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| <main class="article default-main full-800" data-ceiling="topbar"> |
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| <p>You are viewing the documentation for a prerelease version.</p> |
| </div> |
| <div class="article-header"> |
| <nav class="crumbs" aria-label="breadcrumbs"> |
| <ul> |
| <li class="crumb">Cassandra</li> |
| <li class="crumb"><a href="../index.html">Managing</a></li> |
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| </div> |
| <article class="doc"> |
| <h1 class="page">cassandra-env.sh file</h1> |
| <div id="preamble"> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>The <code>cassandra-env.sh</code> bash script file can be used to pass additional |
| options to the Java virtual machine (JVM), such as maximum and minimum |
| heap size, rather than setting them in the environment. If the JVM |
| settings are static and do not need to be computed from the node |
| characteristics, the <code>cassandra-jvm-options</code> files should be used |
| instead. For example, commonly computed values are the heap sizes, using |
| the system values.</p> |
| </div> |
| <div class="paragraph"> |
| <p>For example, add |
| <code>JVM_OPTS="$JVM_OPTS -Dcassandra.load_ring_state=false"</code> to the |
| <code>cassandra_env.sh</code> file and run the command-line <code>cassandra</code> to start. |
| The option is set from the <code>cassandra-env.sh</code> file, and is equivalent to |
| starting Cassandra with the command-line option |
| <code>cassandra -Dcassandra.load_ring_state=false</code>.</p> |
| </div> |
| <div class="paragraph"> |
| <p>The <code>-D</code> option specifies the start-up parameters in both the command |
| line and <code>cassandra-env.sh</code> file. The following options are available:</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-auto_bootstrapfalse"><a class="anchor" href="#cassandra-auto_bootstrapfalse"></a><code>cassandra.auto_bootstrap=false</code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Facilitates setting auto_bootstrap to false on initial set-up of the |
| cluster. The next time you start the cluster, you do not need to change |
| the <code>cassandra.yaml</code> file on each node to revert to true, the default |
| value.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-available_processorsnumber_of_processors"><a class="anchor" href="#cassandra-available_processorsnumber_of_processors"></a><code>cassandra.available_processors=<number_of_processors></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>In a multi-instance deployment, multiple Cassandra instances will |
| independently assume that all CPU processors are available to it. This |
| setting allows you to specify a smaller set of processors.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-boot_without_jnatrue"><a class="anchor" href="#cassandra-boot_without_jnatrue"></a><code>cassandra.boot_without_jna=true</code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>If JNA fails to initialize, Cassandra fails to boot. Use this command to |
| boot Cassandra without JNA.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-configdirectory"><a class="anchor" href="#cassandra-configdirectory"></a><code>cassandra.config=<directory></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>The directory location of the <code>cassandra.yaml file</code>. The default |
| location depends on the type of installation.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-ignore_dynamic_snitch_severitytruefalse"><a class="anchor" href="#cassandra-ignore_dynamic_snitch_severitytruefalse"></a><code>cassandra.ignore_dynamic_snitch_severity=true|false</code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Setting this property to true causes the dynamic snitch to ignore the |
| severity indicator from gossip when scoring nodes. Explore failure |
| detection and recovery and dynamic snitching for more information.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> false</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-initial_tokentoken"><a class="anchor" href="#cassandra-initial_tokentoken"></a><code>cassandra.initial_token=<token></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Use when virtual nodes (vnodes) are not used. Sets the initial |
| partitioner token for a node the first time the node is started. Note: |
| Vnodes are highly recommended as they automatically select tokens.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> disabled</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-join_ringtruefalse"><a class="anchor" href="#cassandra-join_ringtruefalse"></a><code>cassandra.join_ring=true|false</code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set to false to start Cassandra on a node but not have the node join the |
| cluster. You can use <code>nodetool join</code> and a JMX call to join the ring |
| afterwards.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> true</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-load_ring_statetruefalse"><a class="anchor" href="#cassandra-load_ring_statetruefalse"></a><code>cassandra.load_ring_state=true|false</code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set to false to clear all gossip state for the node on restart.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> true</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-partitionerpartitioner"><a class="anchor" href="#cassandra-partitionerpartitioner"></a><code>cassandra.partitioner=<partitioner></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set the partitioner.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> org.apache.cassandra.dht.Murmur3Partitioner</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-prepared_statements_cache_size_in_bytescache_size"><a class="anchor" href="#cassandra-prepared_statements_cache_size_in_bytescache_size"></a><code>cassandra.prepared_statements_cache_size_in_bytes=<cache_size></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set the cache size for prepared statements.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-replace_addresslisten_address-of-dead-nodebroadcast_address-of-dead-node"><a class="anchor" href="#cassandra-replace_addresslisten_address-of-dead-nodebroadcast_address-of-dead-node"></a><code>cassandra.replace_address=<listen_address of dead node>|<broadcast_address of dead node></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>To replace a node that has died, restart a new node in its place |
| specifying the <code>listen_address</code> or <code>broadcast_address</code> that the new node |
| is assuming. The new node must not have any data in its data directory, |
| the same state as before bootstrapping. Note: The <code>broadcast_address</code> |
| defaults to the <code>listen_address</code> except when using the |
| <code>Ec2MultiRegionSnitch</code>.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-replaylisttable"><a class="anchor" href="#cassandra-replaylisttable"></a><code>cassandra.replayList=<table></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Allow restoring specific tables from an archived commit log.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-ring_delay_msnumber_of_ms"><a class="anchor" href="#cassandra-ring_delay_msnumber_of_ms"></a><code>cassandra.ring_delay_ms=<number_of_ms></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Defines the amount of time a node waits to hear from other nodes before |
| formally joining the ring.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> 1000ms</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-native_transport_portport"><a class="anchor" href="#cassandra-native_transport_portport"></a><code>cassandra.native_transport_port=<port></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set the port on which the CQL native transport listens for clients.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> 9042</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-rpc_portport"><a class="anchor" href="#cassandra-rpc_portport"></a><code>cassandra.rpc_port=<port></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set the port for the Thrift RPC service, which is used for client |
| connections.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> 9160</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-storage_portport"><a class="anchor" href="#cassandra-storage_portport"></a><code>cassandra.storage_port=<port></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set the port for inter-node communication.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> 7000</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-ssl_storage_portport"><a class="anchor" href="#cassandra-ssl_storage_portport"></a><code>cassandra.ssl_storage_port=<port></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set the SSL port for encrypted communication.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> 7001</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-start_native_transporttruefalse"><a class="anchor" href="#cassandra-start_native_transporttruefalse"></a><code>cassandra.start_native_transport=true|false</code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Enable or disable the native transport server. See |
| <code>start_native_transport</code> in <code>cassandra.yaml</code>.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> true</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-start_rpctruefalse"><a class="anchor" href="#cassandra-start_rpctruefalse"></a><code>cassandra.start_rpc=true|false</code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Enable or disable the Thrift RPC server.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> true</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-triggers_dirdirectory"><a class="anchor" href="#cassandra-triggers_dirdirectory"></a><code>cassandra.triggers_dir=<directory></code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set the default location for the trigger JARs.</p> |
| </div> |
| <div class="paragraph"> |
| <p><strong>Default:</strong> conf/triggers</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="cassandra-write_surveytrue"><a class="anchor" href="#cassandra-write_surveytrue"></a><code>cassandra.write_survey=true</code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>For testing new compaction and compression strategies. It allows you to |
| experiment with different strategies and benchmark write performance |
| differences without affecting the production workload.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="consistent-rangemovementtruefalse"><a class="anchor" href="#consistent-rangemovementtruefalse"></a><code>consistent.rangemovement=true|false</code></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Set to true makes Cassandra perform bootstrap safely without violating |
| consistency. False disables this.</p> |
| </div> |
| </div> |
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