Examples of org.apache.hadoop.hbase.regionserver.HRegion.initialize()

Package org.apache.hadoop.hbase.regionserver

Class org.apache.hadoop.hbase.regionserver.HRegion

Examples of org.apache.hadoop.hbase.regionserver.HRegion.initialize()

org.apache.hadoop.hbase.regionserver.HRegion.initialize()
Initialize this region. @return What the next sequence (edit) id should be. @throws IOException e

  protected HRegion openClosedRegion(final HRegion closedRegion)
  throws IOException {
    HRegion r = new HRegion(closedRegion.getTableDir(), closedRegion.getLog(),
        closedRegion.getFilesystem(), closedRegion.getConf(),
        closedRegion.getRegionInfo(), closedRegion.getTableDesc(), null);
    r.initialize();
    return r;
  }


  /**
   * Create a table of name <code>name</code> with {@link COLUMNS} for

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        tableNameStr);
    runWALSplit(newConf);
    HLog wal2 = createWAL(newConf);
    HRegion region2 = new HRegion(basedir, wal2, FileSystem.get(newConf),
      newConf, hri, null);
    long seqid2 = region2.initialize();
    assertTrue(seqid2 > -1);


    // I can't close wal1.  Its been appropriated when we split.
    region2.close();
    wal2.closeAndDelete();

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    // Write countPerFamily edits into the three families.  Do a flush on one
    // of the families during the load of edits so its seqid is not same as
    // others to test we do right thing when different seqids.
    HLog wal = createWAL(this.conf);
    HRegion region = new HRegion(basedir, wal, this.fs, this.conf, hri, null);
    long seqid = region.initialize();
    // HRegionServer usually does this. It knows the largest seqid across all regions.
    wal.setSequenceNumber(seqid);
    boolean first = true;
    for (HColumnDescriptor hcd: hri.getTableDesc().getFamilies()) {
      addRegionEdits(rowName, hcd.getName(), countPerFamily, this.ee, region, "x");

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      protected void restoreEdit(KeyValue kv) throws IOException {
        super.restoreEdit(kv);
        throw new RuntimeException("Called when it should not have been!");
      }
    };
    long seqid2 = region2.initialize();
    // HRegionServer usually does this. It knows the largest seqid across all regions.
    wal2.setSequenceNumber(seqid2);
    assertTrue(seqid + result.size() < seqid2);


    // Next test.  Add more edits, then 'crash' this region by stealing its wal

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      protected void restoreEdit(KeyValue kv) throws IOException {
        super.restoreEdit(kv);
        countOfRestoredEdits.incrementAndGet();
      }
    };
    long seqid3 = region3.initialize();
    // HRegionServer usually does this. It knows the largest seqid across all regions.
    wal3.setSequenceNumber(seqid3);
    Result result3 = region3.get(g, null);
    // Assert that count of cells is same as before crash.
    assertEquals(result2.size(), result3.size());

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    try {
      TestFlusher flusher = new TestFlusher();
      final HRegion region = new HRegion(basedir, newWal, newFS, newConf, hri,
          flusher);
      flusher.r = region;
      long seqid = region.initialize();
      // Assert we flushed.
      assertTrue(flusher.count > 0);
      assertTrue(seqid > wal.getSequenceNumber());


      Get get = new Get(rowName);

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      throws IOException {
    //HRegionInfo info = new HRegionInfo(tableName, null, null, false);
    HRegion r = new HRegion(closedRegion.getTableDir(), closedRegion.getLog(),
        closedRegion.getFilesystem(), closedRegion.getConf(),
        closedRegion.getRegionInfo(), closedRegion.getTableDesc(), null);
    r.initialize();


    // this following piece is a hack. currently a coprocessorHost
    // is secretly loaded at OpenRegionHandler. we don't really
    // start a region server here, so just manually create cphost
    // and set it to region.

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    HLog wal3 = createWAL(this.conf);
    wal3.setSequenceNumber(wal2.getSequenceNumber());
    try {
      final HRegion region = new HRegion(basedir, wal3, this.fs, this.conf, hri,
        htd, null);
      long seqid = region.initialize();
      assertTrue(seqid > wal3.getSequenceNumber());


      // TODO: Scan all.
      region.close();
    } finally {

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      public Object run() throws Exception {
        runWALSplit(newConf);
        HLog wal2 = createWAL(newConf);
        HRegion region2 = new HRegion(basedir, wal2, FileSystem.get(newConf),
          newConf, hri, htd, null);
        long seqid2 = region2.initialize();
        assertTrue(seqid2 > -1);


        // I can't close wal1.  Its been appropriated when we split.
        region2.close();
        wal2.closeAndDelete();

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    // Write countPerFamily edits into the three families.  Do a flush on one
    // of the families during the load of edits so its seqid is not same as
    // others to test we do right thing when different seqids.
    HLog wal = createWAL(this.conf);
    HRegion region = new HRegion(basedir, wal, this.fs, this.conf, hri, htd, null);
    long seqid = region.initialize();
    // HRegionServer usually does this. It knows the largest seqid across all regions.
    wal.setSequenceNumber(seqid);
    boolean first = true;
    for (HColumnDescriptor hcd: htd.getFamilies()) {
      addRegionEdits(rowName, hcd.getName(), countPerFamily, this.ee, region, "x");

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