Examples of org.apache.hadoop.hbase.HRegionInfo

org.apache.hadoop.hbase.HRegionInfo
HRegion information. Contains HRegion id, start and end keys, a reference to this HRegions' table descriptor, etc.

      }
      // Ensure all user regions have been sent a close. Use this to
      // protect against the case where an open comes in after we start the
      // iterator of onlineRegions to close all user regions.
      for (Map.Entry<String, HRegion> e : this.onlineRegions.entrySet()) {
        HRegionInfo hri = e.getValue().getRegionInfo();
        if (!this.regionsInTransitionInRS.containsKey(hri.getEncodedNameAsBytes())
            && !closedRegions.contains(hri.getEncodedName())) {
          closedRegions.add(hri.getEncodedName());
          // Don't update zk with this close transition; pass false.
          closeRegion(hri, abort, false);
        }
      }
      // No regions in RIT, we could stop waiting now.

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    HRegion meta = null;
    HRegion root = null;
    this.lock.writeLock().lock();
    try {
      for (Map.Entry<String, HRegion> e: onlineRegions.entrySet()) {
        HRegionInfo hri = e.getValue().getRegionInfo();
        if (hri.isRootRegion()) {
          root = e.getValue();
        } else if (hri.isMetaRegion()) {
          meta = e.getValue();
        }
        if (meta != null && root != null) break;
      }
    } finally {

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   */
   public List<HRegion> getOnlineRegions(byte[] tableName) {
     List<HRegion> tableRegions = new ArrayList<HRegion>();
     synchronized (this.onlineRegions) {
       for (HRegion region: this.onlineRegions.values()) {
         HRegionInfo regionInfo = region.getRegionInfo();
         if(Bytes.equals(regionInfo.getTableName(), tableName)) {
           tableRegions.add(region);
         }
       }
     }
     return tableRegions;

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   */
  public String getCompactionState(final byte[] regionName) throws IOException {
      checkOpen();
      requestCount.incrementAndGet();
      HRegion region = getRegion(regionName);
      HRegionInfo info = region.getRegionInfo();
      return CompactionRequest.getCompactionState(info.getRegionId()).name();
  }

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    // make sure the file exists
    if (!fs.exists(regionInfo)) {
      throw new CorruptedSnapshotException("No region info found for region:" + region, snapshot);
    }
    FSDataInputStream in = fs.open(regionInfo);
    HRegionInfo found = new HRegionInfo();
    try {
      found.readFields(in);
      if (!region.equals(found)) {
        throw new CorruptedSnapshotException("Found region info (" + found
           + ") doesn't match expected region:" + region, snapshot);
      }
    } finally {

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    try {
      // Bootstrapping, make sure blockcache is off.  Else, one will be
      // created here in bootstap and it'll need to be cleaned up.  Better to
      // not make it in first place.  Turn off block caching for bootstrap.
      // Enable after.
      HRegionInfo rootHRI = new HRegionInfo(HRegionInfo.ROOT_REGIONINFO);
      setInfoFamilyCachingForRoot(false);
      HRegionInfo metaHRI = new HRegionInfo(HRegionInfo.FIRST_META_REGIONINFO);
      setInfoFamilyCachingForMeta(false);
      HRegion root = HRegion.createHRegion(rootHRI, rd, c,
          HTableDescriptor.ROOT_TABLEDESC);
      HRegion meta = HRegion.createHRegion(metaHRI, rd, c,
          HTableDescriptor.META_TABLEDESC);

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  @Test
  public void testColumnCountGetFilter() throws IOException {
    String family = "Family";
    HTableDescriptor htd = new HTableDescriptor("testColumnCountGetFilter");
    htd.addFamily(new HColumnDescriptor(family));
    HRegionInfo info = new HRegionInfo(htd.getName(), null, null, false);
    HRegion region = HRegion.createHRegion(info, TEST_UTIL.
      getDataTestDir(), TEST_UTIL.getConfiguration(), htd);
    try {
      String valueString = "ValueString";
      String row = "row-1";

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  @Test
  public void testColumnCountGetFilterWithFilterList() throws IOException {
    String family = "Family";
    HTableDescriptor htd = new HTableDescriptor("testColumnCountGetFilter");
    htd.addFamily(new HColumnDescriptor(family));
    HRegionInfo info = new HRegionInfo(htd.getName(), null, null, false);
    HRegion region = HRegion.createHRegion(info, TEST_UTIL.
      getDataTestDir(), TEST_UTIL.getConfiguration(), htd);
    try {
      String valueString = "ValueString";
      String row = "row-1";

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        // This will happen when the RS went down and the call back for the SPLIITING or SPLIT
        // has not yet happened for node Deleted event. In that case if the region was actually
        // split but the RS had gone down before completing the split process then will not try
        // to assign the parent region again. In that case we should make the region offline
        // and also delete the region from RIT.
        HRegionInfo region = rit.getRegion();
        AssignmentManager am = assignmentManager;
        am.regionOffline(region);
        ritsGoingToServer.remove(region);
      }
      // If the table was partially disabled and the RS went down, we should clear the RIT

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    }
    if (!assignmentManager.getZKTable().isDisablingOrDisabledTable(
        rit.getRegion().getTableNameAsString())) {
      return toAssign;
    }
    HRegionInfo hri = rit.getRegion();
    AssignmentManager am = assignmentManager;
    am.deleteClosingOrClosedNode(hri);
    am.regionOffline(hri);
    // To avoid region assignment if table is in disabling or disabled state.
    toAssign.remove(hri);

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