hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8117) More accurate verification in SimulatedFSDataset: replace DEFAULT_DATABYTE with patterned data
Date Mon, 13 Apr 2015 19:22:13 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhe Zhang updated HDFS-8117:
----------------------------
    Attachment: HDFS-8117.003.patch

Thanks Andrew for the review!

The new patch moves the util method of filling expected buffer to {{DFSTestUtil}} and now
the logic is on {{LocatedBlocks}} level. 

> More accurate verification in SimulatedFSDataset: replace DEFAULT_DATABYTE with patterned
data
> ----------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8117
>                 URL: https://issues.apache.org/jira/browse/HDFS-8117
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>         Attachments: HDFS-8117.000.patch, HDFS-8117.001.patch, HDFS-8117.002.patch, HDFS-8117.003.patch
>
>
> Currently {{SimulatedFSDataset}} uses a single {{DEFAULT_DATABYTE}} to simulate _all_
block content. This is not accurate because the return of this byte just means the read request
has hit an arbitrary position in an arbitrary simulated block.
> This JIRA aims to improve it with a more accurate verification. When position {{p}} of
a simulated block {{b}} is accessed, the returned byte is {{b}}'s block ID plus {{p}}, moduled
by the max value of a byte.



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

Mime
View raw message