From a984f95cbd642e43d8000e81c6f17caf6387c11c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20Rowlands=20=28=EB=B3=80=EA=B8=B0=ED=98=B8=29?=
 <peter@pmrowla.com>
Date: Thu, 8 Apr 2021 19:27:48 +0900
Subject: [PATCH] exp run: jobs should default to 1 (#5785)

---
 dvc/command/experiments.py             | 1 +
 tests/unit/command/test_experiments.py | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/dvc/command/experiments.py b/dvc/command/experiments.py
index 80b8f178b..f53a4d080 100644
--- a/dvc/command/experiments.py
+++ b/dvc/command/experiments.py
@@ -1213,6 +1213,7 @@ def _add_run_common(parser):
         "-j",
         "--jobs",
         type=int,
+        default=1,
         help="Run the specified number of experiments at a time in parallel.",
         metavar="<number>",
     )
diff --git a/tests/unit/command/test_experiments.py b/tests/unit/command/test_experiments.py
index 3895bb13d..65e50634e 100644
--- a/tests/unit/command/test_experiments.py
+++ b/tests/unit/command/test_experiments.py
@@ -93,7 +93,7 @@ def test_experiments_run(dvc, scm, mocker):
         "name": None,
         "queue": False,
         "run_all": False,
-        "jobs": None,
+        "jobs": 1,
         "tmp_dir": False,
         "checkpoint_resume": None,
         "reset": False,