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SCHEDULE: NOV 16-21, 2014
When viewing the Technical Program schedule, on the far righthand side is a column labeled "PLANNER." Use this planner to build your own schedule. Once you select an event and want to add it to your personal schedule, just click on the calendar icon of your choice (outlook calendar, ical calendar or google calendar) and that event will be stored there. As you select events in this manner, you will have your own schedule to guide you through the week.
Fast Storage for File System Metadata
SESSION: Doctoral Showcase - Dissertation Research I
EVENT TYPE: Doctoral Showcase
TIME: 10:30AM - 10:45AM
SESSION CHAIR: Karen L. Karavanic
Presenter(s):Kai Ren
ROOM:386-87
ABSTRACT:
Conventional distributed have used centralized single-node metadata services. However, the single-node metadata server design inherently limits the scalability of the file system in terms of the number of stored objects and concurrent accesses to the file system expected by massive parallel applications. Inefficient on-disk metadata representation also limits the metadata performance. To tackle these challenges, I implemented a middleware called IndexFS that can be layered on top of existing file systems and improve their metadata performance. IndexFS uses a tabular-based architecture that incrementally partitions the namespace on a per- directory basis, preserving server and disk locality for small directories. An optimized log-structured layout is used to store metadata and small files efficiently. Several caching techniques are also used to mitigate hot spots. By combining these techniques, IndexFS can improve the metadata performance of existing distributed file systems by as much as an order of magnitude for various metadata workloads.
Chair/Presenter Details:
Karen L. Karavanic (Chair) - Portland State University
Kai Ren - Carnegie Mellon University
Click here to download .ics calendar file
