hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Xiaoming Shi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1676) DateFormat.getDateTimeInstance() is very expensive, we can cache it to improve performance
Date Tue, 01 Mar 2011 02:23:36 GMT
DateFormat.getDateTimeInstance() is very expensive, we can cache it to improve performance
------------------------------------------------------------------------------------------

                 Key: HDFS-1676
                 URL: https://issues.apache.org/jira/browse/HDFS-1676
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: balancer
    Affects Versions: 0.21.0
            Reporter: Xiaoming Shi


In the file:

./hadoop-0.21.0/hdfs/src/java/org/apache/hadoop/hdfs/server/balancer/Balancer.java  line:1520

In the while loop, DateFormat.getDateTimeInstance()is called in each iteration. We can cache
the result by moving it outside the loop or adding a class member.

This is similar to the Apache bug https://issues.apache.org/bugzilla/show_bug.cgi?id=48778



-- 
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message