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https://issues.apache.org/jira/browse/HADOOP-16490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16927718#comment-16927718
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Hudson commented on HADOOP-16490:
---------------------------------
FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #17276 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/17276/])
HADOOP-16490. Avoid/handle cached 404s during S3A file creation. (stevel: rev
9221704f857e33a5f9e00c19d3705e46e94f427b)
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/impl/ChangeTracker.java
* (edit) hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3ARetryPolicy.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/impl/ChangeDetectionPolicy.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3ARemoteFileChanged.java
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/Command.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3GuardEmptyDirs.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3GuardOutOfBandOperations.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Constants.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/S3ATestUtils.java
* (edit)
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/ContractTestUtils.java
* (add)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/impl/StatusProbeEnum.java
* (edit) hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/index.md
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/CommandWithDestination.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AEmptyDirectory.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/impl/InternalConstants.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/commit/AbstractITCommitMRJob.java
* (edit)
hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/troubleshooting_s3a.md
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3GuardWriteBack.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3GuardExistsRetryPolicy.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3AFileOperationCost.java
* (edit)
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3GuardTtl.java
* (edit)
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/shell/TestCopy.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
* (edit)
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/RemoteFileChangedException.java
> Avoid/handle cached 404s during S3A file creation
> -------------------------------------------------
>
> Key: HADOOP-16490
> URL: https://issues.apache.org/jira/browse/HADOOP-16490
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.3.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Major
>
> If S3Guard is encountering delayed consistency (FNFE from tombstone; failure
> to open file) then
> * it only retries with the same times as everything else. We should make it
> differently configurable
> * when an FNFE is finally thrown, rename() treats it as being caused by the
> original source path missing, when in fact its something else. Proposed:
> somehow propagate the failure up differently, probably in the
> S3AFileSystem.copyFile() code
> * don't do HEAD checks when creating files
> * shell commands to avoid deleteOnExit calls as these also generate HEAD
> calls by way of exists() checks
> eliminating the HEAD checks will stop 404s getting into the S3 load
> balancer/cache during file creation
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