[ https://issues.apache.org/jira/browse/HDFS-6383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13997139#comment-13997139 ]
Aaron T. Myers commented on HDFS-6383: -------------------------------------- Not sure why it didn't run, but I've just kicked Jenkins manually. Here's a link to the pre-commit build for this patch: https://builds.apache.org/job/PreCommit-HDFS-Build/6897/ > 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)