[ 
https://issues.apache.org/jira/browse/HDFS-11182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15763235#comment-15763235
 ] 

ASF GitHub Bot commented on HDFS-11182:
---------------------------------------

Github user xiaoyuyao commented on a diff in the pull request:

    https://github.com/apache/hadoop/pull/168#discussion_r93171107
  
    --- Diff: 
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/checker/DatasetVolumeChecker.java
 ---
    @@ -299,26 +327,35 @@ public void checkVolume(
       private class ResultHandler
           implements FutureCallback<VolumeCheckResult> {
         private final FsVolumeReference reference;
    -    private final Set<StorageLocation> failedVolumes;
    -    private final Set<StorageLocation> healthyVolumes;
    -    private final CountDownLatch latch;
    -    private final AtomicLong numVolumes;
    +    private final Set<FsVolumeSpi> failedVolumes;
    +    private final Set<FsVolumeSpi> healthyVolumes;
    +    private final Semaphore semaphore;
     
         @Nullable
         private final Callback callback;
     
    +    /**
    +     * 
    +     * @param reference FsVolumeReference to be released when the check is
    +     *                  complete.
    +     * @param healthyVolumes set of healthy volumes. If the disk check is
    +     *                       successful, add the volume here.
    +     * @param failedVolumes set of failed volumes. If the disk check fails,
    +     *                      add the volume here.
    +     * @param semaphore semaphore used to trigger callback invocation.
    --- End diff --
    
    Thanks. The new logic looks good to me.


> Update DataNode to use DatasetVolumeChecker
> -------------------------------------------
>
>                 Key: HDFS-11182
>                 URL: https://issues.apache.org/jira/browse/HDFS-11182
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>
> Update DataNode to use the DatasetVolumeChecker class introduced in 
> HDFS-11149 to parallelize disk checks.



--
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