Considered basic but advanced outcome (Custom Backup Solution)
Ive a problem that I'm reaching out for help.
Ive written (With bits and pieces) of script that is not running as expected or is having an issue causing processes to spiral out of control.
The script does this:
Unloads a UV database server
Tars up a few folders
Transfers the file to another server
Reloads the UV database
Simple actually but I'm lost in its dysfunction.
Code:
#!/bin/sh
# Unload the UV Database
# Suspend the database
uv -admin -L
# Validate the database
uv -admin -R
#Sync any cached data back to disk
sync
# What is the script backing up exactly
backup_files="/home /etc /u2 /usr/spool/uv /boot /opt"
# Where is it backing up to
dest="/backup"
# Create a daily variable for the archive filename and add the hostname to it
day=$(date +%A)
hostname=$(hostname -s)
# Find which week of the month 1-4 it is.
day_num=$(date +%d)
if (( $day_num <= 7 )); then
week_file="$hostname-week1.tgz"
elif (( $day_num > 7 && $day_num <= 14 )); then
week_file="$hostname-week2.tgz"
elif (( $day_num > 14 && $day_num <= 21 )); then
week_file="$hostname-week3.tgz"
elif (( $day_num > 21 && $day_num < 32 )); then
week_file="$hostname-week4.tgz"
fi
# Find if the Month is odd or even.
month_num=$(date +%m)
month=$(expr $month_num % 2)
if [ $month -eq 0 ]; then
month_file="$hostname-month2.tgz"
else
month_file="$hostname-month1.tgz"
fi
# Create archive filename.
if [ $day_num == 1 ]; then
archive_file=$month_file
elif [ $day != "Saturday" ]; then
archive_file="$hostname-$day.tgz"
else
archive_file=$week_file
fi
# Print start status message.
echo
echo "Backing up $backup_files to $dest/$archive_file"
date
# Backup the files using tar.
tar czf $dest/$archive_file $backup_files
# Print end status message.
echo
echo "Backup finished"
date
# Long listing of files in $dest to check file sizes.
ls -lh $dest/
# Release the Database
uv -admin -U
The result is that it will write to a local server (CIFS) but its performance is so bad it never completes or takes down the server.
I end up with multiple uvsh processes running at 100 percent, or 50 percent. Yes I'm stumped here, I expect this to be simple but its not acting right.
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Discussion started by: jvamos
4 Replies
LEARN ABOUT PHP
xdiff_file_bpatch
XDIFF_FILE_BPATCH(3) 1 XDIFF_FILE_BPATCH(3)xdiff_file_bpatch - Patch a file with a binary diffSYNOPSIS
bool xdiff_file_bpatch (string $file, string $patch, string $dest)
DESCRIPTION
Patches a $file with a binary $patch and stores the result in a file $dest. This function accepts patches created both via
xdiff_file_bdiff(3) and xdiff_file_rabdiff(3) functions or their string counterparts.
PARAMETERS
o $file
- The original file.
o $patch
- The binary patch file.
o $dest
- Path of the resulting file.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
xdiff_file_bpatch(3) example
The following code applies binary diff to a file.
<?php
$old_version = 'archive-1.0.tgz';
$patch = 'archive.bpatch';
$result = xdiff_file_bpatch($old_version, $patch, 'archive-1.1.tgz');
if ($result) {
echo "File patched";
} else {
echo "File couldn't be patched";
}
?>
NOTES
Note
Both files ($file and $patch) will be loaded into memory so ensure that your memory_limit is set high enough.
SEE ALSO xdiff_file_bdiff(3), xdiff_file_rabdiff(3).
PHP Documentation Group XDIFF_FILE_BPATCH(3)