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Man Pages


Manual Reference Pages  -  PT-SIFT (1)

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NAME

pt-sift - Browses files created by pt-stalk.

CONTENTS

SYNOPSIS

Usage: pt-sift FILE|PREFIX|DIRECTORY

pt-sift browses files created by pt-stalk. If no options are given, the tool browses all pt-stalk files in /var/lib/pt-stalk if that directory exists, else the current working directory is used. If a FILE is given, the tool browses files with the same prefix in the given file’s directory. If a PREFIX is given, the tool browses files in /var/lib/pt-stalk (or the current working directory) with the same prefix. If a DIRECTORY is given, the tool browses all pt-stalk files in it.

RISKS

Percona Toolkit is mature, proven in the real world, and well tested, but all database tools can pose a risk to the system and the database server. Before using this tool, please:
o Read the tool’s documentation
o Review the tool’s known BUGS
o Test the tool on a non-production server
o Backup your production server and verify the backups

DESCRIPTION

pt-sift downloads other tools that it might need, such as pt-diskstats, and then makes a list of the unique timestamp prefixes of all the files in the directory, as written by the pt-stalk tool. If the user specified a timestamp on the command line, then it begins with that sample of data; otherwise it begins by showing a list of the timestamps and prompting for a selection. Thereafter, it displays a summary of the selected sample, and the user can navigate and inspect with keystrokes. The keystroke commands you can use are as follows:
o d

Sets the action to start the pt-diskstats tool on the sample’s disk performance statistics.

o i

Sets the action to view the first INNODB STATUS sample in less.

o m

Displays the first 4 samples of SHOW STATUS counters side by side with the pt-mext tool.

o n

Summarizes the first sample of netstat data in two ways: by originating host, and by connection state.

o j

Select the next timestamp as the active sample.

o k

Select the previous timestamp as the active sample.

o q

Quit the program.

o 1

Sets the action for each sample to the default, which is to view a summary of the sample.

o Sets the action to just list the files in the sample.
o *

Sets the action to view all of the sample’s files in the less program.

OPTIONS

--help Show help and exit.
--version Show version and exit.

ENVIRONMENT

This tool does not use any environment variables.

SYSTEM REQUIREMENTS

This tool requires Bash v3 and the following programs: pt-diskstats, pt-pmp, pt-mext, and pt-align. If these programs are not in your PATH, they will be fetched from the Internet if curl is available.

BUGS

For a list of known bugs, see <http://www.percona.com/bugs/pt-sift>.

Please report bugs at <https://bugs.launchpad.net/percona-toolkit>. Include the following information in your bug report:
o Complete command-line used to run the tool
o Tool --version
o MySQL version of all servers involved
o Output from the tool including STDERR
o Input files (log/dump/config files, etc.)
If possible, include debugging output by running the tool with PTDEBUG; see ENVIRONMENT.

DOWNLOADING

Visit <http://www.percona.com/software/percona-toolkit/> to download the latest release of Percona Toolkit. Or, get the latest release from the command line:



   wget percona.com/get/percona-toolkit.tar.gz

   wget percona.com/get/percona-toolkit.rpm

   wget percona.com/get/percona-toolkit.deb



You can also get individual tools from the latest release:



   wget percona.com/get/TOOL



Replace TOOL with the name of any tool.

AUTHORS

Baron Schwartz

ABOUT PERCONA TOOLKIT

This tool is part of Percona Toolkit, a collection of advanced command-line tools for MySQL developed by Percona. Percona Toolkit was forked from two projects in June, 2011: Maatkit and Aspersa. Those projects were created by Baron Schwartz and primarily developed by him and Daniel Nichter. Visit <http://www.percona.com/software/> to learn about other free, open-source software from Percona.

COPYRIGHT, LICENSE, AND WARRANTY

This program is copyright 2011-2015 Percona LLC and/or its affiliates, 2010-2011 Baron Schwartz.

THIS PROGRAM IS PROVIDED AS IS AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2; OR the Perl Artistic License. On UNIX and similar systems, you can issue ‘man perlgpl’ or ‘man perlartistic’ to read these licenses.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

VERSION

pt-sift 2.2.14
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