hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Xiao Kang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6662) hadoop zlib compression does not fully utilize the buffer
Date Mon, 29 Mar 2010 07:59:27 GMT
hadoop zlib compression does not fully utilize the buffer
---------------------------------------------------------

                 Key: HADOOP-6662
                 URL: https://issues.apache.org/jira/browse/HADOOP-6662
             Project: Hadoop Common
          Issue Type: Improvement
          Components: io
    Affects Versions: 0.20.2
            Reporter: Xiao Kang


org.apache.hadoop.io.compress.ZlibCompressonr does not fully utilize its buffer. 

Its needesInput() return false when there is any data in its buffer (64K by default). The
performance will greately degrade since an JNI call will be invoded at each time the write()
method of CompressonStream is called. 

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message