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#!/usr/local/cpanel/3rdparty/bin/perl
# cpanel - scripts/optimize_eximstats Copyright 2022 cPanel, L.L.C.
# All rights reserved.
# copyright@cpanel.net http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited
package scripts::optimize_eximstats;
use strict;
## no critic qw(TestingAndDebugging::RequireUseWarnings) -- not fully vetted for warnings
use parent qw( Cpanel::HelpfulScript );
our $VERSION = 1.4;
our $PID_FILE = '/var/run/optimize_eximstats.pid';
use Cpanel::Alarm ();
use Cpanel::DiskCheck ();
use Cpanel::EximStats::ConnectDB ();
use Cpanel::EximStats::Constants ();
use Cpanel::PIDFile ();
use Cpanel::Sys::Load ();
use File::Basename ();
=encoding utf-8
=head1 NAME
scripts::optimize_eximstats
=head1 SYNOPSIS
/usr/local/cpanel/scripts/optimize_eximstats
=head1 DESCRIPTION
This script is used to vacuum (defragment) the eximstats database.
=cut
__PACKAGE__->new(@ARGV)->run() if !caller();
sub _OPTIONS {
return;
}
sub run {
my ($self) = @_;
$self->has_required_diskspace();
Cpanel::PIDFile->do(
$PID_FILE,
sub {
my $main_alarm = Cpanel::Alarm->new( 2 * 60**2, sub { die "optimize_eximstats ran for longer then two hours."; } );
$self->vacuum_database();
}
);
return;
}
sub vacuum_database {
my ($self) = @_;
local $ENV{'SQLITE_TMPDIR'} = File::Basename::dirname($Cpanel::EximStats::Constants::EXIMSTATS_SQLITE_DB);
my $dbh = Cpanel::EximStats::ConnectDB::dbconnect();
my ( $load_one, $load_five, $load_fifteen ) = Cpanel::Sys::Load::getloadavg($Cpanel::Sys::Load::ForceFloat);
$load_one = sprintf( "%.05f", $load_one ); # Reduce precision on load_one to avoid divide by zero below (FPU fun)
print "Optimizing eximstats (current load avg: $load_one)......";
$dbh->do('VACUUM;');
print "Done\n";
my ( $post_load_one, $post_load_five, $post_load_fifteen ) = Cpanel::Sys::Load::getloadavg($Cpanel::Sys::Load::ForceFloat);
print "Load before optimize: $load_one, Load after optimize: $post_load_one.\n";
print "Optimization complete.\n";
return;
}
sub has_required_diskspace {
my ($self) = @_;
# from: https://sqlite.org/lang_vacuum.html
# This means that when VACUUMing a database, as much as twice the size
# of the original database file is required in free disk space.
# https://sqlite.org/tempfiles.html
# 5. Temporary File Storage Locations
# The directory or folder in which temporary files are created is determined by the OS-specific VFS.
# On unix-like systems, directories are searched in the following order:
# The directory set by PRAGMA temp_store_directory or by the sqlite3_temp_directory global variable
# The SQLITE_TMPDIR environment variable
# The TMPDIR environment variable
# /var/tmp
# /usr/tmp
# /tmp
# The current working directory (".")
# The first of the above that is found to exist and have the write and execute bits set is used.
# The final "." fallback is important for some applications that use SQLite inside of chroot jails that
# do not have the standard temporary file locations available.
my $disk_used_bytes = -s $Cpanel::EximStats::Constants::EXIMSTATS_SQLITE_DB;
my $dir = File::Basename::dirname($Cpanel::EximStats::Constants::EXIMSTATS_SQLITE_DB);
my $disk_output = '';
my ( $disk_ok, $disk_msg ) = Cpanel::DiskCheck::target_has_enough_free_space_to_fit_source_sizes(
'source_sizes' => [ { 'optimize_eximstats' => $disk_used_bytes } ],
'target' => $dir,
'output_coderef' => sub { my ($msg) = @_; $disk_output .= $msg; return 1; }
);
print "$disk_output\n";
die $disk_msg if !$disk_ok;
return;
}
1;