Gets and sets the property MetricName.
The metric about which you are receiving information. Valid values are listed below,
along with the most useful statistics
to include in your request.

ClientTLSNegotiationErrorCount
 The number of TLS connections
initiated by the client that did not establish a session with the load balancer. Possible
causes include a mismatch of ciphers or protocols.
Statistics
: The most useful statistic is Sum
.

HealthyHostCount
 The number of target instances that are
considered healthy.
Statistics
: The most useful statistic are Average
, Minimum
,
and Maximum
.

UnhealthyHostCount
 The number of target instances that are
considered unhealthy.
Statistics
: The most useful statistic are Average
, Minimum
,
and Maximum
.

HTTPCode_LB_4XX_Count
 The number of HTTP 4XX client error
codes that originate from the load balancer. Client errors are generated when requests
are malformed or incomplete. These requests have not been received by the target instance.
This count does not include any response codes generated by the target instances.
Statistics
: The most useful statistic is Sum
. Note that
Minimum
, Maximum
, and Average
all return 1
.

HTTPCode_LB_5XX_Count
 The number of HTTP 5XX server error
codes that originate from the load balancer. This count does not include any response
codes generated by the target instances.
Statistics
: The most useful statistic is Sum
. Note that
Minimum
, Maximum
, and Average
all return 1
.
Note that Minimum
, Maximum
, and Average
all
return 1
.

HTTPCode_Instance_2XX_Count
 The number of HTTP response codes
generated by the target instances. This does not include any response codes generated
by the load balancer.
Statistics
: The most useful statistic is Sum
. Note that
Minimum
, Maximum
, and Average
all return 1
.

HTTPCode_Instance_3XX_Count
 The number of HTTP response codes
generated by the target instances. This does not include any response codes generated
by the load balancer.
Statistics
: The most useful statistic is Sum
. Note that
Minimum
, Maximum
, and Average
all return 1
.

HTTPCode_Instance_4XX_Count
 The number of HTTP response codes
generated by the target instances. This does not include any response codes generated
by the load balancer.
Statistics
: The most useful statistic is Sum
. Note that
Minimum
, Maximum
, and Average
all return 1
.

HTTPCode_Instance_5XX_Count
 The number of HTTP response codes
generated by the target instances. This does not include any response codes generated
by the load balancer.
Statistics
: The most useful statistic is Sum
. Note that
Minimum
, Maximum
, and Average
all return 1
.

InstanceResponseTime
 The time elapsed, in seconds, after
the request leaves the load balancer until a response from the target instance is
received.
Statistics
: The most useful statistic is Average
.

RejectedConnectionCount
 The number of connections that were
rejected because the load balancer had reached its maximum number of connections.
Statistics
: The most useful statistic is Sum
.

RequestCount
 The number of requests processed over IPv4.
This count includes only the requests with a response generated by a target instance
of the load balancer.
Statistics
: The most useful statistic is Sum
. Note that
Minimum
, Maximum
, and Average
all return 1
.