idp-process.log with custom email attribute name id
urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress
root@gluusvr:/opt/gluu/jetty/identity/conf/shibboleth3/idp# tail -f /opt/shibboleth-idp/logs/idp-process.log
2017-04-03 04:10:48,292 - INFO [org.gluu.oxauth.client.validation.OAuthValidationFilter:51] - Property [oxauth.token.validation.url] loaded from oxTrust.properties
2017-04-03 04:10:48,292 - INFO [org.gluu.oxauth.client.validation.OAuthValidationFilter:51] - Property [oxauth.userinfo.url] loaded from oxTrust.properties
2017-04-03 04:10:48,292 - INFO [org.gluu.oxauth.client.validation.OAuthValidationFilter:51] - Property [oxauth.client.id] loaded from oxTrust.properties
2017-04-03 04:10:48,292 - INFO [org.gluu.oxauth.client.validation.OAuthValidationFilter:51] - Property [oxauth.client.password] loaded from oxTrust.properties
2017-04-03 04:10:48,415 - INFO [org.gluu.oxauth.client.validation.OAuthValidationFilter:151] - validate check session status:200
2017-04-03 04:10:48,416 - INFO [org.gluu.oxauth.client.validation.OAuthValidationFilter:157] - Session validation successful. User is logged in
2017-04-03 04:10:48,504 - INFO [net.shibboleth.idp.authn.impl.ValidateExternalAuthentication:115] - Profile Action ValidateExternalAuthentication: External authentication succeeded for user: sanvi@example.com
2017-04-03 04:10:48,630 - WARN [org.opensaml.saml.saml2.profile.impl.AddNameIDToSubjects:337] - Profile Action AddNameIDToSubjects: Request specified use of an unsupportable identifier format: urn:oasis:names:tc:SAML:1.1:nameid-format:email
2017-04-03 04:10:48,635 - WARN [org.opensaml.profile.action.impl.LogEvent:76] - An error event occurred while processing the request: InvalidNameIDPolicy
2017-04-03 04:10:48,656 - INFO [Shibboleth-Audit.SSO:241] - 20170403T041048Z|urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect|SNC0fd2f8ec8325c97d14f6d886209b0b37|https://dev33269.service-now.com|http://shibboleth.net/ns/profiles/saml2/sso/browser|https://domain/idp/shibboleth|urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST|_9dacc4d83f4b10d4fe469fe5f317cd21|sanvi@example.com|||||