[jira] Updated: (CASSANDRA-627) use FastDateFormat instead of SimpleDateFormat

["gabriele renzi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

gabriele renzi updated CASSANDRA-627:
-------------------------------------

    Attachment: CASSANDRA-627-1.patch

uses thread safe shared FastDateFormat instance instead of a new  SimpleDateFormat  instance for each call in LogUtil.getTimestamp()

> use FastDateFormat instead of SimpleDateFormat 
> -----------------------------------------------
>
>                 Key: CASSANDRA-627
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-627
>             Project: Cassandra
>          Issue Type: Improvement
>         Environment: all
>            Reporter: gabriele renzi
>            Priority: Minor
>         Attachments: CASSANDRA-627-1.patch
>
>   Original Estimate: 0.17h
>  Remaining Estimate: 0.17h
>
> FastDateFormat is thread safe and can be shared by different instances so we can avoid the overhead of recreating it every time. 
> As in LogUtil we only rely on it for formatting it is a good fit. 
> The usage in Circuit is already protected by a lock so probably no real need for this change.

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