@Generated(value="software.amazon.awssdk:codegen") public final class HealthCheckConfig extends Object implements ToCopyableBuilder<HealthCheckConfig.Builder,HealthCheckConfig>
A complex type that contains information about the health check.
Modifier and Type | Class and Description |
---|---|
static interface |
HealthCheckConfig.Builder |
Modifier and Type | Method and Description |
---|---|
AlarmIdentifier |
alarmIdentifier()
A complex type that identifies the CloudWatch alarm that you want Amazon Route 53 health checkers to use to
determine whether this health check is healthy.
|
static HealthCheckConfig.Builder |
builder() |
List<String> |
childHealthChecks()
(CALCULATED Health Checks Only) A complex type that contains one
ChildHealthCheck element for each
health check that you want to associate with a CALCULATED health check. |
Boolean |
enableSNI()
Specify whether you want Amazon Route 53 to send the value of
FullyQualifiedDomainName to the
endpoint in the client_hello message during TLS negotiation. |
boolean |
equals(Object obj) |
Integer |
failureThreshold()
The number of consecutive health checks that an endpoint must pass or fail for Amazon Route 53 to change the
current status of the endpoint from unhealthy to healthy or vice versa.
|
String |
fullyQualifiedDomainName()
Amazon Route 53 behavior depends on whether you specify a value for
IPAddress . |
<T> Optional<T> |
getValueForField(String fieldName,
Class<T> clazz) |
int |
hashCode() |
Integer |
healthThreshold()
The number of child health checks that are associated with a
CALCULATED health that Amazon Route 53
must consider healthy for the CALCULATED health check to be considered healthy. |
InsufficientDataHealthStatus |
insufficientDataHealthStatus()
When CloudWatch has insufficient data about the metric to determine the alarm state, the status that you want
Amazon Route 53 to assign to the health check:
|
String |
insufficientDataHealthStatusAsString()
When CloudWatch has insufficient data about the metric to determine the alarm state, the status that you want
Amazon Route 53 to assign to the health check:
|
Boolean |
inverted()
Specify whether you want Amazon Route 53 to invert the status of a health check, for example, to consider a
health check unhealthy when it otherwise would be considered healthy.
|
String |
ipAddress()
The IPv4 or IPv6 IP address of the endpoint that you want Amazon Route 53 to perform health checks on.
|
Boolean |
measureLatency()
Specify whether you want Amazon Route 53 to measure the latency between health checkers in multiple AWS regions
and your endpoint, and to display CloudWatch latency graphs on the Health Checks page in the Amazon Route
53 console.
|
Integer |
port()
The port on the endpoint on which you want Amazon Route 53 to perform health checks.
|
List<HealthCheckRegion> |
regions()
A complex type that contains one
Region element for each region from which you want Amazon Route 53
health checkers to check the specified endpoint. |
List<String> |
regionsAsStrings()
A complex type that contains one
Region element for each region from which you want Amazon Route 53
health checkers to check the specified endpoint. |
Integer |
requestInterval()
The number of seconds between the time that Amazon Route 53 gets a response from your endpoint and the time that
it sends the next health check request.
|
String |
resourcePath()
The path, if any, that you want Amazon Route 53 to request when performing health checks.
|
String |
searchString()
If the value of Type is
HTTP_STR_MATCH or HTTP_STR_MATCH , the string that you want
Amazon Route 53 to search for in the response body from the specified resource. |
static Class<? extends HealthCheckConfig.Builder> |
serializableBuilderClass() |
HealthCheckConfig.Builder |
toBuilder()
Take this object and create a builder that contains all of the current property values of this object.
|
String |
toString() |
HealthCheckType |
type()
The type of health check that you want to create, which indicates how Amazon Route 53 determines whether an
endpoint is healthy.
|
String |
typeAsString()
The type of health check that you want to create, which indicates how Amazon Route 53 determines whether an
endpoint is healthy.
|
copy
public String ipAddress()
The IPv4 or IPv6 IP address of the endpoint that you want Amazon Route 53 to perform health checks on. If you
don't specify a value for IPAddress
, Amazon Route 53 sends a DNS request to resolve the domain name
that you specify in FullyQualifiedDomainName
at the interval that you specify in
RequestInterval
. Using an IP address returned by DNS, Amazon Route 53 then checks the health of the
endpoint.
Use one of the following formats for the value of IPAddress
:
IPv4 address: four values between 0 and 255, separated by periods (.), for example,
192.0.2.44
.
IPv6 address: eight groups of four hexadecimal values, separated by colons (:), for example,
2001:0db8:85a3:0000:0000:abcd:0001:2345
. You can also shorten IPv6 addresses as described in RFC
5952, for example, 2001:db8:85a3::abcd:1:2345
.
If the endpoint is an EC2 instance, we recommend that you create an Elastic IP address, associate it with your
EC2 instance, and specify the Elastic IP address for IPAddress
. This ensures that the IP address of
your instance will never change.
For more information, see HealthCheckConfig$FullyQualifiedDomainName.
Constraints: Amazon Route 53 can't check the health of endpoints for which the IP address is in local, private, non-routable, or multicast ranges. For more information about IP addresses for which you can't create health checks, see the following documents:
When the value of Type
is CALCULATED
or CLOUDWATCH_METRIC
, omit
IPAddress
.
IPAddress
, Amazon Route 53 sends a DNS request to resolve the
domain name that you specify in FullyQualifiedDomainName
at the interval that you specify in
RequestInterval
. Using an IP address returned by DNS, Amazon Route 53 then checks the health
of the endpoint.
Use one of the following formats for the value of IPAddress
:
IPv4 address: four values between 0 and 255, separated by periods (.), for example,
192.0.2.44
.
IPv6 address: eight groups of four hexadecimal values, separated by colons (:), for example,
2001:0db8:85a3:0000:0000:abcd:0001:2345
. You can also shorten IPv6 addresses as described in
RFC 5952, for example, 2001:db8:85a3::abcd:1:2345
.
If the endpoint is an EC2 instance, we recommend that you create an Elastic IP address, associate it with
your EC2 instance, and specify the Elastic IP address for IPAddress
. This ensures that the
IP address of your instance will never change.
For more information, see HealthCheckConfig$FullyQualifiedDomainName.
Constraints: Amazon Route 53 can't check the health of endpoints for which the IP address is in local, private, non-routable, or multicast ranges. For more information about IP addresses for which you can't create health checks, see the following documents:
When the value of Type
is CALCULATED
or CLOUDWATCH_METRIC
, omit
IPAddress
.
public Integer port()
The port on the endpoint on which you want Amazon Route 53 to perform health checks. Specify a value for
Port
only when you specify a value for IPAddress
.
Port
only when you specify a value for IPAddress
.public HealthCheckType type()
The type of health check that you want to create, which indicates how Amazon Route 53 determines whether an endpoint is healthy.
You can't change the value of Type
after you create a health check.
You can create the following types of health checks:
HTTP: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53 submits an HTTP request and waits for an HTTP status code of 200 or greater and less than 400.
HTTPS: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53 submits an HTTPS request and waits for an HTTP status code of 200 or greater and less than 400.
If you specify HTTPS
for the value of Type
, the endpoint must support TLS v1.0 or
later.
HTTP_STR_MATCH: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53
submits an HTTP request and searches the first 5,120 bytes of the response body for the string that you specify
in SearchString
.
HTTPS_STR_MATCH: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53
submits an HTTPS
request and searches the first 5,120 bytes of the response body for the string that
you specify in SearchString
.
TCP: Amazon Route 53 tries to establish a TCP connection.
CLOUDWATCH_METRIC: The health check is associated with a CloudWatch alarm. If the state of the alarm is
OK
, the health check is considered healthy. If the state is ALARM
, the health check is
considered unhealthy. If CloudWatch doesn't have sufficient data to determine whether the state is
OK
or ALARM
, the health check status depends on the setting for
InsufficientDataHealthStatus
: Healthy
, Unhealthy
, or
LastKnownStatus
.
CALCULATED: For health checks that monitor the status of other health checks, Amazon Route 53 adds up the
number of health checks that Amazon Route 53 health checkers consider to be healthy and compares that number with
the value of HealthThreshold
.
For more information, see How Amazon Route 53 Determines Whether an Endpoint Is Healthy in the Amazon Route 53 Developer Guide.
If the service returns an enum value that is not available in the current SDK version, type
will return
HealthCheckType.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available from
typeAsString()
.
You can't change the value of Type
after you create a health check.
You can create the following types of health checks:
HTTP: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53 submits an HTTP request and waits for an HTTP status code of 200 or greater and less than 400.
HTTPS: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53 submits an HTTPS request and waits for an HTTP status code of 200 or greater and less than 400.
If you specify HTTPS
for the value of Type
, the endpoint must support TLS v1.0
or later.
HTTP_STR_MATCH: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route
53 submits an HTTP request and searches the first 5,120 bytes of the response body for the string that
you specify in SearchString
.
HTTPS_STR_MATCH: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route
53 submits an HTTPS
request and searches the first 5,120 bytes of the response body for the
string that you specify in SearchString
.
TCP: Amazon Route 53 tries to establish a TCP connection.
CLOUDWATCH_METRIC: The health check is associated with a CloudWatch alarm. If the state of the
alarm is OK
, the health check is considered healthy. If the state is ALARM
, the
health check is considered unhealthy. If CloudWatch doesn't have sufficient data to determine whether the
state is OK
or ALARM
, the health check status depends on the setting for
InsufficientDataHealthStatus
: Healthy
, Unhealthy
, or
LastKnownStatus
.
CALCULATED: For health checks that monitor the status of other health checks, Amazon Route 53 adds
up the number of health checks that Amazon Route 53 health checkers consider to be healthy and compares
that number with the value of HealthThreshold
.
For more information, see How Amazon Route 53 Determines Whether an Endpoint Is Healthy in the Amazon Route 53 Developer Guide.
HealthCheckType
public String typeAsString()
The type of health check that you want to create, which indicates how Amazon Route 53 determines whether an endpoint is healthy.
You can't change the value of Type
after you create a health check.
You can create the following types of health checks:
HTTP: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53 submits an HTTP request and waits for an HTTP status code of 200 or greater and less than 400.
HTTPS: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53 submits an HTTPS request and waits for an HTTP status code of 200 or greater and less than 400.
If you specify HTTPS
for the value of Type
, the endpoint must support TLS v1.0 or
later.
HTTP_STR_MATCH: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53
submits an HTTP request and searches the first 5,120 bytes of the response body for the string that you specify
in SearchString
.
HTTPS_STR_MATCH: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53
submits an HTTPS
request and searches the first 5,120 bytes of the response body for the string that
you specify in SearchString
.
TCP: Amazon Route 53 tries to establish a TCP connection.
CLOUDWATCH_METRIC: The health check is associated with a CloudWatch alarm. If the state of the alarm is
OK
, the health check is considered healthy. If the state is ALARM
, the health check is
considered unhealthy. If CloudWatch doesn't have sufficient data to determine whether the state is
OK
or ALARM
, the health check status depends on the setting for
InsufficientDataHealthStatus
: Healthy
, Unhealthy
, or
LastKnownStatus
.
CALCULATED: For health checks that monitor the status of other health checks, Amazon Route 53 adds up the
number of health checks that Amazon Route 53 health checkers consider to be healthy and compares that number with
the value of HealthThreshold
.
For more information, see How Amazon Route 53 Determines Whether an Endpoint Is Healthy in the Amazon Route 53 Developer Guide.
If the service returns an enum value that is not available in the current SDK version, type
will return
HealthCheckType.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available from
typeAsString()
.
You can't change the value of Type
after you create a health check.
You can create the following types of health checks:
HTTP: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53 submits an HTTP request and waits for an HTTP status code of 200 or greater and less than 400.
HTTPS: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route 53 submits an HTTPS request and waits for an HTTP status code of 200 or greater and less than 400.
If you specify HTTPS
for the value of Type
, the endpoint must support TLS v1.0
or later.
HTTP_STR_MATCH: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route
53 submits an HTTP request and searches the first 5,120 bytes of the response body for the string that
you specify in SearchString
.
HTTPS_STR_MATCH: Amazon Route 53 tries to establish a TCP connection. If successful, Amazon Route
53 submits an HTTPS
request and searches the first 5,120 bytes of the response body for the
string that you specify in SearchString
.
TCP: Amazon Route 53 tries to establish a TCP connection.
CLOUDWATCH_METRIC: The health check is associated with a CloudWatch alarm. If the state of the
alarm is OK
, the health check is considered healthy. If the state is ALARM
, the
health check is considered unhealthy. If CloudWatch doesn't have sufficient data to determine whether the
state is OK
or ALARM
, the health check status depends on the setting for
InsufficientDataHealthStatus
: Healthy
, Unhealthy
, or
LastKnownStatus
.
CALCULATED: For health checks that monitor the status of other health checks, Amazon Route 53 adds
up the number of health checks that Amazon Route 53 health checkers consider to be healthy and compares
that number with the value of HealthThreshold
.
For more information, see How Amazon Route 53 Determines Whether an Endpoint Is Healthy in the Amazon Route 53 Developer Guide.
HealthCheckType
public String resourcePath()
The path, if any, that you want Amazon Route 53 to request when performing health checks. The path can be any value for which your endpoint will return an HTTP status code of 2xx or 3xx when the endpoint is healthy, for example, the file /docs/route53-health-check.html.
public String fullyQualifiedDomainName()
Amazon Route 53 behavior depends on whether you specify a value for IPAddress
.
If you specify a value for IPAddress
:
Amazon Route 53 sends health check requests to the specified IPv4 or IPv6 address and passes the value of
FullyQualifiedDomainName
in the Host
header for all health checks except TCP health
checks. This is typically the fully qualified DNS name of the endpoint on which you want Amazon Route 53 to
perform health checks.
When Amazon Route 53 checks the health of an endpoint, here is how it constructs the Host
header:
If you specify a value of 80
for Port
and HTTP
or
HTTP_STR_MATCH
for Type
, Amazon Route 53 passes the value of
FullyQualifiedDomainName
to the endpoint in the Host header.
If you specify a value of 443
for Port
and HTTPS
or
HTTPS_STR_MATCH
for Type
, Amazon Route 53 passes the value of
FullyQualifiedDomainName
to the endpoint in the Host
header.
If you specify another value for Port
and any value except TCP
for Type
,
Amazon Route 53 passes FullyQualifiedDomainName:Port
to the endpoint in the Host
header.
If you don't specify a value for FullyQualifiedDomainName
, Amazon Route 53 substitutes the value of
IPAddress
in the Host
header in each of the preceding cases.
If you don't specify a value for IPAddress
:
Amazon Route 53 sends a DNS request to the domain that you specify for FullyQualifiedDomainName
at
the interval that you specify for RequestInterval
. Using an IPv4 address that DNS returns, Amazon
Route 53 then checks the health of the endpoint.
If you don't specify a value for IPAddress
, Amazon Route 53 uses only IPv4 to send health checks to
the endpoint. If there's no resource record set with a type of A for the name that you specify for
FullyQualifiedDomainName
, the health check fails with a "DNS resolution failed" error.
If you want to check the health of weighted, latency, or failover resource record sets and you choose to specify
the endpoint only by FullyQualifiedDomainName
, we recommend that you create a separate health check
for each endpoint. For example, create a health check for each HTTP server that is serving content for
www.example.com. For the value of FullyQualifiedDomainName
, specify the domain name of the server
(such as us-east-2-www.example.com), not the name of the resource record sets (www.example.com).
In this configuration, if you create a health check for which the value of FullyQualifiedDomainName
matches the name of the resource record sets and you then associate the health check with those resource record
sets, health check results will be unpredictable.
In addition, if the value that you specify for Type
is HTTP
, HTTPS
,
HTTP_STR_MATCH
, or HTTPS_STR_MATCH
, Amazon Route 53 passes the value of
FullyQualifiedDomainName
in the Host
header, as it does when you specify a value for
IPAddress
. If the value of Type
is TCP
, Amazon Route 53 doesn't pass a
Host
header.
IPAddress
.
If you specify a value for IPAddress
:
Amazon Route 53 sends health check requests to the specified IPv4 or IPv6 address and passes the value of
FullyQualifiedDomainName
in the Host
header for all health checks except TCP
health checks. This is typically the fully qualified DNS name of the endpoint on which you want Amazon
Route 53 to perform health checks.
When Amazon Route 53 checks the health of an endpoint, here is how it constructs the Host
header:
If you specify a value of 80
for Port
and HTTP
or
HTTP_STR_MATCH
for Type
, Amazon Route 53 passes the value of
FullyQualifiedDomainName
to the endpoint in the Host header.
If you specify a value of 443
for Port
and HTTPS
or
HTTPS_STR_MATCH
for Type
, Amazon Route 53 passes the value of
FullyQualifiedDomainName
to the endpoint in the Host
header.
If you specify another value for Port
and any value except TCP
for
Type
, Amazon Route 53 passes FullyQualifiedDomainName:Port
to the endpoint in
the Host
header.
If you don't specify a value for FullyQualifiedDomainName
, Amazon Route 53 substitutes the
value of IPAddress
in the Host
header in each of the preceding cases.
If you don't specify a value for IPAddress
:
Amazon Route 53 sends a DNS request to the domain that you specify for
FullyQualifiedDomainName
at the interval that you specify for RequestInterval
.
Using an IPv4 address that DNS returns, Amazon Route 53 then checks the health of the endpoint.
If you don't specify a value for IPAddress
, Amazon Route 53 uses only IPv4 to send health
checks to the endpoint. If there's no resource record set with a type of A for the name that you specify
for FullyQualifiedDomainName
, the health check fails with a "DNS resolution failed" error.
If you want to check the health of weighted, latency, or failover resource record sets and you choose to
specify the endpoint only by FullyQualifiedDomainName
, we recommend that you create a
separate health check for each endpoint. For example, create a health check for each HTTP server that is
serving content for www.example.com. For the value of FullyQualifiedDomainName
, specify the
domain name of the server (such as us-east-2-www.example.com), not the name of the resource record sets
(www.example.com).
In this configuration, if you create a health check for which the value of
FullyQualifiedDomainName
matches the name of the resource record sets and you then associate
the health check with those resource record sets, health check results will be unpredictable.
In addition, if the value that you specify for Type
is HTTP
, HTTPS
, HTTP_STR_MATCH
, or HTTPS_STR_MATCH
, Amazon Route 53 passes the value of
FullyQualifiedDomainName
in the Host
header, as it does when you specify a
value for IPAddress
. If the value of Type
is TCP
, Amazon Route 53
doesn't pass a Host
header.
public String searchString()
If the value of Type is HTTP_STR_MATCH
or HTTP_STR_MATCH
, the string that you want
Amazon Route 53 to search for in the response body from the specified resource. If the string appears in the
response body, Amazon Route 53 considers the resource healthy.
Amazon Route 53 considers case when searching for SearchString
in the response body.
HTTP_STR_MATCH
or HTTP_STR_MATCH
, the string that you
want Amazon Route 53 to search for in the response body from the specified resource. If the string
appears in the response body, Amazon Route 53 considers the resource healthy.
Amazon Route 53 considers case when searching for SearchString
in the response body.
public Integer requestInterval()
The number of seconds between the time that Amazon Route 53 gets a response from your endpoint and the time that it sends the next health check request. Each Amazon Route 53 health checker makes requests at this interval.
You can't change the value of RequestInterval
after you create a health check.
If you don't specify a value for RequestInterval
, the default value is 30
seconds.
You can't change the value of RequestInterval
after you create a health check.
If you don't specify a value for RequestInterval
, the default value is 30
seconds.
public Integer failureThreshold()
The number of consecutive health checks that an endpoint must pass or fail for Amazon Route 53 to change the current status of the endpoint from unhealthy to healthy or vice versa. For more information, see How Amazon Route 53 Determines Whether an Endpoint Is Healthy in the Amazon Route 53 Developer Guide.
If you don't specify a value for FailureThreshold
, the default value is three health checks.
If you don't specify a value for FailureThreshold
, the default value is three health checks.
public Boolean measureLatency()
Specify whether you want Amazon Route 53 to measure the latency between health checkers in multiple AWS regions and your endpoint, and to display CloudWatch latency graphs on the Health Checks page in the Amazon Route 53 console.
You can't change the value of MeasureLatency
after you create a health check.
You can't change the value of MeasureLatency
after you create a health check.
public Boolean inverted()
Specify whether you want Amazon Route 53 to invert the status of a health check, for example, to consider a health check unhealthy when it otherwise would be considered healthy.
public Integer healthThreshold()
The number of child health checks that are associated with a CALCULATED
health that Amazon Route 53
must consider healthy for the CALCULATED
health check to be considered healthy. To specify the child
health checks that you want to associate with a CALCULATED
health check, use the
HealthCheckConfig$ChildHealthChecks and HealthCheckConfig$ChildHealthChecks elements.
Note the following:
If you specify a number greater than the number of child health checks, Amazon Route 53 always considers this health check to be unhealthy.
If you specify 0
, Amazon Route 53 always considers this health check to be healthy.
CALCULATED
health that Amazon
Route 53 must consider healthy for the CALCULATED
health check to be considered healthy. To
specify the child health checks that you want to associate with a CALCULATED
health check,
use the HealthCheckConfig$ChildHealthChecks and HealthCheckConfig$ChildHealthChecks
elements.
Note the following:
If you specify a number greater than the number of child health checks, Amazon Route 53 always considers this health check to be unhealthy.
If you specify 0
, Amazon Route 53 always considers this health check to be healthy.
public List<String> childHealthChecks()
(CALCULATED Health Checks Only) A complex type that contains one ChildHealthCheck
element for each
health check that you want to associate with a CALCULATED
health check.
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
ChildHealthCheck
element
for each health check that you want to associate with a CALCULATED
health check.public Boolean enableSNI()
Specify whether you want Amazon Route 53 to send the value of FullyQualifiedDomainName
to the
endpoint in the client_hello
message during TLS negotiation. This allows the endpoint to respond to
HTTPS
health check requests with the applicable SSL/TLS certificate.
Some endpoints require that HTTPS
requests include the host name in the client_hello
message. If you don't enable SNI, the status of the health check will be SSL alert handshake_failure
. A health check can also have that status for other reasons. If SNI is enabled and you're still getting the
error, check the SSL/TLS configuration on your endpoint and confirm that your certificate is valid.
The SSL/TLS certificate on your endpoint includes a domain name in the Common Name
field and
possibly several more in the Subject Alternative Names
field. One of the domain names in the
certificate should match the value that you specify for FullyQualifiedDomainName
. If the endpoint
responds to the client_hello
message with a certificate that does not include the domain name that
you specified in FullyQualifiedDomainName
, a health checker will retry the handshake. In the second
attempt, the health checker will omit FullyQualifiedDomainName
from the client_hello
message.
FullyQualifiedDomainName
to
the endpoint in the client_hello
message during TLS negotiation. This allows the endpoint to
respond to HTTPS
health check requests with the applicable SSL/TLS certificate.
Some endpoints require that HTTPS
requests include the host name in the
client_hello
message. If you don't enable SNI, the status of the health check will be
SSL alert handshake_failure
. A health check can also have that status for other reasons. If
SNI is enabled and you're still getting the error, check the SSL/TLS configuration on your endpoint and
confirm that your certificate is valid.
The SSL/TLS certificate on your endpoint includes a domain name in the Common Name
field and
possibly several more in the Subject Alternative Names
field. One of the domain names in the
certificate should match the value that you specify for FullyQualifiedDomainName
. If the
endpoint responds to the client_hello
message with a certificate that does not include the
domain name that you specified in FullyQualifiedDomainName
, a health checker will retry the
handshake. In the second attempt, the health checker will omit FullyQualifiedDomainName
from
the client_hello
message.
public List<HealthCheckRegion> regions()
A complex type that contains one Region
element for each region from which you want Amazon Route 53
health checkers to check the specified endpoint.
If you don't specify any regions, Amazon Route 53 health checkers automatically performs checks from all of the regions that are listed under Valid Values.
If you update a health check to remove a region that has been performing health checks, Amazon Route 53 will briefly continue to perform checks from that region to ensure that some health checkers are always checking the endpoint (for example, if you replace three regions with four different regions).
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
Region
element for each region from which you want Amazon
Route 53 health checkers to check the specified endpoint.
If you don't specify any regions, Amazon Route 53 health checkers automatically performs checks from all of the regions that are listed under Valid Values.
If you update a health check to remove a region that has been performing health checks, Amazon Route 53 will briefly continue to perform checks from that region to ensure that some health checkers are always checking the endpoint (for example, if you replace three regions with four different regions).
public List<String> regionsAsStrings()
A complex type that contains one Region
element for each region from which you want Amazon Route 53
health checkers to check the specified endpoint.
If you don't specify any regions, Amazon Route 53 health checkers automatically performs checks from all of the regions that are listed under Valid Values.
If you update a health check to remove a region that has been performing health checks, Amazon Route 53 will briefly continue to perform checks from that region to ensure that some health checkers are always checking the endpoint (for example, if you replace three regions with four different regions).
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
Region
element for each region from which you want Amazon
Route 53 health checkers to check the specified endpoint.
If you don't specify any regions, Amazon Route 53 health checkers automatically performs checks from all of the regions that are listed under Valid Values.
If you update a health check to remove a region that has been performing health checks, Amazon Route 53 will briefly continue to perform checks from that region to ensure that some health checkers are always checking the endpoint (for example, if you replace three regions with four different regions).
public AlarmIdentifier alarmIdentifier()
A complex type that identifies the CloudWatch alarm that you want Amazon Route 53 health checkers to use to determine whether this health check is healthy.
public InsufficientDataHealthStatus insufficientDataHealthStatus()
When CloudWatch has insufficient data about the metric to determine the alarm state, the status that you want Amazon Route 53 to assign to the health check:
Healthy
: Amazon Route 53 considers the health check to be healthy.
Unhealthy
: Amazon Route 53 considers the health check to be unhealthy.
LastKnownStatus
: Amazon Route 53 uses the status of the health check from the last time that
CloudWatch had sufficient data to determine the alarm state. For new health checks that have no last known
status, the default status for the health check is healthy.
If the service returns an enum value that is not available in the current SDK version,
insufficientDataHealthStatus
will return InsufficientDataHealthStatus.UNKNOWN_TO_SDK_VERSION
.
The raw value returned by the service is available from insufficientDataHealthStatusAsString()
.
Healthy
: Amazon Route 53 considers the health check to be healthy.
Unhealthy
: Amazon Route 53 considers the health check to be unhealthy.
LastKnownStatus
: Amazon Route 53 uses the status of the health check from the last time that
CloudWatch had sufficient data to determine the alarm state. For new health checks that have no last
known status, the default status for the health check is healthy.
InsufficientDataHealthStatus
public String insufficientDataHealthStatusAsString()
When CloudWatch has insufficient data about the metric to determine the alarm state, the status that you want Amazon Route 53 to assign to the health check:
Healthy
: Amazon Route 53 considers the health check to be healthy.
Unhealthy
: Amazon Route 53 considers the health check to be unhealthy.
LastKnownStatus
: Amazon Route 53 uses the status of the health check from the last time that
CloudWatch had sufficient data to determine the alarm state. For new health checks that have no last known
status, the default status for the health check is healthy.
If the service returns an enum value that is not available in the current SDK version,
insufficientDataHealthStatus
will return InsufficientDataHealthStatus.UNKNOWN_TO_SDK_VERSION
.
The raw value returned by the service is available from insufficientDataHealthStatusAsString()
.
Healthy
: Amazon Route 53 considers the health check to be healthy.
Unhealthy
: Amazon Route 53 considers the health check to be unhealthy.
LastKnownStatus
: Amazon Route 53 uses the status of the health check from the last time that
CloudWatch had sufficient data to determine the alarm state. For new health checks that have no last
known status, the default status for the health check is healthy.
InsufficientDataHealthStatus
public HealthCheckConfig.Builder toBuilder()
ToCopyableBuilder
toBuilder
in interface ToCopyableBuilder<HealthCheckConfig.Builder,HealthCheckConfig>
public static HealthCheckConfig.Builder builder()
public static Class<? extends HealthCheckConfig.Builder> serializableBuilderClass()
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