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https://issues.apache.org/jira/browse/HDFS-16615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yongpan Liu updated HDFS-16615:
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Description:
{color:#000000}Currently, the OIV tool does not support printing EC policy and
EC replication of EC file. {color}{color:#000000}In addition, fsImage records
only data blocks of EC files, ignoring parity blocks.{color}
{color:#000000}We can calculate replication for EC files based on (data block +
Parity Block)/(data block).{color}
{color:#000000}For example, if we write 10K data to file a.txt whose EC policy
is RS-6-3-1 K, the file will consist of 10 data blocks and 6 parity block. So
its replication factor is 1.6.{color}
was:
{color:#000000}Currently, the OIV tool does not support printing EC policy and
EC replication of EC file. {color}{color:#000000}In addition, fsImage records
only data blocks of EC files, ignoring parity blocks.{color}
{color:#000000}We can calculate replication for EC files based on (data block +
Parity Block)/(data block).{color}
{color:#000000}For example, if we write 10K data to file a.txt whose EC policy
is RS-6-3-1 K, the file will consist of 10 data blocks and 6 parity, then its
replication factor is 1.6.{color}
> OIV: print out EC policy and EC replication in oiv Delimited output
> --------------------------------------------------------------------
>
> Key: HDFS-16615
> URL: https://issues.apache.org/jira/browse/HDFS-16615
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: tools
> Affects Versions: 3.0.0
> Reporter: Yongpan Liu
> Priority: Minor
> Fix For: 3.3.0
>
> Attachments: HDFS-16615.001.patch
>
>
> {color:#000000}Currently, the OIV tool does not support printing EC policy
> and EC replication of EC file. {color}{color:#000000}In addition, fsImage
> records only data blocks of EC files, ignoring parity blocks.{color}
> {color:#000000}We can calculate replication for EC files based on (data block
> + Parity Block)/(data block).{color}
> {color:#000000}For example, if we write 10K data to file a.txt whose EC
> policy is RS-6-3-1 K, the file will consist of 10 data blocks and 6 parity
> block. So its replication factor is 1.6.{color}
>
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