Labios

LABIOS, a new, distributed, scalable, and adaptive I/O System. LABIOS is the first LAbel-Based I/O System, is fully decoupled, and is intended to grow in the intersection of HPC and BigData.

Installation

We use spack for installing labios

spack install labios

Deployment

jarvis labios scaffold default
jarvis labios init
jarvis labios start
jarvis labios stop

TODO LIST

Future

• Task dependecies (don't care)
• Metadata persistent store (flush at the end)
• Automated server bootstrapping
• Investigate read simulation
• Handle MDM for outstanding operations (data in transit)
  • Discuss how important is this issue of decoupled components
  • Possible fixes:
    • Invalidation lists + timer expiration to cleanup
    • Intermediate state of data in MDM

Notes

• Timeout task scheduling. line#66
• check the usleep in task scheduler-> infinite looping
• Aggregating logs cat ts_* >> ts.csv
• Printing correctly std::stringstream stream; // #include <sstream> for this stream << 1 << 2 << 3; std::cout << stream.str();