Exemplo n.º 1
0
 private boolean isPoolRestarted(
     PoolDS ds, PoolPassiveIoFileMessage<org.dcache.chimera.nfs.v4.xdr.stateid4> message) {
   long verifier = message.getVerifier();
   if (verifier != 0) {
     // pool supports verifier
     return ds.getVerifier() != verifier;
   }
   // pre-2.9 pool
   return !Arrays.equals(ds.getInetSocketAddress(), message.socketAddresses());
 }
Exemplo n.º 2
0
  @Override
  public device_addr4 getDeviceInfo(CompoundContext context, deviceid4 deviceId) {
    /* in case of MDS access we return the same interface which client already connected to */
    if (deviceId.equals(MDS_ID)) {
      return deviceAddrOf(
          new RoundRobinStripingPattern<InetSocketAddress[]>(),
          new InetSocketAddress[] {context.getRpcCall().getTransport().getLocalSocketAddress()});
    }

    PoolDS ds = _poolDeviceMap.getByDeviceId(deviceId);
    if (ds == null) {
      return null;
    }
    return ds.getDeviceAddr();
  }
Exemplo n.º 3
0
  /**
   * ask pool manager for a file
   *
   * <p>On successful reply from pool manager corresponding O request will be sent to the pool to
   * start a NFS mover.
   *
   * @throws ChimeraNFSException in case of NFS friendly errors ( like ACCESS )
   * @throws IOException in case of any other errors
   */
  @Override
  public Layout layoutGet(CompoundContext context, Inode nfsInode, int ioMode, stateid4 stateid)
      throws IOException {

    FsInode inode = _fileFileSystemProvider.inodeFromBytes(nfsInode.getFileId());
    CDC cdc = CDC.reset(_cellName, _domainName);
    try {
      NDC.push(inode.toString());
      NDC.push(context.getRpcCall().getTransport().getRemoteSocketAddress().toString());
      deviceid4 deviceid;
      if (inode.type() != FsInodeType.INODE || inode.getLevel() != 0) {
        /*
         * all non regular files ( AKA pnfs dot files ) provided by door itself.
         */
        deviceid = MDS_ID;
      } else {

        final InetSocketAddress remote =
            context.getRpcCall().getTransport().getRemoteSocketAddress();
        final PnfsId pnfsId = new PnfsId(inode.toString());
        final NFS4ProtocolInfo protocolInfo =
            new NFS4ProtocolInfo(remote, new org.dcache.chimera.nfs.v4.xdr.stateid4(stateid));

        Transfer.initSession();
        NfsTransfer transfer = _ioMessages.get(stateid);
        if (transfer == null) {
          transfer =
              new NfsTransfer(_pnfsHandler, context.getRpcCall().getCredential().getSubject());

          transfer.setProtocolInfo(protocolInfo);
          transfer.setCellName(this.getCellName());
          transfer.setDomainName(this.getCellDomainName());
          transfer.setBillingStub(_billingStub);
          transfer.setPoolStub(_poolManagerStub);
          transfer.setPoolManagerStub(_poolManagerStub);
          transfer.setPnfsId(pnfsId);
          transfer.setClientAddress(remote);
          transfer.readNameSpaceEntry();

          _ioMessages.put(stateid, transfer);

          PoolDS ds = getPool(transfer, ioMode);
          deviceid = ds.getDeviceId();
        } else {
          PoolDS ds = transfer.waitForRedirect(NFS_RETRY_PERIOD);
          deviceid = ds.getDeviceId();
        }
      }

      nfs_fh4 fh = new nfs_fh4(nfsInode.toNfsHandle());

      //  -1 is special value, which means entire file
      layout4 layout = Layout.getLayoutSegment(deviceid, fh, ioMode, 0, nfs4_prot.NFS4_UINT64_MAX);

      return new Layout(true, stateid, new layout4[] {layout});

    } catch (FileInCacheException e) {
      cleanStateAndKillMover(stateid);
      throw new ChimeraNFSException(nfsstat.NFSERR_IO, e.getMessage());
    } catch (CacheException e) {
      cleanStateAndKillMover(stateid);
      /*
       * error 243: file is broken on tape.
       * can't do a much. Tell it to client.
       */
      int status =
          e.getRc() == CacheException.BROKEN_ON_TAPE
              ? nfsstat.NFSERR_IO
              : nfsstat.NFSERR_LAYOUTTRYLATER;
      throw new ChimeraNFSException(status, e.getMessage());
    } catch (InterruptedException e) {
      cleanStateAndKillMover(stateid);
      throw new ChimeraNFSException(nfsstat.NFSERR_LAYOUTTRYLATER, e.getMessage());
    } finally {
      cdc.close();
    }
  }