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

    Mockito.when(mockRS.getRegionServerAccounting()).thenReturn(rsa);
    ServerName mockServerName = Mockito.mock(ServerName.class);
    Mockito.when(mockServerName.getServerName()).thenReturn(tableNameStr + "-server-1234");
    Mockito.when(mockRS.getServerName()).thenReturn(mockServerName);
    HRegion region = new HRegion(basedir, wal, this.fs, this.conf, hri, htd, mockRS);
    long seqid = region.initialize();
    // HRegionServer usually does this. It knows the largest seqid across all regions.
    wal.setSequenceNumber(seqid);
    
    //make an attempted write to the primary that should also be indexed
    byte[] rowkey = Bytes.toBytes("indexed_row_key");

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    runWALSplit(this.conf);
    HLog wal2 = createWAL(this.conf);
    HRegion region1 = new HRegion(basedir, wal2, this.fs, this.conf, hri, htd, mockRS);


    // initialize the region - this should replay the WALEdits from the WAL
    region1.initialize();


    // now check to ensure that we wrote to the index table
    HTable index = new HTable(UTIL.getConfiguration(), INDEX_TABLE_NAME);
    int indexSize = getKeyValueCount(index);
    assertEquals("Index wasn't propertly updated from WAL replay!", 1, indexSize);

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  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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          currentRegion.initialize();
          currentSize = currentRegion.getLargestHStoreSize();
        }
        nextRegion =
          HRegion.newHRegion(tabledir, hlog, fs, conf, info[i + 1], null);
        nextRegion.initialize();
        nextSize = nextRegion.getLargestHStoreSize();


        if ((currentSize + nextSize) <= (maxFilesize / 2)) {
          // We merge two adjacent regions if their total size is less than
          // one half of the desired maximum size

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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,
          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, 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 boolean restoreEdit(Store s, KeyValue kv) {
        super.restoreEdit(s, 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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            boolean b = super.restoreEdit(s, kv);
            countOfRestoredEdits.incrementAndGet();
            return b;
          }
        };
        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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              boolean b = super.internalFlushcache(wal, myseqid);
              flushcount.incrementAndGet();
              return b;
            };
          };
          long seqid = region.initialize();
          // We flushed during init.
          assertTrue(flushcount.get() > 0);
          assertTrue(seqid > wal.getSequenceNumber());


          Get get = new Get(rowName);

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