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https://issues.apache.org/jira/browse/FLINK-8581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16642757#comment-16642757
]
ASF GitHub Bot commented on FLINK-8581:
---------------------------------------
zhijiangW commented on a change in pull request #6698: [FLINK-8581][network]
Move flushing remote subpartitions from OutputFlusher to netty
URL: https://github.com/apache/flink/pull/6698#discussion_r223553034
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/netty/PartitionRequestQueue.java
##########
@@ -354,4 +404,64 @@ public void operationComplete(ChannelFuture future)
throws Exception {
}
}
}
+
+ private static class RegisterPeriodicFlushEvent {
+ private final NetworkSequenceViewReader reader;
+ private final long flushTimeout;
+
+ public RegisterPeriodicFlushEvent(NetworkSequenceViewReader
reader, long flushTimeout) {
+ this.reader = checkNotNull(reader);
+ this.flushTimeout = flushTimeout;
+ }
+
+ public NetworkSequenceViewReader getReader() {
+ return reader;
+ }
+
+ public long getFlushTimeout() {
+ return flushTimeout;
+ }
+ }
+
+ private static class PeriodicFlushes {
+ private final Map<Long, List<NetworkSequenceViewReader>>
periodicFlushes = new HashMap<>();
+ private final Map<NetworkSequenceViewReader, Long>
flushTimeouts = new HashMap<>();
+ private final Map<Long, ScheduledFuture<?>> scheduledEvents =
new HashMap<>();
+
+ public void register(ChannelHandlerContext ctx, long
flushTimeout, NetworkSequenceViewReader reader) {
+ checkState(!flushTimeouts.containsKey(reader));
+ checkState(flushTimeout > 0);
Review comment:
If we check the `flushTimeout` at the beginning in `ResultPartition` stack
as mentioned above, we need not care about it in the following processes.
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> Improve performance for low latency network
> -------------------------------------------
>
> Key: FLINK-8581
> URL: https://issues.apache.org/jira/browse/FLINK-8581
> Project: Flink
> Issue Type: Improvement
> Components: Network
> Affects Versions: 1.5.0
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
> Priority: Major
> Labels: pull-request-available
>
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