NRPE: Unable to read output

[Matthew Litwin]

Please disregard. I see the typo in the NRPE command path. So sorry!


On 9/3/09 12:48 PM, "Matthew Litwin" <mlitwin at stubhub.com> wrote:

> I wrote a perl plugin that seems to work fine when I run it locally on the
> remote host as the nagios user, however when I try to execute it via NRPE I
> get the old familiar nebulous ³NRPE: Unable to read output². I have debugging
> on for NRPE logging and it doesn¹t tell much more. (Note this is in reverse
> order is it is out of splunk. IPs are obfuscated)
> 
> Sep  3 19:27:01 sjvp00dbs001.XX.com Sep  3 19:27:01 nrpe[12434]: [ID 903583
> daemon.debug] Connection from X.X.X.X closed.
> host=sjvp00dbs001.XX.com Options sourcetype=syslog Options source=udp:514
> Options
> 589/3/09 7:27:01.000 PM
> Sep  3 19:27:01 sjvp00dbs001.XX.com Sep  3 19:27:01 nrpe[12434]: [ID 869297
> daemon.debug] Return Code: 1, Output: NRPE: Unable to read output
> host=sjvp00dbs001.XX.com Options sourcetype=syslog Options source=udp:514
> Options
> 599/3/09 7:27:01.000 PM
> Sep  3 19:27:01 sjvp00dbs001.XX.com Sep  3 19:27:01 nrpe[12434]: [ID 757686
> daemon.debug] Command completed with return code 1 and output:
> host=sjvp00dbs001.XX.com Options sourcetype=syslog Options source=udp:514
> Options
> 609/3/09 7:27:01.000 PM
> Sep  3 19:27:01 sjvp00dbs001.XX.com Sep  3 19:27:01 nrpe[12434]: [ID 462736
> daemon.debug] Running command: /usr/loca/nagios/libexec/check_scrub_backlog.pl
> -w 1000 -c 2000 -u XXXX -p XXXX -i XXXX
> Sep  3 19:27:01 sjvp00dbs001.XX.com Sep  3 19:27:01 nrpe[12434]: [ID 881351
> daemon.debug] Host is asking for command 'check_scrub_backlog' to be run...
> host=sjvp00dbs001.XX.com Options sourcetype=syslog Options source=udp:514
> Options
> 629/3/09 7:27:01.000 PM
> Sep  3 19:27:01 sjvp00dbs001.XX.com Sep  3 19:27:01 nrpe[12434]: [ID 385967
> daemon.debug] Host address is in allowed_hosts
> host=sjvp00dbs001.XX.com Options sourcetype=syslog Options source=udp:514
> Options
> 639/3/09 7:27:01.000 PM
> Sep  3 19:27:01 sjvp00dbs001.XX.com Sep  3 19:27:01 nrpe[12434]: [ID 654915
> daemon.debug] Connection from X.X.X.X port 34549
> host=sjvp00dbs001.XX.com Options sourcetype=syslog Options source=udp:514
> Options
> 649/3/09 7:27:01.000 PM
> Sep  3 19:27:01 sjvp00dbs001.XX.com Sep  3 19:27:01 nrpe[12434]: [ID 879649
> daemon.debug] Handling the connection...
> 
> The command that is trying to run looks corrected- arguments are being sent
> correctly. I have tested the command using the same user that NRPE is running
> as, nagios. I did build in output for error messages in case there were
> problems like issues with ENV, but obviously they are not making it to NRPE. I
> confirmed my output text has EOLs. What is especially weird is that the return
> code makes it back correctly but the output is just ³NRPE: Unable to read
> output² even as logged by nrpe.
> 
> The output should look like this, which is what it gets locally when ran:
> Scrub Backlog Count: 1083
> 
> Nothing unusually with that, right?
> 
> Any help appreciated, thanks.
> 
> 
> 
> Does anyone have any other suggestions on how I might debug this? Since NRPE
> is working for all my other plugins
> 
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