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ASF GitHub Bot logged work on HDFS-16403: ----------------------------------------- Author: ASF GitHub Bot Created on: 25/Jan/22 05:02 Start Date: 25/Jan/22 05:02 Worklog Time Spent: 10m Work Description: jojochuang merged pull request #3842: URL: https://github.com/apache/hadoop/pull/3842 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 714204) Time Spent: 3.5h (was: 3h 20m) > Improve FUSE IO performance by supporting FUSE parameter max_background > ----------------------------------------------------------------------- > > Key: HDFS-16403 > URL: https://issues.apache.org/jira/browse/HDFS-16403 > Project: Hadoop HDFS > Issue Type: Improvement > Components: fuse-dfs > Affects Versions: 3.3.0, 3.3.1 > Reporter: daimin > Assignee: daimin > Priority: Minor > Labels: pull-request-available > Time Spent: 3.5h > Remaining Estimate: 0h > > When we examining the FUSE IO performance on HDFS, we found that the > simultaneous IO requests number are limited to a fixed number, like 12. This > limitation makes the IO performance on FUSE client quite unacceptable. We did > some research on this and inspired by the article [Performance and Resource > Utilization of FUSE User-Space File > Systems|https://dl.acm.org/doi/fullHtml/10.1145/3310148], clearly the FUSE > parameter '{{{}max_background{}}}' decides the simultaneous IO requests > number, which is 12 by default. > We add 'max_background' to fuse_dfs mount options, the FUSE kernel will take > effect when an option value is given. -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org