390 lines
14 KiB
Groff
390 lines
14 KiB
Groff
.\"
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.\" Author: Joao Marcelo Martins <marcelo.martins@rackspace.com> or <btorch@gmail.com>
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.\" Copyright (c) 2010-2012 OpenStack Foundation.
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.\"
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.\" Licensed under the Apache License, Version 2.0 (the "License");
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.\" you may not use this file except in compliance with the License.
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.\" You may obtain a copy of the License at
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.\"
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.\" http://www.apache.org/licenses/LICENSE-2.0
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.\"
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.\" Unless required by applicable law or agreed to in writing, software
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.\" distributed under the License is distributed on an "AS IS" BASIS,
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.\" WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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.\" implied.
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.\" See the License for the specific language governing permissions and
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.\" limitations under the License.
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.\"
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.TH container-server.conf 5 "8/26/2011" "Linux" "OpenStack Swift"
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.SH NAME
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.LP
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.B container-server.conf
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\- configuration file for the openstack-swift container server
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.SH SYNOPSIS
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.LP
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.B container-server.conf
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.SH DESCRIPTION
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.PP
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This is the configuration file used by the container server and other container
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background services, such as; replicator, updater, auditor and sync.
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The configuration file follows the python-pastedeploy syntax. The file is divided
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into sections, which are enclosed by square brackets. Each section will contain a
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certain number of key/value parameters which are described later.
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Any line that begins with a '#' symbol is ignored.
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You can find more information about python-pastedeploy configuration format at
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\fIhttp://pythonpaste.org/deploy/#config-format\fR
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.SH GLOBAL SECTION
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.PD 1
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.RS 0
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This is indicated by section named [DEFAULT]. Below are the parameters that
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are acceptable within this section.
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.IP "\fBbind_ip\fR"
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IP address the container server should bind to. The default is 0.0.0.0 which will make
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it bind to all available addresses.
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.IP "\fBbind_port\fR"
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TCP port the container server should bind to. The default is 6001.
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.IP "\fBbind_timeout\fR"
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Timeout to bind socket. The default is 30.
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.IP \fBbacklog\fR
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TCP backlog. Maximum number of allowed pending connections. The default value is 4096.
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.IP \fBworkers\fR
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The number of pre-forked processes that will accept connections. Zero means
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no fork. The default is auto which will make the server try to match the
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number of effective cpu cores if python multiprocessing is available (included
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with most python distributions >= 2.6) or fallback to one. It's worth noting
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that individual workers will use many eventlet co-routines to service multiple
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concurrent requests.
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.IP \fBmax_clients\fR
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Maximum number of clients one worker can process simultaneously (it will
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actually accept(2) N + 1). Setting this to one (1) will only handle one request
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at a time, without accepting another request concurrently. The default is 1024.
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.IP \fBallowed_sync_hosts\fR
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This is a comma separated list of hosts allowed in the X-Container-Sync-To
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field for containers. This is the old-style of using container sync. It is
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strongly recommended to use the new style of a separate
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container-sync-realms.conf -- see container-sync-realms.conf-sample
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allowed_sync_hosts = 127.0.0.1
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.IP \fBuser\fR
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The system user that the container server will run as. The default is swift.
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.IP \fBswift_dir\fR
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Swift configuration directory. The default is /etc/swift.
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.IP \fBdevices\fR
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Parent directory or where devices are mounted. Default is /srv/node.
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.IP \fBmount_check\fR
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Whether or not check if the devices are mounted to prevent accidentally writing to
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the root device. The default is set to true.
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.IP \fBdisable_fallocate\fR
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Disable pre-allocate disk space for a file. The default is false.
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.IP \fBlog_name\fR
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Label used when logging. The default is swift.
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.IP \fBlog_facility\fR
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Syslog log facility. The default is LOG_LOCAL0.
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.IP \fBlog_level\fR
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Logging level. The default is INFO.
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.IP \fBlog_address\fR
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Logging address. The default is /dev/log.
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.IP \fBlog_max_line_length\fR
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The following caps the length of log lines to the value given; no limit if
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set to 0, the default.
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.IP \fBlog_custom_handlers\fR
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Comma separated list of functions to call to setup custom log handlers.
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functions get passed: conf, name, log_to_console, log_route, fmt, logger,
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adapted_logger. The default is empty.
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.IP \fBlog_udp_host\fR
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If set, log_udp_host will override log_address.
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.IP "\fBlog_udp_port\fR
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UDP log port, the default is 514.
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.IP \fBlog_statsd_host\fR
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StatsD server. IPv4/IPv6 addresses and hostnames are
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supported. If a hostname resolves to an IPv4 and IPv6 address, the IPv4
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address will be used.
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.IP \fBlog_statsd_port\fR
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The default is 8125.
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.IP \fBlog_statsd_default_sample_rate\fR
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The default is 1.
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.IP \fBlog_statsd_sample_rate_factor\fR
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The default is 1.
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.IP \fBlog_statsd_metric_prefix\fR
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The default is empty.
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.IP \fBdb_preallocation\fR
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If you don't mind the extra disk space usage in overhead, you can turn this
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on to preallocate disk space with SQLite databases to decrease fragmentation.
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The default is false.
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.IP \fBeventlet_debug\fR
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Debug mode for eventlet library. The default is false.
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.IP \fBfallocate_reserve\fR
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You can set fallocate_reserve to the number of bytes you'd like fallocate to
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reserve, whether there is space for the given file size or not. The default is 0.
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.RE
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.PD
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.SH PIPELINE SECTION
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.PD 1
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.RS 0
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This is indicated by section name [pipeline:main]. Below are the parameters that
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are acceptable within this section.
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.IP "\fBpipeline\fR"
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It is used when you need to apply a number of filters. It is a list of filters
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ended by an application. The normal pipeline is "healthcheck
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recon container-server".
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.RE
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.PD
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.SH APP SECTION
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.PD 1
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.RS 0
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This is indicated by section name [app:container-server]. Below are the parameters
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that are acceptable within this section.
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.IP "\fBuse\fR"
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Entry point for paste.deploy for the container server. This is the reference to the installed python egg.
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This is normally \fBegg:swift#container\fR.
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.IP "\fBset log_name\fR
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Label used when logging. The default is container-server.
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.IP "\fBset log_facility\fR
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Syslog log facility. The default is LOG_LOCAL0.
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.IP "\fBset log_level\fR
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Logging level. The default is INFO.
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.IP "\fBset log_requests\fR
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Enables request logging. The default is True.
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.IP "\fBset log_address\fR
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Logging address. The default is /dev/log.
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.IP \fBnode_timeout\fR
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Request timeout to external services. The default is 3 seconds.
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.IP \fBconn_timeout\fR
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Connection timeout to external services. The default is 0.5 seconds.
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.IP \fBallow_versions\fR
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The default is false.
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.IP \fBauto_create_account_prefix\fR
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The default is '.'.
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.IP \fBreplication_server\fR
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Configure parameter for creating specific server.
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To handle all verbs, including replication verbs, do not specify
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"replication_server" (this is the default). To only handle replication,
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set to a True value (e.g. "True" or "1"). To handle only non-replication
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verbs, set to "False". Unless you have a separate replication network, you
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should not specify any value for "replication_server".
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.RE
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.PD
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.SH FILTER SECTION
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.PD 1
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.RS 0
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Any section that has its name prefixed by "filter:" indicates a filter section.
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Filters are used to specify configuration parameters for specific swift middlewares.
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Below are the filters available and respective acceptable parameters.
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.IP "\fB[filter:healthcheck]\fR"
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.RE
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.RS 3
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.IP "\fBuse\fR"
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Entry point for paste.deploy for the healthcheck middleware. This is the reference to the installed python egg.
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This is normally \fBegg:swift#healthcheck\fR.
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.IP "\fBdisable_path\fR"
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An optional filesystem path which, if present, will cause the healthcheck
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URL to return "503 Service Unavailable" with a body of "DISABLED BY FILE".
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.RE
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.RS 0
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.IP "\fB[filter:recon]\fR"
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.RS 3
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.IP "\fBuse\fR"
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Entry point for paste.deploy for the recon middleware. This is the reference to the installed python egg.
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This is normally \fBegg:swift#recon\fR.
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.IP "\fBrecon_cache_path\fR"
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The recon_cache_path simply sets the directory where stats for a few items will be stored.
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Depending on the method of deployment you may need to create this directory manually
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and ensure that swift has read/write. The default is /var/cache/swift.
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.RE
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.PD
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.RS 0
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.IP "\fB[filter:xprofile]\fR"
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.RS 3
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.IP "\fBuse\fR"
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Entry point for paste.deploy for the xprofile middleware. This is the reference to the installed python egg.
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This is normally \fBegg:swift#xprofile\fR.
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.IP "\fBprofile_module\fR"
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This option enable you to switch profilers which should inherit from python
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standard profiler. Currently the supported value can be 'cProfile', 'eventlet.green.profile' etc.
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.IP "\fBlog_filename_prefix\fR"
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This prefix will be used to combine process ID and timestamp to name the
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profile data file. Make sure the executing user has permission to write
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into this path (missing path segments will be created, if necessary).
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If you enable profiling in more than one type of daemon, you must override
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it with an unique value like, the default is /var/log/swift/profile/account.profile.
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.IP "\fBdump_interval\fR"
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The profile data will be dumped to local disk based on above naming rule
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in this interval. The default is 5.0.
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.IP "\fBdump_timestamp\fR"
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Be careful, this option will enable profiler to dump data into the file with
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time stamp which means there will be lots of files piled up in the directory.
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The default is false
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.IP "\fBpath\fR"
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This is the path of the URL to access the mini web UI. The default is __profile__.
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.IP "\fBflush_at_shutdown\fR"
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Clear the data when the wsgi server shutdown. The default is false.
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.IP "\fBunwind\fR"
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Unwind the iterator of applications. Default is false.
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.RE
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.PD
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.SH ADDITIONAL SECTIONS
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.PD 1
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.RS 0
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The following sections are used by other swift-container services, such as replicator,
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updater, auditor and sync.
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.IP "\fB[container-replicator]\fR"
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.RE
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.RS 3
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.IP \fBlog_name\fR
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Label used when logging. The default is container-replicator.
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.IP \fBlog_facility\fR
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Syslog log facility. The default is LOG_LOCAL0.
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.IP \fBlog_level\fR
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Logging level. The default is INFO.
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.IP \fBlog_address\fR
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Logging address. The default is /dev/log.
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.IP \fBper_diff\fR
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Maximum number of database rows that will be sync'd in a single HTTP replication request. The default is 1000.
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.IP \fBmax_diffs\fR
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This caps how long the replicator will spend trying to sync a given database per pass so the other databases don't get starved. The default is 100.
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.IP \fBconcurrency\fR
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Number of replication workers to spawn. The default is 8.
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.IP "\fBrun_pause [deprecated]\fR"
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Time in seconds to wait between replication passes. The default is 30.
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.IP \fBinterval\fR
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Replaces run_pause with the more standard "interval", which means the replicator won't pause unless it takes less than the interval set. The default is 30.
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.IP \fBnode_timeout\fR
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Request timeout to external services. The default is 10 seconds.
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.IP \fBconn_timeout\fR
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Connection timeout to external services. The default is 0.5 seconds.
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.IP \fBreclaim_age\fR
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Time elapsed in seconds before an container can be reclaimed. The default is
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604800 seconds.
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.IP \fBrsync_compress\fR
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Allow rsync to compress data which is transmitted to destination node
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during sync. However, this is applicable only when destination node is in
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a different region than the local one. The default is false.
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.IP \fBrsync_module\fR
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Format of the rysnc module where the replicator will send data. See
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etc/rsyncd.conf-sample for some usage examples.
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.IP \fBrecon_cache_path\fR
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Path to recon cache directory. The default is /var/cache/swift.
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.RE
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.RS 0
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.IP "\fB[container-updater]\fR"
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.RE
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.RS 3
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.IP \fBlog_name\fR
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Label used when logging. The default is container-updater.
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.IP \fBlog_facility\fR
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Syslog log facility. The default is LOG_LOCAL0.
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.IP \fBlog_level\fR
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Logging level. The default is INFO.
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.IP \fBlog_address\fR
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Logging address. The default is /dev/log.
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.IP \fBinterval\fR
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Minimum time for a pass to take. The default is 300 seconds.
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.IP \fBconcurrency\fR
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Number of reaper workers to spawn. The default is 4.
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.IP \fBnode_timeout\fR
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Request timeout to external services. The default is 3 seconds.
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.IP \fBconn_timeout\fR
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Connection timeout to external services. The default is 0.5 seconds.
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.IP \fBslowdown\fR
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Slowdown will sleep that amount between containers. The default is 0.01 seconds.
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.IP \fBaccount_suppression_time\fR
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Seconds to suppress updating an account that has generated an error. The default is 60 seconds.
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.IP \fBrecon_cache_path\fR
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Path to recon cache directory. The default is /var/cache/swift.
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.RE
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.PD
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.RS 0
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.IP "\fB[container-auditor]\fR"
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.RE
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.RS 3
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.IP \fBlog_name\fR
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Label used when logging. The default is container-auditor.
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.IP \fBlog_facility\fR
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Syslog log facility. The default is LOG_LOCAL0.
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.IP \fBlog_level\fR
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Logging level. The default is INFO.
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.IP \fBlog_address\fR
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Logging address. The default is /dev/log.
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.IP \fBinterval\fR
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Will audit, at most, 1 container per device per interval. The default is 1800 seconds.
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.IP \fBcontainers_per_second\fR
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Maximum containers audited per second. Should be tuned according to individual system specs. 0 is unlimited. The default is 200.
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.IP \fBrecon_cache_path\fR
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Path to recon cache directory. The default is /var/cache/swift.
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.RE
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.RS 0
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.IP "\fB[container-sync]\fR"
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.RE
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.RS 3
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.IP \fBlog_name\fR
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Label used when logging. The default is container-sync.
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.IP \fBlog_facility\fR
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Syslog log facility. The default is LOG_LOCAL0.
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.IP \fBlog_level\fR
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Logging level. The default is INFO.
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.IP \fBlog_address\fR
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Logging address. The default is /dev/log.
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.IP \fBsync_proxy\fR
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If you need to use an HTTP Proxy, set it here; defaults to no proxy.
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.IP \fBinterval\fR
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Will audit, at most, each container once per interval. The default is 300 seconds.
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.IP \fBcontainer_time\fR
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Maximum amount of time to spend syncing each container per pass. The default is 60 seconds.
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.IP \fBconn_timeout\fR
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Connection timeout to external services. The default is 5 seconds.
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.IP \fBrequest_tries\fR
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Server errors from requests will be retried by default. The default is 3.
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.IP \fBinternal_client_conf_path\fR
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Internal client config file path.
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.RE
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.PD
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.SH DOCUMENTATION
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.LP
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More in depth documentation about the swift-container-server and
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also Openstack-Swift as a whole can be found at
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.BI http://swift.openstack.org/admin_guide.html
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and
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.BI http://swift.openstack.org
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.SH "SEE ALSO"
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.BR swift-container-server(1)
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