[ 
https://issues.apache.org/jira/browse/HADOOP-13702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15563114#comment-15563114
 ] 

Xiao Chen commented on HADOOP-13702:
------------------------------------

bq. This follows guidance for System.nanoTime.
Thanks [~chris.douglas] for the good catch!

Also, seems the fix is moved back to HDFS, we should make sure the component is 
consistent with the final change before check-in.
[[email protected]] thanks for revving. Why the new 
{{InstrumentedReadLock}} and {{InstrumentedWriteLock}} can't reuse 
{{InstrumentedLock}}?

> Add a new instrumented read-write lock
> --------------------------------------
>
>                 Key: HADOOP-13702
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13702
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: common
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>         Attachments: HDFS-10924-2.patch, HDFS-10924-3.patch, 
> HDFS-10924-4.patch, HDFS-10924-5.patch, HDFS-10924.patch
>
>
> Add a new instrumented read-write lock in hadoop common, so that the 
> HDFS-9668 can use this to improve the locking in FsDatasetImpl



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to