Install JBoss as Windows Service

Env: JBoss EAP 6.4
Windows 7, 10

1- Get the native utility of JBoss. It is available if using JBoss jar installer. If you don't have it get the jar and install somewhere and copy the "native" directory from the following path to the same path of your JBoss:

EAP-6.4.0\modules\system\layers\base\

2- Use the following script and put it in a bat file on the same directory as JBoss directory, then run it.

set BASE=%~dp0

setx /M JBOSS_HOME %BASE%\jboss-eap
setx /M NOPAUSE 1
echo %BASE%

%BASE:~0,2%

cd %BASE%\jboss-eap\modules\system\layers\base\native\sbin

service.bat install /startup /name JBossAppSrv /jbossuser admin /jbosspass 'adminPass'

Just for clarification, the mandatory parts are:
Set system env variable JBOSS_HOME and NOPAUSE=1
Run the "service.bat install "command.

Ref: JBoss 6.4 Installation Guide

Some Grails Tricks

Set log level in running instance by console

import org.apache.log4j.*
Logger.getLogger("mt.omid.rira.DataService").level = Level.DEBUG

Set grails environment in app server (using same war file for test/release), great for testing in JBoss

Environment variable grails.env can be set to proper environment like development or production.
or

CATALINA_OPTS=-Dgrails.env=development

In JBoss System properties part in Configuration section accept key/value pair that is used for the same purpose.

Grails (Hibernate) Batch Insert/Update

To prevent memory issue and increase the performance of batch insert or update it can be divided into the smaller bunch data, e.g. 1000 records, and flush and clear the transaction after saving each bunch.

def batch = []  // temp batch list
dataList.each { d ->
    d.value = 'blah blah blah'
    batch.add(d)
    if(batch.size() > 1000)
       runBatch(batch)
}

And the runBatch can be a piece of code like this:

        log.debug("Start Data batch saving")
        Data.withTransaction {
            for(Data d in batch){
                log.debug "Saving datum: ${d} ${d.isDirty('value')}"
                // d.save(flush: true) // not required to flush here, since session will flush before clear
                d.save()
            }
        }
        batch.clear()
        def session = sessionFactory.getCurrentSession()
        session.flush()
        session.clear()
        log.debug("Batch saving transaction & clearing hbn session finished")

The hibernate details can be found here.