There is, of course, more than one type of netcat.

Author: hategan

src/psij/executors/batch/common/batch_lib.mustache

@@ -3,17 +3,28 @@ _UPDATE_MODE="none"
 update_status() {
     STATUS="$1"
     if [ "$_UPDATE_MODE" == "none" ]; then
-        if which nc >/dev/null; then
-            _UPDATE_MODE="nc"
+        NCPROBE=`nc -h 2>&1`
+        EC=$?
+        if [ "$EC" == "0" ]; then
+            if echo $NCPROBE | grep "send-only" >/dev/null 2>&1 ; then
+                _UPDATE_MODE="nc1"
+            else
+                _UPDATE_MODE="nc2"
+            fi
         else
             _UPDATE_MODE="file"
         fi
     fi
 
-    if [ "$_UPDATE_MODE" == "nc" ]; then
+    if [ "$_UPDATE_MODE" == "nc1" ]; then
         ADDRS={{psij.us_addrs}}
         for ADDR in ${ADDRS//,/ }; do
-            echo "{{job.id}} $STATUS" | nc -4 -u $ADDR {{psij.us_port}}
+            echo "{{job.id}} $STATUS" | nc --send-only -4 -u $ADDR {{psij.us_port}}
+        done
+    elif [ "$_UPDATE_MODE" == "nc2" ]; then
+        ADDRS={{psij.us_addrs}}
+        for ADDR in ${ADDRS//,/ }; do
+            echo "{{job.id}} $STATUS" | nc -w0 -q0 -4 -u $ADDR {{psij.us_port}}
         done
     else
         echo "{{job.id}} $STATUS" >> {{psij.us_file}}