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https://issues.apache.org/jira/browse/HADOOP-12020?focusedWorklogId=767399&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-767399
]
ASF GitHub Bot logged work on HADOOP-12020:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 06/May/22 20:03
Start Date: 06/May/22 20:03
Worklog Time Spent: 10m
Work Description: mukund-thakur commented on code in PR #3877:
URL: https://github.com/apache/hadoop/pull/3877#discussion_r867174852
##########
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Constants.java:
##########
@@ -429,6 +429,24 @@ private Constants() {
*/
public static final String CONTENT_ENCODING =
"fs.s3a.object.content.encoding";
+ /**
+ * S3 storage class: standard, reduced_redundancy, intelligent_tiering etc.
+ */
+ public static final String STORAGE_CLASS = "fs.s3a.storage.class";
+
+ /**
+ * All possible values for storage class.
+ */
+ public static final String STORAGE_CLASS_STANDARD = "standard";
+ public static final String STORAGE_CLASS_REDUCED_REDUNDANCY =
"reduced_redundancy";
+ public static final String STORAGE_CLASS_GLACIER = "glacier";
+ public static final String STORAGE_CLASS_STANDARD_INFREQUENT_ACCESS =
"standard_ia";
+ public static final String STORAGE_CLASS_ONEZONE_INFREQUENT_ACCESS =
"onezone_ia";
+ public static final String STORAGE_CLASS_INTELLIGENT_TIERING =
"intelligent_tiering";
+ public static final String STORAGE_CLASS_DEEP_ARCHIVE = "deep_archive";
+ public static final String STORAGE_CLASS_OUTPOSTS = "outposts";
+ public static final String STORAGE_CLASS_GLACIER_INSTANT_RETRIEVAL =
"glacier_ir";
+
Review Comment:
Can we not pick these values for SDK. What if they add something new in
future?
Issue Time Tracking
-------------------
Worklog Id: (was: 767399)
Time Spent: 1h 50m (was: 1h 40m)
> Support AWS S3 reduced redundancy storage class
> -----------------------------------------------
>
> Key: HADOOP-12020
> URL: https://issues.apache.org/jira/browse/HADOOP-12020
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.7.0
> Environment: Hadoop on AWS
> Reporter: Yann Landrin-Schweitzer
> Assignee: Monthon Klongklaew
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> Amazon S3 uses, by default, the NORMAL_STORAGE class for s3 objects.
> This offers, according to Amazon's material, 99.99999999% reliability.
> For many applications, however, the 99.99% reliability offered by the
> REDUCED_REDUNDANCY storage class is amply sufficient, and comes with a
> significant cost saving.
> HDFS, when using the legacy s3n protocol, or the new s3a scheme, should
> support overriding the default storage class of created s3 objects so that
> users can take advantage of this cost benefit.
> This would require minor changes of the s3n and s3a drivers, using
> a configuration property fs.s3n.storage.class to override the default storage
> when desirable.
> This override could be implemented in Jets3tNativeFileSystemStore with:
> S3Object object = new S3Object(key);
> ...
> if(storageClass!=null) object.setStorageClass(storageClass);
> It would take a more complex form in s3a, e.g. setting:
> InitiateMultipartUploadRequest initiateMPURequest =
> new InitiateMultipartUploadRequest(bucket, key, om);
> if(storageClass !=null ) {
> initiateMPURequest =
> initiateMPURequest.withStorageClass(storageClass);
> }
> and similar statements in various places.
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