hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "SammiChen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12394) Erasure coding policy cell size should not be greater than file block size
Date Tue, 05 Sep 2017 06:17:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

SammiChen updated HDFS-12394:
-----------------------------
    Description: 
Current the minimum block size is defined by "dfs.namenode.fs-limits.min-block-size" with
default value 1MB.  Default block size is defined by "dfs.blocksize" with default value 128MB.
Maximum erasure coding policy cell size is defined by "dfs.namenode.ec.policies.max.cellsize"
with default value 4MB.  We need to make sure the erasure coding policy cell size should not
be greater than file block size, file read/write will fail. 



  was:
Current the minimum block size is defined by "dfs.namenode.fs-limits.min-block-size" with
default value 1MB.  Default block size is defined by "dfs.blocksize" with default value 128MB.
Maximum erasure coding policy cell size is defined by "dfs.namenode.ec.policies.max.cellsize"
with default value 4MB.  We need to make sure the erasure coding policy cell size should not.
be greater than file block size, file read/write will fail. 




> Erasure coding policy cell size should not be greater than file block size
> --------------------------------------------------------------------------
>
>                 Key: HDFS-12394
>                 URL: https://issues.apache.org/jira/browse/HDFS-12394
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: erasure-coding
>    Affects Versions: 3.0.0-alpha4
>            Reporter: SammiChen
>              Labels: hdfs-ec-3.0-nice-to-have
>
> Current the minimum block size is defined by "dfs.namenode.fs-limits.min-block-size"
with default value 1MB.  Default block size is defined by "dfs.blocksize" with default value
128MB. Maximum erasure coding policy cell size is defined by "dfs.namenode.ec.policies.max.cellsize"
with default value 4MB.  We need to make sure the erasure coding policy cell size should not
be greater than file block size, file read/write will fail. 



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org


Mime
View raw message