pt-查询-摘要-类型的binlog (percona-toolkit)使用MariaDB/Galera 10.1提供空输出。

Question

我在MacBook上安装的MacBook和Percona版本：

brew info percona-toolkit
percona-toolkit: stable 3.0.10 (bottled), HEAD
Percona Toolkit for MySQL
https://www.percona.com/software/percona-toolkit/
/usr/local/Cellar/percona-toolkit/3.0.10 (244 files, 8.4MB) *
  Poured from bottle on 2018-05-31 at 09:52:48
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/percona-toolkit.rb
==> Dependencies
Required: mysql ✔, openssl ✔
==> Options
--HEAD
    Install HEAD version

DB服务器版本：

show global variables like '%version%';
+-------------------------+---------------------------+
| Variable_name           | Value                     |
+-------------------------+---------------------------+
| innodb_version          | 5.6.36-82.1               |
| protocol_version        | 10                        |
| slave_type_conversions  |                           |
| version                 | 10.1.26-MariaDB           |
| version_comment         | Source distribution       |
| version_compile_machine | x86_64                    |
| version_compile_os      | Linux                     |
| version_malloc_library  | system                    |
| version_ssl_library     | OpenSSL 1.0.1f 6 Jan 2014 |
| wsrep_patch_version     | wsrep_25.19               |
+-------------------------+---------------------------+
10 rows in set (0.01 sec)  

有趣的是，为了安装percona工具包，我不得不安装Oracle MySQL，后记改为MariaDB。

brew install mariadb
brew unlink mariadb
brew install percona-toolkit
brew unlink mysql
brew link mariadb

我们在基于行的复制中使用Galera集群：

show global variables like 'binlog_format';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| binlog_format | ROW   |
+---------------+-------+
1 row in set (0.00 sec)

我做了一个简单的用例：

mysqlbinlog  mysql-bin.0013* > all.sql

pt-query-digest --type binlog all.sql
all.sql:   1% 37:37 remain
(...)
all.sql:  96% 01:23 remain
all.sql:  98% 00:30 remain

# 2417.5s user time, 51.4s system time, 89.16M rss, 4.24G vsz
# Current date: Fri Jun  1 07:42:57 2018
# Hostname: aukVivi0009
# Files: all.sql
# Overall: 0 total, 2.05k unique, 0 QPS, 0x concurrency __________________
# Time range: 2018-05-26 02:00:54 to 2018-05-31 08:05:28
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Query size        10.68G       6 287.51k  492.88  833.10   1.92k  107.34

# Profile
# Rank        Query ID    Response time Calls       R/Call      V/M   Item
# =========== =========== =========== =========== =========== ===== ======   

为什么输出是空的？pt-query-digest与MariaDB不兼容吗？二进制日志格式的更改？有什么解决办法吗？

Answer 1

见用pt-查询摘要读取RBR二进制日志和LP #1377887: pt查询摘要无法解析带有RBR事件的二进制日志。

该bug报告已有2年以上的历史，并被列为“低”优先级。建议您在提示Percona中添加一条注释，因为您有兴趣将其修复。