Allowed configurations

note

• To successfully deploy the Cassandra data service, you must set the following mandatory parameters:

  • HEAP_NEWSIZE
  • MAX_HEAP_SIZE

  You can modify the values of these parameters according to your specific needs and the capabilities of your system.

• Use the parameters specified in the Environment variable column as key-value pairs either during the template configuration or when deploying the data service.

Java option	Environment variable	PDS default value
-Xmx, -Xms	MAX_HEAP_SIZE
-Xmn	HEAP_NEWSIZE
-Xmx, -Xms	CASSANDRA_MAX_HEAP
-Dcassandra.replace_address	CASSANDRA_REPLACE_NODE
-Dcassandra.migration_task_wait_in_seconds	CASSANDRA_MIGRATION_WAIT	1
-Dcassandra.ring_delay_ms	CASSANDRA_RING_DELAY	30000

Metrics exporter / Logging configuration	Environment variable	PDS default value
	CASSANDRA_METRICS_MODE	basic
	CASSANDRA_OPEN_JMX	FALSE
	CASSANDRA_GC_STDOUT	FALSE

Server configuration	Environment variable	PDS efault value
dc	CASSANDRA_DC	DC1
rack	CASSANDRA_RACK	RAC1
disk_optimization_strategy	CASSANDRA_DISK_OPTIMIZATION_STRATEGY	ssd
auto_bootstrap	CASSANDRA_AUTO_BOOTSTRAP	TRUE
num_tokens	CASSANDRA_NUM_TOKENS	32
start_rpc	CASSANDRA_START_RPC
key_cache_size_in_mb	CASSANDRA_KEY_CACHE_SIZE_IN_MB
concurrent_reads	CASSANDRA_CONCURRENT_READS
concurrent_writes	CASSANDRA_CONCURRENT_WRITES
memtable_cleanup_threshold	CASSANDRA_MEMTABLE_CLEANUP_THRESHOLD
memtable_allocation_type	CASSANDRA_MEMTABLE_ALLOCATION_TYPE
memtable_flush_writers	CASSANDRA_MEMTABLE_FLUSH_WRITERS
concurrent_compactors	CASSANDRA_CONCURRENT_COMPACTORS
compaction_throughput_mb_per_sec	CASSANDRA_COMPACTION_THROUGHPUT_MB_PER_SEC
counter_cache_size_in_mb	CASSANDRA_COUNTER_CACHE_SIZE_IN_MB
internode_compression	CASSANDRA_INTERNODE_COMPRESSION
endpoint_snitch	CASSANDRA_ENDPOINT_SNITCH	SimpleSnitch
gc_warn_threshold_in_ms	CASSANDRA_GC_WARN_THRESHOLD_IN_MS
listen_interface	CASSANDRA_LISTEN_INTERFACE
rpc_interface	CASSANDRA_RPC_INTERFACE
	CASSANDRA_GC_STDOUT	FALSE