greatsharp commented on code in PR #3077:
URL: https://github.com/apache/kvrocks/pull/3077#discussion_r2362125363


##########
src/cluster/batch_sender.cc:
##########
@@ -100,7 +100,7 @@ Status BatchSender::sendApplyBatchCmd(int fd, const 
rocksdb::WriteBatch &write_b
 
   GET_OR_RET(util::SockSend(fd, redis::ArrayOfBulkStrings({"APPLYBATCH", 
write_batch.Data()})));
 
-  std::string line = GET_OR_RET(util::SockReadLine(fd));
+  std::string line = GET_OR_RET(util::SockReadLineWithRetry(fd, 10, 500));

Review Comment:
   @git-hulk @PragmaTwice @zhixinwen 
   I still used util::SockReadLineWithRetry(fd, 10, 500) to resolve this 
'Resource temporarily unavailable' error, it works well in big data cluster 
migration, but how could a blocking socket report EAGAIN or EWOULDBLOCK error?
   
   Could you please give me some guide?



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