From 49df0ba20a1eba1c8f201551c5601342148b849b Mon Sep 17 00:00:00 2001
From: Federico Stagni <federico.stagni@cern.ch>
Date: Tue, 19 Nov 2024 11:51:30 +0100
Subject: [PATCH] fix: added ulimit -n 1048575 to pilotwrapper content

---
 .../WorkloadManagementSystem/Utilities/PilotWrapper.py     | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/DIRAC/WorkloadManagementSystem/Utilities/PilotWrapper.py b/src/DIRAC/WorkloadManagementSystem/Utilities/PilotWrapper.py
index 4056df949bd..50b8bf5ed99 100644
--- a/src/DIRAC/WorkloadManagementSystem/Utilities/PilotWrapper.py
+++ b/src/DIRAC/WorkloadManagementSystem/Utilities/PilotWrapper.py
@@ -19,6 +19,13 @@
 import tempfile
 
 pilotWrapperContent = """#!/bin/bash
+# Reduce the maximum allowed number of open file descriptors as micromamba
+# gets stuck due to https://github.com/DaanDeMeyer/reproc/pull/103
+current_limit=$(ulimit -n)
+new_limit=1048575
+if [ "${current_limit}" = "unlimited" ] || [ "${current_limit}" -gt "${new_limit}" ]; then
+    ulimit -n "${new_limit}"
+fi
 if command -v python &> /dev/null; then
   py='python'
 elif command -v python3 &> /dev/null; then