Java MetaEditor.addDaughter方法代码示例

import org.apache.hadoop.hbase.catalog.MetaEditor; //导入方法依赖的package包/类
/**
 * Check individual daughter is up in .META.; fixup if its not.
 * @param result The contents of the parent row in .META.
 * @param qualifier Which daughter to check for.
 * @return 1 if the daughter is missing and fixed. Otherwise 0
 * @throws IOException
 */
static int fixupDaughter(final Result result, final byte [] qualifier,
    final AssignmentManager assignmentManager,
    final CatalogTracker catalogTracker)
throws IOException {
  HRegionInfo daughter =
    MetaReader.parseHRegionInfoFromCatalogResult(result, qualifier);
  if (daughter == null) return 0;
  if (isDaughterMissing(catalogTracker, daughter)) {
    LOG.info("Fixup; missing daughter " + daughter.getRegionNameAsString());
    MetaEditor.addDaughter(catalogTracker, daughter, null);

    // TODO: Log WARN if the regiondir does not exist in the fs.  If its not
    // there then something wonky about the split -- things will keep going
    // but could be missing references to parent region.

    // And assign it.
    assignmentManager.assign(daughter, true);
    return 1;
  } else {
    LOG.debug("Daughter " + daughter.getRegionNameAsString() + " present");
  }
  return 0;
}
 

import org.apache.hadoop.hbase.catalog.MetaEditor; //导入方法依赖的package包/类
/**
 * Check individual daughter is up in .META.; fixup if its not.
 * @param result The contents of the parent row in .META. - not used
 * @param daughter Which daughter to check for.
 * @return 1 if the daughter is missing and fixed. Otherwise 0
 * @throws IOException
 */
static int fixupDaughter(final Result result, HRegionInfo daughter,
    final AssignmentManager assignmentManager,
    final CatalogTracker catalogTracker)
throws IOException {
  if (daughter == null) return 0;
  if (isDaughterMissing(catalogTracker, daughter)) {
    LOG.info("Fixup; missing daughter " + daughter.getRegionNameAsString());
    MetaEditor.addDaughter(catalogTracker, daughter, null);

    // TODO: Log WARN if the regiondir does not exist in the fs.  If its not
    // there then something wonky about the split -- things will keep going
    // but could be missing references to parent region.

    // And assign it.
    assignmentManager.assign(daughter, true, true);
    return 1;
  } else {
    LOG.debug("Daughter " + daughter.getRegionNameAsString() + " present");
  }
  return 0;
}
 

import org.apache.hadoop.hbase.catalog.MetaEditor; //导入方法依赖的package包/类
@Override
public void postOpenDeployTasks(final HRegion r, final CatalogTracker ct, final boolean daughter)
    throws KeeperException, IOException {
  checkOpen();
  LOG.info("Post open deploy tasks for region=" + r.getRegionNameAsString() + ", daughter="
      + daughter);
  // Do checks to see if we need to compact (references or too many files)
  for (Store s : r.getStores().values()) {
    if (s.hasReferences() || s.needsCompaction()) {
      getCompactionRequester().requestCompaction(r, s, "Opening Region", null);
    }
  }
  // Update ZK, ROOT or META
  if (r.getRegionInfo().isRootRegion()) {
    RootLocationEditor.setRootLocation(getZooKeeper(), this.serverNameFromMasterPOV);
  } else if (r.getRegionInfo().isMetaRegion()) {
    MetaEditor.updateMetaLocation(ct, r.getRegionInfo(), this.serverNameFromMasterPOV);
  } else {
    if (daughter) {
      // If daughter of a split, update whole row, not just location.
      MetaEditor.addDaughter(ct, r.getRegionInfo(), this.serverNameFromMasterPOV);
    } else {
      MetaEditor.updateRegionLocation(ct, r.getRegionInfo(), this.serverNameFromMasterPOV);
    }
  }
  LOG.info("Done with post open deploy task for region=" + r.getRegionNameAsString()
      + ", daughter=" + daughter);

}
 

import org.apache.hadoop.hbase.catalog.MetaEditor; //导入方法依赖的package包/类
@Override
public void postOpenDeployTasks(final HRegion r, final CatalogTracker ct,
    final boolean daughter)
throws KeeperException, IOException {
  checkOpen();
  LOG.info("Post open deploy tasks for region=" + r.getRegionNameAsString() +
    ", daughter=" + daughter);
  // Do checks to see if we need to compact (references or too many files)
  for (Store s : r.getStores().values()) {
    if (s.hasReferences() || s.needsCompaction()) {
      getCompactionRequester().requestCompaction(r, s, "Opening Region", null);
    }
  }
  // Update ZK, ROOT or META
  if (r.getRegionInfo().isRootRegion()) {
    RootLocationEditor.setRootLocation(getZooKeeper(),
     this.serverNameFromMasterPOV);
  } else if (r.getRegionInfo().isMetaRegion()) {
    MetaEditor.updateMetaLocation(ct, r.getRegionInfo(),
      this.serverNameFromMasterPOV);
  } else {
    if (daughter) {
      // If daughter of a split, update whole row, not just location.
      MetaEditor.addDaughter(ct, r.getRegionInfo(),
        this.serverNameFromMasterPOV);
    } else {
      MetaEditor.updateRegionLocation(ct, r.getRegionInfo(),
        this.serverNameFromMasterPOV);
    }
  }
  LOG.info("Done with post open deploy task for region=" +
    r.getRegionNameAsString() + ", daughter=" + daughter);

}
 

import org.apache.hadoop.hbase.catalog.MetaEditor; //导入方法依赖的package包/类
@Override
public void postOpenDeployTasks(final HRegion r, final CatalogTracker ct,
    final boolean daughter)
throws KeeperException, IOException {
  LOG.info("Post open deploy tasks for region=" + r.getRegionNameAsString() +
    ", daughter=" + daughter);
  // Do checks to see if we need to compact (references or too many files)
  for (Store s : r.getStores().values()) {
    if (s.hasReferences() || s.needsCompaction()) {
      getCompactionRequester().requestCompaction(r, s, "Opening Region");
    }
  }
  // Update ZK, ROOT or META
  if (r.getRegionInfo().isRootRegion()) {
    RootLocationEditor.setRootLocation(getZooKeeper(),
     this.serverNameFromMasterPOV);
  } else if (r.getRegionInfo().isMetaRegion()) {
    MetaEditor.updateMetaLocation(ct, r.getRegionInfo(),
      this.serverNameFromMasterPOV);
  } else {
    if (daughter) {
      // If daughter of a split, update whole row, not just location.
      MetaEditor.addDaughter(ct, r.getRegionInfo(),
        this.serverNameFromMasterPOV);
    } else {
      MetaEditor.updateRegionLocation(ct, r.getRegionInfo(),
        this.serverNameFromMasterPOV);
    }
  }
  LOG.info("Done with post open deploy task for region=" +
    r.getRegionNameAsString() + ", daughter=" + daughter);

}
 

import org.apache.hadoop.hbase.catalog.MetaEditor; //导入方法依赖的package包/类
@Override
public void postOpenDeployTasks(final HRegion r, final CatalogTracker ct,
    final boolean daughter)
throws KeeperException, IOException {
  checkOpen();
  LOG.info("Post open deploy tasks for region=" + r.getRegionNameAsString() +
    ", daughter=" + daughter);
  // Do checks to see if we need to compact (references or too many files)
  for (Store s : r.getStores().values()) {
    if (s.hasReferences() || s.needsCompaction()) {
      getCompactionRequester().requestCompaction(r, s, "Opening Region");
    }
  }
  // Update ZK, ROOT or META
  if (r.getRegionInfo().isRootRegion()) {
    RootRegionTracker.setRootLocation(getZooKeeper(),
     this.serverNameFromMasterPOV);
  } else if (r.getRegionInfo().isMetaRegion()) {
    MetaEditor.updateMetaLocation(ct, r.getRegionInfo(),
      this.serverNameFromMasterPOV);
  } else {
    if (daughter) {
      // If daughter of a split, update whole row, not just location.
      MetaEditor.addDaughter(ct, r.getRegionInfo(),
        this.serverNameFromMasterPOV);
    } else {
      MetaEditor.updateRegionLocation(ct, r.getRegionInfo(),
        this.serverNameFromMasterPOV);
    }
  }
  LOG.info("Done with post open deploy task for region=" +
    r.getRegionNameAsString() + ", daughter=" + daughter);

}
 

import org.apache.hadoop.hbase.catalog.MetaEditor; //导入方法依赖的package包/类
/**
 * Perform time consuming opening of the daughter regions.
 * @param server Hosting server instance.  Can be null when testing (won't try
 * and update in zk if a null server)
 * @param services Used to online/offline regions.
 * @param a first daughter region
 * @param a second daughter region
 * @throws IOException If thrown, transaction failed. Call {@link #rollback(Server, RegionServerServices)}
 */
/* package */void openDaughters(final Server server,
    final RegionServerServices services, HRegion a, HRegion b)
    throws IOException {
  boolean stopped = server != null && server.isStopped();
  boolean stopping = services != null && services.isStopping();
  // TODO: Is this check needed here?
  if (stopped || stopping) {
    // add 2nd daughter first (see HBASE-4335)
    MetaEditor.addDaughter(server.getCatalogTracker(),
        b.getRegionInfo(), null);
    MetaEditor.addDaughter(server.getCatalogTracker(),
        a.getRegionInfo(), null);
    LOG.info("Not opening daughters " +
        b.getRegionInfo().getRegionNameAsString() +
        " and " +
        a.getRegionInfo().getRegionNameAsString() +
        " because stopping=" + stopping + ", stopped=" + stopped);
  } else {
    // Open daughters in parallel.
    DaughterOpener aOpener = new DaughterOpener(server, a);
    DaughterOpener bOpener = new DaughterOpener(server, b);
    aOpener.start();
    bOpener.start();
    try {
      aOpener.join();
      bOpener.join();
    } catch (InterruptedException e) {
      Thread.currentThread().interrupt();
      throw new IOException("Interrupted " + e.getMessage());
    }
    if (aOpener.getException() != null) {
      throw new IOException("Failed " +
        aOpener.getName(), aOpener.getException());
    }
    if (bOpener.getException() != null) {
      throw new IOException("Failed " +
        bOpener.getName(), bOpener.getException());
    }
    if (services != null) {
      try {
        // add 2nd daughter first (see HBASE-4335)
        services.postOpenDeployTasks(b, server.getCatalogTracker(), true);
        // Should add it to OnlineRegions
        services.addToOnlineRegions(b);
        services.postOpenDeployTasks(a, server.getCatalogTracker(), true);
        services.addToOnlineRegions(a);
      } catch (KeeperException ke) {
        throw new IOException(ke);
      }
    }
  }
}