commit e88c14287c07a55a43efa3b2063d927baaa6aae2
Author: Xiaotong Luo <luoxi@vmware.com>
Date:   Mon Sep 14 12:26:29 2020 -0700

    Add error message and NSX time for failed authentication
    
    In addition to status code, also log error message and
    local NSX time for failed NSX authentication for
    easier troubleshooting for failed JWT authentication and
    potential clock drift between NSX, VC and Master node.
    
    Change-Id: Icf31477bffda85ba73a1123232b6aa5503066922
    (cherry picked from commit 8e7075b69d4870e6ff1d123507164cc325735efb)

diff --git a/vmware_nsxlib/v3/cluster.py b/vmware_nsxlib/v3/cluster.py
index 8facbe6..d162855 100644
--- a/vmware_nsxlib/v3/cluster.py
+++ b/vmware_nsxlib/v3/cluster.py
@@ -281,8 +281,11 @@ class NSXRequestsHTTPProvider(AbstractHTTPProvider):
         else:
             if resp.status_code != 200 and resp.status_code != 201:
                 LOG.warning("Session create failed for endpoint %s with "
-                            "response %s",
-                            provider.url, resp.status_code)
+                            "response %s, error message: %s, "
+                            "local NSX time: %s",
+                            provider.url, resp.status_code,
+                            resp.json().get('error_message'),
+                            resp.headers['Date'])
                 # this may will later cause the endpoint to be Down
             else:
                 for header_name in resp.headers: