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https://issues.apache.org/jira/browse/HDFS-11394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15979845#comment-15979845
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Kai Sasaki commented on HDFS-11394:
-----------------------------------
The patch aims to include erasure coding policy in the response JSON when it
WebHDFS receives {{LISTSTATUS}} and {{GET_FILESTATUS}} op.
{code}
$ curl http://localhost:9870/webhdfs/v1/ec\?op\=GETFILESTATUS | jq
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 351 0 351 0 0 27629 0 --:--:-- --:--:-- --:--:-- 27000
{
"FileStatus": {
"accessTime": 0,
"blockSize": 0,
"childrenNum": 1,
"ecBit": true,
"erasureCodingPolicy": {
"codecName": "rs",
"cellSize": 65536,
"numDataUnits": 3,
"numParityUnits": 2
},
"fileId": 16392,
"group": "supergroup",
"length": 0,
"modificationTime": 1492855409458,
"owner": "root",
"pathSuffix": "",
"permission": "755",
"replication": 0,
"storagePolicy": 0,
"type": "DIRECTORY"
}
}
{code}
> Add method for getting erasure coding policy through WebHDFS
> -------------------------------------------------------------
>
> Key: HDFS-11394
> URL: https://issues.apache.org/jira/browse/HDFS-11394
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: erasure-coding, namenode
> Reporter: Kai Sasaki
> Assignee: Kai Sasaki
> Labels: hdfs-ec-3.0-nice-to-have
> Attachments: HDFS-11394.01.patch
>
>
> We can expose erasure coding policy by erasure coded directory through
> WebHDFS method as well as storage policy. This information can be used by
> NameNode Web UI and show the detail of erasure coded directories.
> see: HDFS-8196
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