From 3a917605f585582e8f6cd2e9f61778b11c93f52d Mon Sep 17 00:00:00 2001
From: "Zaiming (Stone) Shi" <zmstone@gmail.com>
Date: Thu, 11 Aug 2022 13:15:45 +0200
Subject: [PATCH] fix(bin/emqx): avoid creating crash dump file when checking
 erlang

---
 bin/emqx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bin/emqx b/bin/emqx
index 7a31f32ce..13371f9da 100755
--- a/bin/emqx
+++ b/bin/emqx
@@ -52,7 +52,8 @@ assert_node_alive() {
 check_erlang_start() {
     # Fix bin permission
     find "$BINDIR" ! -executable -exec chmod a+x {} \;
-    "$BINDIR/$PROGNAME" -boot "$REL_DIR/start_clean" -eval "crypto:start(),halt()"
+    # set ERL_CRASH_DUMP_BYTES to zero so it will not write a crash dump file
+    env ERL_CRASH_DUMP_BYTES=0 "$BINDIR/$PROGNAME" -boot "$REL_DIR/start_clean" -eval "crypto:start(),halt()"
 }
 
 if ! check_erlang_start >/dev/null 2>&1; then