captainzmc commented on a change in pull request #2835:
URL: https://github.com/apache/ozone/pull/2835#discussion_r748445689
##########
File path:
hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/storage/BlockDataStreamOutput.java
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@@ -259,6 +268,19 @@ public void write(ByteBuffer b, int off, int len) throws
IOException {
}
final StreamBuffer buf = new StreamBuffer(b, off, len);
+
+ // Controls the number of buffers on the client.
+ if (futures.size() >= streamWindowSize) {
+ try {
+ futures.poll().get();
Review comment:
Yeah, if it's full, let's wait for the first one to finish, and then
we'll put another buf to the bufferList
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