未找到< tablename>的分区表可能未分区

u1ehiz5o  于 2021-06-18  发布在  Mysql
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我正在做一个项目，用一个数据库创建一个zabbix服务器，所以我想用一个来自zabbix网站的外部脚本对zabbix服务器的数据库表进行分区，但我面临这个问题：

Oct 24 09:27:01 itit_mdbsrv01 mysql_zbx_part[31702]: Partitioning for "history_str" is not found! The table might be not partitioned.

这是我在数据库服务器上运行的脚本


# !/usr/bin/perl

use strict;
use Data::Dumper;
use DBI;
use Sys::Syslog qw(:standard :macros);
use DateTime;
use POSIX qw(strftime);

openlog("mysql_zbx_part", "ndelay,pid", LOG_LOCAL0);

my $db_schema = 'yousif';
my $dsn = 'DBI:mysql:'.$db_schema.':mysql_socket=/var/lib/mysql/mysql.sock';
my $db_user_name = 'yousif';
my $db_password = 'LiL132LiL';
my $tables = {  'history' => { 'period' => 'day', 'keep_history' => '30'},
        'history_log' => { 'period' => 'day', 'keep_history' => '30'},
        'history_str' => { 'period' => 'day', 'keep_history' => '30'},
        'history_text' => { 'period' => 'day', 'keep_history' => '30'},
        'history_uint' => { 'period' => 'day', 'keep_history' => '30'},
        'trends' => { 'period' => 'month', 'keep_history' => '2'},
        'trends_uint' => { 'period' => 'month', 'keep_history' => '2'},

# comment next 5 lines if you partition zabbix database starting from 2.2

# they usually used for zabbix database before 2.2

        'acknowledges' => { 'period' => 'month', 'keep_history' => '23'},
        'alerts' => { 'period' => 'month', 'keep_history' => '6'},
        'auditlog' => { 'period' => 'month', 'keep_history' => '24'},
        'events' => { 'period' => 'month', 'keep_history' => '12'},
        'service_alarms' => { 'period' => 'month', 'keep_history' => '6'},
        };
my $amount_partitions = 10;

my $curr_tz = 'Europe/London';

my $part_tables;

my $dbh = DBI->connect($dsn, $db_user_name, $db_password);

unless ( check_have_partition() ) {
    print "Your installation of MySQL does not support table partitioning.\n";
    syslog(LOG_CRIT, 'Your installation of MySQL does not support table partitioning.');
    exit 1;
}

my $sth = $dbh->prepare(qq{SELECT table_name, partition_name, lower(partition_method) as partition_method,
                    rtrim(ltrim(partition_expression)) as partition_expression,
                    partition_description, table_rows
                FROM information_schema.partitions
                WHERE partition_name IS NOT NULL AND table_schema = ?});
$sth->execute($db_schema);

while (my $row =  $sth->fetchrow_hashref()) {
    $part_tables->{$row->{'table_name'}}->{$row->{'partition_name'}} = $row;
}

$sth->finish();

foreach my $key (sort keys %{$tables}) {
    unless (defined($part_tables->{$key})) {
        syslog(LOG_ERR, 'Partitioning for "'.$key.'" is not found! The table might be not partitioned.');
        next;
    }

    create_next_partition($key, $part_tables->{$key}, $tables->{$key}->{'period'});
    remove_old_partitions($key, $part_tables->{$key}, $tables->{$key}->{'period'}, $tables->{$key}->{'keep_history'})
}

delete_old_data();

$dbh->disconnect();

sub check_have_partition {
    my $result = 0;

# MySQL 5.5

    my $sth = $dbh->prepare(qq{SELECT variable_value FROM information_schema.global_variables WHERE variable_name = 'have_partitioning'});

# MySQL 5.6

    #my $sth = $dbh->prepare(qq{SELECT plugin_status FROM information_schema.plugins WHERE plugin_name = 'partition'});

    $sth->execute();

    my $row = $sth->fetchrow_array();

    $sth->finish();

# MySQL 5.5

    return 1 if $row eq 'YES';

# MySQL 5.6

    #return 1 if $row eq 'ACTIVE';
}

sub create_next_partition {
    my $table_name = shift;
    my $table_part = shift;
    my $period = shift;

    for (my $curr_part = 0; $curr_part < $amount_partitions; $curr_part++) {
        my $next_name = name_next_part($tables->{$table_name}->{'period'}, $curr_part);
        my $found = 0;

        foreach my $partition (sort keys %{$table_part}) {
            if ($next_name eq $partition) {
                syslog(LOG_INFO, "Next partition for $table_name table has already been created. It is $next_name");
                $found = 1;
            }
        }

        if ( $found == 0 ) {
            syslog(LOG_INFO, "Creating a partition for $table_name table ($next_name)");
            my $query = 'ALTER TABLE '."$db_schema.$table_name".' ADD PARTITION (PARTITION '.$next_name.
                        ' VALUES less than (UNIX_TIMESTAMP("'.date_next_part($tables->{$table_name}->{'period'}, $curr_part).'") div 1))';
            syslog(LOG_DEBUG, $query);
            $dbh->do($query);
        }
    }
}

sub remove_old_partitions {
    my $table_name = shift;
    my $table_part = shift;
    my $period = shift;
    my $keep_history = shift;

    my $curr_date = DateTime->now;
    $curr_date->set_time_zone( $curr_tz );

    if ( $period eq 'day' ) {
        $curr_date->add(days => -$keep_history);
        $curr_date->add(hours => -$curr_date->strftime('%H'));
        $curr_date->add(minutes => -$curr_date->strftime('%M'));
        $curr_date->add(seconds => -$curr_date->strftime('%S'));
    }
    elsif ( $period eq 'week' ) {
    }
    elsif ( $period eq 'month' ) {
        $curr_date->add(months => -$keep_history);

        $curr_date->add(days => -$curr_date->strftime('%d')+1);
        $curr_date->add(hours => -$curr_date->strftime('%H'));
        $curr_date->add(minutes => -$curr_date->strftime('%M'));
        $curr_date->add(seconds => -$curr_date->strftime('%S'));
    }

    foreach my $partition (sort keys %{$table_part}) {
        if ($table_part->{$partition}->{'partition_description'} <= $curr_date->epoch) {
            syslog(LOG_INFO, "Removing old $partition partition from $table_name table");

            my $query = "ALTER TABLE $db_schema.$table_name DROP PARTITION $partition";

            syslog(LOG_DEBUG, $query);
            $dbh->do($query);
        }
    }
}

sub name_next_part {
    my $period = shift;
    my $curr_part = shift;

    my $name_template;

    my $curr_date = DateTime->now;
    $curr_date->set_time_zone( $curr_tz );

    if ( $period eq 'day' ) {
        my $curr_date = $curr_date->truncate( to => 'day' );
        $curr_date->add(days => 1 + $curr_part);

        $name_template = $curr_date->strftime('p%Y_%m_%d');
    }
    elsif ($period eq 'week') {
        my $curr_date = $curr_date->truncate( to => 'week' );
        $curr_date->add(days => 7 * $curr_part);

        $name_template = $curr_date->strftime('p%Y_%m_w%W');
    }
    elsif ($period eq 'month') {
        my $curr_date = $curr_date->truncate( to => 'month' );
        $curr_date->add(months => 1 + $curr_part);

        $name_template = $curr_date->strftime('p%Y_%m');
    }

    return $name_template;
}

sub date_next_part {
    my $period = shift;
    my $curr_part = shift;

    my $period_date;

    my $curr_date = DateTime->now;
    $curr_date->set_time_zone( $curr_tz );

    if ( $period eq 'day' ) {
        my $curr_date = $curr_date->truncate( to => 'day' );
        $curr_date->add(days => 2 + $curr_part);
        $period_date = $curr_date->strftime('%Y-%m-%d');
    }
    elsif ($period eq 'week') {
        my $curr_date = $curr_date->truncate( to => 'week' );
        $curr_date->add(days => 7 * $curr_part + 1);
        $period_date = $curr_date->strftime('%Y-%m-%d');
    }
    elsif ($period eq 'month') {
        my $curr_date = $curr_date->truncate( to => 'month' );
        $curr_date->add(months => 2 + $curr_part);

        $period_date = $curr_date->strftime('%Y-%m-%d');
    }

    return $period_date;
}

sub delete_old_data {
    $dbh->do("DELETE FROM sessions WHERE lastaccess < UNIX_TIMESTAMP(NOW() - INTERVAL 1 MONTH)");
    $dbh->do("TRUNCATE housekeeper");
    $dbh->do("DELETE FROM auditlog_details WHERE NOT EXISTS (SELECT NULL FROM auditlog WHERE auditlog.auditid = auditlog_details.auditid)");
}

我确实给我的.cnf文件添加了一些曲子

[mysqld]
innodb_buffer_pool_size = 256M # take ~75% of total available memory, for example if you have 8GB of RAM then set it to 6G
innodb_buffer_pool_instances = 4
innodb_flush_log_at_trx_commit = 0
innodb_flush_method = O_DIRECT
innodb_log_file_size = 256M
query_cache_type = 0
innodb_io_capacity = 2000 #or 3000 in SSD scenario

我确实为脚本安装了所有必要的包，比如syslog和datetime，以及它的连接和访问数据库，但问题是当它试图使分区成为ps时：mariadb的分区被启用了，我用和内部脚本完成了，它工作得很好

mysqlzabbix

暂无答案！

目前还没有任何答案，快来回答吧！

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