本文整理汇总了Java中org.apache.cassandra.config.DatabaseDescriptor.getKeyCacheSizeInMB方法的典型用法代码示例。如果您正苦于以下问题：Java DatabaseDescriptor.getKeyCacheSizeInMB方法的具体用法？Java DatabaseDescriptor.getKeyCacheSizeInMB怎么用？Java DatabaseDescriptor.getKeyCacheSizeInMB使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.cassandra.config.DatabaseDescriptor的用法示例。
在下文中一共展示了DatabaseDescriptor.getKeyCacheSizeInMB方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: initKeyCache
import org.apache.cassandra.config.DatabaseDescriptor; //导入方法依赖的package包/类
/**
* @return auto saving cache object
*/
private AutoSavingCache<KeyCacheKey, RowIndexEntry> initKeyCache()
{
logger.info("Initializing key cache with capacity of {} MBs.", DatabaseDescriptor.getKeyCacheSizeInMB());
long keyCacheInMemoryCapacity = DatabaseDescriptor.getKeyCacheSizeInMB() * 1024 * 1024;
// as values are constant size we can use singleton weigher
// where 48 = 40 bytes (average size of the key) + 8 bytes (size of value)
ICache<KeyCacheKey, RowIndexEntry> kc;
kc = ConcurrentLinkedHashCache.create(keyCacheInMemoryCapacity);
AutoSavingCache<KeyCacheKey, RowIndexEntry> keyCache = new AutoSavingCache<>(kc, CacheType.KEY_CACHE, new KeyCacheSerializer());
int keyCacheKeysToSave = DatabaseDescriptor.getKeyCacheKeysToSave();
keyCache.scheduleSaving(DatabaseDescriptor.getKeyCacheSavePeriod(), keyCacheKeysToSave);
return keyCache;
}
示例2: initKeyCache
import org.apache.cassandra.config.DatabaseDescriptor; //导入方法依赖的package包/类
/**
* @return auto saving cache object
*/
private AutoSavingCache<KeyCacheKey, RowIndexEntry> initKeyCache()
{
logger.info("Initializing key cache with capacity of {} MBs.", DatabaseDescriptor.getKeyCacheSizeInMB());
long keyCacheInMemoryCapacity = DatabaseDescriptor.getKeyCacheSizeInMB() * 1024 * 1024;
// as values are constant size we can use singleton weigher
// where 48 = 40 bytes (average size of the key) + 8 bytes (size of value)
ICache<KeyCacheKey, RowIndexEntry> kc;
kc = ConcurrentLinkedHashCache.create(keyCacheInMemoryCapacity);
AutoSavingCache<KeyCacheKey, RowIndexEntry> keyCache = new AutoSavingCache<KeyCacheKey, RowIndexEntry>(kc, CacheType.KEY_CACHE, new KeyCacheSerializer());
int keyCacheKeysToSave = DatabaseDescriptor.getKeyCacheKeysToSave();
logger.info("Scheduling key cache save to each {} seconds (going to save {} keys).",
DatabaseDescriptor.getKeyCacheSavePeriod(),
keyCacheKeysToSave == Integer.MAX_VALUE ? "all" : keyCacheKeysToSave);
keyCache.scheduleSaving(DatabaseDescriptor.getKeyCacheSavePeriod(), keyCacheKeysToSave);
return keyCache;
}