How to read value of -Xmx from my Java application?

Hi
I need to ensure that may application is always running with 256 MB of heap size. Can we read this value from Java applicatio so that I can force the user to ensure the setttings.
I tried using Runtime.getRuntime().maxMemory(), but it gives me back the "reserved" space for the heap.
Any better solution?
Thanks in advance
Jobinesh

You can use maxMemory() like:
final long maxMemory = Runtime.getRuntime().maxMemory() / 1048576;
System.out.println(maxMemory + "M");but you need to be aware of certain things. For example the fact that the underlying system might not allow maxMemory() bytes to be allocated.
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4686462
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4879849

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Lisa
Oct Sold 12
Oct Sold 12-2
Oct Sold 12-3
149
Vase Lidded
25
201
Bird
7
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yes the script is in /usr/local/mss/tools/backup and the script (msp_restore_gui) is as follows
#!/bin/sh
TIMESTAMP=`date +%d_%b_%y-%H-%M`
touch /var/backups/mss/mss_restore_"$TIMESTAMP".log
LOGFILE="/var/backups/mss/mss_restore_"$TIMESTAMP".log"
### Explode tgz file
cd /
# Checks to be done:
# root login
# assume he passes the parameter as msp_backup_<timestamp>
# check for the existence of the .tz and fileList.txt
# Checking for the root login and if not logged on as root
# permission will be denied to execute this script
logmsg(){
echo "`date`: $*" >> $LOGFILE 2>&1
echo "$*"
#usage of this script
while [ $# -ne 0 ]
do
case $1 in
-n)
shift
ARCHIVE_NAME=`find / $ -name "$1.tz" -o -name "$1.tgz" $ 2>/dev/null`
FILE_NAME=`find / -name $1_filesList.txt 2>/dev/null`
if [ x$ARCHIVE_NAME = x -a y$FILE_NAME = y ]
then
logmsg "ERROR: Files not found, Restore cannot proceed"
usage
else
tar tvzf $ARCHIVE_NAME > /dev/null 2>&1
if [ $? -ne 0 ]
then
echo "ERROR: The tar file $ARCHIVE_NAME is not proper. Restore cannot proceed"
exit 1
else
          echo "Backedup files are present, proceeding with restore......" >> $LOGFILE 2>&1
fi
fi
usage
SKIP_CLEANUP=1
STATUS=1
exit
esac
shift
done
rm -rf ./newfile
curr_ver_file="/usr/local/mss/etc/version"
/usr/local/mss/tools/backup/check_version $curr_ver_file $FILE_NAME
ret_code=$?
echo "Exit value of check_version is $ret_code"
if [ "$ret_code" != 0 ]
then
logmsg "MSP Version not matching. Exiting from restore now...."
errormsg=`cat /usr/local/mss/temp/ver_err_mesg`
logmsg $errormsg
rm -f /usr/local/mss/temp/ver_err_mesg
exit 1
else
echo "Version check is successful"
fi
#### ShutDown MSS########
/etc/init.d/mss stop
sleep 2
### Shutdown semm
/etc/init.d/semm stop
sleep 2
rm -rf `grep -v "MSP Version:" $FILE_NAME`
logmsg "MSP restore in progress......"
tar mxvfz $ARCHIVE_NAME >> $LOGFILE
sleep 5
### Call mysql restore script
/usr/local/mss/bin/mysql_alldb_restore.sh >> $LOGFILE 2>&1
if [ $? -ne 0 ]; then
logmsg "Database restore Failed. Cannot proceed further"
exit 1 ;
else
logmsg "Database restore Succeeded."
fi
### Remove DB Dump Files
rm -f /var/lib/mysql-dumps/*
### Trigger cleanup of airprism database tables
#touch /usr/local/mss/airprism/server/config/reinitdb
### Trigger re-import of software packages
touch /usr/local/mss/swdepot/reimport
### Remove log files under the "apps" directory
find /usr/local/mss/apps -name '*.log*' | xargs rm -f
find /usr/local/mss/logs -follow -name '*[._]log*' | xargs rm -f
if [ $? -ne 0 ]; then
logmsg "MSP restore Failed. Cannot proceed further"
exit 1 ;
else
logmsg "MSP restore Succeeded."
fi
# reinstall_patch is touched so that patches are re-installed after restoring of MSP.
touch /usr/local/mss/patch/bin/reinstall_patch
##### Start MSS
logmsg "restarting MSP server "
/etc/init.d/mss start
sleep 5
### Start semm
/etc/init.d/semm start
sleep 5
logmsg "MSP server is now restarted"
my jsp page backup.jsp is as follows
<%@taglib uri="portlet.tld" prefix="uif" %>
<%@taglib uri="msp-console.tld" prefix="msp" %>
<uif:defineObjects/>
<%@page import="javax.portlet.*" %>
<%@ page import="java.util.Date" %>
<%@ page import="java.util.Vector" %>
<%@ page import="java.text.DateFormat" %>
<%@ page import="com.symbol.mss.console.admin.backup.BackupManager" %>
<%@ page import="com.symbol.mss.console.admin.system.SystemInfoPortlet" %>
<%
     String STYLE_NAME = request.getParameter("style");
     if (STYLE_NAME == null) STYLE_NAME = STYLE_DEFAULT;
     final String ua = request.getHeader("User-Agent");
     BackupManager helper = null;
     PortletSession portletSession = renderRequest.getPortletSession();
     helper = (BackupManager)portletSession.getAttribute("helper");
     if (helper == null) {
          //System.err.println("Created new BackupManager");
          helper = new BackupManager();
          portletSession.setAttribute("helper", helper);
     final BackupManager backupManager = helper;
     String action = "";
     final String backupName = renderRequest.getParameter("backupName");
     String completePath = backupManager.getBackupDir() + backupName + backupManager.getBackupFileExt();
     if (backupName != null) {
          action = "backup";
     if(backupManager.backup(backupName)) {
          SystemInfoPortlet.beginRestartMSP();
          } else {
               action = "backuperror";
     final String cmd = renderRequest.getParameter("submitButton");
final String selectedBackup = renderRequest.getParameter("selectedBackup");
int tarFileStatus =0;
String backupTarFile ="";
String backupFileList ="";
     if ("Restore".equals(cmd)) {
if (selectedBackup != null) {
     tarFileStatus = backupManager.verifyTarFile(selectedBackup);
     //backupTarFile = backupManager.getRestoreFile(Integer.parseInt(selectedBackup));
     //backupFileList = backupTarFile.substring(0, backupTarFile.lastIndexOf(backupManager.getBackupFileExt()))+"_filesList.txt";
               if (tarFileStatus == 0){
     action = "restore";
     backupManager.restore(selectedBackup);
                    SystemInfoPortlet.beginRestartMSP();
          } else {
               action = "error";
} else if ("Remove".equals(cmd)) {
backupManager.remove(Integer.parseInt(selectedBackup));
     DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.SHORT);
     PortletURL restoreURL = renderResponse.createActionURL();
%>
<%@ include file="/jsp/core/constants.jspf" %>
<% if (action.length() > 0) {
     if ("backup".equals(action))
%>
     <p>The MSP Appliance has been shut down in order to create the <%=backupName %> backup file,
          and will automatically restart as soon as the file has been created.
          To continue your work, please log out of the MSP Console, wait for the appliance
          to restart, and then log back in. The amount of time you'll have to wait for the
          MSP Appliance to come back online depends on the amount of information you have
          stored in the MSP Database.</p>
     <p>The full pathname for the backup file is: <%=completePath %></p>
<%     }
     else if ("restore".equals(action))
%>
     <p>The MSP Appliance has been shut down in order to restore from the <%=backupTarFile%> backup file,
          and will automatically restart as soon as the restore is complete.
          To continue your work, please log out of the MSP Console, wait for the appliance
          to restart, and then log back in. The amount of time you'll have to wait for the
          MSP Appliance to come back online depends on the amount of information you have
          stored in the MSP Database.</p>
<%     } else if ("backuperror".equals(action)) { %>
          <p><img src="images/dialogue/error_16.gif" class="icon" alt="Notify" /> Errors occurred while taking back up of MSP. Please see the backup service log file for more details.
          </P>
<%     } else if ("error".equals(action)) {
          if (tarFileStatus == 4) { %>
               <p><img src="images/dialogue/error_16.gif" class="icon" alt="Notify" /> The backup file <%=backupTarFile%> contains errors. This backup can't be restored. Please restore a valid back up.
               </P>
          <%} else if (tarFileStatus == 3) { %>
               <p><img src="images/dialogue/error_16.gif" class="icon" alt="Notify" /> The backup file list <%=backupFileList %> is missing. This file is required to restoring backup. Please get the backup file list and proceed with restoring backup.</p>
          <%} else if (tarFileStatus == 2) { %>
               <p> <img src="images/dialogue/error_16.gif" class="icon" alt="Notify" /> The backup file <%=backupTarFile%> contains errors and the backup file list <%=backupFileList%> is missing. This backup can't be restored. </p>
          <%} %>
<%     }
} else { %>
<p><strong>Note</strong>: Both backup and restore will shut down MSP temporarily. MSP will be unable to collect data from devices, send notifications, or provide MSP Console access during this time. When the backup or restore operation is complete, MSP will come back online automatically.</p>
<h3>Backup</h3>
<form action="<%= restoreURL.toString() %>" method="post">
<p>Please provide a name for your backup. MSP will provide the date automatically in the list of backups.</p>
<p><label for="<uif:namespace />backupName">Name</label> <input type="text" name="<uif:namespace />backupName" id="<uif:namespace />backupName" size="20" maxlength="256" /> <input type="submit" name="<uif:namespace />submitButton" value="Back up now" onclick="return <uif:namespace/>validateName()"/></p>
</form>
<h3>Restore</h3>
<p>This will restore all databases (device assets, collected device data, software packages, policies, etc.) to their state as of the time the backup was made. Changes since then <em>except for backups</em> will be destroyed.</p>
<%
Vector restoreList = helper.getRestoreEntries();
Vector restoreDates = helper.getRestoreDates();
Vector restoreVersions = helper.getRestoreVersions();
Vector filesStatus = helper.getBackupFilesStatus();
%>
<% if (restoreList.size() == 0) { %>
<p>There are no backups currently available.</p>
<% } else { %>
<form action="<%= restoreURL.toString() %>" method="post">
<table class="input-radios" id="<uif:namespace />existingBackups">
<thead>
<tr>
<th></th>
<th>Name</th>
<th>Date</th>
<th>MSP Version</th>
<th>Remarks </th>
</tr>
</thead>
<tfoot>
<tr>
<td colspan="4" class="actionsOnSelected">
<input type="submit" name="<uif:namespace />submitButton" value="Restore" onclick="return confirm('This action requires MSP and all related services to be shut down. Console will be unavailable if the request is submitted. The server will restart automatically once restore has been completed.');" />
<input type="submit" name="<uif:namespace />submitButton" value="Remove" onclick="return confirm('This action will remove the backup archive. You will no longer be able to restore this backup. Continue?');" />
</td>
</tr>
</tfoot>
<tbody><%-- First one (most recent) is checked by default. Every other row has class="portlet-section-alternate". Note that each ID must be unique and must match the value of the "for" attribute on the corresponding "label" element. --%>
<%
for (int i = 0; i < restoreList.size(); i++) {
%>
<tr <%= (i % 2 == 1) ? " class=\"portlet-section-alternate\"" : "" %>>
<td><input type="radio" name="<uif:namespace />selectedBackup" value="<%= i %>" id="<uif:namespace />selectedBackup-<%= i %>" <%= (i == 0) ? "checked=\"checked\"" : "" %> /></td>
<td><label for="<uif:namespace />selectedBackup-<%= i %>"><%= restoreList.elementAt(i) %></label></td>
<td><%= dateFormat.format((Date)restoreDates.elementAt(i)) %></td>
<td><%= restoreVersions.elementAt(i) %></td>
<td><%= filesStatus.elementAt(i) %></td>
</tr>
<%
%>
</tbody>
</table>
</form>
<% } %>
<% } %>
<script type="text/javascript">
<![CDATA[//><!]]>
</script>
and my BackupManager.java is as follows where the code in bold and italic is called the restore()
//============================================================================
// Symbol Technologies P R O P R I E T A R Y S O U R C E C O D E
// C O N F I D E N T I A L
// Copyright (c) 2003 Symbol Technologies. All Rights Reserved.
// All information contained herein is the property of Symbol Technologies,
// or its Licensors, and are protected copyrights and trade secrets, and may
// be covered by U.S. patents. Any reproduction or dissemination of any
// portion of this document, of the software, or other works derived from it
// is strictly forbidden unless prior written permission is obtained from
// Symbol Technologies.
//============================================================================
package com.symbol.mss.sdf.services.backup;
import java.io.*;
import java.sql.Time;
import java.text.DateFormat;
import java.util.logging.FileHandler;
import java.util.logging.Formatter;
import java.util.logging.LogRecord;
import java.lang.Process;
import java.util.*;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.logger.LogEnabled;
import org.apache.avalon.framework.logger.Logger;
import com.symbol.mss.sdf.admin.AdministratorService;
import com.symbol.mss.sdf.backup.*;
import com.symbol.mss.sdf.data.*;
* @author nramaiah
* Service to perform scheduled backups of the system state.
public class BackupManager implements BackupService, DataHandler,
LogEnabled, Configurable {
// MSS Home Path
private static String mssHome = System.getProperty("phoenix.home", File.separator + "usr" +
File.separator + "local" +
File.separator + "mss" +
File.separator);
// Backup related definitions
private static final String BACKUP_LIST_FILE_NAME = "conf" + File.separator + "files_to_backup.txt";
private static final String BACKED_UP_LIST_FILE_NAME_SUFFIX = "_filesList.txt";
private static final String BACKUP_LOCATION = File.separator + "var" + File.separator + "lib" +
File.separator + "mss-backups" + File.separator;
private static final String BACKUP_PARTITION = File.separator + "var" + File.separator + "lib";
private static final String VERIFY_BACKUP = File.separator + "usr" + File.separator + "local" +
                                                       File.separator + "mss" + File.separator+"tools"+
                                                       File.separator+"backup"+File.separator+"verifyBackup.sh";
// DB backup/restore related definitions
private static final String DB_DUMP_LOCATION = File.separator + "var" + File.separator +
"lib" + File.separator +
"mysql-dumps" + File.separator;
private static final String DB_BACKUP_SCRIPT = "bin" + File.separator + "mysql_alldb_backup.sh";
private static final String DB_RESTORE_SCRIPT = "bin" + File.separator + "mysql_alldb_restore.sh";
// Private variables
private AdministratorService m_admin = null;
private Logger m_logger = null;
private String backupLocation = null;
private String backupListFileName = null;
private String backupPartition = null;
private int backupPartitionLimit = 90;
private String dbDumpLocation = null;
private String dbBackupScript = null;
private String dbRestoreScript = null;
private List servicesBackupList = null;
private String tarFileExtension =".tgz";
private String errFileExtension =".err";
private int exitValue=0;
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public BackupManager() {
servicesBackupList = new ArrayList();
* Set the administrator service implementation. Link established by Broker service.
* @param admin reference to an implementation of AdministratorService
public void setAdministrator(AdministratorService admin) {
m_admin = admin;
* Set the job publisher service implementation. Link established by Broker service.
* @param jobPublisher reference to an implementation of JobPublisherService
public void setJobPublisher(DataChannel jobPublisher) {
jobPublisher.subscribe(this);
* Gets the backup manager object.
* @return backup manager object
public BackupService getBackupService() {
return this;
* Service lifecycle method.
* @param logger logger object to be used by the service
public void enableLogging(Logger logger) {
m_logger = logger;
* Service lifecycle method.
* @param configuration service configuration object
public void configure(Configuration configuration) throws ConfigurationException {
// Verify MSS Home path
if (!mssHome.endsWith(File.separator))
mssHome += File.separator;
// Get the location where the backup file needs to be placed
backupLocation = configuration.getChild("BackupLocation").getValue(BACKUP_LOCATION);
// Verify backup directory path
if (!backupLocation.startsWith(File.separator))
backupLocation = mssHome + backupLocation;
if (!backupLocation.endsWith(File.separator))
backupLocation += File.separator;
// Get the file listing the files/directories to be backed up
backupListFileName = configuration.getChild("FilesList").getValue(BACKUP_LIST_FILE_NAME);
// Verify backup list file name path
if (!backupListFileName.startsWith(File.separator))
backupListFileName = mssHome + backupListFileName;
// Get the partition where the backups are kept
backupPartition = configuration.getChild("BackupPartition").getValue(BACKUP_PARTITION);
// Verify backup partition path
if (!backupPartition.startsWith(File.separator))
backupPartition = File.separator + backupPartition;
if (backupPartition.endsWith(File.separator))
backupPartition = backupPartition.substring(0, (backupPartition.length()-1));
// Get the limit on the amount of free space on the backup partition
backupPartitionLimit = configuration.getChild("BackupPartitionLimit").getValueAsInteger(backupPartitionLimit);
// Get the location where the DB dump files will be placed
dbDumpLocation = configuration.getChild("DBDumpLocation").getValue(DB_DUMP_LOCATION);
// Verify DB dump directory path
if (!dbDumpLocation.startsWith(File.separator))
dbDumpLocation = mssHome + dbDumpLocation;
if (!dbDumpLocation.endsWith(File.separator))
dbDumpLocation += File.separator;
// Get the name of DB dump backup script
dbBackupScript = configuration.getChild("DBBackupScript").getValue(DB_BACKUP_SCRIPT);
// Verify backup script path
if (!dbBackupScript.startsWith(File.separator))
dbBackupScript = mssHome + dbBackupScript;
// Get the name of DB dump restore script
dbRestoreScript = configuration.getChild("DBRestoreScript").getValue(DB_RESTORE_SCRIPT);
// Verify restore script path
if (!dbRestoreScript.startsWith(File.separator))
dbRestoreScript = mssHome + dbRestoreScript;
* Individual services can supply a list of files/directories to be backed up.
* These are files apart from the files specified in conf/files_to_backup.txt and
* will be backed up as well.
* @param files list of files/directories
public void filesToBackup(List files) {
synchronized(this) {
if (files != null) {
if (files.size() > 0) {
// Add the list contents to the current backup list
for (int i=0; i<files.size(); i++) {
String tStr = (String)files.get(i);
// Check for absolute or relative path
if (tStr.startsWith(File.separator))
servicesBackupList.add(tStr);
else
servicesBackupList.add(mssHome + tStr);
else
m_logger.info("Empty list of filenames. Nothing added.");
else
m_logger.info("Null list of filenames. Nothing added.");
* Individual services can supply a list of files/directories to be backed up.
* Specified files will be added to the file defining the list of files to be backed up.
* @param files list of files/directories
private void persistFilesToBackup(List files) {
synchronized(this) {
if (files != null) {
if (files.size() > 0) {
// Add the list of files provided to the end of file
try {
File file = new File(backupListFileName);
if ((file == null) || (!file.exists()))
file.createNewFile();
// Seek to the end of the file
RandomAccessFile rFile = new RandomAccessFile(file, "rw");
if (rFile != null) {
rFile.seek(rFile.length());
// Write the list contents to the file
for (int i=0; i<files.size(); i++) {
String tStr = (String)files.get(i);
// Check for absolute or relative path
if (tStr.startsWith(File.separator))
rFile.writeBytes(tStr + "\n");
else
rFile.writeBytes(mssHome + tStr + "\n");
else
m_logger.error("Error opening file " + backupListFileName);
rFile.close();
catch (Exception ex) {
ex.printStackTrace();
m_logger.error("Error adding entries to file " + backupListFileName, ex);
else
m_logger.info("Empty list of filenames. Nothing added.");
else
m_logger.info("Null list of filenames. Nothing added.");
* Command to be run during the backup process. Individual services can
* provide shell commands that will be executed before backing up the files.
* @param command shell command to be executed
private void runCommand(String command) {
* Creates a shell script at the specified location that will backup the
* files listed in the List passed in.
* @param scriptFileName location where the script needs to be created
* @param backupFileName name for the tar file being created
* @param backupList list of files to be backed up
private void createBackupScript(String scriptFileName, String backupFileName, ArrayList backupList) throws Exception {
// Create a new StringBuffer to build the contents to be written to the script file
StringBuffer buffer = new StringBuffer();
// Add the initial comment in the start script
buffer.append("#!/bin/sh\n" + "set -x\n\n");
// Check if the partition has enough space
buffer.append("### Check if the partition has enough space\n" +
// "diskUsed=`df -k | grep \"" + backupPartition + "\" | awk '{print $5}' | cut -d\"%\" -f1`\n" +
               " diskUsed=`df -k \"" + backupPartition + "\" | awk '{print $5}' | cut -d\"%\" -f1 | grep -v Use`\n" +
"echo \"Partition " + backupPartition + " is $diskUsed% used.\"\n" +
"if [ \"$diskUsed\" -lt \"" + backupPartitionLimit + "\" ]\nthen\n" +
" echo \"Starting backup...\"\n\n");
// Shutdown semmd
buffer.append(" ### Shutdown semm\n" + " /etc/init.d/semm stop\n" +
" sleep 2\n\n");
// MSP Limited release and earlier builds stop mysql DB and backup the
// /var/lib/mysql directory as it is. Starting MSP 1.0 GA release, mysql
// dump script will be integrated which will create sql scripts to
// restore the database.
// Check if mysql dump creation script exists
File mysqlDumpScript = new File(dbBackupScript);
if (mysqlDumpScript.exists()) {
// MSP 1.0 GA and later releases
// Run the script that will generate sql scripts that would re-create the DB as it is
buffer.append(" ### Call mysql dump script\n" +
" " + dbBackupScript + "\n\n");
else {
// MSP Limited release
// Add command to shutdown mysql
buffer.append(" ### Shutdown mysql\n" + " /etc/init.d/mysql stop\n\n");
// Change to root directory and create the tgz file
buffer.append(" ### Create tgz file\n" + " cd /\n");
// Build up the tar file name from the current date and time
String fileName = null;
if ((backupFileName != null) && (backupFileName.length() > 0))
fileName = backupFileName;
else {
// File name not provided by user, build one using the timestamp
Calendar cal = Calendar.getInstance();
Date date = cal.getTime();
fileName = "MSS-"
+ DateFormat.getDateInstance().format(date).replaceAll(" ", "").replaceAll(",", "")+ "-"
+ (new Time(cal.getTimeInMillis())).toString().replaceAll(":", "").substring(0,4);
String tarFileName = fileName + ".tgz";
// Get the current MSP Version
String mspVersion = getMSPVersion();
// Gather all the files to be backed up. Add them to the tar command and
// also dump them into the file maintaining the list of files being backed up
String listStr = "";
for (int i=0; i<backupList.size(); i++)
listStr += (String)backupList.get(i) + "\n";
// Dump the current MSP version and the list of files being backed up into a manifest file
String listFileName = fileName + BACKED_UP_LIST_FILE_NAME_SUFFIX;
RandomAccessFile file = new RandomAccessFile(backupLocation + listFileName, "rw");
m_logger.info("List of files/directories being backed up:\n" + listStr);
file.writeBytes("### MSP Version: " + mspVersion + " ###\n");
file.writeBytes(listStr);
file.close();
// Add the tar command to the script
buffer.append(" echo \"Creating " + backupLocation + tarFileName + "...\"\n" +
" tar cvhfz " + backupLocation + tarFileName + " `grep -v \"MSP Version:\" " +
backupLocation + listFileName + "`\n\n");
// Check if free space on the backup partition has reduced below the limit
// If enough space left, backup is retained, "mss" is made the owner of the files,
// "backup" is made the group the files belong to,
// permissions changed to be "0660" and
// backup action declared a success
// Else, backup files are deleted and declared a failure
buffer.append(" ### Check if the partition has enough space left\n" +
//" diskLeft=`df -k | grep \"" + backupPartition + "\" | awk '{print $5}' | cut -d\"%\" -f1`\n" +
" diskLeft=`df -k \"" + backupPartition + "\" | awk '{print $5}' | cut -d\"%\" -f1 | grep -v Use`\n" +
" echo \"Partition " + backupPartition + " is $diskLeft% used.\"\n" +
" if [ \"$diskLeft\" -gt \"" + backupPartitionLimit + "\" ]\n" +
" then\n" +
" ### Failure\n" +
" echo \"Partition " + backupPartition + " does not have enough space.\"\n" +
" echo \"Backup " + backupLocation + tarFileName + " will be removed.\"\n" +
" rm -f " + backupLocation + fileName + "*\n" +
" echo \"Backup Failed.\"\n" +
" else\n" +
                    " tar tvzf " + backupLocation + tarFileName + " > /dev/null 2>&1\n" +
" if [ ! -s " + backupLocation + tarFileName + " -o $? -ne 0 ] \n" +
                    " then\n" +
                    " echo \"MSP Backup operation is not successful. The tar file " + backupLocation + tarFileName + " contains errors.\"\n" +
                    " echo \"Please take the backup again\"\n" +
                    "     touch "+backupLocation+fileName+".err\n" +
" else \n" +
" ### Success\n" +
" ### Change the owner, group and permissions for the backup files\n" +
" chown mss " + backupLocation + fileName + "*\n" +
" chgrp backup " + backupLocation + fileName + "*\n" +
" chmod 0660 " + backupLocation + fileName + "*\n" +
" echo \"Backup Completed.\"\n" +
" fi\n" +
" fi\n\n");
// MSP Limited release and earlier builds re-start mysql. Starting
// MSP 1.0 GA release, mysql is not stopped and so re-start is not
// needed. sql scripts created by the dump script get packed into
// the tar file and so are deleted.
// Check if mysql dump creation script exists
if (mysqlDumpScript.exists()) {
// MSP 1.0 GA and later releases
// Remove DB dump files
buffer.append(" ### Remove DB Dump Files\n" + " rm -f " + dbDumpLocation + "*\n\n");
else {
// MSP Limited release
// Start mysql
buffer.append(" ### Start mysql\n" + " /etc/init

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