hadoop/hadoop-common-project
Steve Loughran 7a45ef4164
MAPREDUCE-7435. Manifest Committer OOM on abfs (#5519)
This modifies the manifest committer so that the list of files
to rename is passed between stages as a file of
writeable entries on the local filesystem.

The map of directories to create is still passed in memory;
this map is built across all tasks, so even if many tasks
created files, if they all write into the same set of directories
the memory needed is O(directories) with the
task count not a factor.

The _SUCCESS file reports on heap size through gauges.
This should give a warning if there are problems.

Contributed by Steve Loughran
2023-06-09 17:00:59 +01:00
..
hadoop-annotations HADOOP-17947. Additional element types for VisibleForTesting (ADDENDUM) (#3521) 2021-10-06 02:17:05 +09:00
hadoop-auth Revert "HADOOP-18207. Introduce hadoop-logging module (#5503)" 2023-06-05 09:34:40 +05:30
hadoop-auth-examples Revert "HADOOP-18207. Introduce hadoop-logging module (#5503)" 2023-06-05 09:34:40 +05:30
hadoop-common MAPREDUCE-7435. Manifest Committer OOM on abfs (#5519) 2023-06-09 17:00:59 +01:00
hadoop-kms Revert "HADOOP-18207. Introduce hadoop-logging module (#5503)" 2023-06-05 09:34:40 +05:30
hadoop-minikdc Revert "HADOOP-18207. Introduce hadoop-logging module (#5503)" 2023-06-05 09:34:40 +05:30
hadoop-nfs HADOOP-18206 Cleanup the commons-logging references and restrict its usage in future (#5315) 2023-02-14 03:24:06 +08:00
hadoop-registry HADOOP-18359. Update commons-cli from 1.2 to 1.5. (#5095). Contributed by Shilun Fan. 2023-05-10 01:42:12 +05:30
pom.xml Revert "HADOOP-18207. Introduce hadoop-logging module (#5503)" 2023-06-05 09:34:40 +05:30