Java Code Examples for org.apache.cassandra.config.DatabaseDescriptor#getCounterCacheSizeInMB()

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Example 1
Source File: CacheService.java    From stratio-cassandra with Apache License 2.0 6 votes vote down vote up 
private AutoSavingCache<CounterCacheKey, ClockAndCount> initCounterCache()
{
    logger.info("Initializing counter cache with capacity of {} MBs", DatabaseDescriptor.getCounterCacheSizeInMB());

    long capacity = DatabaseDescriptor.getCounterCacheSizeInMB() * 1024 * 1024;

    AutoSavingCache<CounterCacheKey, ClockAndCount> cache =
        new AutoSavingCache<>(ConcurrentLinkedHashCache.<CounterCacheKey, ClockAndCount>create(capacity),
                              CacheType.COUNTER_CACHE,
                              new CounterCacheSerializer());

    int keysToSave = DatabaseDescriptor.getCounterCacheKeysToSave();

    logger.info("Scheduling counter cache save to every {} seconds (going to save {} keys).",
                DatabaseDescriptor.getCounterCacheSavePeriod(),
                keysToSave == Integer.MAX_VALUE ? "all" : keysToSave);

    cache.scheduleSaving(DatabaseDescriptor.getCounterCacheSavePeriod(), keysToSave);

    return cache;
}