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19 package org.apache.hadoop.hbase.master.normalizer;
20
21 import org.apache.commons.logging.Log;
22 import org.apache.commons.logging.LogFactory;
23 import org.apache.hadoop.hbase.HRegionInfo;
24 import org.apache.hadoop.hbase.classification.InterfaceAudience;
25 import org.apache.hadoop.hbase.client.Admin;
26
27 import java.io.IOException;
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32 @InterfaceAudience.Private
33 public class MergeNormalizationPlan implements NormalizationPlan {
34 private static final Log LOG = LogFactory.getLog(MergeNormalizationPlan.class.getName());
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36 private final HRegionInfo firstRegion;
37 private final HRegionInfo secondRegion;
38
39 public MergeNormalizationPlan(HRegionInfo firstRegion, HRegionInfo secondRegion) {
40 this.firstRegion = firstRegion;
41 this.secondRegion = secondRegion;
42 }
43
44 HRegionInfo getFirstRegion() {
45 return firstRegion;
46 }
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48 HRegionInfo getSecondRegion() {
49 return secondRegion;
50 }
51
52 @Override
53 public String toString() {
54 return "MergeNormalizationPlan{" +
55 "firstRegion=" + firstRegion +
56 ", secondRegion=" + secondRegion +
57 '}';
58 }
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63 @Override
64 public void execute(Admin admin) {
65 LOG.info("Executing merging normalization plan: " + this);
66 try {
67 admin.mergeRegions(firstRegion.getEncodedNameAsBytes(),
68 secondRegion.getEncodedNameAsBytes(), true);
69 } catch (IOException ex) {
70 LOG.error("Error during region merge: ", ex);
71 }
72 }
73 }