org.apache.cassandra.db.compaction.CompactionManagerMBean Maven / Gradle / Ivy
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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.
*/
package org.apache.cassandra.db.compaction;
import java.util.List;
import java.util.Map;
import javax.management.openmbean.TabularData;
public interface CompactionManagerMBean
{
/** List of running compaction objects. */
public List> getCompactions();
/** List of running compaction summary strings. */
public List getCompactionSummary();
/** compaction history **/
public TabularData getCompactionHistory();
/**
* Triggers the compaction of user specified sstables.
* You can specify files from various keyspaces and columnfamilies.
* If you do so, user defined compaction is performed several times to the groups of files
* in the same keyspace/columnfamily.
*
* @param dataFiles a comma separated list of sstable file to compact.
* must contain keyspace and columnfamily name in path(for 2.1+) or file name itself.
*/
public void forceUserDefinedCompaction(String dataFiles);
/**
* Stop all running compaction-like tasks having the provided {@code type}.
* @param type the type of compaction to stop. Can be one of:
* - COMPACTION
* - VALIDATION
* - CLEANUP
* - SCRUB
* - INDEX_BUILD
*/
public void stopCompaction(String type);
/**
* Stop an individual running compaction using the compactionId.
* @param compactionId Compaction ID of compaction to stop. Such IDs can be found in
* the compactions_in_progress table of the system keyspace.
*/
public void stopCompactionById(String compactionId);
/**
* Returns core size of compaction thread pool
*/
public int getCoreCompactorThreads();
/**
* Allows user to resize maximum size of the compaction thread pool.
* @param number New maximum of compaction threads
*/
public void setCoreCompactorThreads(int number);
/**
* Returns maximum size of compaction thread pool
*/
public int getMaximumCompactorThreads();
/**
* Allows user to resize maximum size of the compaction thread pool.
* @param number New maximum of compaction threads
*/
public void setMaximumCompactorThreads(int number);
/**
* Returns core size of validation thread pool
*/
public int getCoreValidationThreads();
/**
* Allows user to resize maximum size of the compaction thread pool.
* @param number New maximum of compaction threads
*/
public void setCoreValidationThreads(int number);
/**
* Returns size of validator thread pool
*/
public int getMaximumValidatorThreads();
/**
* Allows user to resize maximum size of the validator thread pool.
* @param number New maximum of validator threads
*/
public void setMaximumValidatorThreads(int number);
}