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retries:Remove early commit for transparent retries with none remaining. (#10066) 

* retries:Remove early commit for transparent retries when no retries or no hedging remain.

Fixes #10011
This commit is contained in:
Larry Safran 2023-04-19 13:42:59 -07:00 committed by GitHub
parent b43ddc2886
commit 7255c8dfa8
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2 changed files with 3 additions and 17 deletions
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16
core/src/main/java/io/grpc/internal/RetriableStream.java
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@ -932,29 +932,15 @@ abstract class RetriableStream<ReqT> implements ClientStream {
return;
}
if (isHedging) {
boolean commit = false;
synchronized (lock) {
// Although this operation is not done atomically with
// noMoreTransparentRetry.compareAndSet(false, true), it does not change the size() of
// activeHedges, so neither does it affect the commitment decision of other threads,
// nor do the commitment decision making threads affect itself.
state = state.replaceActiveHedge(substream, newSubstream);
// optimization for early commit
if (!hasPotentialHedging(state)
&& state.activeHedges.size() == 1) {
commit = true;
}
}
if (commit) {
commitAndRun(newSubstream);
}
} else {
if (retryPolicy == null || retryPolicy.maxAttempts == 1) {
// optimization for early commit
commitAndRun(newSubstream);
}
}
callExecutor.execute(new Runnable() {
@Override
public void run() {

4
core/src/test/java/io/grpc/internal/RetriableStreamTest.java
View File

@ -1971,7 +1971,7 @@ public class RetriableStreamTest {
}
@Test
public void noRetry_transparentRetry_earlyCommit() {
public void noRetry_transparentRetry_noEarlyCommit() {
ClientStream mockStream1 = mock(ClientStream.class);
ClientStream mockStream2 = mock(ClientStream.class);
InOrder inOrder = inOrder(retriableStreamRecorder, mockStream1, mockStream2);
@ -1999,7 +1999,7 @@ public class RetriableStreamTest {
inOrder.verify(retriableStreamRecorder).newSubstream(0);
ArgumentCaptor<ClientStreamListener> sublistenerCaptor2 =
ArgumentCaptor.forClass(ClientStreamListener.class);
inOrder.verify(retriableStreamRecorder).postCommit();
verify(retriableStreamRecorder, never()).postCommit();
inOrder.verify(mockStream2).start(sublistenerCaptor2.capture());
inOrder.verify(mockStream2).isReady();
inOrder.verifyNoMoreInteractions();