From ffd0b5e9e78c07e75abe63fdea67d93f7ee8abf4 Mon Sep 17 00:00:00 2001
From: Albert Zeyer <albert.zeyer@rwth-aachen.de>
Date: Mon, 16 Dec 2024 18:45:21 +0100
Subject: [PATCH] Fix JobCleaner close, join only when started

---
 sisyphus/manager.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sisyphus/manager.py b/sisyphus/manager.py
index 93ebd9a..6c1784d 100644
--- a/sisyphus/manager.py
+++ b/sisyphus/manager.py
@@ -45,7 +45,8 @@ def f(job):
 
     def close(self):
         self.stopped.set()
-        self.join()
+        if self.is_alive():
+            self.join()
         self.thread_pool.close()