference, but both say:

 Directive Local Value Master Value memcache.allow_failover 1 1 memcache.chunk_size 8192 8192 memcache.default_port 11211 11211 memcache.default_timeout_ms 1000 1000 memcache.hash_function crc32 crc32 memcache.hash_strategy consistent consistent memcache.max_failover_attempts 100 100 

They also tried to deduce the status and check $ memcache-> getExtendedStats (); both from the command line and from a web browser. Both show all 3 servers. Some of the values ​​are different, although, for example, curr_items or fixed, but disabled by 10 or so.

I feel that I am missing something. I could do a crawl and just save the data in a MySQL table, but this will not answer the question why this is happening.

I tried to provide all the information that seems necessary to me, but feel free to ask for clarification.

Answer 1

When you run the CLI PHP, you run it as your user. When you access it through Apache, it starts as an apache user (www-data or similar). memcached really cares about your username, it will create different caches for different users. So you have two completely different caches.

You can list these caches using sudo ipcs on Linux, see under Shared Memory Segments . Check the "owner" column, you'll probably see both. I personally resolve this by running my PHP CLI as the www-data user:

 sudo su www-data -c "php lawl.php"