1CTDB.SYSCONFIG(5)        CTDB - clustered TDB database       CTDB.SYSCONFIG(5)
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NAME

6       ctdb.sysconfig - CTDB daemon configuration file
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DESCRIPTION

9       This file contains configuration that affects the operation of CTDB.
10       This is a distribution-specific service configuration file such as
11       /etc/sysconfig/ctdb (Red Hat) or /etc/default/ctdb (Debian) and is a
12       shell script (see sh(1)).
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GLOBAL CONFIGURATION

15       CTDB_INIT_STYLE=debian|redhat|suse
16           This is the init style used by the Linux distribution (or other
17           operating system) being used. This is usually determined
18           dynamically by checking the system. This variable is used by the
19           initscript to determine which init system primitives to use. It is
20           also used by some eventscripts to choose the name of initscripts
21           for certain services, since these can vary between distributions.
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23           If using CTDB's event scripts are unable to determine an
24           appropriate default then this option can also be placed in a
25           relevant ctdb-script.options(5) file.
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27           Default: NONE. Guessed, based on features of distribution.
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RESOURCE LIMITS

30   Maximum number of open files
31       CTDB can use a lot of file descriptors, especially when used with
32       Samba. If there are thousands of smbd processes connected to CTDB when
33       this can mean that thousands of file descriptors are used. For CTDB, it
34       is often necessary to increase limit on the maximum number of open
35       files.
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37       The maximum number of open files should be configured using an
38       operating system mechanism.
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40       systemd
41           The LimitNOFILE=LIMIT option can be used in a unit/service file
42           increase the maximum number of open files. See systemd.exec(5) for
43           details.
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45       SYSV init
46           Use a command like ulimit -n LIMIT to increase the maximum number
47           of open files. This command can be put in the relevant
48           distribution-specific service configuration file.
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50   Allowing core dumps
51       Many distributions do not allow core dump files to be generated by
52       default. To assist with debugging, core files can be enabled. This
53       should be configured using an operating system mechanism.
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55       systemd
56           The LimitCORE=0|unlimited option can be used in a unit/service
57           file.  0 disallows core files, unlimited allows them. maximum
58           number of open files. See systemd.exec(5) for details.
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60       SYSV init
61           Use a command like ulimit -c 0|unlimited to disable or enable core
62           files as required. This command can be put in the relevant
63           distribution-specific service configuration file.
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FILES

66           /etc/sysconfig/ctdb
67           /etc/default/ctdb
68           /etc/ctdb/script.options
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SEE ALSO

71       ctdbd(1), ctdb-script.options(5), ctdb(7), http://ctdb.samba.org/
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AUTHOR

74       This documentation was written by Martin Schwenke
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77       Copyright © 2007 Andrew Tridgell, Ronnie Sahlberg
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79       This program is free software; you can redistribute it and/or modify it
80       under the terms of the GNU General Public License as published by the
81       Free Software Foundation; either version 3 of the License, or (at your
82       option) any later version.
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84       This program is distributed in the hope that it will be useful, but
85       WITHOUT ANY WARRANTY; without even the implied warranty of
86       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
87       General Public License for more details.
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89       You should have received a copy of the GNU General Public License along
90       with this program; if not, see http://www.gnu.org/licenses.
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95ctdb                              01/26/2023                 CTDB.SYSCONFIG(5)
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