NAME

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

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:

       •   Read the tool's documentation

       •   Review the tool's known "BUGS"

       •   Test the tool on a non-production server

       •   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:

       •   d

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

       •   i

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

       •   m

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

       •   n

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

       •   j

           Select the next timestamp as the active sample.

       •   k

           Select the previous timestamp as the active sample.

       •   q

           Quit the program.

       •   1

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

       •   Sets the action to just list the files in the sample.

       •   *

           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://jira.percona.com/projects/PT>.  Include the following
       information in your bug report:

       •   Complete command-line used to run the tool

       •   Tool "--version"

       •   MySQL version of all servers involved

       •   Output from the tool including STDERR

       •   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 2011-2018 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 3.2.1