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janveverka edited this page Nov 12, 2014 · 9 revisions

Merger Wiki

Welcome to the merger wiki!

Feature/Update Wish List

  • Make the processing of the Ecal and DQM streams independent from the rest. There is a number of options including:
    • Factor out transfers to the NFS areas at P5 to the transfer hook
  • Add support for monitoring of the total number of threads spawned
  • Use the thread pool for all the threads spawned, including the subsequent iterations over the input folders
  • Improve the latency of the merger after the start up. Possible solutions:
    • Only look at a configurable subset of runs
    • Ignore folders with runs that are complete, e.g. by checking for the presence of EoR
    • Automate cleaning up of closed runs
  • Add support for treating and/or logging theorized Lustre issues/hiccups
    • Measure the time the required by the various Lustre I/O operations. Log them if they take too long.
    • Spawn threads doing the Lustre I/O, time them, log them, and kill them if they take too long.
  • Add more info in the lock file to help find the BUs that (a) haven't written their piece yet, (b) don't release the lock:
    • Name of the BU holding the lock
    • Date and time of the update
  • Remove duplicated time stamps from the logs
  • Factor out the parsing of JSON filenames and files into a separate module
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