本文整理汇总了Java中org.apache.cassandra.metrics.CacheMetrics类的典型用法代码示例。如果您正苦于以下问题：Java CacheMetrics类的具体用法？Java CacheMetrics怎么用？Java CacheMetrics使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
CacheMetrics类属于org.apache.cassandra.metrics包，在下文中一共展示了CacheMetrics类的7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: testKeyCacheNonClustered
import org.apache.cassandra.metrics.CacheMetrics; //导入依赖的package包/类
@Test
public void testKeyCacheNonClustered() throws Throwable
{
String table = createTable("CREATE TABLE %s ("
+ commonColumnsDef
+ "PRIMARY KEY ((part_key_a, part_key_b)))");
insertData(table, null, false);
clearCache();
for (int i = 0; i < 10; i++)
{
assertRows(execute("SELECT col_text FROM %s WHERE part_key_a = ? AND part_key_b = ?", i, Integer.toOctalString(i)),
new Object[]{ String.valueOf(i) + '-' + String.valueOf(0) });
}
CacheMetrics metrics = CacheService.instance.keyCache.getMetrics();
long hits = metrics.hits.getCount();
long requests = metrics.requests.getCount();
assertEquals(0, hits);
assertEquals(10, requests);
for (int i = 0; i < 100; i++)
{
assertRows(execute("SELECT col_text FROM %s WHERE part_key_a = ? AND part_key_b = ?", i, Integer.toOctalString(i)),
new Object[]{ String.valueOf(i) + '-' + String.valueOf(0) });
}
hits = metrics.hits.getCount();
requests = metrics.requests.getCount();
assertEquals(10, hits);
assertEquals(120, requests);
}
示例2: clearCache
import org.apache.cassandra.metrics.CacheMetrics; //导入依赖的package包/类
private static void clearCache()
{
CassandraMetricsRegistry.Metrics.getNames().forEach(CassandraMetricsRegistry.Metrics::remove);
CacheService.instance.keyCache.clear();
CacheMetrics metrics = CacheService.instance.keyCache.getMetrics();
Assert.assertEquals(0, metrics.entries.getValue().intValue());
Assert.assertEquals(0L, metrics.hits.getCount());
Assert.assertEquals(0L, metrics.requests.getCount());
Assert.assertEquals(0L, metrics.size.getValue().longValue());
}
示例3: CacheService
import org.apache.cassandra.metrics.CacheMetrics; //导入依赖的package包/类
public CacheService(APIClient client) {
super(MBEAN_NAME, client, new CacheMetrics("KeyCache", "key"), new CacheMetrics("RowCache", "row"),
new CacheMetrics("CounterCache", "counter"));
}
示例4: InstrumentingCache
import org.apache.cassandra.metrics.CacheMetrics; //导入依赖的package包/类
public InstrumentingCache(String type, ICache<K, V> map)
{
this.map = map;
this.type = type;
this.metrics = new CacheMetrics(type, map);
}
示例5: clear
import org.apache.cassandra.metrics.CacheMetrics; //导入依赖的package包/类
public void clear()
{
map.clear();
metrics = new CacheMetrics(type, map);
}
示例6: getMetrics
import org.apache.cassandra.metrics.CacheMetrics; //导入依赖的package包/类
public CacheMetrics getMetrics()
{
return metrics;
}
示例7: testKeyCacheClustered
import org.apache.cassandra.metrics.CacheMetrics; //导入依赖的package包/类
@Test
public void testKeyCacheClustered() throws Throwable
{
String table = createTable("CREATE TABLE %s ("
+ commonColumnsDef
+ "PRIMARY KEY ((part_key_a, part_key_b),clust_key_a,clust_key_b,clust_key_c))");
insertData(table, null, true);
clearCache();
// query on partition key
// 10 queries, each 50 result rows
for (int i = 0; i < 10; i++)
{
assertEquals(50, execute("SELECT col_text FROM %s WHERE part_key_a = ? AND part_key_b = ?", i, Integer.toOctalString(i)).size());
}
CacheMetrics metrics = CacheService.instance.keyCache.getMetrics();
long hits = metrics.hits.getCount();
long requests = metrics.requests.getCount();
assertEquals(0, hits);
assertEquals(10, requests);
// 10 queries, each 50 result rows
for (int i = 0; i < 10; i++)
{
assertEquals(50, execute("SELECT col_text FROM %s WHERE part_key_a = ? AND part_key_b = ?", i, Integer.toOctalString(i)).size());
}
metrics = CacheService.instance.keyCache.getMetrics();
hits = metrics.hits.getCount();
requests = metrics.requests.getCount();
assertEquals(10, hits);
assertEquals(10 + 10, requests);
// 100 queries - must get a hit in key-cache
for (int i = 0; i < 10; i++)
{
for (int c = 0; c < 10; c++)
{
assertRows(execute("SELECT col_text, col_long FROM %s WHERE part_key_a = ? AND part_key_b = ? and clust_key_a = ?", i, Integer.toOctalString(i), c),
new Object[]{ String.valueOf(i) + '-' + String.valueOf(c), (long) c });
}
}
metrics = CacheService.instance.keyCache.getMetrics();
hits = metrics.hits.getCount();
requests = metrics.requests.getCount();
assertEquals(10 + 100, hits);
assertEquals(20 + 100, requests);
// 5000 queries - first 10 partitions already in key cache
for (int i = 0; i < 100; i++)
{
for (int c = 0; c < 50; c++)
{
assertRows(execute("SELECT col_text, col_long FROM %s WHERE part_key_a = ? AND part_key_b = ? and clust_key_a = ?", i, Integer.toOctalString(i), c),
new Object[]{ String.valueOf(i) + '-' + String.valueOf(c), (long) c });
}
}
hits = metrics.hits.getCount();
requests = metrics.requests.getCount();
assertEquals(110 + 4910, hits);
assertEquals(120 + 5500, requests);
}