java.lang.Object
- software.amazon.awssdk.core.metrics.CoreMetric

@SdkPublicApi
public final class CoreMetric
extends Object

Field Summary

Fields
Modifier and Type	Field	Description
`static SdkMetric<Duration>`	`API_CALL_DURATION`	The duration of the API call.
`static SdkMetric<Boolean>`	`API_CALL_SUCCESSFUL`	True if the API call succeeded, false otherwise.
`static SdkMetric<String>`	`AWS_EXTENDED_REQUEST_ID`	The extended request ID of the service request.
`static SdkMetric<String>`	`AWS_REQUEST_ID`	The request ID of the service request.
`static SdkMetric<Duration>`	`BACKOFF_DELAY_DURATION`	The duration of time that the SDK has waited before this API call attempt, based on the `RetryPolicy.backoffStrategy()`.
`static SdkMetric<Duration>`	`CREDENTIALS_FETCH_DURATION`	The duration of time taken to fetch signing credentials for the API call.
`static SdkMetric<Duration>`	`ENDPOINT_RESOLVE_DURATION`	The duration of time it took to resolve the endpoint used for the API call.
`static SdkMetric<String>`	`ERROR_TYPE`	The type of error that occurred for a call attempt.
`static SdkMetric<Duration>`	`MARSHALLING_DURATION`	The duration of time taken to marshall the SDK request to an HTTP request.
`static SdkMetric<String>`	`OPERATION_NAME`	The name of the service operation being invoked.
`static SdkMetric<Double>`	`READ_THROUGHPUT`	The read throughput of the client, defined as `NumberOfResponseBytesRead / (TTLB - TTFB)`.
`static SdkMetric<Integer>`	`RETRY_COUNT`	The number of retries that the SDK performed in the execution of the request.
`static SdkMetric<Duration>`	`SERVICE_CALL_DURATION`	The duration of time taken to connect to the service (or acquire a connection from the connection pool), send the serialized request and receive the initial response (e.g.
`static SdkMetric<URI>`	`SERVICE_ENDPOINT`	The endpoint for the service.
`static SdkMetric<String>`	`SERVICE_ID`	The unique ID for the service.
`static SdkMetric<Duration>`	`SIGNING_DURATION`	The duration of time taken to sign the HTTP request.
`static SdkMetric<Duration>`	`TIME_TO_FIRST_BYTE`	The duration of time between from sending the HTTP request (including acquiring a connection) to the service, and receiving the first byte of the headers in the response.
`static SdkMetric<Duration>`	`TIME_TO_LAST_BYTE`	The duration of time between from sending the HTTP request (including acquiring a connection) to the service, and receiving the last byte of the response.
`static SdkMetric<Duration>`	`TOKEN_FETCH_DURATION`	The duration of time taken to fetch signing credentials for the API call.
`static SdkMetric<Duration>`	`UNMARSHALLING_DURATION`	The duration of time taken to unmarshall the HTTP response to an SDK response.

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - SERVICE_ID
```
public static final SdkMetric<String> SERVICE_ID
```
    The unique ID for the service. This is present for all API call metrics.
  - OPERATION_NAME
```
public static final SdkMetric<String> OPERATION_NAME
```
    The name of the service operation being invoked. This is present for all API call metrics.
  - API_CALL_SUCCESSFUL
```
public static final SdkMetric<Boolean> API_CALL_SUCCESSFUL
```
    True if the API call succeeded, false otherwise.
  - RETRY_COUNT
```
public static final SdkMetric<Integer> RETRY_COUNT
```
    The number of retries that the SDK performed in the execution of the request. 0 implies that the request worked the first time, and no retries were attempted.
  - SERVICE_ENDPOINT
```
public static final SdkMetric<URI> SERVICE_ENDPOINT
```
    The endpoint for the service.
  - API_CALL_DURATION
```
public static final SdkMetric<Duration> API_CALL_DURATION
```
    The duration of the API call. This includes all call attempts made.
    API_CALL_DURATION ~= CREDENTIALS_FETCH_DURATION + MARSHALLING_DURATION + SUM_ALL(BACKOFF_DELAY_DURATION) + SUM_ALL(SIGNING_DURATION) + SUM_ALL(SERVICE_CALL_DURATION) + SUM_ALL(UNMARSHALLING_DURATION)
  - CREDENTIALS_FETCH_DURATION
```
public static final SdkMetric<Duration> CREDENTIALS_FETCH_DURATION
```
    The duration of time taken to fetch signing credentials for the API call.
  - TOKEN_FETCH_DURATION
```
public static final SdkMetric<Duration> TOKEN_FETCH_DURATION
```
    The duration of time taken to fetch signing credentials for the API call.
  - BACKOFF_DELAY_DURATION
```
public static final SdkMetric<Duration> BACKOFF_DELAY_DURATION
```
    The duration of time that the SDK has waited before this API call attempt, based on the RetryPolicy.backoffStrategy().
  - MARSHALLING_DURATION
```
public static final SdkMetric<Duration> MARSHALLING_DURATION
```
    The duration of time taken to marshall the SDK request to an HTTP request.
  - SIGNING_DURATION
```
public static final SdkMetric<Duration> SIGNING_DURATION
```
    The duration of time taken to sign the HTTP request.
  - SERVICE_CALL_DURATION
```
public static final SdkMetric<Duration> SERVICE_CALL_DURATION
```
    The duration of time taken to connect to the service (or acquire a connection from the connection pool), send the serialized request and receive the initial response (e.g. HTTP status code and headers). This DOES NOT include the time taken to read the entire response from the service.
  - UNMARSHALLING_DURATION
```
public static final SdkMetric<Duration> UNMARSHALLING_DURATION
```
    The duration of time taken to unmarshall the HTTP response to an SDK response.
    Note: For streaming operations, this does not include the time to read the response payload.
  - AWS_REQUEST_ID
```
public static final SdkMetric<String> AWS_REQUEST_ID
```
    The request ID of the service request.
  - AWS_EXTENDED_REQUEST_ID
```
public static final SdkMetric<String> AWS_EXTENDED_REQUEST_ID
```
    The extended request ID of the service request.
  - TIME_TO_FIRST_BYTE
```
public static final SdkMetric<Duration> TIME_TO_FIRST_BYTE
```
    The duration of time between from sending the HTTP request (including acquiring a connection) to the service, and receiving the first byte of the headers in the response.
  - TIME_TO_LAST_BYTE
```
public static final SdkMetric<Duration> TIME_TO_LAST_BYTE
```
    The duration of time between from sending the HTTP request (including acquiring a connection) to the service, and receiving the last byte of the response.
    Note that for APIs that return streaming responses, this metric spans the time until the ResponseTransformer or AsyncResponseTransformer completes.
  - READ_THROUGHPUT
```
public static final SdkMetric<Double> READ_THROUGHPUT
```
    The read throughput of the client, defined as NumberOfResponseBytesRead / (TTLB - TTFB). This value is in bytes per second.
    Note that this metric only measures the bytes read from within the ResponseTransformer or AsyncResponseTransformer. Data that is read outside the transformer (e.g. when the response stream is returned as the result of the transformer) is not included in the calculation.
  - ENDPOINT_RESOLVE_DURATION
```
public static final SdkMetric<Duration> ENDPOINT_RESOLVE_DURATION
```
    The duration of time it took to resolve the endpoint used for the API call.
  - ERROR_TYPE
```
public static final SdkMetric<String> ERROR_TYPE
```
    The type of error that occurred for a call attempt.
    The following are possible values:
    
    Throttling - The service responded with a throttling error.
    
    ServerError - The service responded with an error other than throttling.
    
    ClientTimeout - A client timeout occurred, either at the API call level, or API call attempt level.
    
    IO - An I/O error occurred.
    
    Other - Catch-all for other errors that don't fall into the above categories.

Class CoreMetric

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

SERVICE_ID

OPERATION_NAME

API_CALL_SUCCESSFUL

RETRY_COUNT

SERVICE_ENDPOINT

API_CALL_DURATION

CREDENTIALS_FETCH_DURATION

TOKEN_FETCH_DURATION

BACKOFF_DELAY_DURATION

MARSHALLING_DURATION

SIGNING_DURATION

SERVICE_CALL_DURATION

UNMARSHALLING_DURATION

AWS_REQUEST_ID

AWS_EXTENDED_REQUEST_ID

TIME_TO_FIRST_BYTE

TIME_TO_LAST_BYTE

READ_THROUGHPUT

ENDPOINT_RESOLVE_DURATION

ERROR_TYPE