2026-09-19T03:22:49Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/108145 2023-07-11 col_2142_5131 col_2142_10761 com_2142_5130 com_2142_10755 com_2142_234

Snir, Marc Sun, Jinghan 2020-08-26T23:58:35Z 2020-08-26T23:58:35Z 2022-08-26T23:58:55Z 2020-05-13 2020-05 Parallel file systems (PFS’es) and parallel I/O libraries have been the backbone of high- performance computing (HPC) infrastructures for decades. However, their crash consistency bugs have not been extensively studied, and bug-finding or testing tools for identifying them are lacking. In this dissertation, we developed a generic testing system PFSCheck to study crash consistency bugs on popular PFS’es, such as BeeGFS and OrangeFS, with a cross-stack approach that covers HPC I/O library, PFS, and their interactions with local file systems. We evaluated the crash vulnerabilities of common HPC workloads and the evaluation results show that PFS’es and I/O libraries suffer from more crash consistency bugs than regular file systems due to the scale and complexity of the I/O stack. Local file system configurations such as journaling mode and the choice of consistency checker also influence the discovered vulnerability pattern. Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-05-01 The student, Jinghan Sun, accepted the attached license on 2020-05-12 at 17:29. The student, Jinghan Sun, submitted this Thesis for approval on 2020-05-12 at 17:35. This Thesis was approved for publication on 2020-05-13 at 10:52. DSpace SAF Submission Ingestion Package generated from Vireo submission #15167 on 2020-08-25 at 17:29:25 Made available in DSpace on 2020-08-26T23:58:35Z (GMT). No. of bitstreams: 2 SUN-THESIS-2020.pdf: 2702656 bytes, checksum: 3456cad5134f4fa3f32c3b349bded810 (MD5) LICENSE.txt: 4208 bytes, checksum: f3dc639a19a7af5e4f651412d26f76a5 (MD5) Previous issue date: 2020-05-13 Embargo set by: Seth Robbins for item 115758 Lift date: 2022-08-26T23:58:55Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only application/pdf http://hdl.handle.net/2142/108145 en Copyright 2020 Jinghan Sun Parallel File System Crash Consistency Bug identification High Performance Computing Detecting and understanding crash-consistency bugs across the parallel I/O stack text Thesis Computer Science Computer Science University of Illinois at Urbana-Champaign Thesis M.S.