Page 968 - Cloud computing: From paradigm to operation

6 Monitoring

See Table 7-14.

Table 7-14 – Parameters collected for monitoring web service performance

Metric name Description Unit

Number of service request that a web service can
throughput request/s
complete in a given period of time
Number of new connection users servicing per
users user/s
second
Average number of transactions processed per
transactions per second transaction/s
second
Number of new transmission control protocol (TCP)
connection rate link/s
connections setting up per second
The time duration from receiving the request to the
response time web service to sending the response from the web ms
service
round trip time Time from sending SYN to receiving SYN ACK ms
TCP setting up time Average time of TCP link setting up
Number of TCP connections setting up between
simultaneous connections link/s
client and server
cumulative transactions Total number of transactions processing processed transaction

7.3 Access layer parameters

Principally, access control involves the authentication of a user through the presentation and validation of
credentials, followed by the authorization of this authenticated user to use specific services. Associated with
this is identity management. Access behaviour and management events should be monitored for the access
layer.

960