[Improve](be)check max open file #18888

bin/start_be.sh

@@ -71,6 +71,12 @@ if [[ "$(uname -s)" != 'Darwin' ]]; then
     fi
 fi
 
+MAX_FILE_COUNT="$(ulimit -n)"
+if [[ "${MAX_FILE_COUNT}" -lt 65536 ]]; then
+    echo "Please set the maximum number of open file descriptors to be 65536 using 'ulimit -n 65536'."
+    exit 1
+fi
+
 # add java libs
 for f in "${DORIS_HOME}/lib"/*.jar; do
     if [[ -z "${DORIS_CLASSPATH}" ]]; then