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[ADDED] Static cache with no auto-expiration

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This commit is contained in:
Sebastian Grewe 2014-01-21 10:16:17 +01:00
parent 3cb546cea5
commit 8ef419f795
2 changed files with 31 additions and 4 deletions
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8
public/include/classes/statistics.class.php
View File

@ -487,7 +487,7 @@ class Statistics extends Base {
while ($row = $result->fetch_assoc()) {
$aData['data'][$row['id']] = $row;
}
return $this->memcache->setCache(STATISTICS_ALL_USER_HASHRATES, $aData);
return $this->memcache->setStaticCache(STATISTICS_ALL_USER_HASHRATES, $aData, 600);
} else {
return $this->sqlError();
}
@ -501,7 +501,7 @@ class Statistics extends Base {
public function getUserHashrate($account_id, $interval=180) {
$this->debug->append("STA " . __METHOD__, 4);
// Dual-caching, try statistics cron first, then fallback to local, then fallbock to SQL
if ($data = $this->memcache->get(STATISTICS_ALL_USER_HASHRATES)) {
if ($data = $this->memcache->getStatic(STATISTICS_ALL_USER_HASHRATES)) {
if (array_key_exists($account_id, $data['data']))
return $data['data'][$account_id]['hashrate'];
// We have no cached value, we return defaults
@ -563,7 +563,7 @@ class Statistics extends Base {
public function getUserShareDifficulty($account_id, $interval=180) {
$this->debug->append("STA " . __METHOD__, 4);
// Dual-caching, try statistics cron first, then fallback to local, then fallbock to SQL
if ($data = $this->memcache->get(STATISTICS_ALL_USER_HASHRATES)) {
if ($data = $this->memcache->getStatic(STATISTICS_ALL_USER_HASHRATES)) {
if (array_key_exists($account_id, $data['data']))
return $data['data'][$account_id]['avgsharediff'];
// We have no cached value, we return defaults
@ -592,7 +592,7 @@ class Statistics extends Base {
public function getUserSharerate($account_id, $interval=180) {
$this->debug->append("STA " . __METHOD__, 4);
// Dual-caching, try statistics cron first, then fallback to local, then fallbock to SQL
if ($data = $this->memcache->get(STATISTICS_ALL_USER_HASHRATES)) {
if ($data = $this->memcache->getStatic(STATISTICS_ALL_USER_HASHRATES)) {
if (array_key_exists($account_id, $data['data']))
return $data['data'][$account_id]['sharerate'];
// We have no cached value, we return defaults

27
public/include/classes/statscache.class.php
View File

@ -44,6 +44,18 @@ class StatsCache {
return $this->cache->set($this->getRound() . '_' . $this->config['memcache']['keyprefix'] . $key, $value, $expiration);
}
/**
* Special memcache->set call bypassing any auto-expiration systems
* Can be used as a static, auto-updated cache via crons
**/
public function setStaticCache($key, $value, $expiration=NULL) {
if (! $this->config['memcache']['enabled']) return false;
if (empty($expiration))
$expiration = $this->config['memcache']['expiration'] + rand( -$this->config['memcache']['splay'], $this->config['memcache']['splay']);
$this->debug->append("Storing " . $this->config['memcache']['keyprefix'] . "$key with expiration $expiration", 3);
return $this->cache->set($this->config['memcache']['keyprefix'] . $key, $value, $expiration);
}
/**
* Wrapper around memcache->get
* Always return false if memcache is disabled
@ -58,6 +70,21 @@ class StatsCache {
$this->debug->append("Key not found", 3);
}
}
/**
* As the static set call, we try to fetch static data here
**/
public function getStatic($key, $cache_cb = NULL, &$cas_token = NULL) {
if (! $this->config['memcache']['enabled']) return false;
$this->debug->append("Trying to fetch key " . $this->config['memcache']['keyprefix'] . "$key from cache", 3);
if ($data = $this->cache->get($this->config['memcache']['keyprefix'].$key)) {
$this->debug->append("Found key in cache", 3);
return $data;
} else {
$this->debug->append("Key not found", 3);
}
}
/**
* Another wrapper, we want to store data in memcache and return the actual data
* for further processing