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Table of Contents

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Pipe OrderNameTypeGroupDescription

Applicable

(per log file)

Marker Associations

Moved

MDC

to


standard

attribute


Removed

(was in

older

spec)

Required?

Y/N/C

(C= context dependent)

N = not required

L=Library provided


DerivedHistoricalAcumos
ref
Use Cases

Code References

1LogTimestamplog system
use %d field - see %d{"yyyy-MM-dd'T'HH:mm:ss.SSSXXX",UTC}



L




2EntryTimestampMDC
if part of an ENTRY marker log



C




3InvokeTimestampMDC
if part of an INVOKE marker log



C




4

RequestID
(pau)do we need to update this to TransactionID as per LOG-232 (discussed back in 20180426)?

MDC

UUID to track the processing of each client request across all the ONAP components involved in its processing





Y



In general

https://git.onap.org/logging-analytics/tree/reference/logging-slf4j-demo/src/test/java/org/onap/logging/ref/slf4j/demo/component/AbstractComponentTest.java

5InvocationIDMDC

UUID correlates log entries relating to a single invocation of a single component
In the case of an asynchronous request, the InvocationID should come from the original request 





Y




6InstanceIDMDC

UUID to differentiate between multiple instances of the same (named) log writing service/application





Y
was InstanceUUID


7ServiceInstanceIDMDC





C




8threadlog system
use %thread field



L




9ServiceName

The service inside the partner doing the call - includes API name





Y




10PartnerName

The identification of the entity that made the request being served.  For a serving API that is authenticating the request, this should be the authenticated username or equivalent (e.g. an attuid or a mechid)

unauthenticated = The part of the URI specifying the agent that the caller used to make the call to the component that is logging the message.

authenticated = userid

  1. If an authenticated API, then log the userid
  2. Otherwise, if the HTTP header "X-ONAP-PartnerName" was provided, then log that (note: this was a direction that we seemed to be going but never completed)
  3. Otherwise, if the HTTP header "User-Agent" was provided, then log that
  4. Otherwise, log "UNKNOWN" (since the field is currently required, something must be in it)




Y

user

11StatusCode

This field indicates the high level status of the request - one of (COMPLETE, ERROR, INPROGRESS)






Y



20180807: expand from 2 fields to add "INPROGRESS"

addresses Chris Lott question on https://wiki.acumos.org/display/OAM/Log+Standards

12ResponseCode

This field contains application-specific error codes.



Y






13ResponseDesc

This field contains a human readable description of the ResponseCode



Y






14level

%level



L




15Severity

Logging level by default aligned with the reported log level - one of INFO/TRACE/DEBUG/WARN/ERROR/FATAL





Y

level (but numbers)

16ServerIPAddress






C




17ElapsedTime






C




18ServerFQDN

The VM FQDN if the server is virtualized. Otherwise the host name of the logging component.





Y






19ClientIPAddress

This field contains the requesting remote client application’s IP address if known. Otherwise empty.





Y






20VirtualServerName






C




21ContextName






C




22TargetEntity

The name of the ONAP component or sub-component, or external entity, at which the operation activities captured in this metrics log record is invoked.





C




23TargetServiceName

The name  of the API or operation activities invoked (name on the remote/target application) at the TargetEntity.  





C




24TargetElement

VNF/PNF context dependent - on CRUD operations of VNF/PNFs

The IDs that need to be covered with the above Attributes are

  • VNF_ID OR VNFC_ID : (Unique identifier for a VNF asset that is being instantiated or that would generate an alarms)
  • VSERVER_ID OR VM_ID (or vmid): (Unique identified for a virtual server or virtual machine on which a Control Loop action is usually taken on, or that is installed  as part of instantiation flow)
  • PNF : (What is the Unique identifier used within ONAP?)




C




25UserMDC
User - used for %X{user}  



C




26p_loggerlog system
The name of the class doing the logging (in my case the ApplicationController – close to the targetservicename but at the class granular level - this field is %logger



L




27p_mdclog system

allows forward compatability with ELK indexers that read all MDCs in a single field - while maintaining separate MDCs above.


The key/value pairs all in one pipe field (will have some duplications currently with MDC’s that are in their own pipe – but allows us to expand the MDC list – replaces customvalue1-3 older fields - this field is %mdc





L




28p_messagelog system
The marker labels INVOKE, ENTRY, EXIT – and later will also include DEBUG, AUDIT, METRICS, ERROR when we go to 1 log file - this field is %marker



L





RootExceptionlog system
%rootException - Dublin spec only



L




29p_markerlog system
The marker labels INVOKE, ENTRY, EXIT – and later will also include DEBUG, AUDIT, METRICS, ERROR when we go to 1 log file - this field is %marker



L




...

  1. X-ONAP-RequestID (canonical)
  2. X-RequestID (deprecated)
  3. X-TransactionID (deprecated)

Anchor
MDC-InvocationID
MDC-InvocationID
MDC - InvocationID

InvocationID is similar to RequestID, but where RequestID correlates records relating a single, top-level invocation of ONAP as it traverses many systems, InvocationID correlates log entries relating to a single invocation of a single component. Typically this means via REST, but in certain cases an InvocationID may be allocated without a new invocation, e.g. when a request is retried.

...

  • It's only a few calls. 
  • It can be largely abstracted in the case of EELF logging.

Anchor
MDC-InstanceID
MDC-InstanceID
MDC - InstanceID

(formerly InstanceUUID)

If known, this field contains a universally unique identifier used to differentiate between multiple instances of the same (named) log writing service/application. Its value is set at instance creation time (and read by it, e.g., at start/initialization time from the environment). This value should be picked up by the component instance from its configuration file and subsequently used to enable differentiation of log records created by multiple, locally load balanced ONAP component or subcomponent instances that are otherwise identically configured.

Handles parallel threads or running across a load balanced set of microservices - for identification.

Anchor
MDC-PartnerName
MDC-PartnerName
MDC - PartnerName

This field should contain the name of the client application user agent or user invoking the API. The identification of the entity that made the request being served. For a serving API that is authenticating the request, this should be the authenticated username or equivalent (e.g. a userid or a mechid). 

...

Usage overlaps with InvocationID, which doesn't mean PartnerName gets retired, but which might mean it serves a more descriptive purpose. (Since it hasn't proven to be a great way of generating a call graph).

Anchor
MDC - ServiceName
MDC - ServiceName
MDC - ServiceName

The URI that the caller used to make the call to the component that is logging the message.

...

Usage is the same for indexable logs. 

Anchor
MDC - StatusCode
MDC - StatusCode
MDC - StatusCode

This field indicates the high level status of the request. It must have the value COMPLETE when the request is successful and ERROR when there is a failure.  And INPROGRESS for states between the two.

...

Note there are 3 tabs (see p_mak in logback.xml) delimiting the MARKERS (ENTRY and EXIT) at the end of each line
<property name="p_mak" value="%replace(%replace(%marker){'\t', '\\\\t'}){'\n','\\\\n'}"/>


Code Block
languagejava
themeMidnight
2018-07-05T20:21:34.794Z	http-nio-8080-exec-2	INFO	org.onap.demo.logging.ApplicationService	InstanceID=ede7dd52-91e8-45ce-9406-fbafd17a7d4c, RequestID=f9d8bb0f-4b4b-4700-9853-d3b79d861c5b, ServiceName=/logging-demo/rest/health/health, InvocationID=8f4c1f1d-5b32-4981-b658-e5992f28e6c8, InvokeTimestamp=2018-07-05T20:21:26.617Z, PartnerName=, ClientIPAddress=0:0:0:0:0:0:0:1, ServerFQDN=localhost			ENTRY	
2018-07-05T20:22:09.268Z	http-nio-8080-exec-2	INFO	org.onap.demo.logging.ApplicationService	ResponseCode=, InstanceID=ede7dd52-91e8-45ce-9406-fbafd17a7d4c, RequestID=f9d8bb0f-4b4b-4700-9853-d3b79d861c5b, ServiceName=/logging-demo/rest/health/health, ResponseDescription=, InvocationID=8f4c1f1d-5b32-4981-b658-e5992f28e6c8, Severity=, InvokeTimestamp=2018-07-05T20:21:26.617Z, PartnerName=, ClientIPAddress=0:0:0:0:0:0:0:1, ServerFQDN=localhost, StatusCode=			EXIT	

...