In this example, a request to the Directory REST API is made and the correlation ID enables finding HTTP-specific log messages with LDAP-specific log messages. The response to the API call includes a Correlation-Id header with the value a54aee33-c6c6-4467-be25-efd1db7a8b76.

GET /directory/v1/me?includeAttributes=mail HTTP/1.1
                Accept: */*
                Accept-Encoding: gzip, deflate
                Authorization: Bearer ...
                Connection: keep-alive
                Host: localhost:1443
                User-Agent: HTTPie/0.9.9
                HTTP/1.1 200 OK
                Content-Length: 266
                Content-Type: application/hal+json
                Correlation-Id: ee919049-6710-4594-9c66-28b4ada4b127
                Date: Fri, 02 Nov 2018 15:16:50 GMT
                Request-Id: 369
                {
                "_dn": "uid=user.86,ou=People,dc=example,dc=com",
                "_links": {
                "schemas": [
                {
                "href": "https://localhost:1443/directory/v1/schemas/
                inetOrgPerson"
                }
                ],
                "self": {
                "href": "https://localhost:1443/directory/v1/
                uid=user.86,ou=People,dc=example,dc=com"
                }
                },
                "mail": [
                "user.86@example.com"
                ]
                }

This correlation ID can be used to search the HTTP trace log for matching log records, as follows:

$ grep 'correlationID="ee919049-6710-4594-9c66-28b4ada4b127"'
                        PingDirectory/logs/debug-trace
                        [02/Nov/2018:10:16:50.294 -0500] HTTP REQUEST requestID=369
                        correlationID="ee919049-6710-4594-9c66-28b4ada4b127" product="Ping Identity
                        Directory Server" instanceName="ds1" startupID="W9ikqA==" threadID=52358 from=
                        [0:0:0:0:0:0:0:1]:58918 method=GET
                        url="https://0:0:0:0:0:0:0:1:1443/directory/v1/me?includeAttributes=mail"
                        [02/Nov/2018:10:16:50.526 -0500] DEBUG ACCESS-TOKEN-VALIDATOR-PROCESSING
                        requestID=369 correlationID="ee919049-6710-4594-9c66-28b4ada4b127"
                        msg="Identity Mapper with DN 'cn=User ID Identity Mapper,cn=Identity
                        Mappers,cn=config' mapped ID 'user.86' to entry DN
                        'uid=user.86,ou=people,dc=example,dc=com'"
                        [02/Nov/2018:10:16:50.526 -0500] DEBUG ACCESS-TOKEN-VALIDATOR-PROCESSING
                        requestID=369 correlationID="ee919049-6710-4594-9c66-28b4ada4b127"
                        accessTokenId="201811020831" msg="Token Validator 'Mock Access Token
                        Validator' validated access token with active = 'true', sub = 'user.86', owner
                        = 'uid=user.86,ou=people,dc=example,dc=com', clientId = 'client1', scopes =
                        'ds', expiration = 'none', not-used-before = 'none', current time = 'Nov 2,
                        2018 10:16:50 AM CDT' "
                        [02/Nov/2018:10:16:50.531 -0500] HTTP RESPONSE requestID=369
                        correlationID="ee919049-6710-4594-9c66-28b4ada4b127"
                        accessTokenId="201811020831" product="Ping Identity Directory Server"
                        instanceName="ds1" startupID="W9ikqA==" threadID=52358 statusCode=200
                        etime=236.932 responseContentLength=266
                        [02/Nov/2018:10:16:50.531 -0500] DEBUG HTTP-FULL-REQUEST-AND-RESPONSE
                        requestID=369 correlationID="ee919049-6710-4594-9c66-28b4ada4b127"
                        accessTokenId="201811020831" product="Ping Identity Directory Server"
                        instanceName="ds1" startupID="W9ikqA==" threadID=52358 from=
                        [0:0:0:0:0:0:0:1]:58918 method=GET
                        url="https://0:0:0:0:0:0:0:1:1443/directory/v1/me?includeAttributes=mail"
                        statusCode=200 etime=236.932 responseContentLength=266 msg="

The LDAP log messages associated with this request can also be located:

$ grep 'correlationID="ee919049-6710-4594-9c66-28b4ada4b127"'
                                PingDirectory/logs/access
                                [02/Nov/2018:10:16:50.529 -0500] SEARCH RESULT instanceName="ds1"
                                threadID=52358 conn=-371045 op=1657393 msgID=1657394 origin="Directory REST
                                API" httpRequestID="369" correlationID="ee919049-6710-4594-9c66-28b4ada4b127"
                                authDN="uid=user.86,ou=people,dc=example,dc=com" requesterIP="internal"
                                requesterDN="uid=user.86,ou=People,dc=example,dc=com"
                                requestControls="1.3.6.1.4.1.30221.2.5.2" via="app='PingDirectoryds1'
                                clientIP='0:0:0:0:0:0:0:1' sessionID='201811020831' requestID='ee919049-6710-
                                4594-9c66-28b4ada4b127'" base="uid=user.86,ou=people,dc=example,dc=com"
                                scope=0 filter="(&)" attrs="mail,objectClass" resultCode=0
                                resultCodeName="Success" etime=0.684 entriesReturned=1
                                [02/Nov/2018:10:16:50.530 -0500] EXTENDED RESULT instanceName="ds1"
                                threadID=52358 conn=-371046 op=1657394 msgID=1657395 origin="Directory REST
                                API" httpRequestID="369" correlationID="ee919049-6710-4594-9c66-28b4ada4b127"
                                authDN="cn=Internal Client,cn=Internal,cn=Root DNs,cn=config"
                                requesterIP="internal" requesterDN="cn=Internal Client,cn=Internal,cn=Root
                                DNs,cn=config" requestControls="1.3.6.1.4.1.30221.2.5.2"
                                via="app='PingDirectory-ds1' clientIP='0:0:0:0:0:0:0:1'
                                sessionID='201811020831' requestID='ee919049-6710-4594-9c66-28b4ada4b127'"
                                requestOID="1.3.6.1.4.1.30221.1.6.1" requestType="Password Policy State"
                                resultCode=0 resultCodeName="Success" etime=0.542 usedPrivileges="bypassacl,password-reset" responseOID="1.3.6.1.4.1.30221.1.6.1"
                                responseType="Password Policy State"
                                dn="uid=user.86,ou=People,dc=example,dc=com"
                                [02/Nov/2018:10:16:50.530 -0500] SEARCH RESULT instanceName="ds1"
                                threadID=52358 conn=-371048 op=1657397 msgID=1657398 origin="Directory REST
                                API" httpRequestID="369" correlationID="ee919049-6710-4594-9c66-28b4ada4b127"
                                authDN="cn=Internal Client,cn=Internal,cn=Root DNs,cn=config"
                                requesterIP="internal" requesterDN="cn=Internal Client,cn=Internal,cn=Root
                                DNs,cn=config" requestControls="1.3.6.1.4.1.30221.2.5.2"
                                via="app='PingDirectoryds1' clientIP='0:0:0:0:0:0:0:1'
                                sessionID='201811020831' requestID='ee919049-6710-4594-9c66-28b4ada4b127'"
                                base="cn=Default Password Policy,cn=Password Policies,cn=config" scope=0
                                filter="(&)" attrs="dscfg- password-attribute" resultCode=0
                                resultCodeName="Success" etime=0.065 preAuthZUsedPrivileges="bypassacl,config-read" entriesReturned=1