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

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

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

org.apache.hadoop.hbase.regionserver.wal.HLog
This class is responsible to hold the HLog's appended Entry list and to sync them according to a configurable interval. Deferred log flushing works first by piggy backing on this process by simply not sync'ing the appended Entry. It can also be sync'd by other non-deferred log flushed entries outside of this thread.

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


    Configuration conf = a.getBaseConf();
    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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      = HLog.getHLogDirectoryName(this.serverNameFromMasterPOV.toString());


      Path logdir = new Path(rootDir, logName);
      final Path oldLogDir = new Path(rootDir, HConstants.HREGION_OLDLOGDIR_NAME);
      if (LOG.isDebugEnabled()) LOG.debug("logdir=" + logdir);
      this.hlogForMeta = new HLog(this.fs.getBackingFs(), logdir, oldLogDir, this.conf,
          getMetaWALActionListeners(), false, this.serverNameFromMasterPOV.toString(), true);
    }
    return this.hlogForMeta;
  }

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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);
    HBaseFileSystem.makeDirOnFileSystem(fs, 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.getBaseConf();
    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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      = HLog.getHLogDirectoryName(this.serverNameFromMasterPOV.toString());


      Path logdir = new Path(rootDir, logName);
      final Path oldLogDir = new Path(rootDir, HConstants.HREGION_OLDLOGDIR_NAME);
      if (LOG.isDebugEnabled()) LOG.debug("logdir=" + logdir);
      this.hlogForMeta = new HLog(this.fs.getBackingFs(), logdir, oldLogDir, this.conf,
          getMetaWALActionListeners(), false, this.serverNameFromMasterPOV.toString(), true);
    }
    return this.hlogForMeta;
  }

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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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