From 4775ca9ca1014830f4a5b6ae68b6ba2045f2f231 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Saugat=20Pachhai=20=28=E0=A4=B8=E0=A5=8C=E0=A4=97=E0=A4=BE?=
 =?UTF-8?q?=E0=A4=A4=29?= <suagatchhetri@outlook.com>
Date: Wed, 12 Jul 2023 12:59:49 +0545
Subject: [PATCH] plots: log failures during datapoint conversions

Fixes #9441.

Note that we do merge props, and use that for all revision. So you may
see warning for multiple revisions.
---
 dvc/render/match.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dvc/render/match.py b/dvc/render/match.py
index 3f36e9adc0..86eba55c3a 100644
--- a/dvc/render/match.py
+++ b/dvc/render/match.py
@@ -1,3 +1,4 @@
+import logging
 import os
 from collections import defaultdict
 from typing import TYPE_CHECKING, DefaultDict, Dict, List, NamedTuple, Optional
@@ -17,6 +18,7 @@
 
 
 dpath.options.ALLOW_EMPTY_STRING_KEYS = True
+logger = logging.getLogger(__name__)
 
 
 def _squash_plots_properties(data: List) -> Dict:
@@ -113,6 +115,7 @@ def match_defs_renderers(  # noqa: C901, PLR0912
             try:
                 dps, rev_props = converter.flat_datapoints(rev)
             except Exception as e:  # noqa: BLE001, pylint: disable=broad-except
+                logger.warning("In %r, %s", rev, str(e).lower())
                 def_errors[rev] = e
                 continue