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* Copyright 2009 The Apache Software Foundation
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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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* http://www.apache.org/licenses/LICENSE-2.0
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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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package org.apache.hadoop.hbase.regionserver.transactional;
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import java.util.concurrent.atomic.AtomicBoolean;
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import org.apache.hadoop.hbase.Chore;
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import org.apache.hadoop.hbase.regionserver.HRegion;
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* Cleans up committed transactions when they are no longer needed to verify
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* pending transactions.
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class CleanOldTransactionsChore extends Chore {
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private static final String SLEEP_CONF = "hbase.transaction.clean.sleep";
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private static final int DEFAULT_SLEEP = 60 * 1000;
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private final TransactionalRegionServer regionServer;
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public CleanOldTransactionsChore(
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final TransactionalRegionServer regionServer,
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final AtomicBoolean stopRequest) {
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super(regionServer.getConfiguration().getInt(SLEEP_CONF, DEFAULT_SLEEP),
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this.regionServer = regionServer;
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protected void chore() {
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for (HRegion region : regionServer.getOnlineRegions()) {
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((TransactionalRegion) region).removeUnNeededCommitedTransactions();