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20 package org.apache.hadoop.hbase.regionserver.compactions;
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22 import org.apache.commons.logging.Log;
23 import org.apache.commons.logging.LogFactory;
24 import org.apache.hadoop.hbase.classification.InterfaceAudience;
25 import org.apache.hadoop.conf.Configuration;
26 import org.apache.hadoop.hbase.HConstants;
27 import org.apache.hadoop.hbase.regionserver.StoreConfigInformation;
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44 @InterfaceAudience.Private
45 public class CompactionConfiguration {
46
47 static final Log LOG = LogFactory.getLog(CompactionConfiguration.class);
48
49 private static final String CONFIG_PREFIX = "hbase.hstore.compaction.";
50 public static final String RATIO_KEY = CONFIG_PREFIX + "ratio";
51 public static final String MIN_KEY = CONFIG_PREFIX + "min";
52 public static final String MAX_KEY = CONFIG_PREFIX + "max";
53
54 Configuration conf;
55 StoreConfigInformation storeConfigInfo;
56
57 long maxCompactSize;
58 long minCompactSize;
59 int minFilesToCompact;
60 int maxFilesToCompact;
61 double compactionRatio;
62 double offPeekCompactionRatio;
63 long throttlePoint;
64 long majorCompactionPeriod;
65 float majorCompactionJitter;
66
67 CompactionConfiguration(Configuration conf, StoreConfigInformation storeConfigInfo) {
68 this.conf = conf;
69 this.storeConfigInfo = storeConfigInfo;
70
71 maxCompactSize = conf.getLong(CONFIG_PREFIX + "max.size", Long.MAX_VALUE);
72 minCompactSize = conf.getLong(CONFIG_PREFIX + "min.size",
73 storeConfigInfo.getMemstoreFlushSize());
74 minFilesToCompact = Math.max(2, conf.getInt(MIN_KEY,
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76 maxFilesToCompact = conf.getInt(MAX_KEY, 10);
77 compactionRatio = conf.getFloat(RATIO_KEY, 1.2F);
78 offPeekCompactionRatio = conf.getFloat(CONFIG_PREFIX + "ratio.offpeak", 5.0F);
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80 throttlePoint = conf.getLong("hbase.regionserver.thread.compaction.throttle",
81 2 * maxFilesToCompact * storeConfigInfo.getMemstoreFlushSize());
82 majorCompactionPeriod = conf.getLong(HConstants.MAJOR_COMPACTION_PERIOD, 1000*60*60*24*7);
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84 majorCompactionJitter = conf.getFloat("hbase.hregion.majorcompaction.jitter", 0.50F);
85
86 LOG.info(this);
87 }
88
89 @Override
90 public String toString() {
91 return String.format(
92 "size [%d, %d); files [%d, %d); ratio %f; off-peak ratio %f; throttle point %d;"
93 + " major period %d, major jitter %f",
94 minCompactSize,
95 maxCompactSize,
96 minFilesToCompact,
97 maxFilesToCompact,
98 compactionRatio,
99 offPeekCompactionRatio,
100 throttlePoint,
101 majorCompactionPeriod,
102 majorCompactionJitter);
103 }
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108 long getMinCompactSize() {
109 return minCompactSize;
110 }
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115 long getMaxCompactSize() {
116 return maxCompactSize;
117 }
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122 int getMinFilesToCompact() {
123 return minFilesToCompact;
124 }
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129 int getMaxFilesToCompact() {
130 return maxFilesToCompact;
131 }
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136 double getCompactionRatio() {
137 return compactionRatio;
138 }
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143 double getCompactionRatioOffPeak() {
144 return offPeekCompactionRatio;
145 }
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150 long getThrottlePoint() {
151 return throttlePoint;
152 }
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158 long getMajorCompactionPeriod() {
159 return majorCompactionPeriod;
160 }
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166 float getMajorCompactionJitter() {
167 return majorCompactionJitter;
168 }
169 }