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# Options are: |
# heap_buffers: on heap nio buffers |
# offheap_buffers: off heap (direct) nio buffers |
# offheap_objects: off heap objects |
memtable_allocation_type: heap_buffers |
# Total space to use for commit logs on disk. |
# |
# If space gets above this value, Cassandra will flush every dirty CF |
# in the oldest segment and remove it. So a small total commitlog space |
# will tend to cause more flush activity on less-active columnfamilies. |
# |
# The default value is the smaller of 8192, and 1/4 of the total space |
# of the commitlog volume. |
# |
# commitlog_total_space_in_mb: 8192 |
# This sets the amount of memtable flush writer threads. These will |
# be blocked by disk io, and each one will hold a memtable in memory |
# while blocked. |
# |
# memtable_flush_writers defaults to one per data_file_directory. |
# |
# If your data directories are backed by SSD, you can increase this, but |
# avoid having memtable_flush_writers * data_file_directories > number of cores |
#memtable_flush_writers: 1 |
# A fixed memory pool size in MB for for SSTable index summaries. If left |
# empty, this will default to 5% of the heap size. If the memory usage of |
# all index summaries exceeds this limit, SSTables with low read rates will |
# shrink their index summaries in order to meet this limit. However, this |
# is a best-effort process. In extreme conditions Cassandra may need to use |
# more than this amount of memory. |
index_summary_capacity_in_mb: |
# How frequently index summaries should be resampled. This is done |
# periodically to redistribute memory from the fixed-size pool to sstables |
# proportional their recent read rates. Setting to -1 will disable this |
# process, leaving existing index summaries at their current sampling level. |
index_summary_resize_interval_in_minutes: 60 |
# Whether to, when doing sequential writing, fsync() at intervals in |
# order to force the operating system to flush the dirty |
# buffers. Enable this to avoid sudden dirty buffer flushing from |
# impacting read latencies. Almost always a good idea on SSDs; not |
# necessarily on platters. |
trickle_fsync: false |
trickle_fsync_interval_in_kb: 10240 |
# TCP port, for commands and data |
# For security reasons, you should not expose this port to the internet. Firewall it if needed. |
storage_port: 7000 |
# SSL port, for encrypted communication. Unused unless enabled in |
# encryption_options |
# For security reasons, you should not expose this port to the internet. Firewall it if needed. |
ssl_storage_port: 7001 |
# Address or interface to bind to and tell other Cassandra nodes to connect to. |
# You _must_ change this if you want multiple nodes to be able to communicate! |
# |
# Set listen_address OR listen_interface, not both. Interfaces must correspond |
# to a single address, IP aliasing is not supported. |
# |
# Leaving it blank leaves it up to InetAddress.getLocalHost(). This |
# will always do the Right Thing _if_ the node is properly configured |
# (hostname, name resolution, etc), and the Right Thing is to use the |
# address associated with the hostname (it might not be). |
# |
# Setting listen_address to 0.0.0.0 is always wrong. |
# |
# If you choose to specify the interface by name and the interface has an ipv4 and an ipv6 address |
# you can specify which should be chosen using listen_interface_prefer_ipv6. If false the first ipv4 |
# address will be used. If true the first ipv6 address will be used. Defaults to false preferring |
# ipv4. If there is only one address it will be selected regardless of ipv4/ipv6. |
listen_address: localhost |
# listen_interface: eth0 |
# listen_interface_prefer_ipv6: false |
# Address to broadcast to other Cassandra nodes |
# Leaving this blank will set it to the same value as listen_address |
# broadcast_address: 1.2.3.4 |
# When using multiple physical network interfaces, set this |
# to true to listen on broadcast_address in addition to |
# the listen_address, allowing nodes to communicate in both |
# interfaces. |
# Ignore this property if the network configuration automatically |
# routes between the public and private networks such as EC2. |
# listen_on_broadcast_address: false |
# Internode authentication backend, implementing IInternodeAuthenticator; |
# used to allow/disallow connections from peer nodes. |
# internode_authenticator: org.apache.cassandra.auth.AllowAllInternodeAuthenticator |
# Whether to start the native transport server. |
# Please note that the address on which the native transport is bound is the |
# same as the rpc_address. The port however is different and specified below. |
start_native_transport: true |
# port for the CQL native transport to listen for clients on |
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