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Mukund Thakur e77767bb1e
HADOOP-16711. 
This adds a new option fs.s3a.bucket.probe, range (0-2) to
control which probe for a bucket existence to perform on startup.

0: no checks
1: v1 check (as has been performend until now)
2: v2 bucket check, which also incudes a permission check. Default.

When set to 0, bucket existence checks won't be done
during initialization thus making it faster.
When the bucket is not available in S3,
or if fs.s3a.endpoint points to the wrong instance of a private S3 store
consecutive calls like listing, read, write etc. will fail with
an UnknownStoreException.

Contributed by:
  * Mukund Thakur (main patch and tests)
  * Rajesh Balamohan (v0 list and performance tests)
  * lqjacklee (HADOOP-15990/v2 list)
  * Steve Loughran (UnknownStoreException support)

       modified:   hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Constants.java
       modified:   hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
       modified:   hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3ARetryPolicy.java
       modified:   hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AUtils.java
       new file:   hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/UnknownStoreException.java
       new file:   hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/impl/ErrorTranslation.java
       modified:   hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/index.md
       modified:   hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/performance.md
       modified:   hadoop-tools/hadoop-aws/src/site/markdown/tools/hadoop-aws/troubleshooting_s3a.md
       modified:   hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/AbstractS3AMockTest.java
       new file:   hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/ITestS3ABucketExistence.java
       modified:   hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/MockS3ClientFactory.java
       modified:   hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/TestS3AExceptionTranslation.java
       modified:   hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/s3guard/AbstractS3GuardToolTestBase.java
       modified:   hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/s3guard/ITestS3GuardToolDynamoDB.java
       modified:   hadoop-tools/hadoop-aws/src/test/resources/core-site.xml

Change-Id: Ic174f803e655af172d81c1274ed92b51bdceb384
2020-02-21 13:44:46 +00:00
.github HADOOP-15184. Add GitHub pull request template. (#1419) 2019-09-11 11:10:11 +09:00
dev-support HADOOP-16797. Add Dockerfile for ARM builds. Contributed by Vinayakumar B. (#1801) 2020-01-13 10:40:29 +05:30
hadoop-assemblies HADOOP-16670. Stripping Submarine code from Hadoop codebase. Contributed by Zhankun Tang. 2020-01-21 20:07:31 -08:00
hadoop-build-tools HADOOP-16771. Update checkstyle to 8.26 and maven-checkstyle-plugin to 3.1.0. Contributed by Andras Bokor. 2019-12-20 13:10:26 +09:00
hadoop-client-modules HADOOP-16614. Add aarch64 support for dependent leveldbjni. 2019-10-24 11:45:57 -04:00
hadoop-cloud-storage-project HADOOP-16702. Move documentation of hadoop-cos to under src directory. 2019-11-12 17:47:17 +09:00
hadoop-common-project HADOOP-16868. ipc.Server readAndProcess threw NullPointerException. Contributed by Tsz-wo Sze. 2020-02-18 21:53:08 -08:00
hadoop-dist HDFS-14639. [Dynamometer] Remove unnecessary duplicate directory from the distribution. Contributed by Erik Krogen. 2019-07-29 13:50:14 -07:00
hadoop-hdfs-project HDFS-15052. WebHDFS getTrashRoot leads to OOM due to FileSystem object creation. (#1758) 2020-02-21 11:56:07 +09:00
hadoop-mapreduce-project MAPREDUCE-7263. Remove obsolete validateTargetPath() from FrameworkUploader. Contributed by Marton Hudaky 2020-02-12 15:53:33 +01:00
hadoop-maven-plugins HADOOP-16331. Fix ASF License check in pom.xml 2019-05-29 17:25:13 +09:00
hadoop-minicluster HADOOP-16331. Fix ASF License check in pom.xml 2019-05-29 17:25:13 +09:00
hadoop-project HADOOP-16869. Upgrade findbugs-maven-plugin to 3.0.5 to fix mvn findbugs:findbugs failure (#1855) 2020-02-21 12:22:16 +09:00
hadoop-project-dist Make upstream aware of 3.2.1 release. 2019-09-23 06:20:54 +00:00
hadoop-tools HADOOP-16711. 2020-02-21 13:44:46 +00:00
hadoop-yarn-project YARN-10119. Option to reset AM failure count for YARN Service 2020-02-20 20:34:06 +05:30
licenses HADOOP-15958. Revisiting LICENSE and NOTICE files. 2019-08-27 13:47:12 +09:00
licenses-binary HADOOP-15993. Upgrade Kafka to 2.4.0 in hadoop-kafka module. (#1796) 2020-01-09 16:24:58 +09:00
.gitattributes HADOOP-13598. Add eol=lf for unix format files in .gitattributes. Contributed by Yiqun Lin. 2016-09-14 11:14:31 +09:00
.gitignore HDDS-1115. Provide ozone specific top-level pom.xml. 2019-02-24 14:40:52 -08:00
BUILDING.txt HADOOP-16856. cmake is missing in the CentOS 8 section of BUILDING.txt. (#1841) 2020-02-12 21:17:33 +09:00
Jenkinsfile HADOOP-16110 Upgrade to yetus 0.11.1 and use emoji vote on github pre commit (#1527). Contributed by Duo Zhang. 2019-11-19 14:21:49 +05:30
LICENSE-binary YARN-8374. Upgrade objenesis to 2.6 (#1798) 2020-02-19 09:50:37 +09:00
LICENSE.txt YARN-9561. Add C changes for the new RuncContainerRuntime. Contributed by Eric Badger 2019-12-09 01:25:10 +00:00
NOTICE-binary HADOOP-15958. Revisiting LICENSE and NOTICE files. 2019-08-27 13:47:12 +09:00
NOTICE.txt HADOOP-15958. Revisiting LICENSE and NOTICE files. 2019-08-27 13:47:12 +09:00
pom.xml Bump checkstyle from 8.26 to 8.29 (#1828) 2020-02-07 19:32:10 +09:00
README.txt HADOOP-15958. Revisiting LICENSE and NOTICE files. 2019-08-27 13:47:12 +09:00
start-build-env.sh HADOOP-16849. start-build-env.sh behaves incorrectly when username is numeric only. Contributed by Jihyun Cho. 2020-02-12 14:06:23 +09:00

README.txt 

For the latest information about Hadoop, please visit our website at:

   http://hadoop.apache.org/

and our wiki, at:

   https://cwiki.apache.org/confluence/display/HADOOP/