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<title xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:d="http://docbook.org/ns/docbook">4.4.1. Object Server Configuration - OpenStack Object Storage Administrator Manual

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</style><link rel="shortcut icon" href="../favicon.ico" type="image/x-icon"/><link rel="stylesheet" type="text/css" href="../common/css/positioning.css"/><link rel="stylesheet" type="text/css" href="../common/jquery/theme-redmond/jquery-ui-1.8.2.custom.css"/><link rel="stylesheet" type="text/css" href="../common/jquery/treeview/jquery.treeview.css"/><script type="text/javascript" src="../common/jquery/jquery-1.4.2.min.js"></script><script type="text/javascript" src="../common/jquery/jquery-ui-1.8.2.custom.min.js"></script><script type="text/javascript" src="../common/jquery/jquery.cookie.js"></script><script type="text/javascript" src="../common/jquery/treeview/jquery.treeview.min.js"></script><script type="text/javascript" src="search/htmlFileList.js"></script><script type="text/javascript" src="search/htmlFileInfoList.js"></script><script type="text/javascript" src="search/nwSearchFnt.js"></script><script type="text/javascript" src="search/stemmers/en_stemmer.js"></script><script type="text/javascript" src="search/index-1.js"></script><script type="text/javascript" src="search/index-2.js"></script><script type="text/javascript" src="search/index-3.js"></script></head><body><div xmlns="" id="header"><img src="../common/images/openstack-logo.png" alt="OpenStack Documentation" width="157" height="47"/><p class="breadcrumbs"><a href="http://docs.openstack.org/">OpenStack Manuals</a></p><h1>4.4.1. Object Server Configuration</h1><div id="navheader" align="right"><table class="navLinks"><tr><td><a id="showHideButton" onclick="showHideToc();" class="pointLeft" title="Hide TOC tree">Sidebar

</a></td><td><a accesskey="p" class="navLinkPrevious" href="server-configuration-reference.html">Prev</a>

<a accesskey="n" class="navLinkNext" href="ch04s04s02.html">Next</a></td></tr></table></div></div><div id="content"><div class="section" title="4.4.1. Object Server Configuration"><div class="titlepage"><div><div><h3 class="title"><a id="d252e459"/>4.4.1. Object Server Configuration</h3></div></div></div><p>An Example Object Server configuration can be found at

etc/object-server.conf-sample in the source code repository.</p><p>The following configuration options are available:</p><table rules="all" id="d252e463"><caption>Table 4.1. object-server.conf Default Options in the [DEFAULT] section</caption><tbody><tr>

<td>Option</td>

<td>Default</td>

<td>Description</td>

</tr><tr>

<td>swift_dir</td>

<td>/etc/swift</td>

<td>Swift configuration directory</td>

</tr><tr>

<td>devices</td>

<td>Parent directory of where devices are mounted</td>

</tr><tr>

<td>mount_check</td>

<td>Whether or not check if the devices are mounted to prevent accidentally

writing to the root device</td>

</tr><tr>

<td>IP Address for server to bind to</td>

</tr><tr>

<td>Port for server to bind to</td>

</tr><tr>

<td>workers</td>

<td>Number of workers to fork</td>

</tr></tbody></table><table rules="all" id="d252e494"><caption>Table 4.2. object-server.conf Server Options in the [object-server] section</caption><tbody><tr>

<td>Option</td>

<td>Default</td>

<td>Description</td>

</tr><tr>

<td>paste.deploy entry point for the object server. For most cases, this

should be <code class="code">egg:swift#object</code>.</td>

</tr><tr>

<td>object-server</td>

<td>Label used when logging</td>

</tr><tr>

<td>log_facility</td>

<td>LOG_LOCAL0</td>

<td>Syslog log facility</td>

</tr><tr>

<td>log_level</td>

<td>Logging level</td>

</tr><tr>

<td>log_requests</td>

<td>Whether or not to log each request</td>

</tr><tr>

<td>swift</td>

</tr><tr>

<td>node_timeout</td>

<td>Request timeout to external services</td>

</tr><tr>

100

<td>conn_timeout</td>

101

102

<td>Connection timeout to external services</td>

103

</tr><tr>

104

<td>network_chunk_size</td>

105

106

<td>Size of chunks to read/write over the network</td>

107

</tr><tr>

108

<td>disk_chunk_size</td>

109

110

<td>Size of chunks to read/write to disk</td>

111

</tr><tr>

112

<td>max_upload_time</td>

113

114

<td>Maximum time allowed to upload an object</td>

115

</tr><tr>

116

117

118

<td>If > 0, Minimum time in seconds for a PUT or DELETE request to

119

complete</td>

120

</tr></tbody></table><table rules="all" id="d252e550"><caption>Table 4.3. object-server.conf Replicator Options in the [object-replicator] section</caption><tbody><tr>

121

<td>Option</td>

122

<td>Default</td>

123

<td>Description</td>

124

</tr><tr>

125

126

<td>object-replicator</td>

127

<td>Label used when logging</td>

128

</tr><tr>

129

<td>log_facility</td>

130

<td>LOG_LOCAL0</td>

131

<td>Syslog log facility</td>

132

</tr><tr>

133

<td>log_level</td>

134

135

<td>Logging level</td>

136

</tr><tr>

137

<td>daemonize</td>

138

139

<td>Whether or not to run replication as a daemon</td>

140

</tr><tr>

141

<td>run_pause</td>

142

143

<td>Time in seconds to wait between replication passes</td>

144

</tr><tr>

145

<td>concurrency</td>

146

147

<td>Number of replication workers to spawn</td>

148

</tr><tr>

149

<td>timeout</td>

150

151

<td>Timeout value sent to rsync –timeout and –contimeout

152

options</td>

153

</tr><tr>

154

<td>stats_interval</td>

155

156

<td>Interval in seconds between logging replication statistics</td>

157

</tr><tr>

158

<td>reclaim_age</td>

159

160

<td>Time elapsed in seconds before an object can be reclaimed</td>

161

</tr></tbody></table><table rules="all" id="d252e593"><caption>Table 4.4. object-server.conf Updater Options in the [object-updater] section</caption><tbody><tr>

162

<td>Option</td>

163

<td>Default</td>

164

<td>Description</td>

165

</tr><tr>

166

167

<td>object-updater</td>

168

<td>Label used when logging</td>

169

</tr><tr>

170

<td>log_facility</td>

171

<td>LOG_LOCAL0</td>

172

<td>Syslog log facility</td>

173

</tr><tr>

174

<td>log_level</td>

175

176

<td>Logging level</td>

177

</tr><tr>

178

<td>interval</td>

179

180

<td>Minimum time for a pass to take</td>

181

</tr><tr>

182

<td>concurrency</td>

183

184

<td>Number of updater workers to spawn</td>

185

</tr><tr>

186

<td>node_timeout</td>

187

188

<td>Request timeout to external services</td>

189

</tr><tr>

190

<td>conn_timeout</td>

191

192

<td>Connection timeout to external services</td>

193

</tr><tr>

194

<td>slowdown</td>

195

196

<td>Time in seconds to wait between objects</td>

197

</tr></tbody></table><table rules="all" id="d252e632"><caption>Table 4.5. object-server.conf Auditor Options in the [object-auditor] section</caption><tbody><tr>

198

<td>Option</td>

199

<td>Default</td>

200

<td>Description</td>

201

</tr><tr>

202

203

<td>object-auditor</td>

204

<td>Label used when logging</td>

205

</tr><tr>

206

<td>log_facility</td>

207

<td>LOG_LOCAL0</td>

208

<td>Syslog log facility</td>

209

</tr><tr>

210

<td>log_level</td>

211

212

<td>Logging level</td>

213

</tr><tr>

214

<td>files_per_second</td>

215

216

<td>Maximum files audited per second. Should be tuned according to

217

individual system specs. 0 is unlimited.</td>

218

</tr><tr>

219

<td>bytes_per_second</td>

220

221

<td>Maximum bytes audited per second. Should be tuned according to

222

individual system specs. 0 is unlimited.</td>

223

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Getting Started with OpenStack</a></span><ul><li><span class="file"><a href="what-is-openstack.html">1.1. What is OpenStack?</a></span></li><li><span class="file"><a href="components-of-openstack.html">1.2. Components of OpenStack</a></span></li><li><span class="file"><a href="why-cloud.html">1.3. Why Cloud?</a></span></li></ul></li><li xmlns="http://www.w3.org/1999/xhtml"><span class="file"><a href="ch_introduction-to-openstack-object-storage.html">2. Introduction to OpenStack Object Storage</a></span><ul><li><span class="file"><a href="accounts-and-account-servers.html">2.1. Accounts and Account Servers</a></span></li><li><span class="file"><a href="authentication-and-access-permissions.html">2.2. Authentication and Access Permissions</a></span></li><li><span class="file"><a href="containers-and-objects.html">2.3. Containers and Objects</a></span></li><li><span class="file"><a href="operations.html">2.4. Operations</a></span></li><li><span class="file"><a href="language-specific-api-bindings.html">2.5. Language-Specific API Bindings</a></span></li></ul></li><li xmlns="http://www.w3.org/1999/xhtml"><span class="file"><a href="ch_installing-and-configuring-openstack-object-storage.html">3. Installing and Configuring OpenStack Object Storage</a></span><ul><li><span class="file"><a href="object-storage-system-requirements.html">3.1. System Requirements</a></span></li><li><span class="file"><a href="installing-openstack-object-storage-on-ubuntu.html">3.2. Installing OpenStack Object Storage on Ubuntu</a></span><ul><li><span class="file"><a href="ch03s02s01.html">3.2.1. Before You Begin</a></span></li><li><span class="file"><a href="ch03s02s02.html">3.2.2. Example Installation Architecture</a></span></li><li><span class="file"><a href="ch03s02s03.html">3.2.3. Network Setup Notes</a></span></li><li><span class="file"><a href="ch03s02s04.html">3.2.4. General Installation Steps </a></span></li></ul></li><li><span class="file"><a href="configuring-openstack-object-storage.html">3.3. Configuring OpenStack Object Storage </a></span><ul><li><span class="file"><a href="ch03s03s01.html">3.3.1. Installing and Configuring the Proxy Node</a></span></li><li><span class="file"><a href="ch03s03s02.html">3.3.2. Installing and Configuring the Auth Node</a></span></li><li><span class="file"><a href="ch03s03s03.html">3.3.3. Installing and Configuring the Storage Nodes</a></span><ul><li><span class="file"><a href="ch03s03s03s01.html">3.3.3.1. Create OpenStack Object Storage admin Account and Verify the Installation</a></span></li><li><span class="file"><a href="ch03s03s03s02.html">3.3.3.2. Adding a Proxy Server</a></span></li><li><span class="file"><a href="ch03s03s03s03.html">3.3.3.3. Troubleshooting Notes</a></span></li></ul></li></ul></li></ul></li><li xmlns="http://www.w3.org/1999/xhtml"><span class="file"><a href="ch_running-openstack-object-storage.html">4. Running OpenStack Object Storage</a></span><ul><li><span class="file"><a href="understanding-how-object-storage-works.html">4.1. Understanding How Object Storage Works</a></span><ul><li><span class="file"><a href="understanding-how-object-storage-works.html#d252e383">4.1.1. The Ring</a></span></li><li><span class="file"><a href="understanding-how-object-storage-works.html#d252e391">4.1.2. Proxy Server</a></span></li><li><span class="file"><a href="understanding-how-object-storage-works.html#d252e396">4.1.3. Object Server</a></span></li><li><span class="file"><a href="understanding-how-object-storage-works.html#d252e400">4.1.4. Container Server</a></span></li><li><span class="file"><a href="understanding-how-object-storage-works.html#d252e403">4.1.5. Account Server</a></span></li><li><span class="file"><a href="understanding-how-object-storage-works.html#d252e406">4.1.6. Replication</a></span></li><li><span class="file"><a href="understanding-how-object-storage-works.html#d252e412">4.1.7. Updaters</a></span></li><li><span class="file"><a href="understanding-how-object-storage-works.html#d252e416">4.1.8. Auditors</a></span></li></ul></li><li><span class="file"><a href="configuring-and-tuning-openstack-object-storage.html">4.2. Configuring and Tuning OpenStack Object Storage</a></span></li><li><span class="file"><a href="preparing-the-ring.html">4.3. Preparing the Ring</a></span></li><li><span class="file"><a href="server-configuration-reference.html">4.4. Server Configuration Reference</a></span><ul><li id="webhelp-currentid"><span class="file"><a href="ch04s04s01.html">4.4.1. Object Server Configuration</a></span></li><li><span class="file"><a href="ch04s04s02.html">4.4.2. Container Server Configuration</a></span></li><li><span class="file"><a href="ch04s04s03.html">4.4.3. Account Server Configuration</a></span></li><li><span class="file"><a href="ch04s04s04.html">4.4.4. Proxy Server Configuration</a></span></li></ul></li><li><span class="file"><a href="considerations-and-tuning.html">4.5. Considerations and Tuning</a></span><ul><li><span class="file"><a href="ch04s05s01.html">4.5.1. Memcached Considerations</a></span></li><li><span class="file"><a href="ch04s05s02.html">4.5.2. System Time</a></span></li><li><span class="file"><a href="ch04s05s03.html">4.5.3. General Service Tuning</a></span></li><li><span class="file"><a href="ch04s05s04.html">4.5.4. Filesystem Considerations</a></span></li><li><span class="file"><a href="ch04s05s05.html">4.5.5. General System Tuning</a></span></li><li><span class="file"><a href="ch04s05s06.html">4.5.6. Logging Considerations</a></span></li><li><span class="file"><a href="ch04s05s07.html">4.5.7. Working with Rings</a></span><ul><li><span class="file"><a href="ch04s05s07s01.html">4.5.7.1. Managing Rings with the Ring Builder</a></span><ul><li><span class="file"><a href="ch04s05s07s01s01.html">About the Ring Data Structure</a></span><ul><li><span class="file"><a href="ch04s05s07s01s01s01.html">List of Devices in the Ring</a></span></li></ul></li><li><span class="file"><a href="ch04s05s07s01s02.html">Partition Assignment List</a></span></li><li><span class="file"><a href="ch04s05s07s01s03.html">Partition Shift Value</a></span></li></ul></li><li><span class="file"><a href="ch04s05s07s02.html">4.5.7.2. Building the Ring</a></span></li><li><span class="file"><a href="ch04s05s07s03.html">4.5.7.3. History of the Ring Design</a></span></li></ul></li><li><span class="file"><a href="ch04s05s08.html">4.5.8. The Account Reaper</a></span><ul><li><span class="file"><a href="ch04s05s08s01.html">4.5.8.1. Account Reaper Background and History</a></span></li></ul></li></ul></li><li><span class="file"><a href="replication.html">4.6. Replication</a></span><ul><li><span class="file"><a href="ch04s06s01.html">4.6.1. Database Replication</a></span></li><li><span class="file"><a href="ch04s06s02.html">4.6.2. Object Replication</a></span></li></ul></li><li><span class="file"><a href="managing-large-objects.html">4.7. Managing Large Objects (Greater than 5 GB)</a></span><ul><li><span class="file"><a href="ch04s07s01.html">4.7.1. Using st to Manage Segmented Objects</a></span></li><li><span class="file"><a href="ch04s07s02.html">4.7.2. Direct API Management of Large Objects</a></span></li><li><span class="file"><a href="ch04s07s03.html">4.7.3. Additional Notes on Large Objects</a></span></li><li><span class="file"><a href="ch04s07s04.html">4.7.4. Large Object Storage History and Background</a></span></li></ul></li><li><span class="file"><a href="throttling-resources-by-setting-rate-limits.html">4.8. Throttling Resources by Setting Rate Limits</a></span><ul><li><span class="file"><a href="ch04s08s01.html">4.8.1. Configuration for Rate Limiting</a></span></li></ul></li><li><span class="file"><a href="managing-openstack-object-storage-with-st.html">4.9. Managing OpenStack Object Storage with ST</a></span><ul><li><span class="file"><a href="ch04s09s01.html">4.9.1. ST Basics</a></span><ul><li><span class="file"><a href="ch04s09s01.html#d252e1463">4.9.1.1. stat [container] [object]</a></span></li><li><span class="file"><a href="ch04s09s01.html#d252e1466">4.9.1.2. list [options] [container]</a></span></li><li><span class="file"><a href="ch04s09s01.html#d252e1469">4.9.1.3. upload [options] container file_or_directory [file_or_directory] […]</a></span></li><li><span class="file"><a href="ch04s09s01.html#d252e1472">4.9.1.4. post [options] [container] [object]</a></span></li><li><span class="file"><a href="ch04s09s01.html#d252e1476">4.9.1.5. download —all OR download container [object] [object] …</a></span></li><li><span class="file"><a href="ch04s09s01.html#d252e1479">4.9.1.6. delete —all OR delete container [object] [object] …</a></span></li><li><span class="file"><a href="ch04s09s01.html#d252e1483">4.9.1.7. Options for st</a></span></li></ul></li><li><span class="file"><a href="ch04s09s02.html">4.9.2. Analyzing Log Files with ST</a></span></li></ul></li></ul></li><li xmlns="http://www.w3.org/1999/xhtml"><span class="file"><a href="ch_openstack-object-storage-tutorials.html">5. OpenStack Object Storage Tutorials</a></span><ul><li><span class="file"><a href="storing-large-photos-or-videos-on-the-cloud.html">5.1. Storing Large Photos or Videos on the Cloud</a></span><ul><li><span class="file"><a href="part-i-setting-up-secure-access.html">5.1.1. Part I: Setting Up Secure Access</a></span></li><li><span class="file"><a href="part-ii-configuring-cyberduck.html">5.1.2. Part II: Configuring Cyberduck</a></span></li><li><span class="file"><a href="part-iii-copying-files.html">5.1.3. Part III: Copying Files</a></span></li></ul></li></ul></li><li xmlns="http://www.w3.org/1999/xhtml"><span class="file"><a href="ch_support-and-troubleshooting.html">6. Support and Troubleshooting</a></span><ul><li><span class="file"><a href="community-support.html">6.1. Community Support</a></span><ul><li><span class="file"><a href="community-support.html#d252e1557">6.1.1. The Launchpad Answers area</a></span></li><li><span class="file"><a href="community-support.html#d252e1562">6.1.2. OpenStack mailing list</a></span></li><li><span class="file"><a href="community-support.html#d252e1567">6.1.3. The OpenStack Wiki search </a></span></li><li><span class="file"><a href="community-support.html#d252e1571">6.1.4. The Launchpad Bugs area </a></span></li><li><span class="file"><a href="community-support.html#d252e1587">6.1.5. The OpenStack IRC channel </a></span></li></ul></li><li><span class="file"><a href="troubleshooting-openstack-object-storage.html">6.2. Troubleshooting OpenStack Object Storage</a></span><ul><li><span class="file"><a href="ch06s02s01.html">6.2.1. Handling Drive Failure</a></span></li><li><span class="file"><a href="ch06s02s02.html">6.2.2. Handling Server Failure</a></span></li><li><span class="file"><a href="ch06s02s03.html">6.2.3. Detecting Failed Drives</a></span></li></ul></li><li><span class="file"><a href="troubleshooting-openstack-compute.html">6.3. Troubleshooting OpenStack Compute</a></span><ul><li><span class="file"><a href="ch06s03s01.html">6.3.1. Log files for OpenStack Compute</a></span></li><li><span class="file"><a href="ch06s03s02.html">6.3.2. 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