Package org.apache.flink.runtime.io.network

Examples of org.apache.flink.runtime.io.network.Buffer

311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
    final int sequenceNumber = envelope.getSequenceNumber();

    synchronized (this.queuedEnvelopes) {

      if (this.destroyCalled) {
        final Buffer buffer = envelope.getBuffer();
        if (buffer != null) {
          buffer.recycleBuffer();
        }
        return;
      }

      final int expectedSequenceNumber = this.lastReceivedEnvelope + 1;
      if (sequenceNumber != expectedSequenceNumber) {
        // This is a problem, now we are actually missing some data
        reportIOException(new IOException("Expected data packet " + expectedSequenceNumber + " but received " + sequenceNumber));

        // notify that something (an exception) is available
        notifyGateThatInputIsAvailable();

        if (LOG.isErrorEnabled()) {
          LOG.error("Input channel " + this.toString() + " expected envelope " + expectedSequenceNumber
              + " but received " + sequenceNumber);
        }

        // rescue the buffer
        final Buffer buffer = envelope.getBuffer();
        if (buffer != null) {
          buffer.recycleBuffer();
        }
      } else {

        this.queuedEnvelopes.add(envelope);
        this.lastReceivedEnvelope = sequenceNumber;
View Full Code Here
389
390
391
392
393
394
395
396
397
398
399
      final Iterator<Envelope> it = this.queuedEnvelopes.iterator();
      while (it.hasNext()) {

        final Envelope envelope = it.next();
        ++numberOfQueuedEnvelopes;
        final Buffer buffer = envelope.getBuffer();
        if (buffer == null) {
          continue;
        }

        ++numberOfQueuedEnvelopesWithMemoryBuffers;
View Full Code Here
79
80
81
82
83
84
85
86
87
88
89
      // serialize with corresponding serializer and send full buffer
      RecordSerializer<T> serializer = this.serializers[targetChannel];

      RecordSerializer.SerializationResult result = serializer.addRecord(record);
      while (result.isFullBuffer()) {
        Buffer buffer = serializer.getCurrentBuffer();
        if (buffer != null) {
          sendBuffer(buffer, targetChannel);
        }

        buffer = this.bufferPool.requestBufferBlocking(this.bufferPool.getBufferSize());
View Full Code Here
94
95
96
97
98
99
100
101
102
103
104
  public void flush() throws IOException, InterruptedException {
    for (int targetChannel = 0; targetChannel < this.numChannels; targetChannel++) {
      RecordSerializer<T> serializer = this.serializers[targetChannel];

      Buffer buffer = serializer.getCurrentBuffer();
      if (buffer != null) {
        sendBuffer(buffer, targetChannel);
      }

      serializer.clear();
View Full Code Here
108
109
110
111
112
113
114
115
116
117
118
  @Override
  public void broadcastEvent(AbstractEvent event) throws IOException, InterruptedException {
    for (int targetChannel = 0; targetChannel < this.numChannels; targetChannel++) {
      RecordSerializer<T> serializer = this.serializers[targetChannel];

      Buffer buffer = serializer.getCurrentBuffer();
      if (buffer == null) {
        super.sendEvent(event, targetChannel);
      } else {
        super.sendBufferAndEvent(buffer, event, targetChannel);
View Full Code Here
125
126
127
128
129
130
131
132
133
134
135
  @Override
  public void sendEndOfSuperstep() throws IOException, InterruptedException {
    for (int targetChannel = 0; targetChannel < this.numChannels; targetChannel++) {
      RecordSerializer<T> serializer = this.serializers[targetChannel];

      Buffer buffer = serializer.getCurrentBuffer();
      if (buffer == null) {
        super.sendEvent(EndOfSuperstepEvent.INSTANCE, targetChannel);
      } else {
        super.sendBufferAndEvent(buffer, EndOfSuperstepEvent.INSTANCE, targetChannel);
View Full Code Here
140
141
142
143
144
145
146
147
148
149
150
151
  }
 
  public void clearBuffers() {
    if (this.serializers != null) {
      for (RecordSerializer<?> s: this.serializers) {
        Buffer b = s.getCurrentBuffer();
        if (b != null) {
          b.recycleBuffer();
        }
      }
    }
  }
View Full Code Here
77
78
79
80
81
82
83
84
85
86
87
88
89
    // --------------------------------------------------------------------
    // (3) buffer (var length)
    // --------------------------------------------------------------------
    if (env.getBuffer() != null) {
      Buffer envBuffer = env.getBuffer();
      out.writeBytes(envBuffer.getMemorySegment().wrap(0, envBuffer.size()));

      // Recycle the buffer from OUR buffer pool after everything has been
      // copied to Nettys buffer space.
      envBuffer.recycleBuffer();
    }
  }
View Full Code Here
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
    // --------------------------------------------------------------------
    // (a) request a buffer from OUR pool
    if (this.currentBufferRequestSize > 0) {
      JobID jobId = this.currentEnvelope.getJobID();
      ChannelID sourceId = this.currentEnvelope.getSource();
      Buffer buffer = requestBufferForTarget(jobId, sourceId, this.currentBufferRequestSize);

      if (buffer == null) {
        return DecoderState.NO_BUFFER_AVAILABLE;
      }
      else {
        this.currentEnvelope.setBuffer(buffer);
        this.currentDataBuffer = buffer.getMemorySegment().wrap(0, this.currentBufferRequestSize);
        this.currentBufferRequestSize = 0;
      }
    }

    // (b) copy data to OUR buffer
View Full Code Here
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
   * This task should be executed by the IO thread to ensure safe access to the staged buffer.
   */
  private class BufferAvailabilityChangedTask implements Runnable {
    @Override
    public void run() {
      Buffer availableBuffer = bufferBroker.poll();
      if (availableBuffer == null) {
        throw new IllegalStateException("The BufferAvailabilityChangedTask" +
            "should only be executed when a Buffer has been offered" +
            "to the Buffer broker (after becoming available).");
      }

      // This alters the state of the last `decodeEnvelope(ByteBuf)`
      // call to set the buffer, which has become available again
      availableBuffer.limitSize(currentBufferRequestSize);
      currentEnvelope.setBuffer(availableBuffer);
      currentDataBuffer = availableBuffer.getMemorySegment().wrap(0, InboundEnvelopeDecoder.this.currentBufferRequestSize);
      currentBufferRequestSize = 0;

      stagedBuffer.release();

      try {
        if (decodeBuffer(stagedBuffer, channelHandlerContext)) {
          stagedBuffer = null;
          channelHandlerContext.channel().config().setAutoRead(true);
          if (LOG.isDebugEnabled()) {
            LOG.debug(String.format("Set channel %s auto read to true.", channelHandlerContext.channel()));
          }
        }
      } catch (IOException e) {
        availableBuffer.recycleBuffer();
      }
    }
View Full Code Here
TOP

Related Classes of org.apache.flink.runtime.io.network.Buffer

  • org.apache.flink.runtime.io.network.api.RecordWriter
  • org.apache.flink.runtime.io.network.bufferprovider.LocalBufferPool
  • org.apache.flink.runtime.io.network.bufferprovider.LocalBufferPoolTest
  • org.apache.flink.runtime.io.network.bufferprovider.LocalBufferPoolTest$RecyclingBufferAvailableAnswer
  • org.apache.flink.runtime.io.network.channels.InputChannel
  • org.apache.flink.runtime.io.network.netty.InboundEnvelopeDecoder
  • org.apache.flink.runtime.io.network.netty.InboundEnvelopeDecoder$BufferAvailabilityChangedTask
  • org.apache.flink.runtime.io.network.netty.InboundEnvelopeDecoderTest
  • org.apache.flink.runtime.io.network.netty.InboundEnvelopeDecoderTest$RandomBufferRequestAnswer
  • org.apache.flink.runtime.io.network.netty.OutboundEnvelopeEncoder
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.