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Top Forums UNIX for Advanced & Expert Users Opinion on auto-restart of failed apps/services Post 302525062 by Create on Wednesday 25th of May 2011 02:57:37 PM
Old 05-25-2011
Most of the servers I administer are behind a load balancer just like yours and they come out of a pool when they are acting up. However, what I tend to do (for tomcat applications for example) is get a thread dump of what the application is doing at the time, get all the logs, as well as what processes including memory/cpu usage are running on the system. I then use this to debug it. If this is a single point of failure I go for the quick restart after collecting as much data as possible.

Our uptime is managed by service availability, but our SLA's include hosts/services on those hosts. So I am required to respond to them even if the service is still functioning properly.
 

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ypinit(1M)						  System Administration Commands						ypinit(1M)

NAME
ypinit - set up NIS client SYNOPSIS
/usr/sbin/ypinit [-c] [-m] [-s master_server] DESCRIPTION
ypinit can be used to set up an NIS client system. You must be the superuser to run this command. This script need not be used at all if ypbind(1M) is started with the -broadcast option (it is invoked with this option from the svc:/network/nis/client:default service). Normally, ypinit is run only once after installing the system. It may be run whenever a new NIS server is added to the network or an existing one is decommissioned. ypinit prompts for a list of NIS servers to bind the client to; this list should be ordered from the closest to the furthest server. Each of these NIS servers must be listed in either the /etc/hosts or the /etc/inet/ipnodes file along with its IP address. ypinit stores the list in file /var/yp/binding/domain/ypservers. This file is used by ypbind when run without the -broadcast option. OPTIONS
-c Set up a ypclient system. -m Build a master ypserver data base. -s master_server Slave data base. master_server must be the same master configured in the YP maps and returned by the ypwhich -m command. FILES
/etc/hosts /etc/inet/ipnodes /var/yp/binding/domain/ypservers ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWnisu | +-----------------------------+-----------------------------+ SEE ALSO
svcs(1), svcadm(1M), ypbind(1M), sysinfo(2), hosts(4), ipnodes(4), attributes(5), smf(5) NOTES
The NIS client service is managed by the service management facility, smf(5), under the service identifier: svc:/network/nis/client:default Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). The ser- vice's status can be queried using the svcs(1) command. BUGS
ypinit sets up the list of NIS servers only for the current domain on the system when it is run, that is, the domain returned by the SI_SRPC_DOMAIN command to sysinfo(2). Care should be taken to ensure that this is the same as the desired domain for NIS client processes. SunOS 5.10 13 Aug 2004 ypinit(1M)
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