Package org.apache.hadoop.hdfs.server.namenode.LeaseManager

Examples of org.apache.hadoop.hdfs.server.namenode.LeaseManager.Lease

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      }
      pendingFile.setTargets(targets);
    }
    // start lease recovery of the last block for this file.
    pendingFile.assignPrimaryDatanode();
    Lease reassignedLease = reassignLease(
      lease, src, HdfsConstants.NN_RECOVERY_LEASEHOLDER, pendingFile
    );
    getEditLog().logOpenFile(src, pendingFile);
    leaseManager.renewLease(reassignedLease);
    return false;  // Have the client retry lease recovery.
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      LightWeightLinkedSet<Lease> sortedLeases = leaseManager.getSortedLeases();
      Iterator<Lease> itr = sortedLeases.iterator();
      while (itr.hasNext()) {
        ctx.checkCancelled();
        Lease lease = itr.next();
        for (String path : lease.getPaths()) {
          // verify that path exists in namespace
          INode node = dir.getFileINode(path);
          if (node == null) {
            throw new IOException("saveLeases found path " + path +
              " but no matching entry in namespace.");
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      INodeFileUnderConstruction pendingFile = (INodeFileUnderConstruction) fileInode;
      //
      // If the file is under construction , then it must be in our
      // leases. Find the appropriate lease record.
      //
      Lease lease = leaseManager.getLease(holder);
      //
      // We found the lease for this file. And surprisingly the original
      // holder is trying to recreate this file. This should never occur.
      //
      if (!force && lease != null) {
        Lease leaseFile = leaseManager.getLeaseByPath(src);
        if ((leaseFile != null && leaseFile.equals(lease)) ||
            lease.getHolder().equals(holder)) {
          throw new AlreadyBeingCreatedException(
            "failed to create file " + src + " for " + holder +
            " on client " + clientMachine +
            " because current leaseholder is trying to recreate file.");
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  private void checkLease(String src, String holder, INode file)
      throws LeaseExpiredException {
    assert hasReadOrWriteLock();
    if (file == null || file.isDirectory()) {
      Lease lease = leaseManager.getLease(holder);
      throw new LeaseExpiredException("No lease on " + src +
                                      " File does not exist. " +
                                      (lease != null ? lease.toString() :
                                       "Holder " + holder +
                                       " does not have any open files."));
    }
    if (!file.isUnderConstruction()) {
      Lease lease = leaseManager.getLease(holder);
      throw new LeaseExpiredException("No lease on " + src +
                                      " File is not open for writing. " +
                                      (lease != null ? lease.toString() :
                                       "Holder " + holder +
                                       " does not have any open files."));
    }
    INodeFileUnderConstruction pendingFile = (INodeFileUnderConstruction)file;
    if (holder != null && !pendingFile.getClientName().equals(holder)) {
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    getLeaseManager(namesystem).setLeasePeriod(soft, hard);
    namesystem.leaseManager.triggerMonitorCheckNow();
  }

  public static String getLeaseHolderForPath(NameNode namenode, String path) {
    Lease l = namenode.getNamesystem().leaseManager.getLeaseByPath(path);
    return l == null? null: l.getHolder();
  }
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   * @return the timestamp of the last renewal of the given lease,
   *   or -1 in the case that the lease doesn't exist.
   */
  public static long getLeaseRenewalTime(NameNode nn, String path) {
    LeaseManager lm = nn.getNamesystem().leaseManager;
    Lease l = lm.getLeaseByPath(path);
    if (l == null) {
      return -1;
    }
    return l.getLastUpdate();
  }
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      INodeFileUnderConstruction pendingFile = (INodeFileUnderConstruction) fileInode;
      //
      // If the file is under construction , then it must be in our
      // leases. Find the appropriate lease record.
      //
      Lease lease = leaseManager.getLease(holder);
      //
      // We found the lease for this file. And surprisingly the original
      // holder is trying to recreate this file. This should never occur.
      //
      if (!force && lease != null) {
        Lease leaseFile = leaseManager.getLeaseByPath(src);
        if (leaseFile != null && leaseFile.equals(lease)) {
          throw new AlreadyBeingCreatedException(
                    "failed to create file " + src + " for " + holder +
                    " on client " + clientMachine +
                    " because current leaseholder is trying to recreate file.");
        }
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  private void checkLease(String src, String holder, INode file)
                                                     throws IOException {

    if (file == null || file.isDirectory()) {
      Lease lease = leaseManager.getLease(holder);
      throw new LeaseExpiredException("No lease on " + src +
                                      " File does not exist. " +
                                      (lease != null ? lease.toString() :
                                       "Holder " + holder +
                                       " does not have any open files."));
    }
    if (!file.isUnderConstruction()) {
      Lease lease = leaseManager.getLease(holder);
      throw new LeaseExpiredException("No lease on " + src +
                                      " File is not open for writing. " +
                                      (lease != null ? lease.toString() :
                                       "Holder " + holder +
                                       " does not have any open files."));
    }
    INodeFileUnderConstruction pendingFile = (INodeFileUnderConstruction)file;
    if (holder != null && !pendingFile.getClientName().equals(holder)) {
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      }
      pendingFile.setTargets(targets);
    }
    // start lease recovery of the last block for this file.
    pendingFile.assignPrimaryDatanode();
    Lease reassignedLease = reassignLease(
      lease, src, HdfsConstants.NN_RECOVERY_LEASEHOLDER, pendingFile);
    leaseManager.renewLease(reassignedLease);
  }
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    getLeaseManager(namesystem).setLeasePeriod(soft, hard);
    namesystem.leaseManager.triggerMonitorCheckNow();
  }

  public static String getLeaseHolderForPath(NameNode namenode, String path) {
    Lease l = namenode.getNamesystem().leaseManager.getLeaseByPath(path);
    return l == null? null: l.getHolder();
  }
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Related Classes of org.apache.hadoop.hdfs.server.namenode.LeaseManager.Lease

  • org.apache.hadoop.hdfs.server.namenode.FSDirectory
  • org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader
  • org.apache.hadoop.hdfs.server.namenode.FSNamesystem
  • org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter
  • org.apache.hadoop.hdfs.server.namenode.TestFSImage
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