Mercurial Hosting > luan
annotate src/goodjava/lucene/backup/BackupIndexWriter.java @ 1511:fb5be0e8ca54
better time_out
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Fri, 22 May 2020 19:10:14 -0600 |
| parents | 0ba144491a42 |
| children | 31b543826ca9 |
| 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; | |
|
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14 import org.apache.lucene.search.SortField; |
| 1488 | 15 import goodjava.io.IoUtils; |
| 1499 | 16 import goodjava.rpc.RpcClient; |
| 17 import goodjava.rpc.RpcCall; | |
| 18 import goodjava.rpc.RpcResult; | |
| 19 import goodjava.rpc.RpcException; | |
| 1488 | 20 import goodjava.lucene.api.LuceneIndexWriter; |
| 1499 | 21 import goodjava.logging.Logger; |
| 22 import goodjava.logging.LoggerFactory; | |
| 1488 | 23 import goodjava.lucene.logging.LoggingIndexWriter; |
| 24 import goodjava.lucene.logging.LogFile; | |
| 25 | |
| 26 | |
| 27 public class BackupIndexWriter extends LoggingIndexWriter { | |
| 1499 | 28 private static final Logger logger = LoggerFactory.getLogger(BackupIndexWriter.class); |
| 29 public static String[] backupDomains; | |
| 1488 | 30 private final String name; |
| 31 private final File dir; | |
| 1499 | 32 private boolean isSyncPending = false; |
| 1504 | 33 private final ExecutorService exec = Executors.newSingleThreadExecutor(); |
| 1488 | 34 |
| 35 public BackupIndexWriter(LuceneIndexWriter indexWriter,File logDir,String name) throws IOException { | |
| 36 super(indexWriter,logDir); | |
| 1499 | 37 if( backupDomains == null ) |
| 38 throw new RuntimeException("must set backupDomains"); | |
| 1488 | 39 this.name = name; |
| 40 File f = new File(System.getProperty("java.io.tmpdir")); | |
| 41 dir = new File(f,"goodjava.lucene/"+name); | |
| 1501 | 42 IoUtils.mkdirs(dir); |
| 1488 | 43 } |
| 44 | |
| 1504 | 45 public synchronized void close() throws IOException { |
| 46 super.close(); | |
| 47 exec.shutdown(); | |
| 48 } | |
| 49 | |
| 1488 | 50 public synchronized void commit() throws IOException { |
| 51 super.commit(); | |
| 1499 | 52 //sync(); |
| 53 if( !isSyncPending ) { | |
| 1504 | 54 exec.execute(sync); |
| 1499 | 55 isSyncPending = true; |
| 1488 | 56 } |
| 57 } | |
| 58 | |
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59 protected void doCheck(SortField sortField) throws IOException { |
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60 super.doCheck(sortField); |
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parents:
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61 runSyncWithChecksum(); |
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62 } |
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parents:
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diff
changeset
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63 |
| 1499 | 64 public void runSync() { |
| 1504 | 65 try { |
| 66 exec.submit(sync).get(); | |
| 67 } catch(Exception e) { | |
| 68 throw new RuntimeException(e); | |
| 69 } | |
| 1499 | 70 } |
| 71 | |
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72 public void runSyncWithChecksum() { |
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parents:
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73 try { |
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parents:
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diff
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74 exec.submit(syncWithChecksum).get(); |
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parents:
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75 } catch(Exception e) { |
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parents:
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76 throw new RuntimeException(e); |
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parents:
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77 } |
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parents:
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78 } |
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86c5e7000ecf
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parents:
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diff
changeset
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79 |
| 1499 | 80 private final Runnable sync = new Runnable() { |
| 1504 | 81 public void run() { |
| 1499 | 82 try { |
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parents:
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diff
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83 sync(false); |
| 1499 | 84 } catch(IOException e) { |
| 85 throw new RuntimeException(e); | |
| 86 } | |
| 87 } | |
| 88 }; | |
| 89 | |
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parents:
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diff
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90 private final Runnable syncWithChecksum = new Runnable() { |
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parents:
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91 public void run() { |
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parents:
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92 try { |
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parents:
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93 sync(true); |
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parents:
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94 } catch(IOException e) { |
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parents:
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95 throw new RuntimeException(e); |
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parents:
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96 } |
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parents:
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97 } |
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parents:
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98 }; |
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parents:
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99 |
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86c5e7000ecf
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parents:
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diff
changeset
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100 private void sync(boolean withChecksum) throws IOException { |
| 1499 | 101 List<LogFile> logs = new ArrayList<LogFile>(); |
| 102 synchronized(this) { | |
| 103 isSyncPending = false; | |
| 1500 | 104 clearDir(); |
| 1499 | 105 for( LogFile log : this.logs ) { |
| 106 File f = new File(dir,log.file.getName()); | |
| 107 IoUtils.link(log.file,f); | |
| 108 logs.add( new LogFile(f) ); | |
| 109 } | |
| 110 } | |
| 111 List logInfo = new ArrayList(); | |
| 112 Map<String,LogFile> logMap = new HashMap<String,LogFile>(); | |
| 113 for( LogFile log : logs ) { | |
| 114 Map fileInfo = new HashMap(); | |
| 115 fileInfo.put("name",log.file.getName()); | |
| 116 fileInfo.put("end",log.end()); | |
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parents:
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117 if( withChecksum ) |
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86c5e7000ecf
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parents:
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diff
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118 fileInfo.put("checksum",log.checksum()); |
| 1499 | 119 logInfo.add(fileInfo); |
| 120 logMap.put(log.file.getName(),log); | |
| 121 } | |
| 122 for( String backupDomain : backupDomains ) { | |
| 1509 | 123 RpcClient rpc = BackupServer.rpcClient(backupDomain); |
| 1499 | 124 RpcCall call = new RpcCall("check",name,logInfo); |
| 125 try { | |
| 126 while(true) { | |
| 127 rpc.write(call); | |
| 128 RpcResult result = rpc.read(); | |
| 129 logger.info(Arrays.asList(result.returnValues).toString()); | |
| 130 String status = (String)result.returnValues[0]; | |
| 131 if( status.equals("ok") ) { | |
| 132 break; | |
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lucene.backup checksum
Franklin Schmidt <fschmidt@gmail.com>
parents:
1506
diff
changeset
|
133 } else if( status.equals("missing") || status.equals("bad_checksum") ) { |
| 1499 | 134 String fileName = (String)result.returnValues[1]; |
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parents:
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diff
changeset
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135 if( status.equals("bad_checksum") ) |
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86c5e7000ecf
lucene.backup checksum
Franklin Schmidt <fschmidt@gmail.com>
parents:
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diff
changeset
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136 logger.error("bad_checksum "+fileName); |
| 1499 | 137 LogFile log = logMap.get(fileName); |
| 138 long len = log.end() - 8; | |
| 139 InputStream in = log.input(); | |
| 140 call = new RpcCall(in,len,"add",name,logInfo,fileName); | |
| 141 } else if( status.equals("incomplete") ) { | |
| 142 String fileName = (String)result.returnValues[1]; | |
| 143 long logEnd = (Long)result.returnValues[2]; | |
| 144 LogFile log = logMap.get(fileName); | |
| 145 long len = log.end() - logEnd; | |
| 146 InputStream in = log.input(); | |
| 147 in.skip(logEnd-8); | |
| 148 call = new RpcCall(in,len,"append",name,logInfo,fileName); | |
| 149 } else | |
| 150 throw new RuntimeException("status "+status); | |
| 151 } | |
| 152 } catch(RpcException e) { | |
| 153 logger.warn("",e); | |
| 154 } | |
| 155 rpc.close(); | |
| 156 } | |
| 1500 | 157 clearDir(); |
| 158 } | |
| 159 | |
| 160 private void clearDir() throws IOException { | |
| 161 for( File f : dir.listFiles() ) { | |
| 162 IoUtils.delete(f); | |
| 163 } | |
| 1499 | 164 } |
| 165 | |
| 1488 | 166 } |