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Operating Systems Solaris Child killing parent process and how to set up SMF Post 302697815 by Bryan.Eidson on Friday 7th of September 2012 12:13:33 PM
Old 09-07-2012
Question Child killing parent process and how to set up SMF

Hello,

A little background on what we are doing first. We are running several applications from a CLI, and not all of them are fully functional. They do on occasion core dump, not a problem. We are running a service that takes a screen scrape of those apps and displays them in a more user friendly Java window. So this process is the parent of all of these applictions when run in the GUI.

When one of the applications core dumps, the service goes down and restarts, and after four times in a close span, it doesn't come back up because it is "restarting too quickly." We can deal with the core dumps on their own, but having the whole process go down stops other users from running other applications through the GUI.

My question is how do I set it so when the child process errors out the parent will ignore it and keep on chugging. And if that is not possible, the next solution, although not ideal, would be to change it so the restarter does not decide that after four restarts it will throw the service into maintenance mode.

Any help or direction would be amazing.

Thank you,
Bryan

I have tried adding the following to the manifest, but it so far does not seem to make a difference.
<property_group name='startd' type='framework'>

<propval name='ignore_error' type='astring'

value='core,signal' />
<propval name='duration' type='astring'
value='transient' />

</property_group>

Also, this is all on solaris 10, and the program is called infonet if that is relevant.

Last edited by Bryan.Eidson; 09-07-2012 at 01:27 PM.. Reason: more information
 

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cmrunserv(1m)															     cmrunserv(1m)

NAME
cmrunserv - run a service from the high availability package run script SYNOPSIS
cmrunserv [-v] service_name service_command_string cmrunserv [-v] [-r restarts] service_name service_command_string cmrunserv [-v] [-R] service_name service_command_string DESCRIPTION
cmrunserv is used in the high availability package run script to run a service. To start package's service, a user must either be superuser(UID=0), or have an access policy of FULL_ADMIN allowed in the cluster configu- ration file. See access policy in cmquerycl(1m) or cmmakepkg(1m). If the service process dies, cmrunserv updates the status of the service to down. The cluster software will recognize the change in status and execute the normal package recovery sequence. This includes executing the package halt script, determining if the package can be run on a different node, and, if so, executing the package run script on the new node. Should the service_command be halted by the cmhaltserv command, a SIGTERM signal will be sent to the process. This executable or shell script should be able to handle a SIGTERM signal and execute a graceful shutdown performing any cleanup necessary. If the process ignores the SIGTERM, a SIGKILL will be sent to the process. If a SIGKILL is sent, the process will die immediately and will be unable to perform any cleanup. Options cmrunserv supports the following options. -v Verbose output will be displayed. -r restarts Indicates that the service should be automatically restarted by the cluster software if it fails, without halting the package. restarts indicates how many times the service may fail before the package should be halted. -R Indicates the service should be restarted an unlimited number of times if it fails. service_name Name of the service as it exists in the package configuration information. service_command_string Process string to be started. This includes the process name and any arguments necessary for the process to run. The process name must be a full path, may be either a command name or a shell script, and must be executable. RETURN VALUE
cmrunserv returns the following values: 0 Successful completion. 1 Command failed. EXAMPLES
To run the service command string /var/opt/db/database1 under the service name db1, do the following: # Run the process /var/opt/db/database1 cmrunserv db1 /var/opt/db/database1 This line should only be executed within a package run script. AUTHOR
cmrunserv was developed by HP. SEE ALSO
cmhaltserv(1m), cmquerycl(1m), cmmakepkg(1m), cmmodnet(1m). Requires Optional Serviceguard Software cmrunserv(1m)
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