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https://issues.apache.org/jira/browse/HADOOP-13171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15308130#comment-15308130
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Steve Loughran commented on HADOOP-13171:
-----------------------------------------
Patch 010 (which is 009+ a typo in the docs fixed)
# scale for directory operations has its own property
{{scale.test.directory.count}}; set low (2) and documented.
# {{ProgressableProgressListener}}: clean up done
# null checks for {{FileSystem.statistics}}. I think I'd concluded from all the
null checks elsewhere that it could be null, so included them. But that's only
for the input & output streams, isn't it? Pulled.
# Iterator around {{Collections.unmodifiableSet}}. Nicely spotted —I hadn't
even thought of that. Done
# {{S3ATestUtils#createSubdirs}} javadocs. I've pulled that method into
{{ContractTestUtils}}; looks like the cut and paste fixed it.
# temp dir for {{testCostOfCopyFromLocalFile}} : using
{{GenericTestUtils.getTestDir("tmp")}} for a temp dir.
> Add StorageStatistics to S3A; instrument some more operations
> -------------------------------------------------------------
>
> Key: HADOOP-13171
> URL: https://issues.apache.org/jira/browse/HADOOP-13171
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.8.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
> Attachments: HADOOP-13171-branch-2-001.patch,
> HADOOP-13171-branch-2-002.patch, HADOOP-13171-branch-2-003.patch,
> HADOOP-13171-branch-2-004.patch, HADOOP-13171-branch-2-005.patch,
> HADOOP-13171-branch-2-006.patch, HADOOP-13171-branch-2-007.patch,
> HADOOP-13171-branch-2-008.patch, HADOOP-13171-branch-2-009.patch,
> HADOOP-13171-branch-2-010.patch
>
>
> Add {{StorageStatistics}} support to S3A, collecting the same metrics as the
> instrumentation, but sharing across all instances.
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