78bb2ef25a
With the change in the meter implementation, retrieving a non existing metrics would take time. For this, the CacheService would mark caches that are not supported with null url, so the metrics will be register but will return 0 for all request (instead of going to the API that will return 0). Signed-off-by: Amnon Heiman <amnon@scylladb.com>
334 lines
11 KiB
Java
334 lines
11 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright 2015 Cloudius Systems
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*
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* Modified by Cloudius Systems
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*/
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package org.apache.cassandra.service;
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import java.lang.management.ManagementFactory;
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import java.util.concurrent.ExecutionException;
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import javax.management.MBeanServer;
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import javax.management.ObjectName;
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import javax.ws.rs.core.MultivaluedHashMap;
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import javax.ws.rs.core.MultivaluedMap;
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import org.apache.cassandra.metrics.CacheMetrics;
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import com.scylladb.jmx.api.APIClient;
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public class CacheService implements CacheServiceMBean {
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private static final java.util.logging.Logger logger = java.util.logging.Logger
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.getLogger(CacheService.class.getName());
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private APIClient c = new APIClient();
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public void log(String str) {
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logger.finest(str);
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}
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public static final String MBEAN_NAME = "org.apache.cassandra.db:type=Caches";
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public final CacheMetrics keyCache;
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public final CacheMetrics rowCache;
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public final CacheMetrics counterCache;
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public final static CacheService instance = new CacheService();
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public static CacheService getInstance() {
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return instance;
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}
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private CacheService() {
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MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
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try {
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mbs.registerMBean(this, new ObjectName(MBEAN_NAME));
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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keyCache = new CacheMetrics("KeyCache", null);
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rowCache = new CacheMetrics("RowCache", "row");
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counterCache = new CacheMetrics("CounterCache", null);
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}
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public int getRowCacheSavePeriodInSeconds() {
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log(" getRowCacheSavePeriodInSeconds()");
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return c.getIntValue("cache_service/row_cache_save_period");
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}
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public void setRowCacheSavePeriodInSeconds(int rcspis) {
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log(" setRowCacheSavePeriodInSeconds(int rcspis)");
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MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
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queryParams.add("period", Integer.toString(rcspis));
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c.post("cache_service/row_cache_save_period", queryParams);
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}
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public int getKeyCacheSavePeriodInSeconds() {
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log(" getKeyCacheSavePeriodInSeconds()");
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return c.getIntValue("cache_service/key_cache_save_period");
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}
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public void setKeyCacheSavePeriodInSeconds(int kcspis) {
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log(" setKeyCacheSavePeriodInSeconds(int kcspis)");
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MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
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queryParams.add("period", Integer.toString(kcspis));
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c.post("cache_service/key_cache_save_period", queryParams);
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}
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public int getCounterCacheSavePeriodInSeconds() {
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log(" getCounterCacheSavePeriodInSeconds()");
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return c.getIntValue("cache_service/counter_cache_save_period");
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}
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public void setCounterCacheSavePeriodInSeconds(int ccspis) {
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log(" setCounterCacheSavePeriodInSeconds(int ccspis)");
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MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
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queryParams.add("ccspis", Integer.toString(ccspis));
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c.post("cache_service/counter_cache_save_period", queryParams);
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}
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public int getRowCacheKeysToSave() {
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log(" getRowCacheKeysToSave()");
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return c.getIntValue("cache_service/row_cache_keys_to_save");
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}
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public void setRowCacheKeysToSave(int rckts) {
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log(" setRowCacheKeysToSave(int rckts)");
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MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
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queryParams.add("rckts", Integer.toString(rckts));
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c.post("cache_service/row_cache_keys_to_save", queryParams);
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}
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public int getKeyCacheKeysToSave() {
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log(" getKeyCacheKeysToSave()");
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return c.getIntValue("cache_service/key_cache_keys_to_save");
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}
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public void setKeyCacheKeysToSave(int kckts) {
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log(" setKeyCacheKeysToSave(int kckts)");
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MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
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queryParams.add("kckts", Integer.toString(kckts));
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c.post("cache_service/key_cache_keys_to_save", queryParams);
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}
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public int getCounterCacheKeysToSave() {
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log(" getCounterCacheKeysToSave()");
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return c.getIntValue("cache_service/counter_cache_keys_to_save");
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}
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public void setCounterCacheKeysToSave(int cckts) {
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log(" setCounterCacheKeysToSave(int cckts)");
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MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
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queryParams.add("cckts", Integer.toString(cckts));
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c.post("cache_service/counter_cache_keys_to_save", queryParams);
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}
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/**
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* invalidate the key cache; for use after invalidating row cache
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*/
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public void invalidateKeyCache() {
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log(" invalidateKeyCache()");
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c.post("cache_service/invalidate_key_cache");
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}
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/**
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* invalidate the row cache; for use after bulk loading via BinaryMemtable
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*/
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public void invalidateRowCache() {
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log(" invalidateRowCache()");
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c.post("cache_service/invalidate_row_cache");
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}
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public void invalidateCounterCache() {
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log(" invalidateCounterCache()");
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c.post("cache_service/invalidate_counter_cache");
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}
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public void setRowCacheCapacityInMB(long capacity) {
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log(" setRowCacheCapacityInMB(long capacity)");
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MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
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queryParams.add("capacity", Long.toString(capacity));
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c.post("cache_service/row_cache_capacity", queryParams);
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}
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public void setKeyCacheCapacityInMB(long capacity) {
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log(" setKeyCacheCapacityInMB(long capacity)");
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MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
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queryParams.add("capacity", Long.toString(capacity));
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c.post("cache_service/key_cache_capacity", queryParams);
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}
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public void setCounterCacheCapacityInMB(long capacity) {
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log(" setCounterCacheCapacityInMB(long capacity)");
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MultivaluedMap<String, String> queryParams = new MultivaluedHashMap<String, String>();
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queryParams.add("capacity", Long.toString(capacity));
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c.post("cache_service/counter_cache_capacity_in_mb", queryParams);
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}
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/**
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* save row and key caches
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*
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* @throws ExecutionException
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* when attempting to retrieve the result of a task that aborted
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* by throwing an exception
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* @throws InterruptedException
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* when a thread is waiting, sleeping, or otherwise occupied,
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* and the thread is interrupted, either before or during the
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* activity.
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*/
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public void saveCaches() throws ExecutionException, InterruptedException {
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log(" saveCaches() throws ExecutionException, InterruptedException");
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c.post("cache_service/save_caches");
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}
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//
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// remaining methods are provided for backwards compatibility; modern
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// clients should use CacheMetrics instead
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//
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#hits
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*/
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@Deprecated
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public long getKeyCacheHits() {
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log(" getKeyCacheHits()");
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return keyCache.hits.count();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#hits
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*/
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@Deprecated
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public long getRowCacheHits() {
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log(" getRowCacheHits()");
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return rowCache.hits.count();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#requests
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*/
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@Deprecated
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public long getKeyCacheRequests() {
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log(" getKeyCacheRequests()");
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return keyCache.requests.count();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#requests
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*/
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@Deprecated
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public long getRowCacheRequests() {
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log(" getRowCacheRequests()");
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return rowCache.requests.count();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#hitRate
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*/
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@Deprecated
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public double getKeyCacheRecentHitRate() {
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log(" getKeyCacheRecentHitRate()");
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return keyCache.getRecentHitRate();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#hitRate
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*/
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@Deprecated
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public double getRowCacheRecentHitRate() {
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log(" getRowCacheRecentHitRate()");
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return rowCache.getRecentHitRate();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#capacity
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*/
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@Deprecated
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public long getRowCacheCapacityInMB() {
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log(" getRowCacheCapacityInMB()");
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return getRowCacheCapacityInBytes() / 1024 / 1024;
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#capacity
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*/
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@Deprecated
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public long getRowCacheCapacityInBytes() {
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log(" getRowCacheCapacityInBytes()");
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return rowCache.capacity.value();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#capacity
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*/
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@Deprecated
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public long getKeyCacheCapacityInMB() {
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log(" getKeyCacheCapacityInMB()");
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return getKeyCacheCapacityInBytes() / 1024 / 1024;
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#capacity
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*/
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@Deprecated
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public long getKeyCacheCapacityInBytes() {
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log(" getKeyCacheCapacityInBytes()");
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return keyCache.capacity.value();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#size
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*/
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@Deprecated
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public long getRowCacheSize() {
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log(" getRowCacheSize()");
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return rowCache.size.value();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#entries
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*/
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@Deprecated
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public long getRowCacheEntries() {
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log(" getRowCacheEntries()");
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return rowCache.size.value();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#size
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*/
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@Deprecated
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public long getKeyCacheSize() {
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log(" getKeyCacheSize()");
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return keyCache.size.value();
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}
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/**
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* @see org.apache.cassandra.metrics.CacheMetrics#entries
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*/
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@Deprecated
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public long getKeyCacheEntries() {
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log(" getKeyCacheEntries()");
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return keyCache.size.value();
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}
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}
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