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Full Discussion: Startup scripts
Operating Systems HP-UX Startup scripts Post 302104325 by sb008 on Wednesday 24th of January 2007 06:07:46 PM
Old 01-24-2007
Quote:
Originally Posted by blowtorch
All service startups in unix are handled by /sbin/rc? scripts. Just replace the ? by the runlevel. In this case, since it will be applications and databases that will be starting up, the startup script is /sbin/rc3. The /sbin/rc3 script in turn calls different scripts in the /sbin/rc3.d directory. You can write the startup scripts for the dbase/app and put it in the /sbin/rc3.d directory.

If you are new to the unix world, you might want to read up on how the HP-UX system boots.

Startup scripts do not belong in the rc<number>.d directories but in the init.d directory.

In the rc<number>.d directories you create links to a script in the init.d directory.

The format of these links is [S|K]NNN<scriptname


In your /sbin/rc3.d directory could have something like:
lrwxr-xr-x 1 root ... S430nfs.client -> /sbin/init.d/nfs.client

S means it will start an application/service
K means it will kill an application/service

NNN decide the order in which applications/services are started/stopped

The /sbin/rc script will start/stop all applications/services mentioned in your rc<number>.d directories. The run level will decide which which directories are covered.

Looking at the S430nfs.client link, the /sbin/rc script will make sure the script /sbin/init.d/nfs.client is executed with as argument "start".

if a link starts with K the corresponding script in /sbin/init.d is executed with argument "stop" .

So, the scripts in /sbin/init.d should have a "start" and "stop" section. Which section will be executing depends on the argument "start" or "stop".

Besides creating the "start links" it is most importing to create the "kill links" as well.

Whenever you shutdown you want your applications/services to be closed in a proper way and not in the rough way cause the system in the end starts to kill all applications/services like that. A "kill -9" on your Oracle processes could cause damage to your database.

For detailed information check the HP-UX documentation
 

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Jifty::DBI::Handle::Oracle(3pm) 			User Contributed Perl Documentation			   Jifty::DBI::Handle::Oracle(3pm)

NAME
Jifty::DBI::Handle::Oracle - An oracle specific Handle object SYNOPSIS
DESCRIPTION
This module provides a subclass of Jifty::DBI::Handle that compensates for some of the idiosyncrasies of Oracle. METHODS
connect PARAMHASH: Driver, Database, Host, User, Password Takes a paramhash and connects to your DBI datasource. database_version Returns value of ORA_OCI constant, see "Constants" in DBD::Oracle. insert Takes a table name as the first argument and assumes that the rest of the arguments are an array of key-value pairs to be inserted. build_dsn PARAMHASH Takes a bunch of parameters: Required: Driver, Database or Host/SID, Optional: Port and RequireSSL Builds a dsn suitable for an Oracle DBI connection blob_params column_NAME column_type Returns a hash ref for the bind_param call to identify BLOB types used by the current database for a particular column type. The current Oracle implementation only supports ORA_CLOB types(112). apply_limits STATEMENTREF ROWS_PER_PAGE FIRST_ROW takes an SQL SELECT statement and massages it to return ROWS_PER_PAGE starting with FIRST_ROW; distinct_query STATEMENTREF takes an incomplete SQL SELECT statement and massages it to return a DISTINCT result set. AUTHOR
Jesse Vincent, jesse@fsck.com SEE ALSO
Jifty::DBI, Jifty::DBI::Handle, DBD::Oracle perl v5.14.2 2011-04-26 Jifty::DBI::Handle::Oracle(3pm)
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