Chung-Yu (Craig) Chi

Currently, a Software Engineering Intern at and a master’s student major in CS at the University of California, Irvine. Before this, I was a senior product developer at Cloud Service Team in Synology Inc., Taipei, and also one of the creators of Synology C2 cloud platform and Synology Hybrid Share.

I have -

• Solid skills in C/C++, Go, python, shell scripting, and Linux system programming
• Expertise in cloud computing, especially Docker, OpenStack, and Ceph storage cluster
• Interest in analyzing and optimizing systems performance of complex applications
• Enthusiasm for building and operating large scale cloud platform
• Experience of designing, analyzing, and implementing distributed cloud file systems

This is my favorite sentence:

The more you give, the more you receive.

My footprints on the Internet

Internship Project

• gVisor at Google: An application kernel for containers that provides efficient defense-in-depth security.
  • Develop highly-concurrent Filesystem in Userspace (FUSE) kernel with Go.
  • Design an original integration test framework for supported Linux file operation system calls.

My Most Forked or Starred Projects

• parse_smaps: Handy Python script to parse Linux smaps file into human readable format.
• MoFREAK_Hardware: A hardware-friendly real-time human action recognition system.

Mails about Ceph

• High OSD apply latency right after new year (the leap second?)
• Ceph OSDs cause kernel unresponsive
• how possible is that ceph cluster crash
• RBD lost parents after rados cppool
• ceph-mon not starting on system startup (Ubuntu 16.04 / systemd)
• Ceph - Health and Monitoring
• Migrating data from a Ceph clusters to another
• pg stuck in peering while power failure
• permission denied on journal after reboot
• How to start/restart osd and mon manually (not by init script or systemd)
• Wrong pg count when pg number is large

Open Sources Commits

• google/gVisor: Internship project
• libfuse/libfuse: docs: Replace mesonconf with meson configure
• ceph/ceph: ceph-disk prepare get wrong group name in bluestore
• digitalocean/ceph_exporter: osd: fix parsing invalid json produced by Ceph …
• digitalocean/ceph_exporter: health: add slow requests
• digitalocean/ceph_exporter: health: add scrubbing and deep-scrubbing pgs
• dnaeon/go-vcr: Add nil check in Custom Request Matching section of README.md

Open Sources Issues

• varnish/hitch: chroot and reload daemon action
• ansible/ansible: ERROR! A worker was found in a dead state
• go-testfixtures/testfixtures: Can’t correctly load binary data from generated yml file