Adding the CompactionManagerMBean
This adds the CompactionManagerMBean and its implementation CompactionManager. The implementation is based on the API, that is define in compaction_manager.json Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
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Amnon Heiman
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/*
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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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package org.apache.cassandra.db.compaction;
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import java.lang.management.ManagementFactory;
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import java.util.*;
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import javax.management.MBeanServer;
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import javax.management.ObjectName;
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import javax.management.openmbean.TabularData;
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import javax.ws.rs.core.MultivaluedMap;
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import com.cloudius.urchin.api.APIClient;
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import com.sun.jersey.core.util.MultivaluedMapImpl;
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/**
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* A singleton which manages a private executor of ongoing compactions.
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* <p/>
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* Scheduling for compaction is accomplished by swapping sstables to be
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* compacted into a set via DataTracker. New scheduling attempts will ignore
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* currently compacting sstables.
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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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public class CompactionManager implements CompactionManagerMBean {
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public static final String MBEAN_OBJECT_NAME = "org.apache.cassandra.db:type=CompactionManager";
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private static final java.util.logging.Logger logger = java.util.logging.Logger
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.getLogger(CompactionManager.class.getName());
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public static final CompactionManager instance;
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private APIClient c = new APIClient();
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public void log(String str) {
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logger.info(str);
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}
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static {
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instance = new CompactionManager();
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MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
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try {
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mbs.registerMBean(instance, new ObjectName(MBEAN_OBJECT_NAME));
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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public static CompactionManager getInstance() {
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return instance;
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}
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/** List of running compaction objects. */
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public List<Map<String, String>> getCompactions() {
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log(" getCompactions()");
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return c.getListMapStrValue("compaction_manager/compactions");
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}
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/** List of running compaction summary strings. */
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public List<String> getCompactionSummary() {
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log(" getCompactionSummary()");
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return c.getListStrValue("compaction_manager/compaction_summary");
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}
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/** compaction history **/
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public TabularData getCompactionHistory() {
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log(" getCompactionHistory()");
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return c.getCQLResult("SELECT * from system.compaction_history");
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}
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/**
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* @see org.apache.cassandra.metrics.CompactionMetrics#pendingTasks
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* @return estimated number of compactions remaining to perform
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*/
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@Deprecated
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public int getPendingTasks() {
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log(" getPendingTasks()");
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return c.getIntValue("");
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}
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/**
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* @see org.apache.cassandra.metrics.CompactionMetrics#completedTasks
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* @return number of completed compactions since server [re]start
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*/
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@Deprecated
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public long getCompletedTasks() {
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log(" getCompletedTasks()");
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return c.getLongValue("");
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}
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/**
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* @see org.apache.cassandra.metrics.CompactionMetrics#bytesCompacted
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* @return total number of bytes compacted since server [re]start
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*/
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@Deprecated
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public long getTotalBytesCompacted() {
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log(" getTotalBytesCompacted()");
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return c.getLongValue("");
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}
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/**
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* @see org.apache.cassandra.metrics.CompactionMetrics#totalCompactionsCompleted
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* @return total number of compactions since server [re]start
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*/
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@Deprecated
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public long getTotalCompactionsCompleted() {
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log(" getTotalCompactionsCompleted()");
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return c.getLongValue("");
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}
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/**
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* Triggers the compaction of user specified sstables. You can specify files
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* from various keyspaces and columnfamilies. If you do so, user defined
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* compaction is performed several times to the groups of files in the same
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* keyspace/columnfamily.
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*
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* @param dataFiles
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* a comma separated list of sstable file to compact. must
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* contain keyspace and columnfamily name in path(for 2.1+) or
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* file name itself.
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*/
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public void forceUserDefinedCompaction(String dataFiles) {
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log(" forceUserDefinedCompaction(String dataFiles)");
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MultivaluedMap<String, String> queryParams = new MultivaluedMapImpl();
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queryParams.add("dataFiles", dataFiles);
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c.post("compaction_manager/compaction_manager/force_user_defined_compaction",
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queryParams);
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}
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/**
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* Stop all running compaction-like tasks having the provided {@code type}.
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*
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* @param type
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* the type of compaction to stop. Can be one of: - COMPACTION -
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* VALIDATION - CLEANUP - SCRUB - INDEX_BUILD
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*/
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public void stopCompaction(String type) {
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log(" stopCompaction(String type)");
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MultivaluedMap<String, String> queryParams = new MultivaluedMapImpl();
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queryParams.add("type", type);
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c.post("compaction_manager/compaction_manager/stop_compaction",
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queryParams);
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}
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/**
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* Returns core size of compaction thread pool
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*/
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public int getCoreCompactorThreads() {
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log(" getCoreCompactorThreads()");
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return c.getIntValue("");
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}
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/**
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* Allows user to resize maximum size of the compaction thread pool.
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*
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* @param number
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* New maximum of compaction threads
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*/
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public void setCoreCompactorThreads(int number) {
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log(" setCoreCompactorThreads(int number)");
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}
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/**
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* Returns maximum size of compaction thread pool
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*/
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public int getMaximumCompactorThreads() {
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log(" getMaximumCompactorThreads()");
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return c.getIntValue("");
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}
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/**
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* Allows user to resize maximum size of the compaction thread pool.
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*
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* @param number
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* New maximum of compaction threads
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*/
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public void setMaximumCompactorThreads(int number) {
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log(" setMaximumCompactorThreads(int number)");
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}
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/**
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* Returns core size of validation thread pool
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*/
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public int getCoreValidationThreads() {
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log(" getCoreValidationThreads()");
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return c.getIntValue("");
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}
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/**
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* Allows user to resize maximum size of the compaction thread pool.
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*
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* @param number
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* New maximum of compaction threads
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*/
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public void setCoreValidationThreads(int number) {
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log(" setCoreValidationThreads(int number)");
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}
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/**
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* Returns size of validator thread pool
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*/
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public int getMaximumValidatorThreads() {
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log(" getMaximumValidatorThreads()");
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return c.getIntValue("");
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}
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/**
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* Allows user to resize maximum size of the validator thread pool.
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*
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* @param number
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* New maximum of validator threads
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*/
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public void setMaximumValidatorThreads(int number) {
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log(" setMaximumValidatorThreads(int number)");
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}
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}
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@ -0,0 +1,135 @@
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/*
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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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package org.apache.cassandra.db.compaction;
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import java.util.List;
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import java.util.Map;
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import javax.management.openmbean.TabularData;
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public interface CompactionManagerMBean {
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/** List of running compaction objects. */
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public List<Map<String, String>> getCompactions();
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/** List of running compaction summary strings. */
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public List<String> getCompactionSummary();
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/** compaction history **/
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public TabularData getCompactionHistory();
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/**
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* @see org.apache.cassandra.metrics.CompactionMetrics#pendingTasks
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* @return estimated number of compactions remaining to perform
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*/
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@Deprecated
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public int getPendingTasks();
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/**
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* @see org.apache.cassandra.metrics.CompactionMetrics#completedTasks
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* @return number of completed compactions since server [re]start
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*/
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@Deprecated
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public long getCompletedTasks();
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/**
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* @see org.apache.cassandra.metrics.CompactionMetrics#bytesCompacted
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* @return total number of bytes compacted since server [re]start
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*/
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@Deprecated
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public long getTotalBytesCompacted();
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/**
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* @see org.apache.cassandra.metrics.CompactionMetrics#totalCompactionsCompleted
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* @return total number of compactions since server [re]start
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*/
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@Deprecated
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public long getTotalCompactionsCompleted();
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/**
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* Triggers the compaction of user specified sstables. You can specify files
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* from various keyspaces and columnfamilies. If you do so, user defined
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* compaction is performed several times to the groups of files in the same
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* keyspace/columnfamily.
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*
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* @param dataFiles
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* a comma separated list of sstable file to compact. must
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* contain keyspace and columnfamily name in path(for 2.1+) or
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* file name itself.
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*/
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public void forceUserDefinedCompaction(String dataFiles);
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/**
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* Stop all running compaction-like tasks having the provided {@code type}.
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*
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* @param type
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* the type of compaction to stop. Can be one of: - COMPACTION -
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* VALIDATION - CLEANUP - SCRUB - INDEX_BUILD
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*/
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public void stopCompaction(String type);
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/**
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* Returns core size of compaction thread pool
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*/
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public int getCoreCompactorThreads();
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/**
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* Allows user to resize maximum size of the compaction thread pool.
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*
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* @param number
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* New maximum of compaction threads
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*/
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public void setCoreCompactorThreads(int number);
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/**
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* Returns maximum size of compaction thread pool
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*/
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public int getMaximumCompactorThreads();
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/**
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* Allows user to resize maximum size of the compaction thread pool.
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*
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* @param number
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* New maximum of compaction threads
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*/
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public void setMaximumCompactorThreads(int number);
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/**
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* Returns core size of validation thread pool
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*/
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public int getCoreValidationThreads();
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/**
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* Allows user to resize maximum size of the compaction thread pool.
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*
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* @param number
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* New maximum of compaction threads
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*/
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public void setCoreValidationThreads(int number);
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/**
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* Returns size of validator thread pool
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*/
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public int getMaximumValidatorThreads();
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/**
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* Allows user to resize maximum size of the validator thread pool.
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*
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* @param number
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* New maximum of validator threads
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*/
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public void setMaximumValidatorThreads(int number);
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}
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