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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11779) Ozone: KSM: add listBuckets
Date Fri, 26 May 2017 03:58:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16025774#comment-16025774
] 

Weiwei Yang commented on HDFS-11779:
------------------------------------

Hi [~linyiqun]

Thank you for reviewing the patch, looking forward for more comments if you have. Thanks.

bq. Can you use numBuckets to replace the parameter count?

Fixed.

bq. It seems we don't need to print test directory here, right?

Correct, removed that line.

bq. Can you add more detailed error info when we found the volume bucket is null.

I don't think this is an error here. The KSM database stores not only bucket key (with schema
/volume_name/bucket_name), it also stores volume key (with schema /volume_name) and user key
(with schema $user_name). It is expected that some of the keys will not match the pattern
here so null value is expected instead of an error. Please let me know if this makes sense
to you.

Thank you.

> Ozone: KSM: add listBuckets
> ---------------------------
>
>                 Key: HDFS-11779
>                 URL: https://issues.apache.org/jira/browse/HDFS-11779
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>    Affects Versions: HDFS-7240
>            Reporter: Anu Engineer
>            Assignee: Weiwei Yang
>         Attachments: HDFS-11779-HDFS-7240.001.patch, HDFS-11779-HDFS-7240.002.patch,
HDFS-11779-HDFS-7240.003.patch
>
>
> Lists buckets of a given volume. Similar to listVolumes, paging supported via prevKey,
prefix and maxKeys.



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