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https://issues.apache.org/jira/browse/HADOOP-13028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15281909#comment-15281909
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Hudson commented on HADOOP-13028:
---------------------------------
SUCCESS: Integrated in Hadoop-trunk-Commit #9753 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/9753/])
HADOOP-13028 add low level counter metrics for S3A; use in read (stevel: rev
27c4e90efce04e1b1302f668b5eb22412e00d033)
*
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/scale/S3AScaleTestBase.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FSDataInputStream.java
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AOutputStream.java
*
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/scale/TestS3AInputStreamPerformance.java
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AInputStream.java
* hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/index.md
* hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/AnonymousAWSCredentialsProvider.java
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/BasicAWSCredentialsProvider.java
* hadoop-tools/hadoop-aws/src/test/resources/log4j.properties
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/MetricStringBuilder.java
* hadoop-tools/hadoop-aws/dev-support/findbugs-exclude.xml
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3/FileSystemStore.java
* hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Constants.java
*
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/scale/TestS3ADeleteManyFiles.java
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFastOutputStream.java
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3/S3Credentials.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/lib/MutableCounterLong.java
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AInstrumentation.java
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileStatus.java
*
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
> add low level counter metrics for S3A; use in read performance tests
> --------------------------------------------------------------------
>
> Key: HADOOP-13028
> URL: https://issues.apache.org/jira/browse/HADOOP-13028
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3, metrics
> Affects Versions: 2.8.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Fix For: 2.8.0
>
> Attachments: HADOOP-13028-001.patch, HADOOP-13028-002.patch,
> HADOOP-13028-004.patch, HADOOP-13028-005.patch, HADOOP-13028-006.patch,
> HADOOP-13028-007.patch, HADOOP-13028-008.patch, HADOOP-13028-009.patch,
> HADOOP-13028-012.patch, HADOOP-13028-013.patch,
> HADOOP-13028-branch-2-008.patch, HADOOP-13028-branch-2-009.patch,
> HADOOP-13028-branch-2-010.patch, HADOOP-13028-branch-2-011.patch,
> HADOOP-13028-branch-2-012.patch, HADOOP-13028-branch-2-013.patch,
> org.apache.hadoop.fs.s3a.scale.TestS3AInputStreamPerformance-output.txt,
> org.apache.hadoop.fs.s3a.scale.TestS3AInputStreamPerformance-output.txt
>
>
> against S3 (and other object stores), opening connections can be expensive,
> closing connections may be expensive (a sign of a regression).
> S3A FS and individual input streams should have counters of the # of
> open/close/failure+reconnect operations, timers of how long things take. This
> can be used downstream to measure efficiency of the code (how often
> connections are being made), connection reliability, etc.
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