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| <appendix xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="Java-Broker-Appendix-System-Properties"> |
| <title>System Properties</title> |
| <para>The following table describes the Java system properties used by the Broker to control |
| various optional behaviours.</para> |
| <para>The preferred method of enabling these system properties is using the <link linkend="Java-Broker-Appendix-Environment-Variables-Qpid-Opts"><literal>QPID_OPTS</literal></link> environment variable described in the previous |
| section.</para> |
| <table pgwide="1"> |
| <title>System properties</title> |
| <tgroup cols="3"> |
| <thead> |
| <row> |
| <entry>System property</entry> |
| <entry>Default</entry> |
| <entry>Purpose</entry> |
| </row> |
| </thead> |
| <tbody> |
| <row xml:id="Java-Broker-Appendix-System-Properties-Broker-Heartbeat-Timeout-Factor"> |
| <entry>qpid.broker_heartbeat_timeout_factor</entry> |
| <entry>2</entry> |
| <entry>Factor to determine the maximum length of that may elapse between heartbeats being |
| received from the peer before a connection is deemed to have been broken.</entry> |
| </row> |
| <row xml:id="Java-Broker-Appendix-System-Properties-Broker-Status-Updates"> |
| <entry>qpid.broker_status_updates</entry> |
| <entry>true</entry> |
| <entry> |
| <para>If set true, the Broker will produce operational logging messages.</para> |
| </entry> |
| </row> |
| <row xml:id="Java-Broker-Appendix-System-Properties-Broker-Disabled-Features"> |
| <entry>qpid.broker_disabled_features</entry> |
| <entry>none</entry> |
| <entry> |
| <para>Allows optional Broker features to be disabled. Currently understood feature |
| names are: <literal>qpid.jms-selector</literal></para> |
| <para>Feature names should be comma separated.</para> |
| </entry> |
| </row> |
| </tbody> |
| </tgroup> |
| </table> |
| </appendix> |