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The following commit(s) were added to refs/heads/master by this push:
     new af75f77  empty subcribed topic is allowed to start (#969)
af75f77 is described below

commit af75f77227b046c5d0482f8b71617267f11212d8
Author: Kay Du <kay.du0...@gmail.com>
AuthorDate: Fri Apr 28 10:31:20 2023 +0800

    empty subcribed topic is allowed to start (#969)
    
    Co-authored-by: 筱瑜 <maoyu....@alibaba-inc.com>
---
 consumer/push_consumer.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/consumer/push_consumer.go b/consumer/push_consumer.go
index 531a5b6..d8706b0 100644
--- a/consumer/push_consumer.go
+++ b/consumer/push_consumer.go
@@ -540,7 +540,9 @@ func (pc *pushConsumer) validate() error {
        }
 
        if len(pc.subscribedTopic) == 0 {
-               return errors.New("number of subscribed topics is 0.")
+               rlog.Warning("not subscribe any topic yet", 
map[string]interface{}{
+                       rlog.LogKeyConsumerGroup: pc.consumerGroup,
+               })
        }
 
        if pc.option.ConsumeConcurrentlyMaxSpan < 1 || 
pc.option.ConsumeConcurrentlyMaxSpan > 65535 {

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