Mercurial Hosting > luan
annotate src/goodjava/lucene/backup/BackupIndexWriter.java @ 1508:86c5e7000ecf
lucene.backup checksum
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Sat, 16 May 2020 17:56:02 -0600 |
| parents | d80395468b4e |
| children | 0ba144491a42 |
| rev | line source |
|---|---|
| 1488 | 1 package goodjava.lucene.backup; |
| 2 | |
| 3 import java.io.File; | |
| 1499 | 4 import java.io.InputStream; |
| 1488 | 5 import java.io.IOException; |
| 1499 | 6 import java.net.Socket; |
| 1488 | 7 import java.util.List; |
| 8 import java.util.ArrayList; | |
| 1499 | 9 import java.util.Map; |
| 10 import java.util.HashMap; | |
| 11 import java.util.Arrays; | |
| 1504 | 12 import java.util.concurrent.Executors; |
| 13 import java.util.concurrent.ExecutorService; | |
| 1499 | 14 import javax.net.ssl.SSLSocket; |
|
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15 import org.apache.lucene.search.SortField; |
| 1488 | 16 import goodjava.io.IoUtils; |
| 1499 | 17 import goodjava.rpc.RpcClient; |
| 18 import goodjava.rpc.RpcCall; | |
| 19 import goodjava.rpc.RpcResult; | |
| 20 import goodjava.rpc.RpcException; | |
| 1488 | 21 import goodjava.lucene.api.LuceneIndexWriter; |
| 1499 | 22 import goodjava.logging.Logger; |
| 23 import goodjava.logging.LoggerFactory; | |
| 1488 | 24 import goodjava.lucene.logging.LoggingIndexWriter; |
| 25 import goodjava.lucene.logging.LogFile; | |
| 26 | |
| 27 | |
| 28 public class BackupIndexWriter extends LoggingIndexWriter { | |
| 1499 | 29 private static final Logger logger = LoggerFactory.getLogger(BackupIndexWriter.class); |
| 30 public static String[] backupDomains; | |
| 1488 | 31 private final String name; |
| 32 private final File dir; | |
| 1499 | 33 private boolean isSyncPending = false; |
| 1504 | 34 private final ExecutorService exec = Executors.newSingleThreadExecutor(); |
| 1488 | 35 |
| 36 public BackupIndexWriter(LuceneIndexWriter indexWriter,File logDir,String name) throws IOException { | |
| 37 super(indexWriter,logDir); | |
| 1499 | 38 if( backupDomains == null ) |
| 39 throw new RuntimeException("must set backupDomains"); | |
| 1488 | 40 this.name = name; |
| 41 File f = new File(System.getProperty("java.io.tmpdir")); | |
| 42 dir = new File(f,"goodjava.lucene/"+name); | |
| 1501 | 43 IoUtils.mkdirs(dir); |
| 1488 | 44 } |
| 45 | |
| 1504 | 46 public synchronized void close() throws IOException { |
| 47 super.close(); | |
| 48 exec.shutdown(); | |
| 49 } | |
| 50 | |
| 1488 | 51 public synchronized void commit() throws IOException { |
| 52 super.commit(); | |
| 1499 | 53 //sync(); |
| 54 if( !isSyncPending ) { | |
| 1504 | 55 exec.execute(sync); |
| 1499 | 56 isSyncPending = true; |
| 1488 | 57 } |
| 58 } | |
| 59 | |
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60 protected void doCheck(SortField sortField) throws IOException { |
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61 super.doCheck(sortField); |
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62 runSyncWithChecksum(); |
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63 } |
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parents:
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64 |
| 1499 | 65 public void runSync() { |
| 1504 | 66 try { |
| 67 exec.submit(sync).get(); | |
| 68 } catch(Exception e) { | |
| 69 throw new RuntimeException(e); | |
| 70 } | |
| 1499 | 71 } |
| 72 | |
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73 public void runSyncWithChecksum() { |
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parents:
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74 try { |
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parents:
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75 exec.submit(syncWithChecksum).get(); |
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parents:
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76 } catch(Exception e) { |
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77 throw new RuntimeException(e); |
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78 } |
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79 } |
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parents:
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80 |
| 1499 | 81 private final Runnable sync = new Runnable() { |
| 1504 | 82 public void run() { |
| 1499 | 83 try { |
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84 sync(false); |
| 1499 | 85 } catch(IOException e) { |
| 86 throw new RuntimeException(e); | |
| 87 } | |
| 88 } | |
| 89 }; | |
| 90 | |
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91 private final Runnable syncWithChecksum = new Runnable() { |
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92 public void run() { |
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93 try { |
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94 sync(true); |
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95 } catch(IOException e) { |
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96 throw new RuntimeException(e); |
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97 } |
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98 } |
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99 }; |
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100 |
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parents:
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101 private void sync(boolean withChecksum) throws IOException { |
| 1499 | 102 List<LogFile> logs = new ArrayList<LogFile>(); |
| 103 synchronized(this) { | |
| 104 isSyncPending = false; | |
| 1500 | 105 clearDir(); |
| 1499 | 106 for( LogFile log : this.logs ) { |
| 107 File f = new File(dir,log.file.getName()); | |
| 108 IoUtils.link(log.file,f); | |
| 109 logs.add( new LogFile(f) ); | |
| 110 } | |
| 111 } | |
| 112 List logInfo = new ArrayList(); | |
| 113 Map<String,LogFile> logMap = new HashMap<String,LogFile>(); | |
| 114 for( LogFile log : logs ) { | |
| 115 Map fileInfo = new HashMap(); | |
| 116 fileInfo.put("name",log.file.getName()); | |
| 117 fileInfo.put("end",log.end()); | |
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parents:
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118 if( withChecksum ) |
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parents:
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119 fileInfo.put("checksum",log.checksum()); |
| 1499 | 120 logInfo.add(fileInfo); |
| 121 logMap.put(log.file.getName(),log); | |
| 122 } | |
| 123 for( String backupDomain : backupDomains ) { | |
| 124 RpcClient rpc = rpcClient(backupDomain); | |
| 125 RpcCall call = new RpcCall("check",name,logInfo); | |
| 126 try { | |
| 127 while(true) { | |
| 128 rpc.write(call); | |
| 129 RpcResult result = rpc.read(); | |
| 130 logger.info(Arrays.asList(result.returnValues).toString()); | |
| 131 String status = (String)result.returnValues[0]; | |
| 132 if( status.equals("ok") ) { | |
| 133 break; | |
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parents:
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diff
changeset
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134 } else if( status.equals("missing") || status.equals("bad_checksum") ) { |
| 1499 | 135 String fileName = (String)result.returnValues[1]; |
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parents:
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diff
changeset
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136 if( status.equals("bad_checksum") ) |
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86c5e7000ecf
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parents:
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diff
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137 logger.error("bad_checksum "+fileName); |
| 1499 | 138 LogFile log = logMap.get(fileName); |
| 139 long len = log.end() - 8; | |
| 140 InputStream in = log.input(); | |
| 141 call = new RpcCall(in,len,"add",name,logInfo,fileName); | |
| 142 } else if( status.equals("incomplete") ) { | |
| 143 String fileName = (String)result.returnValues[1]; | |
| 144 long logEnd = (Long)result.returnValues[2]; | |
| 145 LogFile log = logMap.get(fileName); | |
| 146 long len = log.end() - logEnd; | |
| 147 InputStream in = log.input(); | |
| 148 in.skip(logEnd-8); | |
| 149 call = new RpcCall(in,len,"append",name,logInfo,fileName); | |
| 150 } else | |
| 151 throw new RuntimeException("status "+status); | |
| 152 } | |
| 153 } catch(RpcException e) { | |
| 154 logger.warn("",e); | |
| 155 } | |
| 156 rpc.close(); | |
| 157 } | |
| 1500 | 158 clearDir(); |
| 159 } | |
| 160 | |
| 161 private void clearDir() throws IOException { | |
| 162 for( File f : dir.listFiles() ) { | |
| 163 IoUtils.delete(f); | |
| 164 } | |
| 1499 | 165 } |
| 166 | |
| 167 static RpcClient rpcClient(String backupDomain) throws IOException { | |
| 168 Socket socket; | |
| 169 if( BackupServer.cipherSuites == null ) { | |
| 170 socket = new Socket(backupDomain,BackupServer.port); | |
| 171 } else { | |
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172 socket = IoUtils.getSSLSocketFactory().createSocket(backupDomain,BackupServer.port); |
| 1499 | 173 ((SSLSocket)socket).setEnabledCipherSuites(BackupServer.cipherSuites); |
| 174 } | |
| 175 return new RpcClient(socket); | |
| 176 } | |
| 1488 | 177 } |