Title :
Recovery proxy for wireless applications
Author :
Yao, Bin ; Fuchs, W. Kent
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
A recovery proxy that implements proxy-based recovery is described in this paper Proxy-based recovery provides failure recovery for applications on connected handheld devices. This approach enables proxys to monitor clients´ interaction with back end servers and locally maintain a client´s state based on observed messages. The proxy described in this paper provides a general message logging mechanisms as well as an interface for applications to implement their own checkpointing and message analysis mechanisms. When a client moves from one proxy to another a migration protocol described in this paper can be used to efficiently transfer the client´s state and network connections to the new proxy. Experimental results on the proxy´s latency, throughput and client migration overhead are provided.
Keywords :
client-server systems; system recovery; wireless LAN; failure recovery; migration protocol; proxy-based recovery; recovery protocols; recovery proxy; Application software; Checkpointing; Computer crashes; Computerized monitoring; Condition monitoring; Delay; Network servers; Protocols; Throughput; Yarn;
Conference_Titel :
Software Reliability Engineering, 2001. ISSRE 2001. Proceedings. 12th International Symposium on
Print_ISBN :
0-7695-1306-9
DOI :
10.1109/ISSRE.2001.989464