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Aaron T. Myers updated HDFS-6383: --------------------------------- Target Version/s: 2.5.0 Affects Version/s: 2.4.0 Assignee: Ted Malaska Thanks a lot for the patch, Ted. I've assigned it to you and will go see if I can figure out why the pre-commit Jenkins job hasn't run yet. > Upgrade S3n s3.fs.buffer.dir to suppoer multi directories > --------------------------------------------------------- > > Key: HDFS-6383 > URL: https://issues.apache.org/jira/browse/HDFS-6383 > Project: Hadoop HDFS > Issue Type: Improvement > Affects Versions: 2.4.0 > Reporter: Ted Malaska > Assignee: Ted Malaska > Priority: Minor > Attachments: HDFS-6383.patch > > > s3.fs.buffer.dir defines the tmp folder where files will be written to before > getting sent to S3. Right now this is limited to a single folder which > causes to major issues. > 1. You need a drive with enough space to store all the tmp files at once > 2. You are limited to the IO speeds of a single drive > This solution will resolve both and has been tested to increase the S3 write > speed by 2.5x with 10 mappers on hs1. -- This message was sent by Atlassian JIRA (v6.2#6252)