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https://issues.apache.org/jira/browse/HADOOP-16202?focusedWorklogId=652397&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-652397
]
ASF GitHub Bot logged work on HADOOP-16202:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 17/Sep/21 17:24
Start Date: 17/Sep/21 17:24
Worklog Time Spent: 10m
Work Description: steveloughran commented on a change in pull request
#2584:
URL: https://github.com/apache/hadoop/pull/2584#discussion_r711229603
##########
File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/Options.java
##########
@@ -518,4 +522,112 @@ public String toString() {
MD5MD5CRC, // MD5 of block checksums, which are MD5 over chunk CRCs
COMPOSITE_CRC // Block/chunk-independent composite CRC
}
+
+ /**
+ * The standard {@code openFile()} options.
+ */
+ @InterfaceAudience.Public
+ @InterfaceStability.Evolving
+ public static final class OpenFileOptions {
+
+ private OpenFileOptions() {
+ }
+
+ /**
+ * Prefix for all standard filesystem options: {@value}.
+ */
+ public static final String FILESYSTEM_OPTION = "fs.option.";
Review comment:
made it private
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Issue Time Tracking
-------------------
Worklog Id: (was: 652397)
Time Spent: 11.5h (was: 11h 20m)
> Stabilize openFile() and adopt internally
> -----------------------------------------
>
> Key: HADOOP-16202
> URL: https://issues.apache.org/jira/browse/HADOOP-16202
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs, fs/s3, tools/distcp
> Affects Versions: 3.3.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
> Labels: pull-request-available
> Time Spent: 11.5h
> Remaining Estimate: 0h
>
> The {{openFile()}} builder API lets us add new options when reading a file
> Add an option {{"fs.s3a.open.option.length"}} which takes a long and allows
> the length of the file to be declared. If set, *no check for the existence of
> the file is issued when opening the file*
> Also: withFileStatus() to take any FileStatus implementation, rather than
> only S3AFileStatus -and not check that the path matches the path being
> opened. Needed to support viewFS-style wrapping and mounting.
> and Adopt where appropriate to stop clusters with S3A reads switched to
> random IO from killing download/localization
> * fs shell copyToLocal
> * distcp
> * IOUtils.copy
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