[MySQL 工具] pt-query-digest使用出错问题分析Can't locate Time/HiRes.pm in @INC

pt-query-digest ：分析查询执行日志，并产生一个查询报告

[root@472322 percona-toolkit-2.2.5]# pt-query-digest --helpCan't locate Time/HiRes.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /usr/local/bin/pt-query-digest line 3187.
BEGIN failed--compilation aborted at /usr/local/bin/pt-query-digest line 3187.

解决方案：
.pm实际上是Perl的包，只需安装如下软件包即可：
yum install -y perl-Time-HiRes

[root@472322 percona-toolkit-2.2.5]# yum install perl-Time-HiRes
Loaded plugins: dellsysid, fastestmirror, presto
Loading mirror speeds from cached hostfile
* base: mirror.rackspace.com
* dell-community: linux.dell.com
* epel: fedora-epel.mirror.lstn.net
* extras: mirrordenver.fdcservers.net
* updates: centos.mirror.lstn.net
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package perl-Time-HiRes.x86_64 4:1.9721-131.el6_4 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=======================================================================================================================================================================
Package Arch Version Repository Size
=======================================================================================================================================================================
Installing:
perl-Time-HiRes x86_64 4:1.9721-131.el6_4 updates 47 k

............................... 此处省略..............................

Running Transaction
Installing : 4:perl-Time-HiRes-1.9721-131.el6_4.x86_64 1/1
Verifying : 4:perl-Time-HiRes-1.9721-131.el6_4.x86_64 1/1

Installed:
perl-Time-HiRes.x86_64 4:1.9721-131.el6_4

Complete!

Ok，可以查看 pt-query-digest工具的功能介绍了：
[root@472322 percona-toolkit-2.2.5]# pt-query-digest --help
pt-query-digest analyzes MySQL queries from slow, general, and binary log files.
It can also analyze queries from C<SHOW PROCESSLIST> and MySQL protocol data
from tcpdump. By default, queries are grouped by fingerprint and reported in
descending order of query time (i.e. the slowest queries first). If no C<FILES>
are given, the tool reads C<STDIN>. The optional C<DSN> is used for certain
options like L<"--since"> and L<"--until">. For more details, please use the
--help option, or try 'perldoc /usr/local/bin/pt-query-digest' for complete
documentation.

Usage: pt-query-digest [OPTIONS] [FILES] [DSN]

Options:

--ask-pass Prompt for a password when connecting to MySQL
--attribute-aliases=a List of attribute|alias,etc (default db|Schema)
--attribute-value-limit=i A sanity limit for attribute values (default
4294967296)
--charset=s -A Default character set
--config=A Read this comma-separated list of config files;
if specified, this must be the first option on
the command line
--[no]continue-on-error Continue parsing even if there is an error (
default yes)
--[no]create-history-table Create the --history table if it does not exist (
default yes)
--[no]create-review-table Create the --review table if it does not exist (
default yes)
--daemonize Fork to the background and detach from the shell
--database=s -D Connect to this database
--defaults-file=s -F Only read mysql options from the given file
--embedded-attributes=a Two Perl regex patterns to capture pseudo-

attributes embedded in queries

....................................

分析本地的慢查询文件:

pt-query-digest --user=root --password=m@123 /data/dbdata/localhost-slow.log

重新回顾满查询日志，并将结果保存到query_review中，注意query_review表的表结构必须先建好，表结构如下：

CREATE TABLE query_review (checksum     BIGINT UNSIGNED NOT NULL PRIMARY KEY,fingerprint  TEXT NOT NULL,sample       TEXT NOT NULL,first_seen   DATETIME,last_seen    DATETIME,reviewed_by  VARCHAR(20),reviewed_on  DATETIME,comments     TEXT
);

命令如下：

pt-query-digest --user=root --password=m@123 --review h=localhost,D=test,t=query_review /data/dbdata/localhost-slow.log

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[MySQL 工具] pt-query-digest使用出错问题分析Can't locate Time/HiRes.pm in @INC

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