mirror of https://github.com/apache/cassandra
185 lines
7.5 KiB
Plaintext
185 lines
7.5 KiB
Plaintext
#
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. 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 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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#
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###########################################################################
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# jvm-server.options #
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# #
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# - all flags defined here will be used by cassandra to startup the JVM #
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# - one flag should be specified per line #
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# - lines that do not start with '-' will be ignored #
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# - only static flags are accepted (no variables or parameters) #
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# - dynamic flags will be appended to these on cassandra-env #
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# #
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# See jvm11-server.options and jvm17-server.options for Java version #
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# specific options. #
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###########################################################################
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######################
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# STARTUP PARAMETERS #
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######################
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# Uncomment any of the following properties to enable specific startup parameters
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# In a multi-instance deployment, multiple Cassandra instances will independently assume that all
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# CPU processors are available to it. This setting allows you to specify a smaller set of processors
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# and perhaps have affinity.
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#-Dcassandra.available_processors=number_of_processors
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# The directory location of the cassandra.yaml file.
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#-Dcassandra.config=directory
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# Sets the initial partitioner token for a node the first time the node is started.
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#-Dcassandra.initial_token=token
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# Set to false to start Cassandra on a node but not have the node join the cluster.
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#-Dcassandra.join_ring=true|false
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# Set to false to clear all gossip state for the node on restart. Use when you have changed node
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# information in cassandra.yaml (such as listen_address).
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#-Dcassandra.load_ring_state=true|false
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# Set the port on which the CQL native transport listens for clients. (Default: 9042)
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#-Dcassandra.native_transport_port=port
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# Overrides the partitioner. (Default: org.apache.cassandra.dht.Murmur3Partitioner)
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#-Dcassandra.partitioner=partitioner
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# To replace a node that has died, restart a new node in its place specifying the address of the
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# dead node. The new node must not have any data in its data directory, that is, it must be in the
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# same state as before bootstrapping.
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#-Dcassandra.replace_address=listen_address or broadcast_address of dead node
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# Allow restoring specific tables from an archived commit log.
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#-Dcassandra.replayList=table
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# Allows overriding of the default RING_DELAY (30000ms), which is the amount of time a node waits
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# before joining the ring.
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#-Dcassandra.ring_delay_ms=ms
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# Set the SSL port for encrypted communication. (Default: 7001)
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#-Dcassandra.ssl_storage_port=port
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# Set the port for inter-node communication. (Default: 7000)
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#-Dcassandra.storage_port=port
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# Set the default location for the trigger JARs. (Default: conf/triggers)
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#-Dcassandra.triggers_dir=directory
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# For testing new compaction and compression strategies. It allows you to experiment with different
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# strategies and benchmark write performance differences without affecting the production workload.
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#-Dcassandra.write_survey=true
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# To disable configuration via JMX of auth caches (such as those for credentials, permissions and
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# roles). This will mean those config options can only be set (persistently) in cassandra.yaml
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# and will require a restart for new values to take effect.
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#-Dcassandra.disable_auth_caches_remote_configuration=true
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# To disable dynamic calculation of the page size used when indexing an entire partition (during
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# initial index build/rebuild). If set to true, the page size will be fixed to the default of
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# 10000 rows per page.
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#-Dcassandra.force_default_indexing_page_size=true
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# Imposes an upper bound on hint lifetime below the normal min gc_grace_seconds
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#-Dcassandra.maxHintTTL=max_hint_ttl_in_seconds
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########################
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# GENERAL JVM SETTINGS #
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########################
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# enable assertions. highly suggested for correct application functionality.
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-ea
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# disable assertions for net.openhft.** because it runs out of memory by design
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# if enabled and run for more than just brief testing
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-da:net.openhft...
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# enable thread priorities, primarily so we can give periodic tasks
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# a lower priority to avoid interfering with client workload
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-XX:+UseThreadPriorities
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# Enable heap-dump if there's an OOM
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-XX:+HeapDumpOnOutOfMemoryError
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# Per-thread stack size.
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-Xss256k
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# Make sure all memory is faulted and zeroed on startup.
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# This helps prevent soft faults in containers and makes
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# transparent hugepage allocation more effective.
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-XX:+AlwaysPreTouch
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# Enable thread-local allocation blocks and allow the JVM to automatically
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# resize them at runtime.
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-XX:+UseTLAB
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-XX:+ResizeTLAB
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-XX:+UseNUMA
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# http://www.evanjones.ca/jvm-mmap-pause.html
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-XX:+PerfDisableSharedMem
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# Prefer binding to IPv4 network intefaces (when net.ipv6.bindv6only=1). See
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# http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6342561 (short version:
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# comment out this entry to enable IPv6 support).
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-Djava.net.preferIPv4Stack=true
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# Disable chronicle analytics. See CASSANDRA-19656
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-Dchronicle.analytics.disable=true
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### Debug options
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# uncomment to enable flight recorder
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#-XX:+FlightRecorder
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# uncomment to have Cassandra JVM listen for remote debuggers/profilers on port 1414
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#-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=1414
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# uncomment to have Cassandra JVM log internal method compilation (developers only)
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#-XX:+UnlockDiagnosticVMOptions
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#-XX:+LogCompilation
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#################
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# HEAP SETTINGS #
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#################
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# Heap size is automatically calculated by cassandra-env.sh based on the
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# formula: min(1/2 ram, CMS ? 16G : 31G)
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#
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# For production use you may wish to adjust this for your environment.
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# If that's the case, see MAX_HEAP_SIZE (and HEAP_NEWSIZE for CMS) in cassandra-env.sh
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#####################
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# OFF-HEAP SETTINGS #
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#####################
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# By default, this setting is half of max heap size
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#-XX:MaxDirectMemorySize=
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###################################
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# EXPIRATION DATE OVERFLOW POLICY #
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###################################
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# Defines how to handle INSERT requests with TTL exceeding the maximum supported expiration date:
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# * REJECT: this is the default policy and will reject any requests with expiration date timestamp
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# after 2106-02-07T06:28:13+00:00 or 2038-01-19T03:14:06+00:00 depending on compatibility mode (<="oa" sstable formats)
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# * CAP: any insert with TTL expiring after 2106-02-07T06:28:13+00:00 or 2038-01-19T03:14:06+00:00,
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# depending on compatibility mode (<="oa" sstable formats), will expire on 2106-02-07T06:28:13+00:00
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# or 2038-01-19T03:14:06+00:00 and the client will receive a warning.
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# * CAP_NOWARN: same as previous, except that the client warning will not be emitted.
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#
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#-Dcassandra.expiration_date_overflow_policy=REJECT
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