| Priority
|
Short Name
|
Description
|
Estimation (ppl-day)
|
Owner
|
| Medium |
Disk Access Scheduler and Data Piece Buffer Replacement Algorithm |
Replacement algorithms, for data piece buffer in memory, that concurrently minimize disk access time are critical to our system performance. Current data buffer and disk access design does not consider disk access time, and may lead to un-necessary delay due to random seek operations. |
5 |
Not-assigned
|
| Medium |
File Integrity |
pCDN client shall store downloaded contents into several chucks, where each chuck should support data integrity check that may be integrated with DRM modules in the future. |
5 |
Not-assigned
|
| Low |
Efficient I/O Channels |
Both disk access and httpd server should be updated with the Java NIO APIs for higher transfer rates. We also want to explore different piece size for higher disk throughput. |
4 |
Not-assigned
|
| High |
Timeout Inactive Peers |
Current pCDN clients send Join messages at initialization time and Leave messages before exiting. The Leave messages, however, are not guaranteed to be received by pCDN server. pCDN server needs to either timeout those inactive pCDN clients or occasionally ping clients to remove those non-existing clients. The heartbeat messages may be re-used for this purpose. |
1 |
Not-assigned
|
| High |
Geolocation-aware Peer Matching Algorithm |
Another peer-matching algorithm to increase transfer rates. |
1.5 |
Not-assigned
|
|
Raw Socket on Planetlab Nodes |
Current network probing module requires root privilege and works on Windows and Linux. It, however, does not work on Planetlab's patched Linux yet. This is because Planetlab Linux needs yet another set of (other than Windows and Linux) Raw Socket API. |
.5 |
Not-assigned
|
| High |
Support client to server hop distance measurements |
pCDN server should listen to the PROBE PORT and response to the UDP response messages. pCDN client needs to probe the server when joining the network. |
.6 |
Not-assigned
|
| High |
Control message amount should be logged at pCDN server |
pCDN server should log the amount of control messages that has been sent/received. |
.4 |
Not-assigned
|
| High |
Auto Update |
On-line update mechanism to automatically download software patch |
3 |
Not-assigned
|
| High |
Runs as Windows Service |
pCDN server should be able to run as a service. A installer or installation batch file should be provided |
1 |
Not-assigned
|
| High |
Repackage |
pCDN server installer shall include linkes to importer, monitor. It shall also include the database file and readme file to guide sysadm through the database setup. |
.5 |
Not-assigned
|
| High |
New Version Available Message |
pCDN client shall check whether any new update is available at init time and every 24 hrs. It should show a tray balloon to remind users to upgrade. |
.3 |
Not-assigned
|
