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272 lines
5.4 KiB
ReStructuredText
272 lines
5.4 KiB
ReStructuredText
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#######
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pt-sift
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#######
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.. highlight:: perl
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****
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NAME
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****
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pt-sift - Browses files created by pt-collect.
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********
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SYNOPSIS
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********
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Usage: pt-sift FILE|PREFIX|DIRECTORY
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pt-sift browses the files created by pt-collect. If you specify a
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FILE or PREFIX, it browses only files with that prefix. If you specify a
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DIRECTORY, then it browses all files within that directory.
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*****
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RISKS
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*****
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The following section is included to inform users about the potential risks,
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whether known or unknown, of using this tool. The two main categories of risks
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are those created by the nature of the tool (e.g. read-only tools vs. read-write
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tools) and those created by bugs.
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pt-sift is a read-only tool. It should be very low-risk.
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At the time of this release, we know of no bugs that could cause serious harm
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to users.
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The authoritative source for updated information is always the online issue
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tracking system. Issues that affect this tool will be marked as such. You can
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see a list of such issues at the following URL:
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`http://www.percona.com/bugs/pt-sift <http://www.percona.com/bugs/pt-sift>`_.
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See also "BUGS" for more information on filing bugs and getting help.
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***********
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DESCRIPTION
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***********
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pt-sift downloads other tools that it might need, such as pt-diskstats,
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and then makes a list of the unique timestamp prefixes of all the files in
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the directory, as written by the pt-collect tool. If the user specified
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a timestamp on the command line, then it begins with that sample of data;
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otherwise it begins by showing a list of the timestamps and prompting for
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a selection. Thereafter, it displays a summary of the selected sample, and
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the user can navigate and inspect with keystrokes. The keystroke commands
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you can use are as follows:
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d
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Sets the action to start the pt-diskstats tool on the sample's disk
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performance statistics.
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i
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Sets the action to view the first INNODB STATUS sample in less.
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m
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Displays the first 4 samples of SHOW STATUS counters side by side with the
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pt-mext tool.
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n
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Summarizes the first sample of netstat data in two ways: by originating host,
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and by connection state.
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j
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Select the next timestamp as the active sample.
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k
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Select the previous timestamp as the active sample.
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q
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Quit the program.
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1
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Sets the action for each sample to the default, which is to view a summary
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of the sample.
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0
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Sets the action to just list the files in the sample.
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\*
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Sets the action to view all of the samples's files in the less program.
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*******
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OPTIONS
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This tool does not have any command-line options.
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***********
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ENVIRONMENT
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***********
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This tool does not use any environment variables.
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*******************
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SYSTEM REQUIREMENTS
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*******************
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This tool requires Bash v3 or newer.
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****
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BUGS
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****
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For a list of known bugs, see `http://www.percona.com/bugs/pt-sift <http://www.percona.com/bugs/pt-sift>`_.
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Please report bugs at `https://bugs.launchpad.net/percona-toolkit <https://bugs.launchpad.net/percona-toolkit>`_.
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Include the following information in your bug report:
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\* Complete command-line used to run the tool
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\* Tool "--version"
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\* MySQL version of all servers involved
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\* Output from the tool including STDERR
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\* Input files (log/dump/config files, etc.)
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If possible, include debugging output by running the tool with \ ``PTDEBUG``\ ;
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see "ENVIRONMENT".
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***********
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DOWNLOADING
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***********
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Visit `http://www.percona.com/software/percona-toolkit/ <http://www.percona.com/software/percona-toolkit/>`_ to download the
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latest release of Percona Toolkit. Or, get the latest release from the
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command line:
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.. code-block:: perl
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wget percona.com/get/percona-toolkit.tar.gz
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wget percona.com/get/percona-toolkit.rpm
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wget percona.com/get/percona-toolkit.deb
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You can also get individual tools from the latest release:
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.. code-block:: perl
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wget percona.com/get/TOOL
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Replace \ ``TOOL``\ with the name of any tool.
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*******
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AUTHORS
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*******
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Baron Schwartz
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*********************
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ABOUT PERCONA TOOLKIT
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*********************
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This tool is part of Percona Toolkit, a collection of advanced command-line
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tools developed by Percona for MySQL support and consulting. Percona Toolkit
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was forked from two projects in June, 2011: Maatkit and Aspersa. Those
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projects were created by Baron Schwartz and developed primarily by him and
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Daniel Nichter, both of whom are employed by Percona. Visit
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`http://www.percona.com/software/ <http://www.percona.com/software/>`_ for more software developed by Percona.
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********************************
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COPYRIGHT, LICENSE, AND WARRANTY
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********************************
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This program is copyright 2010-2011 Baron Schwartz, 2011 Percona Inc.
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Feedback and improvements are welcome.
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THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
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systems, you can issue \`man perlgpl' or \`man perlartistic' to read these
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licenses.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA.
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*******
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VERSION
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*******
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Percona Toolkit v0.9.5 released 2011-08-04
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