dbabits / monit Goto Github PK

(bitbucket issue 810)
This CHECK PROGRAM generates random successes and failures, using bash's $RANDOM to trigger divide by 0.
As you see, in case of SUCCESS, MONIT_EVENT still shows 'Status failed'
In fact, it always shows this status. The UI paints accordingly.


Relevant configuration:
     43      CHECK PROGRAM NodeManager WITH PATH "/bin/bash -c 'echo $(( 1/($RANDOM%2) ))'"
     44        IF STATUS = 0 THEN EXEC "/bin/bash -c '/bin/env | grep MONIT| cat - <(echo SUCCESS;echo)'"  
     45        REPEAT EVERY 1 CYCLES
     46
     47        IF STATUS !=0 THEN EXEC "/bin/bash -c '/bin/env | grep MONIT| cat - <(echo FAILURE;echo)'"
     48        REPEAT EVERY 1 CYCLES

[dab@d129668-005:/home/dab] /home/dab/scripts/monit -c /home/dab/UserDirs/dba/dev/utils/monit.conf -v | egrep -v 'proc file|system statistic|M/Monit'
M/Monit enabled but no httpd allowed -- please add 'set httpd' statement
Runtime constants:
 Control file       = /home/dab/UserDirs/dba/dev/utils/monit.conf
 Log file           = (not defined)
 Pid file           = /home/dab/.monit.pid
 Id file            = /local/data/scratch/monit.id
 State file         = /local/data/scratch/monit.state
 Debug              = True
 Log                = False
 Use syslog         = False
 Is Daemon          = True
 Use process engine = True
 Limits             = {
                    =   programOutput:     512 B
                    =   sendExpectBuffer:  256 B
                    =   fileContentBuffer: 512 B
                    =   httpContentBuffer: 1 kB
                    =   networkTimeout:    5 s
                    =   programTimeout:    30 s
                    =   stopTimeout:       10 s
                    =   startTimeout:      10 s
                    =   restartTimeout:    10 s
                    = }
 On reboot          = start
 Poll time          = 3 seconds with start delay 0 seconds
 Mail from          = Monit Support <[email protected]>
 Mail reply to      = [email protected]
 Mail subject       = $SERVICE $EVENT at $DATE
 Mail message       = Monit $ACTION $SERVI..(truncated)
 Start monit httpd  = False

The service list contains the following entries:

System Name           = d341369-005
 Monitoring mode      = active
 On reboot            = start
 Every                = Check service every 1 cycles

Program Name          = NodeManager
 Path                 = /bin/bash -c echo $(( 1/($RANDOM%2) ))
 Monitoring mode      = active
 On reboot            = start
 Program timeout      = terminate the program if not finished within 30 s
 Status               = if exit value != 0 then exec '/bin/bash -c /bin/env | grep MONIT| cat - <(echo FAILURE;echo)' repeat every 1 cycle(s)
 Status               = if exit value = 0 then exec '/bin/bash -c /bin/env | grep MONIT| cat - <(echo SUCCESS;echo)' repeat every 1 cycle(s)

-------------------------------------------------------------------------------
pidfile '/home/dab/.monit.pid' does not exist
Starting Monit 5.25.3 daemon
'd341369-005' Monit 5.25.3 started
'NodeManager' program started
'NodeManager' status succeeded (0) -- 1
'NodeManager' status failed (0) -- 1
'NodeManager' exec: '/bin/bash -c /bin/env | grep MONIT| cat - <(echo SUCCESS;echo)'
MONIT_PROGRAM_STATUS=0
MONIT_DATE=Tue, 29 Jan 2019 11:47:44
MONIT_HOST=d341369-005
MONIT_EVENT=Status failed
MONIT_SERVICE=NodeManager
MONIT_DESCRIPTION=status failed (0) -- 1
SUCCESS

'NodeManager' program started
'NodeManager' status failed (1) -- /bin/bash: 1/(5532%2) : division by 0 (error token is ") ")
'NodeManager' exec: '/bin/bash -c /bin/env | grep MONIT| cat - <(echo FAILURE;echo)'
'NodeManager' status succeeded (1) -- /bin/bash: 1/(5532%2) : division by 0 (error token is ") ")
'NodeManager' program started
MONIT_PROGRAM_STATUS=1
MONIT_DATE=Tue, 29 Jan 2019 11:47:47
MONIT_HOST=d341369-005
MONIT_EVENT=Status failed
MONIT_SERVICE=NodeManager
MONIT_DESCRIPTION=status failed (1) -- /bin/bash: 1/(5532%2) : division by 0 (error token is ") ")
FAILURE

'NodeManager' status succeeded (0) -- 1
'NodeManager' status failed (0) -- 1
'NodeManager' exec: '/bin/bash -c /bin/env | grep MONIT| cat - <(echo SUCCESS;echo)'
MONIT_PROGRAM_STATUS=0
MONIT_DATE=Tue, 29 Jan 2019 11:47:50
MONIT_HOST=d341369-005
MONIT_EVENT=Status failed
MONIT_SERVICE=NodeManager
MONIT_DESCRIPTION=status failed (0) -- 1
SUCCESS

'NodeManager' program started
'NodeManager' status succeeded (0) -- 1
'NodeManager' status failed (0) -- 1
'NodeManager' exec: '/bin/bash -c /bin/env | grep MONIT| cat - <(echo SUCCESS;echo)'
MONIT_PROGRAM_STATUS=0
MONIT_DATE=Tue, 29 Jan 2019 11:47:53
MONIT_HOST=d341369-005
MONIT_EVENT=Status failed
MONIT_SERVICE=NodeManager
MONIT_DESCRIPTION=status failed (0) -- 1
SUCCESS