Tomohiro Misono
Linux Developer at Fujitsu
Japan
Summary
👤
Senior🎓
Top SchoolTomohiro Misono is a Linux developer with eight years of experience building and hardening kernel subsystems, filesystems, and device drivers at Fujitsu. He holds a Master's in Computer Science from Tokyo Institute of Technology and focuses on reliability and data integrity in production storage stacks. An active contributor to the Ceph project, he’s fixed tricky readdir/backfill bugs, removed dead PeeringState code, and resolved null-pointer and tracing-related issues—work that improves robustness in a widely used distributed storage platform. Based in Japan, he blends deep systems-level debugging with pragmatic engineering, often surfacing non-obvious edge cases that prevent data loss in complex storage workflows.
8 years of coding experience
Master of Engineering - MEng, Computer Science, Master of Engineering - MEng, Computer Science at Tokyo Institute of Technology
Github Skills (19)
debugging10
debug10
filesystem10
c-language10
back-end-development10
storage10
distributed-systems10
error-handling10
cprogramming-language10
tracer9
bash9
block-storage9
object-store9
trace9
distributed-file-system9
Programming languages (7)
Github contributions (5)
ceph/ceph
Apr 2021 - Jun 2021
Ceph is a distributed object, block, and file storage platform
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 reviews, 9 commits, 6 PRs in 1 month
Contributions summary:Tomohiro primarily contributed to the Ceph distributed storage platform by fixing bugs and improving the robustness of the code. They addressed readdir errors in the FileStore and LFNIndex modules, enhancing data integrity during backfill operations. Additionally, the user cleaned up dead code in the PeeringState module and fixed a null pointer dereference issue within the ECBackend component related to jaeger tracing, ensuring more stable and efficient operations. The user also updated the vstart script for podman detection and made improvements to the documentation regarding tracing.
fusefile-storagecephstorageopenebs
t-msn/dotfiles
Dec 2017 - Jun 2023
Contributions:21 pushes, 2 branches in 5 years 6 months
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