scylla-jmx/src/main/java/org/apache/cassandra/service/CacheService.java

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright 2015 Cloudius Systems
*
* Modified by Cloudius Systems
*/
package org.apache.cassandra.service;
import java.lang.management.ManagementFactory;
import java.util.concurrent.ExecutionException;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.ws.rs.core.MultivaluedHashMap;
import javax.ws.rs.core.MultivaluedMap;
import org.apache.cassandra.metrics.CacheMetrics;
import com.cloudius.urchin.api.APIClient;
public class CacheService implements CacheServiceMBean {
private static final java.util.logging.Logger logger = java.util.logging.Logger
.getLogger(CacheService.class.getName());
private APIClient c = new APIClient();
public void log(String str) {
logger.info(str);
}
public static final String MBEAN_NAME = "org.apache.cassandra.db:type=Caches";
public final CacheMetrics keyCache;
public final CacheMetrics rowCache;
public final CacheMetrics counterCache;
public final static CacheService instance = new CacheService();
public static CacheService getInstance() {
return instance;
}
private CacheService() {
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
try {
mbs.registerMBean(this, new ObjectName(MBEAN_NAME));
} catch (Exception e) {
throw new RuntimeException(e);
}
keyCache = new CacheMetrics("KeyCache", "key");
rowCache = new CacheMetrics("RowCache", "row");
counterCache = new CacheMetrics("CounterCache", "counter");
}
public int getRowCacheSavePeriodInSeconds() {
log(" getRowCacheSavePeriodInSeconds()");
return c.getIntValue("cache_service/row_cache_save_period");
}
public void setRowCacheSavePeriodInSeconds(int rcspis) {
log(" setRowCacheSavePeriodInSeconds(int rcspis)");
MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
queryParams.add("period", Integer.toString(rcspis));
c.post("cache_service/row_cache_save_period", queryParams);
}
public int getKeyCacheSavePeriodInSeconds() {
log(" getKeyCacheSavePeriodInSeconds()");
return c.getIntValue("cache_service/key_cache_save_period");
}
public void setKeyCacheSavePeriodInSeconds(int kcspis) {
log(" setKeyCacheSavePeriodInSeconds(int kcspis)");
MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
queryParams.add("period", Integer.toString(kcspis));
c.post("cache_service/key_cache_save_period", queryParams);
}
public int getCounterCacheSavePeriodInSeconds() {
log(" getCounterCacheSavePeriodInSeconds()");
return c.getIntValue("cache_service/counter_cache_save_period");
}
public void setCounterCacheSavePeriodInSeconds(int ccspis) {
log(" setCounterCacheSavePeriodInSeconds(int ccspis)");
MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
queryParams.add("ccspis", Integer.toString(ccspis));
c.post("cache_service/counter_cache_save_period", queryParams);
}
public int getRowCacheKeysToSave() {
log(" getRowCacheKeysToSave()");
return c.getIntValue("cache_service/row_cache_keys_to_save");
}
public void setRowCacheKeysToSave(int rckts) {
log(" setRowCacheKeysToSave(int rckts)");
MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
queryParams.add("rckts", Integer.toString(rckts));
c.post("cache_service/row_cache_keys_to_save", queryParams);
}
public int getKeyCacheKeysToSave() {
log(" getKeyCacheKeysToSave()");
return c.getIntValue("cache_service/key_cache_keys_to_save");
}
public void setKeyCacheKeysToSave(int kckts) {
log(" setKeyCacheKeysToSave(int kckts)");
MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
queryParams.add("kckts", Integer.toString(kckts));
c.post("cache_service/key_cache_keys_to_save", queryParams);
}
public int getCounterCacheKeysToSave() {
log(" getCounterCacheKeysToSave()");
return c.getIntValue("cache_service/counter_cache_keys_to_save");
}
public void setCounterCacheKeysToSave(int cckts) {
log(" setCounterCacheKeysToSave(int cckts)");
MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
queryParams.add("cckts", Integer.toString(cckts));
c.post("cache_service/counter_cache_keys_to_save", queryParams);
}
/**
* invalidate the key cache; for use after invalidating row cache
*/
public void invalidateKeyCache() {
log(" invalidateKeyCache()");
c.post("cache_service/invalidate_key_cache");
}
/**
* invalidate the row cache; for use after bulk loading via BinaryMemtable
*/
public void invalidateRowCache() {
log(" invalidateRowCache()");
c.post("cache_service/invalidate_row_cache");
}
public void invalidateCounterCache() {
log(" invalidateCounterCache()");
c.post("cache_service/invalidate_counter_cache");
}
public void setRowCacheCapacityInMB(long capacity) {
log(" setRowCacheCapacityInMB(long capacity)");
MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
queryParams.add("capacity", Long.toString(capacity));
c.post("cache_service/row_cache_capacity", queryParams);
}
public void setKeyCacheCapacityInMB(long capacity) {
log(" setKeyCacheCapacityInMB(long capacity)");
MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
queryParams.add("capacity", Long.toString(capacity));
c.post("cache_service/key_cache_capacity", queryParams);
}
public void setCounterCacheCapacityInMB(long capacity) {
log(" setCounterCacheCapacityInMB(long capacity)");
MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
queryParams.add("capacity", Long.toString(capacity));
c.post("cache_service/counter_cache_capacity_in_mb", queryParams);
}
/**
* save row and key caches
*
* @throws ExecutionException
* when attempting to retrieve the result of a task that aborted
* by throwing an exception
* @throws InterruptedException
* when a thread is waiting, sleeping, or otherwise occupied,
* and the thread is interrupted, either before or during the
* activity.
*/
public void saveCaches() throws ExecutionException, InterruptedException {
log(" saveCaches() throws ExecutionException, InterruptedException");
c.post("cache_service/save_caches");
}
//
// remaining methods are provided for backwards compatibility; modern
// clients should use CacheMetrics instead
//
/**
* @see org.apache.cassandra.metrics.CacheMetrics#hits
*/
@Deprecated
public long getKeyCacheHits() {
log(" getKeyCacheHits()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#hits
*/
@Deprecated
public long getRowCacheHits() {
log(" getRowCacheHits()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#requests
*/
@Deprecated
public long getKeyCacheRequests() {
log(" getKeyCacheRequests()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#requests
*/
@Deprecated
public long getRowCacheRequests() {
log(" getRowCacheRequests()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#hitRate
*/
@Deprecated
public double getKeyCacheRecentHitRate() {
log(" getKeyCacheRecentHitRate()");
return c.getDoubleValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#hitRate
*/
@Deprecated
public double getRowCacheRecentHitRate() {
log(" getRowCacheRecentHitRate()");
return c.getDoubleValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#capacity
*/
@Deprecated
public long getRowCacheCapacityInMB() {
log(" getRowCacheCapacityInMB()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#capacity
*/
@Deprecated
public long getRowCacheCapacityInBytes() {
log(" getRowCacheCapacityInBytes()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#capacity
*/
@Deprecated
public long getKeyCacheCapacityInMB() {
log(" getKeyCacheCapacityInMB()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#capacity
*/
@Deprecated
public long getKeyCacheCapacityInBytes() {
log(" getKeyCacheCapacityInBytes()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#size
*/
@Deprecated
public long getRowCacheSize() {
log(" getRowCacheSize()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#entries
*/
@Deprecated
public long getRowCacheEntries() {
log(" getRowCacheEntries()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#size
*/
@Deprecated
public long getKeyCacheSize() {
log(" getKeyCacheSize()");
return c.getLongValue("");
}
/**
* @see org.apache.cassandra.metrics.CacheMetrics#entries
*/
@Deprecated
public long getKeyCacheEntries() {
log(" getKeyCacheEntries()");
return c.getLongValue("");
}
}