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

Package org.apache.hadoop.hbase.regionserver

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

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

org.apache.hadoop.hbase.regionserver.HRegion.compactStores()
This is a helper function that compact all the stores synchronously It is used by utilities and testing @param majorCompaction True to force a major compaction regardless of thresholds @throws IOException e

    assertEquals(expectedBlockMiss, cache.getStats().getMissCount());
    // compact, net minus two blocks, two hits, no misses
    System.out.println("Compacting");
    assertEquals(2, store.getStorefilesCount());
    store.triggerMajorCompaction();
    region.compactStores();
    waitForStoreFileCount(store, 1, 10000); // wait 10 seconds max
    assertEquals(1, store.getStorefilesCount());
    expectedBlockCount -= 2; // evicted two blocks, cached none
    assertEquals(expectedBlockCount, cache.getBlockCount());
    expectedBlockHits += 2;

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    region.bulkLoadHFiles(hfs, true);
    final int rowsInsertedCount = 31;
    assertEquals(rowsInsertedCount, getScannedCount(region.getScanner(new Scan())));


    // major compact to turn all the bulk loaded files into one normal file
    region.compactStores(true);
    assertEquals(rowsInsertedCount, getScannedCount(region.getScanner(new Scan())));


    // Now 'crash' the region by stealing its wal
    final Configuration newConf = HBaseConfiguration.create(this.conf);
    User user = HBaseTestingUtility.getDifferentUser(newConf,

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    for (int i = 0; i < 3; i++) {
      addContent(region, fam3);
      region.flushcache();
    }


    region.compactStores();


    byte [] splitRow = region.checkSplit();


    assertNotNull(splitRow);
    HRegion [] regions = split(region, splitRow);

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    for (int i = 0; i < 3; i++) {
      addContent(region, fam3);
      region.flushcache();
    }


    region.compactStores();


    byte [] splitRow = region.checkSplit();


    assertNotNull(splitRow);
    HRegion [] regions = split(region, splitRow);

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  }


  private HRegion openMetaRegion(HRegionInfo metaInfo) throws IOException {
    HRegion meta =
      HRegion.openHRegion(metaInfo, this.rootdir, getLog(), this.conf);
    meta.compactStores();
    return meta;
  }
 
  /**
   * Set a single region on/offline.

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    // Exercise both compaction codepaths.
    if (explicitCompaction) {
      HStore store = (HStore)region.getStore(FAMILY_BYTES);
      store.compactRecentForTestingAssumingDefaultPolicy(totalNumFiles);
    } else {
      region.compactStores();
    }


    region.close();
  }
}

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    assertEquals(expectedBlockMiss, cache.getStats().getMissCount());
    // compact, net minus two blocks, two hits, no misses
    System.out.println("Compacting");
    assertEquals(2, store.getStorefilesCount());
    store.triggerMajorCompaction();
    region.compactStores();
    waitForStoreFileCount(store, 1, 10000); // wait 10 seconds max
    assertEquals(1, store.getStorefilesCount());
    expectedBlockCount -= 2; // evicted two blocks, cached none
    assertEquals(expectedBlockCount, cache.getBlockCount());
    expectedBlockHits += 2;

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    for (int i = 0; i < 3; i++) {
      addContent(region, fam3);
      region.flushcache();
    }


    region.compactStores();


    byte [] splitRow = region.checkSplit();


    assertNotNull(splitRow);
    HRegion [] regions = split(region, splitRow);

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    for (int i = 0; i < 3; i++) {
      addContent(region, fam3);
      region.flushcache();
    }


    region.compactStores();


    byte [] splitRow = region.checkSplit();


    assertNotNull(splitRow);
    HRegion [] regions = split(region, splitRow);

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    // Roll the log and compact table2, to have compaction record in the 2nd WAL.
    fshLog.rollWriter();
    assertEquals("Should have WAL; one table is not flushed", 1, fshLog.getNumRolledLogFiles());
    admin.flush(table2.getTableName());
    region.compactStores();
    // Wait for compaction in case if flush triggered it before us.
    Assert.assertNotNull(s);
    for (int waitTime = 3000; s.getStorefilesCount() > 1 && waitTime > 0; waitTime -= 200) {
      Threads.sleepWithoutInterrupt(200);
    }

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