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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;
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