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HBASE-24408 Introduce a general 'local region' to store data on master (
#1753) Signed-off-by: stack <stack@apache.org>
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92
...erver/src/main/java/org/apache/hadoop/hbase/master/cleaner/BaseTimeToLiveFileCleaner.java
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|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| /** | ||
| * 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.hadoop.hbase.master.cleaner; | ||
|
|
||
| import java.time.Instant; | ||
| import java.time.ZoneOffset; | ||
| import java.time.format.DateTimeFormatter; | ||
| import org.apache.hadoop.conf.Configuration; | ||
| import org.apache.hadoop.fs.FileStatus; | ||
| import org.apache.hadoop.fs.Path; | ||
| import org.apache.hadoop.hbase.util.EnvironmentEdgeManager; | ||
| import org.apache.yetus.audience.InterfaceAudience; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| /** | ||
| * Base class for time to live file cleaner. | ||
| */ | ||
| @InterfaceAudience.Private | ||
| public abstract class BaseTimeToLiveFileCleaner extends BaseLogCleanerDelegate { | ||
|
|
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| private static final Logger LOG = | ||
| LoggerFactory.getLogger(BaseTimeToLiveFileCleaner.class.getName()); | ||
|
|
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| private static final DateTimeFormatter FORMATTER = | ||
| DateTimeFormatter.ISO_DATE_TIME.withZone(ZoneOffset.systemDefault()); | ||
|
|
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| // Configured time a log can be kept after it was closed | ||
| private long ttlMs; | ||
|
|
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| private volatile boolean stopped = false; | ||
|
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| @Override | ||
| public final void setConf(Configuration conf) { | ||
| super.setConf(conf); | ||
| this.ttlMs = getTtlMs(conf); | ||
| } | ||
|
|
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| @Override | ||
| public boolean isFileDeletable(FileStatus status) { | ||
| // Files are validated for the second time here, | ||
| // if it causes a bottleneck this logic needs refactored | ||
| if (!valiateFilename(status.getPath())) { | ||
| return true; | ||
| } | ||
| long currentTime = EnvironmentEdgeManager.currentTime(); | ||
| long time = status.getModificationTime(); | ||
| long life = currentTime - time; | ||
|
|
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| if (LOG.isTraceEnabled()) { | ||
| LOG.trace("File life:{}ms, ttl:{}ms, current:{}, from{}", life, ttlMs, | ||
| FORMATTER.format(Instant.ofEpochMilli(currentTime)), | ||
| FORMATTER.format(Instant.ofEpochMilli(time))); | ||
| } | ||
| if (life < 0) { | ||
| LOG.warn("Found a file ({}) newer than current time ({} < {}), probably a clock skew", | ||
| status.getPath(), FORMATTER.format(Instant.ofEpochMilli(currentTime)), | ||
| FORMATTER.format(Instant.ofEpochMilli(time))); | ||
| return false; | ||
| } | ||
| return life > ttlMs; | ||
| } | ||
|
|
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| @Override | ||
| public void stop(String why) { | ||
| this.stopped = true; | ||
| } | ||
|
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| @Override | ||
| public boolean isStopped() { | ||
| return this.stopped; | ||
| } | ||
|
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| protected abstract long getTtlMs(Configuration conf); | ||
|
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| protected abstract boolean valiateFilename(Path file); | ||
| } |
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