[ https://issues.apache.org/jira/browse/HDFS-16403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wei-Chiu Chuang resolved HDFS-16403. ------------------------------------ Resolution: Fixed Thank you [~cndaimin] for the great work and the excellent performance test! Thanks [~pifta] for the code review. > 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 > Fix For: 3.4.0, 3.2.3, 3.3.3 > > 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-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org