script that uses java in UserParameter not work when get error messages

[cberni]

I have the userparameter:
UserParameter=dicom.echo,/opt/dicom_echo.sh

The dicom_echo.sh:

#!/bin/bash
/opt/dcm4che2/bin/dcmecho [email protected]:11112 -L XXXXX >& /dev/null
echo $?

This echo show 0 if OK and NOT 0 if PROBLEM.

When returning 0 all things work right:
- console in server:
root@zabbix-server:~# zabbix_get -s zabbix.agent -p 10050 -k "dicom.echo"
0
- console in agent:
root@zabbix-agent:# zabbix_agentd -t dicom.echo
dicom.echo [t|0]

BUT when returning NOT 0 we got the problem:
- console in server:
root@zabbix-server:~# zabbix_get -s zabbix.agent -p 10050 -k "dicom.echo"
ZBX_NOTSUPPORTED

- console in agent:
root@zabbix-agent:# zabbix_agentd -t dicom.echo
dicom.echo Alarm clock


When java get the error in stderr the script put it in /dev/null (>&) and returns only a number not 0. But zabbix-agent appears don't recognized it. Any idea?

[Heilig]

Are you sure that there is only a number (and no other characters or spaces)?
What mistake Zabbix shows when you move mouse in a column error for this item?

[cberni]

sure that have only the number.

don't get any error there: http://postimg.org/image/6wszozu51/


after a while showed a error: "Get value from agent failed: ZBX_TCP_READ() failed: [4] Interrupted system call"
But I don't know if is about this problem (see next image link): http://postimg.org/image/aaz36an81/

[cberni]

if I comment the lines in the script and put just "echo 2" I get it right:
zabbix_agentd -t dicom.echo
dicom.echo [t|2]

and not that "Alarm clock"


to be sure that is only printing the number I did:

#!/bin/bash
/opt/dcm4che2/bin/dcmecho [email protected]:11122 -L XXXXX >& /dev/null

if [[ $? -eq 0 ]]; then
    echo 0
else
    echo 2
fi

when "echo 2" get the problem. "echo 0" is ok.

the problem seems to be on the line: "/opt/dcm4che2/bin/dcmecho [email protected]:11122 -L XXXXX >& /dev/null"

[cberni]

the big picture is:

when the script get a error and use stderr.
If the script use stderr show the error described above. Does anybody could tell me way?

[cberni]

solved.

the problem was because the script take too long time to finish when got problems. the scrip needs about 5 seconds.

The option Timeout (Spend no more than Timeout seconds on processing) is the set as 3 by default. I changed it to 10 and than I didn't get the "Alarm clock" anymore.

[jefersoncb]

Hello, sorry to be activating the post again, but I have not found any other solution to obtain monitoring in a DICOM environment. Would you have the complete script and how was it used? I tried using your script with the dcm4chee package, but I didn't get good results.