mirror of
https://github.com/GreptimeTeam/greptimedb.git
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39b69f1e3b
* refactor: rename mod merge_tree to partition_tree * refactor: rename merge_tree * refactor: change merge tree comment * refactor: rename merge tree struct * refactor: memtable options
172 lines
6.0 KiB
TOML
172 lines
6.0 KiB
TOML
# Node running mode, see `standalone.example.toml`.
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mode = "distributed"
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# The datanode identifier, should be unique.
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node_id = 42
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# gRPC server address, "127.0.0.1:3001" by default.
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rpc_addr = "127.0.0.1:3001"
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# Hostname of this node.
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rpc_hostname = "127.0.0.1"
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# The number of gRPC server worker threads, 8 by default.
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rpc_runtime_size = 8
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# Start services after regions have obtained leases.
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# It will block the datanode start if it can't receive leases in the heartbeat from metasrv.
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require_lease_before_startup = false
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# Initialize all regions in the background during the startup.
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# By default, it provides services after all regions have been initialized.
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init_regions_in_background = false
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[heartbeat]
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# Interval for sending heartbeat messages to the Metasrv, 3 seconds by default.
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interval = "3s"
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# Metasrv client options.
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[meta_client]
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# Metasrv address list.
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metasrv_addrs = ["127.0.0.1:3002"]
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# Heartbeat timeout, 500 milliseconds by default.
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heartbeat_timeout = "500ms"
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# Operation timeout, 3 seconds by default.
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timeout = "3s"
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# Connect server timeout, 1 second by default.
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connect_timeout = "1s"
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# `TCP_NODELAY` option for accepted connections, true by default.
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tcp_nodelay = true
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# WAL options.
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[wal]
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provider = "raft_engine"
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# Raft-engine wal options, see `standalone.example.toml`.
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# dir = "/tmp/greptimedb/wal"
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file_size = "256MB"
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purge_threshold = "4GB"
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purge_interval = "10m"
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read_batch_size = 128
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sync_write = false
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# Kafka wal options, see `standalone.example.toml`.
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# broker_endpoints = ["127.0.0.1:9092"]
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# Warning: Kafka has a default limit of 1MB per message in a topic.
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# max_batch_size = "1MB"
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# linger = "200ms"
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# consumer_wait_timeout = "100ms"
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# backoff_init = "500ms"
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# backoff_max = "10s"
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# backoff_base = 2
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# backoff_deadline = "5mins"
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# Storage options, see `standalone.example.toml`.
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[storage]
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# The working home directory.
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data_home = "/tmp/greptimedb/"
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# Storage type.
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type = "File"
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# TTL for all tables. Disabled by default.
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# global_ttl = "7d"
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# Cache configuration for object storage such as 'S3' etc.
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# The local file cache directory
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# cache_path = "/path/local_cache"
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# The local file cache capacity in bytes.
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# cache_capacity = "256MB"
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# Custom storage options
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#[[storage.providers]]
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#type = "S3"
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#[[storage.providers]]
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#type = "Gcs"
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# Mito engine options
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[[region_engine]]
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[region_engine.mito]
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# Number of region workers
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num_workers = 8
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# Request channel size of each worker
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worker_channel_size = 128
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# Max batch size for a worker to handle requests
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worker_request_batch_size = 64
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# Number of meta action updated to trigger a new checkpoint for the manifest
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manifest_checkpoint_distance = 10
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# Whether to compress manifest and checkpoint file by gzip (default false).
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compress_manifest = false
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# Max number of running background jobs
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max_background_jobs = 4
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# Interval to auto flush a region if it has not flushed yet.
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auto_flush_interval = "1h"
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# Global write buffer size for all regions. If not set, it's default to 1/8 of OS memory with a max limitation of 1GB.
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global_write_buffer_size = "1GB"
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# Global write buffer size threshold to reject write requests. If not set, it's default to 2 times of `global_write_buffer_size`
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global_write_buffer_reject_size = "2GB"
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# Cache size for SST metadata. Setting it to 0 to disable the cache.
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# If not set, it's default to 1/32 of OS memory with a max limitation of 128MB.
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sst_meta_cache_size = "128MB"
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# Cache size for vectors and arrow arrays. Setting it to 0 to disable the cache.
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# If not set, it's default to 1/16 of OS memory with a max limitation of 512MB.
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vector_cache_size = "512MB"
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# Cache size for pages of SST row groups. Setting it to 0 to disable the cache.
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# If not set, it's default to 1/16 of OS memory with a max limitation of 512MB.
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page_cache_size = "512MB"
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# Buffer size for SST writing.
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sst_write_buffer_size = "8MB"
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# Parallelism to scan a region (default: 1/4 of cpu cores).
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# - 0: using the default value (1/4 of cpu cores).
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# - 1: scan in current thread.
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# - n: scan in parallelism n.
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scan_parallelism = 0
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# Capacity of the channel to send data from parallel scan tasks to the main task (default 32).
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parallel_scan_channel_size = 32
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# Whether to allow stale WAL entries read during replay.
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allow_stale_entries = false
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[region_engine.mito.inverted_index]
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# Whether to create the index on flush.
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# - "auto": automatically
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# - "disable": never
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create_on_flush = "auto"
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# Whether to create the index on compaction.
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# - "auto": automatically
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# - "disable": never
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create_on_compaction = "auto"
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# Whether to apply the index on query
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# - "auto": automatically
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# - "disable": never
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apply_on_query = "auto"
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# Memory threshold for performing an external sort during index creation.
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# Setting to empty will disable external sorting, forcing all sorting operations to happen in memory.
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mem_threshold_on_create = "64M"
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# File system path to store intermediate files for external sorting (default `{data_home}/index_intermediate`).
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intermediate_path = ""
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[region_engine.mito.memtable]
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# Memtable type.
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# - "partition_tree": partition tree memtable
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# - "time_series": time-series memtable (deprecated)
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type = "partition_tree"
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# The max number of keys in one shard.
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index_max_keys_per_shard = 8192
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# The max rows of data inside the actively writing buffer in one shard.
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data_freeze_threshold = 32768
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# Max dictionary bytes.
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fork_dictionary_bytes = "1GiB"
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# Log options, see `standalone.example.toml`
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# [logging]
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# dir = "/tmp/greptimedb/logs"
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# level = "info"
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# Datanode export the metrics generated by itself
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# encoded to Prometheus remote-write format
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# and send to Prometheus remote-write compatible receiver (e.g. send to `greptimedb` itself)
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# This is only used for `greptimedb` to export its own metrics internally. It's different from prometheus scrape.
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# [export_metrics]
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# whether enable export metrics, default is false
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# enable = false
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# The interval of export metrics
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# write_interval = "30s"
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# [export_metrics.remote_write]
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# The url the metrics send to. The url is empty by default, url example: `http://127.0.0.1:4000/v1/prometheus/write?db=information_schema`
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# url = ""
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# HTTP headers of Prometheus remote-write carry
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# headers = {}
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