hadoop/hadoop-mapreduce-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
..
bin MAPREDUCE-7281. Fix NoClassDefFoundError on 'mapred minicluster'. (#2077) 2020-06-20 07:37:55 +09:00
conf MAPREDUCE-6875. Rename mapred-site.xml.template to mapred-site.xml. (Yuanbo Liu via Haibo Chen) 2017-04-17 12:25:30 -07:00
dev-support HADOOP-18470. Hadoop 3.3.5 release wrap-up (#5558) 2023-04-18 10:12:07 +01:00
hadoop-mapreduce-client MAPREDUCE-7435. Manifest Committer OOM on abfs (#5519) 2023-06-09 17:00:59 +01:00
hadoop-mapreduce-examples HADOOP-18724. Open file fails with NumberFormatException for S3AFileSystem (#5611) 2023-05-11 17:57:25 +01:00
lib/jdiff
shellprofile.d HADOOP-12930. Dynamic subcommands for hadoop shell scripts (aw) 2016-05-16 17:54:45 -07:00
.gitignore MAPREDUCE-6875. Rename mapred-site.xml.template to mapred-site.xml. (Yuanbo Liu via Haibo Chen) 2017-04-17 12:25:30 -07:00
pom.xml MAPREDUCE-7386. Maven parallel builds (skipping tests) fail (#4415) 2022-11-04 11:50:43 +00:00