Fangmin Lv created ZOOKEEPER-2870:

             Summary: Improve the efficiency of AtomicFileOutputStream
                 Key: ZOOKEEPER-2870
             Project: ZooKeeper
          Issue Type: Improvement
          Components: server
    Affects Versions: 3.5.3, 3.4.10, 3.6.0
            Reporter: Fangmin Lv
            Assignee: Fangmin Lv

The AtomicFileOutputStream extends from FilterOutputStream, where the write 
function writes data to underlying stream byte by byte:, which is very inefficient. 

Currently, we only this this class to write the dynamic config, because it's 
quite small it won't be a big problem. But in the future we may want to use 
this class to write the snapshot file, which will take much longer time, tested 
inside, writing 600MB snapshot will take more than 10 minutes, while using 
FileOutputStream directly only takes 6s.

This message was sent by Atlassian JIRA

Reply via email to