Examples of org.apache.hadoop.hbase.regionserver.wal.HLog$Entry

Package org.apache.hadoop.hbase.regionserver.wal

Examples of org.apache.hadoop.hbase.regionserver.wal.HLog$Entry

org.apache.hadoop.hbase.regionserver.wal.HLog
Utility class that lets us keep track of the edit with it's key Only used when splitting logs

  }


  @Override
  protected void doDelete(HttpServletRequest req, HttpServletResponse resp)
      throws ServletException, IOException {
    Entry e = entry(req);
    S3Object remove = map.remove(e);
    if (remove == null) {
      resp.sendError(404, "Not found " + e);
    } else {
      resp.sendError(HttpURLConnection.HTTP_NO_CONTENT, "Deleted");

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    }


  }


  private Entry entry(HttpServletRequest req) {
    return new Entry(key(uri(req)));
  }

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        log("doGet " + uri);
    if ("/".equals(uri.getPath())) {
      list(req, resp);
    } else {
      String key = uri.getPath().substring(1);
      Entry e = new Entry(key);
      S3Object obj = map.get(e);
        if (debug)
          log("map.get(" + key + ") = " + obj);
      if (obj == null) {
        resp.sendError(404, "Not here: " + e);

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    if (maxKeysStr != null)
      maxKeys = Integer.parseInt(maxKeysStr);
    Writer w = new Writer();
    SortedMap<Entry, S3Object> submap = new TreeMap<Entry, S3Object>(map);
    if (prefix != null)
      submap = submap.tailMap(new Entry(prefix));
    int keyCount = 0;
    boolean truncated = false;
    String nextMarker = null;
    for (Entry e : submap.keySet()) {
      if (++keyCount > maxKeys) {

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    log("doPut " + uri);
    if ("/".equals(uri.getPath())) {
      log("create bucket");
      bucket = true;
    } else {
      Entry e = new Entry(key(uri));
      e.setLastModified(new Date());
      e.setSize(req.getContentLength());
      e.setOwner(new Owner("id", "name"));
      ByteArrayOutputStream os = new ByteArrayOutputStream();
      ServletInputStream is = req.getInputStream();
      byte b[] = new byte[128];
      while (true) {
        int len = is.read(b);

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   * @param oldLogDir
   * @return WAL instance.
   * @throws IOException
   */
  protected HLog instantiateHLog(Path logdir, Path oldLogDir) throws IOException {
    return new HLog(this.fs.getBackingFs(), logdir, oldLogDir, this.conf,
      getWALActionListeners(), this.serverNameFromMasterPOV.toString());
  }

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    return c.getBlockCacheColumnFamilySummaries(this.conf);
  }


  @Override
  public byte[][] rollHLogWriter() throws IOException, FailedLogCloseException {
    HLog wal = this.getWAL();
    return wal.rollWriter(true);
  }

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    Path regionDir = HRegion.getRegionDir(tableDir, info.getEncodedName());
    FileSystem fs = FileSystem.get(conf);
    fs.mkdirs(regionDir);
    // Write HRI to a file in case we need to recover .META.
    writeRegioninfoOnFilesystem(info, regionDir, fs, conf);
    HLog effectiveHLog = hlog;
    if (hlog == null && !ignoreHLog) {
      effectiveHLog = new HLog(fs, new Path(regionDir, HConstants.HREGION_LOGDIR_NAME),
          new Path(regionDir, HConstants.HREGION_OLDLOGDIR_NAME), conf);
    }
    HRegion region = HRegion.newHRegion(tableDir,
        effectiveHLog, fs, conf, info, hTableDescriptor, null);
    if (initialize) {

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      listPaths(fs, b.getRegionDir());
    }


    Configuration conf = a.getConf();
    HTableDescriptor tabledesc = a.getTableDesc();
    HLog log = a.getLog();
    Path tableDir = a.getTableDir();
    // Presume both are of same region type -- i.e. both user or catalog
    // table regions.  This way can use comparator.
    final byte[] startKey =
      (a.comparator.matchingRows(a.getStartKey(), 0, a.getStartKey().length,

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    final Path logdir = new Path(c.get("hbase.tmp.dir"),
        "hlog" + tableDir.getName()
        + EnvironmentEdgeManager.currentTimeMillis());
    final Path oldLogDir = new Path(c.get("hbase.tmp.dir"),
        HConstants.HREGION_OLDLOGDIR_NAME);
    final HLog log = new HLog(fs, logdir, oldLogDir, c);
    try {
      processTable(fs, tableDir, log, c, majorCompact);
    } finally {
       log.close();
       // TODO: is this still right?
       BlockCache bc = new CacheConfig(c).getBlockCache();
       if (bc != null) bc.shutdown();
    }
  }

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