ExternalParameterShellExec error

[Abraxas]

Hi,
I've bene using NetXMS for a long time, but I recently moved to a new set of servers and rain into some strange problems.
I have the following script:
#! /bin/bash
LOG_FILE="/var/log/rating_engine.log"
STATE=`/etc/init.d/vrrpd show_state`;
if [[ ! -f "/tmp/ccup_running.lock" ]]; then
  if [ "$STATE" = "State is master." ]; then
          LAST_RUN=`tac $LOG_FILE | grep -m 1 "Billing ended" | tr -s ' ' | cut -d ' ' -f 1,2`
          LAST_RUN_DATE=$(date -ud "$LAST_RUN" +'%s')
          CURRENT_DATE=`date +%s`
          TIME_DIFF=$((CURRENT_DATE-LAST_RUN_DATE))

          if [ $TIME_DIFF -gt 180 ];then
                  echo "1"
          else
                  echo "0"
          fi
  else
          echo "0"
  fi
else
  echo "0"
fi
The script returns 0 or 1, as needed, but on the NetXMS server I only have 0s

In all older versions it has been working fine. On the new ones (NetXMS Core Agent Version 4.1.333 Build 4.1-333-gf37ab67d18 (UNICODE) in this case), the server always sees 0.
When I try nxget from the server, I get:

tac: write error: Broken pipe

Also I noticed the when I try to add this as a new parameter for that node, I see the data type as "string" I am returning 0 or 1, and used to set these as Integer. How can I change the data type from the agent?

[Filipp Sudanov]

At some point external parameters started to capture STDERR in addition to STDOUT. Most probably your script produces some sort of textual error that is being captured. Then NetXMS tries to interpret it as integer and this way it becomes 0.

You can check with nxget

nxget IP_ADDRESS_OF_AGENT name_of_the_parameter