src/java/org/apache/cassandra/db/commitlog/CommitLogMBean.java

/*
* 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.commitlog;


import java.io.IOException;
import java.util.List;

public interface CommitLogMBean
{
    /**
     * Get the number of completed tasks
     */
    public long getCompletedTasks();

    /**
     * Get the number of tasks waiting to be executed
     */
    public long getPendingTasks();

    /**
     * Get the current size used by all the commitlog segments.
     */
    public long getTotalCommitlogSize();

    /**
     * Recover a single file.
     */
    public void recover(String path) throws IOException;

    /**
     * @return file names (not full paths) of active commit log segments (segments containing unflushed data)
     */
    public List<String> getActiveSegmentNames();
    
    /**
     * @return Files which are pending for archival attempt.  Does NOT include failed archive attempts.
     */
    public List<String> getArchivingSegmentNames();
}