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				'\" t
				.\" Title: ctdb.sysconfig
				.\" Author:
				.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
				.\" Date: 11/18/2018
				.\" Manual: CTDB - clustered TDB database
				.\" Source: ctdb
				.\" Language: English
				.\"
				.TH "CTDB\&.SYSCONFIG" "5" "11/18/2018" "ctdb" "CTDB \- clustered TDB database"
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				.nh
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				.\" * MAIN CONTENT STARTS HERE *
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				.SH "NAME"
				ctdb.sysconfig \- CTDB daemon configuration file
				.SH "DESCRIPTION"
				.PP
				This file contains configuration that affects the operation of CTDB\&. This is a distribution\-specific service configuration file such as
				/etc/sysconfig/ctdb
				(Red Hat) or
				/etc/default/ctdb
				(Debian) and is a shell script (see
				\fBsh\fR(1))\&.
				.SH "GLOBAL CONFIGURATION"
				.PP
				CTDB_INIT_STYLE=debian\|redhat\|suse
				.RS 4
				This is the init style used by the Linux distribution (or other operating system) being used\&. This is usually determined dynamically by checking the system\&. This variable is used by the initscript to determine which init system primitives to use\&. It is also used by some eventscripts to choose the name of initscripts for certain services, since these can vary between distributions\&.
				.sp
				If using CTDB\*(Aqs event scripts are unable to determine an appropriate default then this option can also be placed in a relevant
				\fBctdb-script.options\fR(5)
				file\&.
				.sp
				Default: NONE\&. Guessed, based on features of distribution\&.
				.RE
				.PP
				CTDB_STARTUP_TIMEOUT=\fINUM\fR
				.RS 4
				NUM is the number of seconds to wait for
				\fBctdbd\fR(1)
				complete early initialisation up to a point where it is unlikely to abort\&. If
				\fBctdbd\fR
				doesn\*(Aqt complete the "setup" event before this timeout then it is killed\&.
				.sp
				Defaults: 10
				.RE
				.SH "RESOURCE LIMITS"
				.SS "Maximum number of open files"
				.PP
				CTDB can use a lot of file descriptors, especially when used with Samba\&. If there are thousands of smbd processes connected to CTDB when this can mean that thousands of file descriptors are used\&. For CTDB, it is often necessary to increase limit on the maximum number of open files\&.
				.PP
				The maximum number of open files should be configured using an operating system mechanism\&.
				.PP
				systemd
				.RS 4
				The
				LimitNOFILE=\fBLIMIT\fR
				option can be used in a unit/service file increase the maximum number of open files\&. See
				\fBsystemd.exec\fR(5)
				for details\&.
				.RE
				.PP
				SYSV init
				.RS 4
				Use a command like
				\fBulimit \-n \fR\fB\fBLIMIT\fR\fR
				to increase the maximum number of open files\&. This command can be put in the relevant distribution\-specific service configuration file\&.
				.RE
				.SS "Allowing core dumps"
				.PP
				Many distributions do not allow core dump files to be generated by default\&. To assist with debugging, core files can be enabled\&. This should be configured using an operating system mechanism\&.
				.PP
				systemd
				.RS 4
				The
				LimitCORE=0\|unlimited
				option can be used in a unit/service file\&.
				0
				disallows core files,
				unlimited
				allows them\&. maximum number of open files\&. See
				\fBsystemd.exec\fR(5)
				for details\&.
				.RE
				.PP
				SYSV init
				.RS 4
				Use a command like
				\fBulimit \-c 0\|unlimited\fR
				to disable or enable core files as required\&. This command can be put in the relevant distribution\-specific service configuration file\&.
				.RE
				.SH "FILES"
				.RS 4
				/etc/sysconfig/ctdb
				.RE
				.RS 4
				/etc/default/ctdb
				.RE
				.RS 4
				/usr/local/etc/ctdb/script\&.options
				.RE
				.SH "SEE ALSO"
				.PP
				\fBctdbd\fR(1),
				\fBctdb-script.options\fR(5),
				\fBctdb\fR(7),
				\m[blue]\fB\%http://ctdb.samba.org/\fR\m[]
				.SH "AUTHOR"
				.br
				.PP
				This documentation was written by Martin Schwenke
				.SH "COPYRIGHT"
				.br
				Copyright \(co 2007 Andrew Tridgell, Ronnie Sahlberg
				.br
				.PP
				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; either version 3 of the License, or (at your option) any later version\&.
				.PP
				This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE\&. See the GNU General Public License for more details\&.
				.PP
				You should have received a copy of the GNU General Public License along with this program; if not, see
				\m[blue]\fB\%http://www.gnu.org/licenses\fR\m[]\&.
				.sp