コード例 #1
0
    public void close(Reporter reporter) throws IOException {
      for (Integer shard : lps.keySet()) {
        String lpDir = localManager.localTmpDir("" + shard);
        LOG.info("Closing LP for shard " + shard + " at " + lpDir);
        lps.get(shard).close();
        LOG.info("Closed LP for shard " + shard + " at " + lpDir);
        progress();
        String remoteDir = args.outputDirHdfs + "/" + shard;

        // Do all this stuff to ensure that S3 actually does delete
        int deleteAttempt = 4;
        while (fileSystem.exists(new Path(remoteDir)) && deleteAttempt > 0) {
          LOG.info("Deleting existing shard " + shard + " at " + remoteDir);
          fileSystem.delete(new Path(remoteDir), true);
          --deleteAttempt;
        }
        if (fileSystem.exists(new Path(remoteDir)) && deleteAttempt == 0) {
          throw new IOException(
              "Failed to delete shard "
                  + shard
                  + " at "
                  + remoteDir
                  + " after "
                  + deleteAttempt
                  + " attempts!");
        } else {
          LOG.info("Deleted existing shard " + shard + " at " + remoteDir);
        }
        LOG.info("Copying " + lpDir + " to " + remoteDir);
        fileSystem.copyFromLocalFile(new Path(lpDir), new Path(remoteDir));
        LOG.info("Copied " + lpDir + " to " + remoteDir);
        progress();
      }
      localManager.cleanup();
    }
コード例 #2
0
    public ElephantRecordWriter(Configuration conf, Args args, Progressable progressable)
        throws IOException {
      fileSystem = Utils.getFS(args.outputDirHdfs, conf);
      this.args = args;

      this.progressable = progressable;
      localManager =
          new LocalElephantManager(fileSystem, args.spec, LocalElephantManager.getTmpDirs(conf));
    }
コード例 #3
0
 public void bumpProgress() {
   numWritten++;
   if (numWritten % 25000 == 0) {
     long now = System.currentTimeMillis();
     long delta = now - lastCheckpoint;
     lastCheckpoint = now;
     LOG.info("Wrote last 25000 records in " + delta + " ms");
     localManager.progress();
   }
 }
コード例 #4
0
    private Persistence retrieveShard(int shardIdx) throws IOException {
      Persistence lp = null;

      if (lps.containsKey(shardIdx)) {
        lp = lps.get(shardIdx);
      } else {
        String localShard = localManager.downloadRemoteShard("" + shardIdx, null);

        Coordinator fact = args.spec.getCoordinator();
        lp = fact.openPersistenceForAppend(localShard, args.spec.getPersistenceOptions());

        lps.put(shardIdx, lp);
        progress();
      }
      return lp;
    }