Examples of WccData

org.apache.hadoop.nfs.nfs3.response.WccData
WccData saved information used by client for weak cache consistency

Examples of org.apache.hadoop.nfs.nfs3.response.WccData


        if (LOG.isDebugEnabled()) {
          LOG.debug("UNSTABLE write request, send response for offset: "
              + writeCtx.getOffset());
        }
        WccData fileWcc = new WccData(preOpAttr, latestAttr);
        WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3_OK,
            fileWcc, count, stableHow, Nfs3Constant.WRITE_COMMIT_VERF);
        Nfs3Utils
            .writeChannel(channel, response.writeHeaderAndResponse(new XDR(),
                xid, new VerifierNone()), xid);

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Examples of org.apache.hadoop.nfs.nfs3.response.WccData

    if (latestAttr.getSize() != offset) {
      LOG.error("After sync, the expect file size: " + offset
          + ", however actual file size is: " + latestAttr.getSize());
      status = Nfs3Status.NFS3ERR_IO;
    }
    WccData wccData = new WccData(Nfs3Utils.getWccAttr(latestAttr), latestAttr);


    // Send response for the ready commits
    while (entry != null && entry.getValue().offset <= flushedOffset) {
      pendingCommits.remove(entry.getKey());
      CommitCtx commit = entry.getValue();

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Examples of org.apache.hadoop.nfs.nfs3.response.WccData

            throw e;
          }
        }
        
        WccAttr preOpAttr = latestAttr.getWccAttr();
        WccData fileWcc = new WccData(preOpAttr, latestAttr);
        if (writeCtx.getOriginalCount() != WriteCtx.INVALID_ORIGINAL_COUNT) {
          LOG.warn("Return original count:" + writeCtx.getOriginalCount()
              + " instead of real data count:" + count);
          count = writeCtx.getOriginalCount();
        }

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Examples of org.apache.hadoop.nfs.nfs3.response.WccData

      LOG.info("Fail pending write: (" + key.getMin() + "," + key.getMax()
          + "), nextOffset=" + nextOffset.get());
      
      WriteCtx writeCtx = pendingWrites.remove(key);
      if (!writeCtx.getReplied()) {
        WccData fileWcc = new WccData(preOpAttr, latestAttr);
        WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3ERR_IO,
            fileWcc, 0, writeCtx.getStableHow(), Nfs3Constant.WRITE_COMMIT_VERF);
        Nfs3Utils.writeChannel(writeCtx.getChannel(), response
            .writeHeaderAndResponse(new XDR(), writeCtx.getXid(),
                new VerifierNone()), writeCtx.getXid());

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Examples of org.apache.hadoop.nfs.nfs3.response.WccData

  // TODO: maybe not efficient
  public static WccData createWccData(final WccAttr preOpAttr,
      DFSClient dfsClient, final String fileIdPath, final IdUserGroup iug)
      throws IOException {
    Nfs3FileAttributes postOpDirAttr = getFileAttr(dfsClient, fileIdPath, iug);
    return new WccData(preOpAttr, postOpDirAttr);
  }

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Examples of org.apache.hadoop.nfs.nfs3.response.WccData

      } catch (IOException e) {
        LOG.error("Can't apapend to file:" + fileIdPath, e);
        if (fos != null) {
          fos.close();
        }
        WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr),
            preOpAttr);
        WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3ERR_IO,
            fileWcc, count, request.getStableHow(),
            Nfs3Constant.WRITE_COMMIT_VERF);
        Nfs3Utils.writeChannel(channel, response.writeHeaderAndResponse(
            new XDR(), xid, new VerifierNone()), xid);
        return;
      }


      // Add open stream
      String writeDumpDir = config.get(NfsConfigKeys.DFS_NFS_FILE_DUMP_DIR_KEY,
          NfsConfigKeys.DFS_NFS_FILE_DUMP_DIR_DEFAULT);
      openFileCtx = new OpenFileCtx(fos, latestAttr, writeDumpDir + "/"
          + fileHandle.getFileId(), dfsClient, iug, aixCompatMode);


      if (!addOpenFileStream(fileHandle, openFileCtx)) {
        LOG.info("Can't add new stream. Close it. Tell client to retry.");
        try {
          fos.close();
        } catch (IOException e) {
          LOG.error("Can't close stream for fileId:" + handle.getFileId(), e);
        }
        // Notify client to retry
        WccData fileWcc = new WccData(latestAttr.getWccAttr(), latestAttr);
        WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3ERR_JUKEBOX,
            fileWcc, 0, request.getStableHow(), Nfs3Constant.WRITE_COMMIT_VERF);
        Nfs3Utils.writeChannel(channel,
            response.writeHeaderAndResponse(new XDR(), xid, new VerifierNone()),
            xid);

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Examples of org.apache.hadoop.nfs.nfs3.response.WccData

      String fileIdPath = Nfs3Utils.getFileIdPath(preOpAttr.getFileId());
      postOpAttr = Nfs3Utils.getFileAttr(dfsClient, fileIdPath, iug);
    } catch (IOException e1) {
      LOG.info("Can't get postOpAttr for fileId: " + preOpAttr.getFileId(), e1);
    }
    WccData fileWcc = new WccData(Nfs3Utils.getWccAttr(preOpAttr), postOpAttr);
    COMMIT3Response response = new COMMIT3Response(status, fileWcc,
        Nfs3Constant.WRITE_COMMIT_VERF);
    Nfs3Utils.writeChannelCommit(channel,
        response.writeHeaderAndResponse(new XDR(), xid, new VerifierNone()),
        xid);

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Examples of org.apache.hadoop.nfs.nfs3.response.WccData

      IdUserGroup iug) {
    
    if (!activeState) {
      LOG.info("OpenFileCtx is inactive, fileId:"
          + request.getHandle().getFileId());
      WccData fileWcc = new WccData(latestAttr.getWccAttr(), latestAttr);
      WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3ERR_IO,
          fileWcc, 0, request.getStableHow(), Nfs3Constant.WRITE_COMMIT_VERF);
      Nfs3Utils.writeChannel(channel,
          response.writeHeaderAndResponse(new XDR(), xid, new VerifierNone()),
          xid);
    } else {
      // Update the write time first
      updateLastAccessTime();
      
      // Handle repeated write requests (same xid or not).
      // If already replied, send reply again. If not replied, drop the
      // repeated request.
      WriteCtx existantWriteCtx = checkRepeatedWriteRequest(request, channel,
          xid);
      if (existantWriteCtx != null) {
        if (!existantWriteCtx.getReplied()) {
          if (LOG.isDebugEnabled()) {
            LOG.debug("Repeated write request which hasn't be served: xid="
                + xid + ", drop it.");
          }
        } else {
          if (LOG.isDebugEnabled()) {
            LOG.debug("Repeated write request which is already served: xid="
                + xid + ", resend response.");
          }
          WccData fileWcc = new WccData(latestAttr.getWccAttr(), latestAttr);
          WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3_OK,
              fileWcc, request.getCount(), request.getStableHow(),
              Nfs3Constant.WRITE_COMMIT_VERF);
          Nfs3Utils.writeChannel(channel, response.writeHeaderAndResponse(
              new XDR(), xid, new VerifierNone()), xid);

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Examples of org.apache.hadoop.nfs.nfs3.response.WccData

  }
  
  /** Process an overwrite write request */
  private void processOverWrite(DFSClient dfsClient, WRITE3Request request,
      Channel channel, int xid, IdUserGroup iug) {
    WccData wccData = new WccData(latestAttr.getWccAttr(), null);
    long offset = request.getOffset();
    int count = request.getCount();
    WriteStableHow stableHow = request.getStableHow();
    WRITE3Response response;
    long cachedOffset = nextOffset.get();

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Examples of org.apache.hadoop.nfs.nfs3.response.WccData

        if (request.getStableHow() == WriteStableHow.UNSTABLE) {
          if (LOG.isDebugEnabled()) {
            LOG.debug("UNSTABLE write request, send response for offset: "
                + writeCtx.getOffset());
          }
          WccData fileWcc = new WccData(preOpAttr, latestAttr);
          WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3_OK,
              fileWcc, count, stableHow, Nfs3Constant.WRITE_COMMIT_VERF);
          Nfs3Utils
              .writeChannel(channel, response.writeHeaderAndResponse(new XDR(),
                  xid, new VerifierNone()), xid);

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