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Steve Loughran ba55f370a9
HADOOP-18526. Leak of S3AInstrumentation instances via hadoop Metrics references (#5144) 
This has triggered an OOM in a process which was churning through s3a fs
instances; the increased memory footprint of IOStatistics amplified what
must have been a long-standing issue with FS instances being created
and not closed()

*  Makes sure instrumentation is closed when the FS is closed.
*  Uses a weak reference from metrics to instrumentation, so even
   if the FS wasn't closed (see HADOOP-18478), this back reference
   would not cause the S3AInstrumentation reference to be retained.
*  If S3AFileSystem is configured to log at TRACE it will log the
   calling stack of initialize(), so help identify where the
   instance is being created. This should help track down
   the cause of instance leakage.

Contributed by Steve Loughran.
2022-12-14 18:23:04 +00:00
.github HADOOP-15184. Add GitHub pull request template. (#1419) 2019-09-11 11:10:11 +09:00
dev-support HADOOP-18401. No ARM binaries in branch-3.3.x releases. (#4953) 2022-10-07 15:58:51 +01:00
hadoop-assemblies HADOOP-18305. Preparing for 3.3.4 release: branch-3.3 version => 3.3.9 (#4482) 2022-06-22 13:09:50 +01:00
hadoop-build-tools HADOOP-18305. Preparing for 3.3.4 release: branch-3.3 version => 3.3.9 (#4482) 2022-06-22 13:09:50 +01:00
hadoop-client-modules HADOOP-15983. Use jersey-json that is built to use jackson2 ((#3988) 2022-10-20 17:37:56 +01:00
hadoop-cloud-storage-project HADOOP-18442. Remove openstack support (#4855) 2022-10-07 12:03:08 +01:00
hadoop-common-project HADOOP-18526. Leak of S3AInstrumentation instances via hadoop Metrics references (#5144) 2022-12-14 18:23:04 +00:00
hadoop-dist HADOOP-18305. Preparing for 3.3.4 release: branch-3.3 version => 3.3.9 (#4482) 2022-06-22 13:09:50 +01:00
hadoop-hdfs-project HDFS-16809. EC striped block is not sufficient when doing in maintenance. (#5050) 2022-12-05 16:39:49 +09:00
hadoop-mapreduce-project HADOOP-18484. Upgrade hsqldb to v2.7.1 to mitigate CVE-2022-41853 (#5101) 2022-11-04 11:00:17 +01:00
hadoop-maven-plugins HADOOP-18305. Preparing for 3.3.4 release: branch-3.3 version => 3.3.9 (#4482) 2022-06-22 13:09:50 +01:00
hadoop-minicluster HADOOP-18305. Preparing for 3.3.4 release: branch-3.3 version => 3.3.9 (#4482) 2022-06-22 13:09:50 +01:00
hadoop-project HADOOP-18470. index.md update for 3.3.5 release 2022-12-05 16:22:40 +00:00
hadoop-project-dist HADOOP-18305. Release Hadoop 3.3.4: upstream changelog and jdiff files 2022-08-05 14:02:28 +01:00
hadoop-tools HADOOP-18526. Leak of S3AInstrumentation instances via hadoop Metrics references (#5144) 2022-12-14 18:23:04 +00:00
hadoop-yarn-project YARN-11390. TestResourceTrackerService.testNodeRemovalNormally: Shutdown nodes should be 0 now expected: <1> but was: <0> (#5190) 2022-12-08 18:15:08 +00:00
licenses HADOOP-17666. Update LICENSE for 3.3.1 (#3011) 2021-05-21 18:15:48 -07:00
licenses-binary HADOOP-17666. Update LICENSE for 3.3.1 (#3011) 2021-05-21 18:15:48 -07:00
.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 YARN-10407. Add phantomjsdriver.log to gitignore. (#2244) 2021-02-17 10:28:17 +09:00
BUILDING.txt HADOOP-18214. Update BUILDING.txt (#3811) 2022-04-21 18:39:51 +01:00
LICENSE-binary HADOOP-18515. Backport HADOOP-17612 to branch-3.3(Upgrade Zookeeper to 3.6.3 and Curator to 5.2.0) (#5097) 2022-11-05 09:28:24 -07:00
LICENSE-binary-yarn-applications-catalog-webapp HADOOP-17666. Update LICENSE for 3.3.1 (#3011) 2021-05-21 18:15:48 -07:00
LICENSE-binary-yarn-ui HADOOP-17666. Update LICENSE for 3.3.1 (#3011) 2021-05-21 18:15:48 -07:00
LICENSE.txt HADOOP-18044. Hadoop - Upgrade to jQuery 3.6.0 (#3791) 2022-02-11 23:18:25 +08:00
NOTICE-binary HADOOP-18068. upgrade AWS SDK to 1.12.132 (#3864) 2022-01-18 12:20:12 +00:00
NOTICE.txt HADOOP-15958. Revisiting LICENSE and NOTICE files. 2019-08-27 13:47:12 +09:00
pom.xml HADOOP-18305. Preparing for 3.3.4 release: branch-3.3 version => 3.3.9 (#4482) 2022-06-22 13:09:50 +01:00
README.txt HADOOP-15958. Revisiting LICENSE and NOTICE files. 2019-08-27 13:47:12 +09:00
start-build-env.sh HADOOP-18052. Support Apple Silicon in start-build-env.sh (#3817) 2021-12-23 18:14:16 +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/