BewareMyPower commented on code in PR #16943:
URL: https://github.com/apache/pulsar/pull/16943#discussion_r950028292
##########
pulsar-client-cpp/tests/ConsumerTest.cc:
##########
@@ -763,4 +763,36 @@ TEST(ConsumerTest, testPartitionsWithCloseUnblock) {
thread.join();
}
+TEST(ConsumerTest, testGetLastMessageIdBlockWhenConnectionDisconnected) {
+ int operationTimeout = 10;
Review Comment:
10 seconds might be too long for a single test, maybe you can reduce it to 5
seconds (just a suggestion).
##########
pulsar-client-cpp/lib/ConsumerImpl.cc:
##########
@@ -1326,8 +1336,26 @@ void
ConsumerImpl::getLastMessageIdAsync(BrokerGetLastMessageIdCallback callback
callback(ResultUnsupportedVersionError, MessageId());
}
} else {
- LOG_ERROR(getName() << " Client Connection not ready for Consumer");
- callback(ResultNotConnected, MessageId());
+ TimeDuration next = std::min(remainTime, backoff->next());
+ if (next.total_milliseconds() <= 0) {
+ LOG_ERROR(getName() << " Client Connection not ready for
Consumer");
+ callback(ResultNotConnected, MessageId());
+ return;
+ }
+ remainTime -= next;
+
+ timer->expires_from_now(next);
+
+ timer->async_wait([this, backoff, remainTime, timer, next,
+ callback](const boost::system::error_code& ec) ->
void {
+ if (ec) {
+ LOG_DEBUG(getName() << " Get last message id operation was
cancelled, code[" << ec << "].");
+ return;
+ }
Review Comment:
`if (ec)` (in short for `if (ec != 0)`) doesn't always mean the operation is
cancelled. See how we process the error code in
https://github.com/apache/pulsar/blob/3ecf34abf99afd7c53a681ab82d5bcec2bc499a1/pulsar-client-cpp/lib/ClientConnection.cc#L594-L598
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