Non-expiring cache keys

[DeathKR]

Can't set a non-expiring keys in Redis. Lifetime =-1 does not help.

Expected and Actual Behavior

Phalcon always send to redis EXPIRE command:
1476660660.879090 [0 127.0.0.1:58788] "EXPIRE" "_PHCRmykey" "-1"

$frontCache = new FrontData(['lifetime' => -1]);

$cache = new Redis($frontCache, [
            'host' => 'localhost',
            'port' => 6379,
            'persistent' => true,
            'index' => 0
        ]);

$cache->save("mykey", 1000);

Always set expire to 1 second:

$frontCache = new FrontData();

Also this does not help

$cache->save("mykey", 1000, -1);

Details

• Phalcon version: 3.0.1
• PHP Version: PHP 7.0.11-1~dotdeb+8.1 (cli) ( NTS )
• Operating System: Debian
• Installation type: Compiling from source
• Zephir version (if any): Version 0.9.4a-dev-7e304ba18c
• Server: Nginx

[Jurigag]

Because it should be more likely 0.

[DeathKR]

With '0' keys expire at once. I can set 10 years, but it's not solution. I dont't want to Redis was constantly checking the keys that should be always. This is unnecessary CPU operation.

[Jurigag]

I checked and saving in memcache with lifetime 0 works fine.

[DeathKR]

Sorry, may be for memcached need always store ttl.

[sergeyklay]

Fixed in the 3.0.x branch.