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ASF GitHub Bot commented on FLINK-7456: --------------------------------------- Github user NicoK commented on a diff in the pull request: https://github.com/apache/flink/pull/4552#discussion_r157760560 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/netty/PartitionRequestClientHandler.java --- @@ -158,32 +164,44 @@ public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws E @Override public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { try { - if (!bufferListener.hasStagedBufferOrEvent() && stagedMessages.isEmpty()) { - decodeMsg(msg, false); - } - else { - stagedMessages.add(msg); - } - } - catch (Throwable t) { + decodeMsg(msg); + } catch (Throwable t) { notifyAllChannelsOfErrorAndClose(t); } } + @Override + public void userEventTriggered(ChannelHandlerContext ctx, Object msg) throws Exception { + if (msg instanceof RemoteInputChannel) { + boolean triggerWrite = inputChannelsWithCredit.isEmpty(); --- End diff -- please re-add the comment here, too > Implement Netty sender incoming pipeline for credit-based > --------------------------------------------------------- > > Key: FLINK-7456 > URL: https://issues.apache.org/jira/browse/FLINK-7456 > Project: Flink > Issue Type: Sub-task > Components: Network > Reporter: zhijiang > Assignee: zhijiang > Fix For: 1.5.0 > > > This is a part of work for credit-based network flow control. > On sender side, each subpartition view maintains an atomic integer > {{currentCredit}} from receiver. Once receiving the messages of > {{PartitionRequest}} and {{AddCredit}}, the {{currentCredit}} is added by > deltas. > Each view also maintains an atomic boolean field to mark it as registered > available for transfer to make sure it is enqueued in handler only once. If > the {{currentCredit}} increases from zero and there are available buffers in > the subpartition, the corresponding view will be enqueued for transferring > data. -- This message was sent by Atlassian JIRA (v6.4.14#64029)