hf200012 opened a new issue #5663:
URL: https://github.com/apache/incubator-doris/issues/5663


   After the doris-0.14.7 stream load task runs for two or three days, there is 
a large backlog of tasks, which can’t be ended.
   Some users also encountered this problem in 0.13
   
   The current phenomenon is that it is stuck in close_wait, and there is a 
problem with the timeout mechanism.
   The timeout time of tablet_add_batch rpc each time is the timeout time of 
stream load, that is, the timeout time of each batch is the timeout time of 
stream load, which may be very large when added together.
   Since libevent's http is not good for multi-threading support, an http 
request is stuck, and the http request of this be, if it hits the same libevent 
http event_base, it will also be stuck
   
   I have this problem three times


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