Opinion on auto-restart of failed apps/services Post: 302523365

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Top Forums UNIX for Advanced & Expert Users Opinion on auto-restart of failed apps/services Post 302523365 by mglenney on Wednesday 18th of May 2011 04:45:43 PM

05-18-2011

Registered User

Opinion on auto-restart of failed apps/services

I'm becoming a dying breed where I work. More and more sys admins are advocating automatically restarting failed services such as tomcat, jboss, etc. I've always been against doing this except with buggy apps that can't be fixed or avoided.

My main argument is that I feel it's a trick used by lazy sys admins who don't want to troubleshoot their apps. Almost everything we have that is customer facing is behind a load balancer (we have a lot of customers). If the LB is properly configured, it will pull a node out of the rotation if it fails a health check. If the pool is sized properly it will have at least n+1 servers running and should be able to handle the load if one node dies or is removed. I feel we should let the app fail, alert on it, remove it from the pool, and troubleshoot it to find out why. Turn up a new node to take it's place if necessary. If the bad app is auto restarted and it is indeed bad, we will continue to route customers to it and it could negatively affect them.

They argue that "apps just fail" and that we should restart them asap to keep them up and servicing customers.

I'm starting to feel like the old geezer of the group and these damn kids won't get off my lawn. If you wouldn't mind, please let me know your take on this. I'm not looking for everyone to agree with me and I'm not against changing my views. They just haven't provided a good argument.

Thanks,

MG

mglenney

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ideviceinstaller

ideviceinstaller(1)					      General Commands Manual					       ideviceinstaller(1)

NAME

       ideviceinstaller - Manage iDevice apps

SYNOPSIS

       ideviceinstaller [OPTIONS]

DESCRIPTION

       Allows to install, upgrade, uninstall, archive, restore and enumerate installed or archived apps on iDevices.

OPTIONS

   General options:
       -d, --debug
	      enable communication debugging.

       -U, --uuid UUID
	      target specific device by its 40-digit device UUID.

       -h, --help
	      prints usage information

   Commands:
       -l, --list-apps
	      list apps installed on the device.

	      Additional options:

	      -o list_user
		     list user apps only (apps installed by the user) This is the default.

	      -o list_system
		     list system apps only (apps available from the system firmware)

	      -o list_all
		     list all types of apps

	      -o xml print output in xml format (PList)

       -i, --install ARCHIVE
	      install app from a package file specified by ARCHIVE.

       -u, --uninstall APPID
	      uninstall app specified by APPID.

       -g, --upgrade APPID
	      upgrade app specified by APPID.

       -r, --restore APPID
	      restore archived app specified by APPID.

       -L, --list-archives
	      list archived applications on the device.

	      Additional options:

	      -o xml print output in xml format (PList)

       -a, --archive APPID
	      archive app specified by APPID.

	      Additional options:

	      -o uninstall
		     uninstall the package after making an archive

	      -o app_only
		     archive application data only

	      -o copy=PATH
		     copy the app archive to directory PATH when done

	      -o remove
		     only valid when copy=PATH is used: remove after copy

       -R, --remove-archive APPID
	      remove app archive specified by APPID.

AUTHOR

       This manual page was written by Martin Szulecki.

															       ideviceinstaller(1)