配置信息如下，metadns均能ping通，为对应的meta ip
graph:
启动命令：
/opt/app/nebula/bin/nebula-graphd --flagfile=/opt/app/nebula/etc/nebula-graphd.conf --meta_server_addrs=metadns0:9559,metadns1:9559, metadns2:9559 --local_ip=x.x.x.x --num_netio_threads=2 --num_worker_threads=2
########## basics ##########
# Whether to run as a daemon process
--daemonize=false
# The file to host the process id
--pid_file=/opt/app/nebula/pids/nebula-graphd.pid
# Whether to enable optimizer
--enable_optimizer=true
# Heartbeat interval of communication between meta client and graphd service
--heartbeat_interval_secs=10
# Whether to use the configuration obtained from the configuration file
--local_config=true
########## logging ##########
# The directory to host logging files
--log_dir=/opt/logs
# Log level, 0, 1, 2, 3 for INFO, WARNING, ERROR, FATAL respectively
--minloglevel=1
# Verbose log level, 1, 2, 3, 4, the higher of the level, the more verbose of the logging
--v=3
# Maximum seconds to buffer the log messages
--logbufsecs=0
# Whether to redirect stdout and stderr to separate output files
--redirect_stdout=false
# Destination filename of stdout and stderr, which will also reside in log_dir.
--stdout_log_file=graphd-stdout.log
--stderr_log_file=graphd-stderr.log
# Copy log messages at or above this level to stderr in addition to logfiles. The numbers of severity levels INFO, WARNING, ERROR, and FATAL are 0, 1, 2, and 3, respectively.
--stderrthreshold=2
########## query ##########
# Whether to treat partial success as an error.
# This flag is only used for Read-only access, and Modify access always treats partial success as an error.
--accept_partial_success=false
# Maximum sentence length, unit byte
--max_allowed_query_size=4194304
--max_sessions_per_ip_per_user=2000
########## networking ##########
# Comma separated Meta Server Addresses
--meta_server_addrs=meta_server_addrs
# Local IP used to identify the nebula-graphd process.
# Change it to an address other than loopback if the service is distributed or
# will be accessed remotely.
--local_ip=local_ip
# Network device to listen on
--listen_netdev=any
# Port to listen on
--port=9669
# To turn on SO_REUSEPORT or not
--reuse_port=false
# Backlog of the listen socket, adjust this together with net.core.somaxconn
--listen_backlog=1024
# Seconds before the idle connections are closed, 0 for never closed
--client_idle_timeout_secs=172800
# Seconds before the idle sessions are expired, 0 for no expiration
--session_idle_timeout_secs=86400
# The number of threads to accept incoming connections
--num_accept_threads=1
# The number of networking IO threads, 0 for # of CPU cores
--num_netio_threads=0
# The number of threads to execute user queries, 0 for # of CPU cores
--num_worker_threads=0
# HTTP service ip
--ws_ip=0.0.0.0
# HTTP service port
--ws_http_port=19669
# HTTP2 service port
--ws_h2_port=19670
# storage client timeout
--storage_client_timeout_ms=60000
# Port to listen on Meta with HTTP protocol, it corresponds to ws_http_port in metad's configuration file
--ws_meta_http_port=19559
########## authentication ##########
# Enable authorization
--enable_authorize=true
# User login authentication type, password for nebula authentication, ldap for ldap authentication, cloud for cloud authentication
--auth_type=password
########## memory ##########
# System memory high watermark ratio
# --system_memory_high_watermark_ratio=0.8
########## experimental feature ##########
# if use experimental features
--enable_experimental_feature=true
meta:
启动命令:
/opt/app/nebula/bin/nebula-metad --flagfile=/opt/app/nebula/etc/nebula-metad.conf --meta_server_addrs=metadns0:9559,metadns1:9559,metadns2:9559 --local_ip=metadnsX --num_worker_threads=1
########## basics ##########
# Whether to run as a daemon process
--daemonize=false
# The file to host the process id
--pid_file=/opt/app/nebula/pids/nebula-metad.pid
# Whether to use the configuration obtained from the configuration file
--local_config=true
########## logging ##########
# The directory to host logging files
--log_dir=/opt/logs
# Log level, 0, 1, 2, 3 for INFO, WARNING, ERROR, FATAL respectively
--minloglevel=1
# Verbose log level, 1, 2, 3, 4, the higher of the level, the more verbose of the logging
--v=3
# Maximum seconds to buffer the log messages
--logbufsecs=0
# Whether to redirect stdout and stderr to separate output files
--redirect_stdout=false
# Destination filename of stdout and stderr, which will also reside in log_dir.
--stdout_log_file=metad-stdout.log
--stderr_log_file=metad-stderr.log
# Copy log messages at or above this level to stderr in addition to logfiles. The numbers of severity levels INFO, WARNING, ERROR, and FATAL are 0, 1, 2, and 3, respectively.
--stderrthreshold=2
########## networking ##########
# Comma separated Meta Server addresses
--meta_server_addrs=meta_server_addrs
# Local IP used to identify the nebula-metad process.
# Change it to an address other than loopback if the service is distributed or
# will be accessed remotely.
--local_ip=local_ip
# Meta daemon listening port
--port=9559
# HTTP service ip
--ws_ip=0.0.0.0
# HTTP service port
--ws_http_port=19559
# HTTP2 service port
--ws_h2_port=19560
# Port to listen on Storage with HTTP protocol, it corresponds to ws_http_port in storage's configuration file
--ws_storage_http_port=19779
########## storage ##########
# Root data path, here should be only single path for metad
--data_path=/data/meta
########## Misc #########
# The default number of parts when a space is created
--default_parts_num=100
# The default replica factor when a space is created
--default_replica_factor=1
--heartbeat_interval_secs=10
## recycle Raft WAL
--wal_ttl=3600
############## rocksdb Options ##############
--rocksdb_wal_sync=true
storage:
启动命令：
/opt/app/nebula/bin/nebula-storaged --flagfile=/opt/app/nebula/etc/nebula-storaged.conf --meta_server_addrs=metadns0:9559,metadns1:9559,metadns2:9559 --local_ip=x.x.x.x --num_worker_threads=1
########## basics ##########
# Whether to run as a daemon process
--daemonize=false
# The file to host the process id
--pid_file=/opt/app/nebula/pids/nebula-storaged.pid
# Whether to use the configuration obtained from the configuration file
--local_config=true
########## logging ##########
# The directory to host logging files
--log_dir=/opt/logs
# Log level, 0, 1, 2, 3 for INFO, WARNING, ERROR, FATAL respectively
--minloglevel=1
# Verbose log level, 1, 2, 3, 4, the higher of the level, the more verbose of the logging
--v=3
# Maximum seconds to buffer the log messages
--logbufsecs=0
# Whether to redirect stdout and stderr to separate output files
--redirect_stdout=false
# Destination filename of stdout and stderr, which will also reside in log_dir.
--stdout_log_file=storaged-stdout.log
--stderr_log_file=storaged-stderr.log
# Copy log messages at or above this level to stderr in addition to logfiles. The numbers of severity levels INFO, WARNING, ERROR, and FATAL are 0, 1, 2, and 3, respectively.
--stderrthreshold=2
########## networking ##########
# Comma separated Meta server addresses
--meta_server_addrs=meta_server_addrs
# Local IP used to identify the nebula-storaged process.
# Change it to an address other than loopback if the service is distributed or
# will be accessed remotely.
--local_ip=local_ip
# Storage daemon listening port
--port=9779
# HTTP service ip
--ws_ip=0.0.0.0
# HTTP service port
--ws_http_port=19779
# HTTP2 service port
--ws_h2_port=19780
# heartbeat with meta service
--heartbeat_interval_secs=10
######### Raft #########
# Raft election timeout
--raft_heartbeat_interval_secs=30
# RPC timeout for raft client (ms)
--raft_rpc_timeout_ms=500
## recycle Raft WAL
--wal_ttl=3600
########## Disk ##########
# Root data path. split by comma. e.g. --data_path=/disk1/path1/,/disk2/path2/
# One path per Rocksdb instance.
--data_path=/data/storage
# Minimum reserved bytes of each data path
--minimum_reserved_bytes=268435456
# The default reserved bytes for one batch operation
--rocksdb_batch_size=4096
# The default block cache size used in BlockBasedTable. (MB)
# recommend: 1/3 of all memory
--rocksdb_block_cache=512
# Compression algorithm, options: no,snappy,lz4,lz4hc,zlib,bzip2,zstd
# For the sake of binary compatibility, the default value is snappy.
# Recommend to use:
# * lz4 to gain more CPU performance, with the same compression ratio with snappy
# * zstd to occupy less disk space
# * lz4hc for the read-heavy write-light scenario
--rocksdb_compression=lz4
# Set different compressions for different levels
# For example, if --rocksdb_compression is snappy,
# "no:no:lz4:lz4::zstd" is identical to "no:no:lz4:lz4:snappy:zstd:snappy"
# In order to disable compression for level 0/1, set it to "no:no"
--rocksdb_compression_per_level=
############## rocksdb Options ##############
# rocksdb DBOptions in json, each name and value of option is a string, given as "option_name":"option_value" separated by comma
--rocksdb_db_options={"max_subcompactions":"4","max_background_jobs":"4","max_open_files":"512","max_background_compactions":"4"}
# rocksdb ColumnFamilyOptions in json, each name and value of option is string, given as "option_name":"option_value" separated by comma
--rocksdb_column_family_options={"disable_auto_compactions":"false","write_buffer_size":"67108864","max_write_buffer_number":"4","max_bytes_for_level_base":"268435456"}
# rocksdb BlockBasedTableOptions in json, each name and value of option is string, given as "option_name":"option_value" separated by comma
--rocksdb_block_based_table_options={"block_size":"8192"}
# Whether or not to enable rocksdb's statistics, disabled by default
--enable_rocksdb_statistics=false
# Statslevel used by rocksdb to collection statistics, optional values are
# * kExceptHistogramOrTimers, disable timer stats, and skip histogram stats
# * kExceptTimers, Skip timer stats
# * kExceptDetailedTimers, Collect all stats except time inside mutex lock AND time spent on compression.
# * kExceptTimeForMutex, Collect all stats except the counters requiring to get time inside the mutex lock.
# * kAll, Collect all stats
--rocksdb_stats_level=kExceptHistogramOrTimers
# Whether or not to enable rocksdb's prefix bloom filter, enabled by default.
--enable_rocksdb_prefix_filtering=true
# Whether or not to enable rocksdb's whole key bloom filter, disabled by default.
--enable_rocksdb_whole_key_filtering=true
############## Key-Value separation ##############
# Whether or not to enable BlobDB (RocksDB key-value separation support)
--rocksdb_enable_kv_separation=false
# RocksDB key value separation threshold. Values at or above this threshold will be written to blob files during flush or compaction.
--rocksdb_kv_separation_threshold=0
# Compression algorithm for blobs, options: no,snappy,lz4,lz4hc,zlib,bzip2,zstd
--rocksdb_blob_compression=lz4
# Whether to garbage collect blobs during compaction
--rocksdb_enable_blob_garbage_collection=true
############### misc ####################
--snapshot_part_rate_limit=10485760
--snapshot_batch_size=1048576
--rebuild_index_part_rate_limit=4194304
--rebuild_index_batch_size=1048576```
setMinConnSize 可以不用设置 80 啊，最小连接数设置成 1 就好了。
可以开个帖子看看啊。