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20 package org.apache.hadoop.hbase.master;
21
22 import org.apache.hadoop.hbase.HConstants;
23 import org.apache.hadoop.hbase.HRegionInfo;
24 import org.apache.hadoop.hbase.HServerAddress;
25 import org.apache.hadoop.hbase.HServerInfo;
26 import org.apache.hadoop.hbase.client.Put;
27 import org.apache.hadoop.hbase.ipc.HRegionInterface;
28 import org.apache.hadoop.hbase.util.Bytes;
29
30 import java.io.IOException;
31
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36
37 public class ProcessRegionOpen extends ProcessRegionStatusChange {
38 protected final HServerInfo serverInfo;
39
40
41
42
43
44
45 public ProcessRegionOpen(HMaster master, HServerInfo info,
46 HRegionInfo regionInfo) {
47 super(master, regionInfo);
48 if (info == null) {
49 throw new NullPointerException("HServerInfo cannot be null; " +
50 "hbase-958 debugging");
51 }
52 this.serverInfo = info;
53 }
54
55 @Override
56 public String toString() {
57 return "PendingOpenOperation from " + serverInfo.getServerName();
58 }
59
60 @Override
61 protected boolean process() throws IOException {
62
63 if (!metaRegionAvailable()) {
64
65
66
67
68 return true;
69 }
70 HRegionInterface server =
71 master.getServerConnection().getHRegionConnection(getMetaRegion().getServer());
72 LOG.info(regionInfo.getRegionNameAsString() + " open on " +
73 serverInfo.getServerName());
74
75
76 Put p = new Put(regionInfo.getRegionName());
77 p.add(HConstants.CATALOG_FAMILY, HConstants.SERVER_QUALIFIER,
78 Bytes.toBytes(serverInfo.getHostnamePort()));
79 p.add(HConstants.CATALOG_FAMILY, HConstants.STARTCODE_QUALIFIER,
80 Bytes.toBytes(serverInfo.getStartCode()));
81 server.put(metaRegionName, p);
82 LOG.info("Updated row " + regionInfo.getRegionNameAsString() +
83 " in region " + Bytes.toString(metaRegionName) + " with startcode=" +
84 serverInfo.getStartCode() + ", server=" + serverInfo.getHostnamePort());
85 synchronized (master.getRegionManager()) {
86 if (isMetaTable) {
87
88 MetaRegion m =
89 new MetaRegion(new HServerAddress(serverInfo.getServerAddress()),
90 regionInfo);
91 if (!master.getRegionManager().isInitialMetaScanComplete()) {
92
93 if (LOG.isDebugEnabled()) {
94 LOG.debug("Adding " + m.toString() + " to regions to scan");
95 }
96 master.getRegionManager().addMetaRegionToScan(m);
97 } else {
98
99 if (LOG.isDebugEnabled()) {
100 LOG.debug("Adding to onlineMetaRegions: " + m.toString());
101 }
102 master.getRegionManager().putMetaRegionOnline(m);
103
104
105 master.getRegionManager().metaScannerThread.triggerNow();
106 }
107 }
108
109
110
111 if(master.getRegionManager().
112 isOfflined(regionInfo.getRegionNameAsString())) {
113 LOG.warn("We opened a region while it was asked to be closed.");
114 } else {
115 master.getRegionManager().removeRegion(regionInfo);
116 }
117 return true;
118 }
119 }
120
121 @Override
122 protected int getPriority() {
123 return 0;
124 }
125 }