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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.hadoop.hbase.regionserver.compactions;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.util.StringUtils;
import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.hbase.regionserver.StoreConfigInformation;
/**
*
* Compaction configuration for a particular instance of HStore.
* Takes into account both global settings and ones set on the column family/store.
* Control knobs for default compaction algorithm:
*
*
* maxCompactSize - upper bound on file size to be included in minor compactions
* minCompactSize - lower bound below which compaction is selected without ratio test
* minFilesToCompact - lower bound on number of files in any minor compaction
* maxFilesToCompact - upper bound on number of files in any minor compaction
* compactionRatio - Ratio used for compaction
* minLocalityToForceCompact - Locality threshold for a store file to major compact (HBASE-11195)
*
* Set parameter as "hbase.hstore.compaction.<attribute>"
*/
@InterfaceAudience.Private
public class CompactionConfiguration {
private static final Logger LOG = LoggerFactory.getLogger(CompactionConfiguration.class);
public static final String HBASE_HSTORE_COMPACTION_RATIO_KEY = "hbase.hstore.compaction.ratio";
public static final String HBASE_HSTORE_COMPACTION_RATIO_OFFPEAK_KEY =
"hbase.hstore.compaction.ratio.offpeak";
public static final String HBASE_HSTORE_COMPACTION_MIN_KEY = "hbase.hstore.compaction.min";
public static final String HBASE_HSTORE_COMPACTION_MIN_SIZE_KEY =
"hbase.hstore.compaction.min.size";
public static final String HBASE_HSTORE_COMPACTION_MAX_KEY = "hbase.hstore.compaction.max";
public static final String HBASE_HSTORE_COMPACTION_MAX_SIZE_KEY =
"hbase.hstore.compaction.max.size";
public static final String HBASE_HSTORE_COMPACTION_MAX_SIZE_OFFPEAK_KEY =
"hbase.hstore.compaction.max.size.offpeak";
public static final String HBASE_HSTORE_OFFPEAK_END_HOUR = "hbase.offpeak.end.hour";
public static final String HBASE_HSTORE_OFFPEAK_START_HOUR = "hbase.offpeak.start.hour";
public static final String HBASE_HSTORE_MIN_LOCALITY_TO_SKIP_MAJOR_COMPACT =
"hbase.hstore.min.locality.to.skip.major.compact";
public static final String HBASE_HFILE_COMPACTION_DISCHARGER_THREAD_COUNT =
"hbase.hfile.compaction.discharger.thread.count";
/*
* The epoch time length for the windows we no longer compact
*/
public static final String DATE_TIERED_MAX_AGE_MILLIS_KEY =
"hbase.hstore.compaction.date.tiered.max.storefile.age.millis";
public static final String DATE_TIERED_INCOMING_WINDOW_MIN_KEY =
"hbase.hstore.compaction.date.tiered.incoming.window.min";
public static final String COMPACTION_POLICY_CLASS_FOR_DATE_TIERED_WINDOWS_KEY =
"hbase.hstore.compaction.date.tiered.window.policy.class";
public static final String DATE_TIERED_SINGLE_OUTPUT_FOR_MINOR_COMPACTION_KEY =
"hbase.hstore.compaction.date.tiered.single.output.for.minor.compaction";
private static final Class
DEFAULT_COMPACTION_POLICY_CLASS_FOR_DATE_TIERED_WINDOWS = ExploringCompactionPolicy.class;
public static final String DATE_TIERED_COMPACTION_WINDOW_FACTORY_CLASS_KEY =
"hbase.hstore.compaction.date.tiered.window.factory.class";
private static final Class
DEFAULT_DATE_TIERED_COMPACTION_WINDOW_FACTORY_CLASS = ExponentialCompactionWindowFactory.class;
Configuration conf;
StoreConfigInformation storeConfigInfo;
private final double offPeakCompactionRatio;
/** Since all these properties can change online, they are volatile **/
private final long maxCompactSize;
private final long offPeakMaxCompactSize;
private final long minCompactSize;
/** This one can be update **/
private int minFilesToCompact;
private final int maxFilesToCompact;
private final double compactionRatio;
private final long throttlePoint;
private final long majorCompactionPeriod;
private final float majorCompactionJitter;
private final float minLocalityToForceCompact;
private final long dateTieredMaxStoreFileAgeMillis;
private final int dateTieredIncomingWindowMin;
private final String compactionPolicyForDateTieredWindow;
private final boolean dateTieredSingleOutputForMinorCompaction;
private final String dateTieredCompactionWindowFactory;
CompactionConfiguration(Configuration conf, StoreConfigInformation storeConfigInfo) {
this.conf = conf;
this.storeConfigInfo = storeConfigInfo;
maxCompactSize = conf.getLong(HBASE_HSTORE_COMPACTION_MAX_SIZE_KEY, Long.MAX_VALUE);
offPeakMaxCompactSize = conf.getLong(HBASE_HSTORE_COMPACTION_MAX_SIZE_OFFPEAK_KEY,
maxCompactSize);
minCompactSize = conf.getLong(HBASE_HSTORE_COMPACTION_MIN_SIZE_KEY,
storeConfigInfo.getMemStoreFlushSize());
minFilesToCompact = Math.max(2, conf.getInt(HBASE_HSTORE_COMPACTION_MIN_KEY,
/*old name*/ conf.getInt("hbase.hstore.compactionThreshold", 3)));
maxFilesToCompact = conf.getInt(HBASE_HSTORE_COMPACTION_MAX_KEY, 10);
compactionRatio = conf.getFloat(HBASE_HSTORE_COMPACTION_RATIO_KEY, 1.2F);
offPeakCompactionRatio = conf.getFloat(HBASE_HSTORE_COMPACTION_RATIO_OFFPEAK_KEY, 5.0F);
throttlePoint = conf.getLong("hbase.regionserver.thread.compaction.throttle",
2 * maxFilesToCompact * storeConfigInfo.getMemStoreFlushSize());
majorCompactionPeriod = conf.getLong(HConstants.MAJOR_COMPACTION_PERIOD,
HConstants.DEFAULT_MAJOR_COMPACTION_PERIOD);
majorCompactionJitter = conf.getFloat(HConstants.MAJOR_COMPACTION_JITTER,
HConstants.DEFAULT_MAJOR_COMPACTION_JITTER);
minLocalityToForceCompact = conf.getFloat(HBASE_HSTORE_MIN_LOCALITY_TO_SKIP_MAJOR_COMPACT, 0f);
dateTieredMaxStoreFileAgeMillis = conf.getLong(DATE_TIERED_MAX_AGE_MILLIS_KEY, Long.MAX_VALUE);
dateTieredIncomingWindowMin = conf.getInt(DATE_TIERED_INCOMING_WINDOW_MIN_KEY, 6);
compactionPolicyForDateTieredWindow = conf.get(
COMPACTION_POLICY_CLASS_FOR_DATE_TIERED_WINDOWS_KEY,
DEFAULT_COMPACTION_POLICY_CLASS_FOR_DATE_TIERED_WINDOWS.getName());
dateTieredSingleOutputForMinorCompaction = conf
.getBoolean(DATE_TIERED_SINGLE_OUTPUT_FOR_MINOR_COMPACTION_KEY, true);
this.dateTieredCompactionWindowFactory = conf.get(
DATE_TIERED_COMPACTION_WINDOW_FACTORY_CLASS_KEY,
DEFAULT_DATE_TIERED_COMPACTION_WINDOW_FACTORY_CLASS.getName());
LOG.info(toString());
}
@Override
public String toString() {
return String.format(
"size [%s, %s, %s); files [%d, %d); ratio %f; off-peak ratio %f; throttle point %d;"
+ " major period %d, major jitter %f, min locality to compact %f;"
+ " tiered compaction: max_age %d, incoming window min %d,"
+ " compaction policy for tiered window %s, single output for minor %b,"
+ " compaction window factory %s",
StringUtils.byteDesc(minCompactSize),
StringUtils.byteDesc(maxCompactSize),
StringUtils.byteDesc(offPeakMaxCompactSize),
minFilesToCompact,
maxFilesToCompact,
compactionRatio,
offPeakCompactionRatio,
throttlePoint,
majorCompactionPeriod,
majorCompactionJitter,
minLocalityToForceCompact,
dateTieredMaxStoreFileAgeMillis,
dateTieredIncomingWindowMin,
compactionPolicyForDateTieredWindow,
dateTieredSingleOutputForMinorCompaction,
dateTieredCompactionWindowFactory
);
}
/**
* @return lower bound below which compaction is selected without ratio test
*/
public long getMinCompactSize() {
return minCompactSize;
}
/**
* @return upper bound on file size to be included in minor compactions
*/
public long getMaxCompactSize() {
return maxCompactSize;
}
/**
* @return upper bound on number of files to be included in minor compactions
*/
public int getMinFilesToCompact() {
return minFilesToCompact;
}
/**
* Set upper bound on number of files to be included in minor compactions
* @param threshold value to set to
*/
public void setMinFilesToCompact(int threshold) {
minFilesToCompact = threshold;
}
/**
* @return upper bound on number of files to be included in minor compactions
*/
public int getMaxFilesToCompact() {
return maxFilesToCompact;
}
/**
* @return Ratio used for compaction
*/
public double getCompactionRatio() {
return compactionRatio;
}
/**
* @return Off peak Ratio used for compaction
*/
public double getCompactionRatioOffPeak() {
return offPeakCompactionRatio;
}
/**
* @return ThrottlePoint used for classifying small and large compactions
*/
public long getThrottlePoint() {
return throttlePoint;
}
/**
* @return Major compaction period from compaction.
* Major compactions are selected periodically according to this parameter plus jitter
*/
public long getMajorCompactionPeriod() {
return majorCompactionPeriod;
}
/**
* @return Major the jitter fraction, the fraction within which the major compaction
* period is randomly chosen from the majorCompactionPeriod in each store.
*/
public float getMajorCompactionJitter() {
return majorCompactionJitter;
}
/**
* @return Block locality ratio, the ratio at which we will include old regions with a single
* store file for major compaction. Used to improve block locality for regions that
* haven't had writes in a while but are still being read.
*/
public float getMinLocalityToForceCompact() {
return minLocalityToForceCompact;
}
public long getOffPeakMaxCompactSize() {
return offPeakMaxCompactSize;
}
public long getMaxCompactSize(boolean mayUseOffpeak) {
if (mayUseOffpeak) {
return getOffPeakMaxCompactSize();
} else {
return getMaxCompactSize();
}
}
public long getDateTieredMaxStoreFileAgeMillis() {
return dateTieredMaxStoreFileAgeMillis;
}
public int getDateTieredIncomingWindowMin() {
return dateTieredIncomingWindowMin;
}
public String getCompactionPolicyForDateTieredWindow() {
return compactionPolicyForDateTieredWindow;
}
public boolean useDateTieredSingleOutputForMinorCompaction() {
return dateTieredSingleOutputForMinorCompaction;
}
public String getDateTieredCompactionWindowFactory() {
return dateTieredCompactionWindowFactory;
}
}