pt-eustack-resolver(1p)

NAME

pt-eustack-resolver - Get stack traces for a selected program with "eu-stack" and resolve symbols.

SYNOPSIS

Usage: pt-eustack-resolver PID

pt-eustack-resolver collects stack traces for the process with specified "PID".

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-eustack-resolver is the tool that gets stack traces for a selected program with "eu-stack" and resolves symbols. This is companion tool for pt-pmp, called when option "--dumper=pteu" is specified.

"eu-stack" is a tool from elfutils <https://sourceware.org/elfutils> package that prints a stack for each thread in a process or core file. "eu-stack" is faster than gdb and have smaller overhead on the diagnosed process.

OUTPUT

Stack for each thread, formatted similarly to "gdb thread apply all bt" output.

OPTIONS

This tool accepts additional command-line arguments. Refer to the "SYNOPSIS" and usage information for details.

--help: Show help and exit.

--version: Show version and exit.

ATTENTION

Using <PTDEBUG> might expose passwords. When debug is enabled, all command line parameters are shown in the output.

SYSTEM REQUIREMENTS

You need "eu-stack" from the elfutils <https://sourceware.org/elfutils> package.

BUGS

For a list of known bugs, see <https://jira.percona.com/projects/PT/issues>.

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

Alexey Stroganov

ACKNOWLEDGMENTS

Part of code for symbol resolving derived from resolve-stack-traces.pl script (https://github.com/knielsen/knielsen-pmp)

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 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, version 2 along with this program; if not, see <https://www.gnu.org/licenses/>.

VERSION

pt-eustack-resolver 3.7.1-4

POD ERRORS

Hey! The above document had some coding errors, which are explained below:

Around line 1468:: You forgot a '=back' before '=head1'