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https://issues.apache.org/jira/browse/HADOOP-13786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated HADOOP-13786:
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Attachment: HADOOP-13786-HADOOP-13345-033.patch
Patch 033
* fault injection to include raising throttle exceptions
* test all the commit operations
* fix bugs in retry logic which surfaced, including existing one in
S3ABlockOutputStream.
* clean up WriteOperationHelper with move to S3A lambda
* retry policy considers {{ConnectTimeoutException}} as retriable.
All the new commit actions are tested as resilient to throttle exceptions,
which is how I verify that they are being handled by the s3a lambda calls.
What is not wrapped/handled is the underlying implementations of S3AFS
(getFileStatus, create, open, ), all of which need to be. That can be done once
this is merged into S3A.
+ (checkstyle fixed where appropriate)
Testing, S3a Ireland. I'm getting intermittent BadRequest exceptions on
{{ITestS3AEncryptionSSEC}} and
{{TestS3AContractRootDir.testRecursiveRootListing}}, when run as part of the
maven parallel test run *but not when run alone*. These are all part of the
sequential test. I also got some in {{ITestS3ACommitOperations}} which implied
the FS it was getting didn't have fault injection enabled; explicitly asking
for a new FS fixed that. Something is up with JVM and test recycling, I fear
> Add S3Guard committer for zero-rename commits to S3 endpoints
> -------------------------------------------------------------
>
> Key: HADOOP-13786
> URL: https://issues.apache.org/jira/browse/HADOOP-13786
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs/s3
> Affects Versions: HADOOP-13345
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Attachments: HADOOP-13786-HADOOP-13345-001.patch,
> HADOOP-13786-HADOOP-13345-002.patch, HADOOP-13786-HADOOP-13345-003.patch,
> HADOOP-13786-HADOOP-13345-004.patch, HADOOP-13786-HADOOP-13345-005.patch,
> HADOOP-13786-HADOOP-13345-006.patch, HADOOP-13786-HADOOP-13345-006.patch,
> HADOOP-13786-HADOOP-13345-007.patch, HADOOP-13786-HADOOP-13345-009.patch,
> HADOOP-13786-HADOOP-13345-010.patch, HADOOP-13786-HADOOP-13345-011.patch,
> HADOOP-13786-HADOOP-13345-012.patch, HADOOP-13786-HADOOP-13345-013.patch,
> HADOOP-13786-HADOOP-13345-015.patch, HADOOP-13786-HADOOP-13345-016.patch,
> HADOOP-13786-HADOOP-13345-017.patch, HADOOP-13786-HADOOP-13345-018.patch,
> HADOOP-13786-HADOOP-13345-019.patch, HADOOP-13786-HADOOP-13345-020.patch,
> HADOOP-13786-HADOOP-13345-021.patch, HADOOP-13786-HADOOP-13345-022.patch,
> HADOOP-13786-HADOOP-13345-023.patch, HADOOP-13786-HADOOP-13345-024.patch,
> HADOOP-13786-HADOOP-13345-025.patch, HADOOP-13786-HADOOP-13345-026.patch,
> HADOOP-13786-HADOOP-13345-027.patch, HADOOP-13786-HADOOP-13345-028.patch,
> HADOOP-13786-HADOOP-13345-028.patch, HADOOP-13786-HADOOP-13345-029.patch,
> HADOOP-13786-HADOOP-13345-030.patch, HADOOP-13786-HADOOP-13345-031.patch,
> HADOOP-13786-HADOOP-13345-032.patch, HADOOP-13786-HADOOP-13345-033.patch,
> objectstore.pdf, s3committer-master.zip
>
>
> A goal of this code is "support O(1) commits to S3 repositories in the
> presence of failures". Implement it, including whatever is needed to
> demonstrate the correctness of the algorithm. (that is, assuming that s3guard
> provides a consistent view of the presence/absence of blobs, show that we can
> commit directly).
> I consider ourselves free to expose the blobstore-ness of the s3 output
> streams (ie. not visible until the close()), if we need to use that to allow
> us to abort commit operations.
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