469 lines
19 KiB
Plaintext
469 lines
19 KiB
Plaintext
# Ardb configuration file example, modified from redis's conf file.
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# Home dir for ardb instance, it can be referenced by ${ARDB_HOME} in this config file
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home .
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# Note on units: when memory size is needed, it is possible to specify
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# it in the usual form of 1k 5GB 4M and so forth:
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#
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# 1k => 1000 bytes
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# 1kb => 1024 bytes
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# 1m => 1000000 bytes
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# 1mb => 1024*1024 bytes
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# 1g => 1000000000 bytes
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# 1gb => 1024*1024*1024 bytes
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#
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# units are case insensitive so 1GB 1Gb 1gB are all the same.
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# By default Ardb does not run as a daemon. Use 'yes' if you need it.
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daemonize yes
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# When running daemonized, Ardb writes a pid file in ${ARDB_HOME}/ardb.pid by
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# default. You can specify a custom pid file location here.
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pidfile ${ARDB_HOME}/ardb.pid
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# The thread pool size for the corresponding all listen servers, -1 means current machine's cpu number
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thread-pool-size 4
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#Accept connections on the specified host&port/unix socket, default is 0.0.0.0:16379.
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#server[0].listen 0.0.0.0:16579
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# If current qps exceed the limit, Ardb would return an error.
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#server[0].qps-limit 1000
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#listen on unix socket
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server[0].listen storage.sock
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server[0].unixsocketperm 755
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#server[1].qps-limit 1000
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# 'qps-limit-per-host' used to limit the request per second from same host
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# 'qps-limit-per-connection' used to limit the request per second from same connection
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qps-limit-per-host 0
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qps-limit-per-connection 0
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# Specify the optimized RocksDB compaction strategies.
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# If anything other than none is set then the rocksdb.options will not be used.
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# The property can one of:
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# OptimizeLevelStyleCompaction
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# OptimizeUniversalStyleCompaction
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# none
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#
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rocksdb.compaction OptimizeLevelStyleCompaction
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# Enable this to indicate that hsca/sscan/zscan command use total order mode for rocksdb engine
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rocksdb.scan-total-order false
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# Disable RocksDB WAL may improve the write performance but
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# data in the un-flushed memtables might be lost in case of a RocksDB shutdown.
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# Disabling WAL provides similar guarantees as Redis.
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rocksdb.disableWAL false
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#rocksdb's options
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rocksdb.options write_buffer_size=1024M;max_write_buffer_number=5;min_write_buffer_number_to_merge=3;compression=kSnappyCompression;\
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bloom_locality=1;memtable_prefix_bloom_size_ratio=0.1;\
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block_based_table_factory={block_cache=512M;filter_policy=bloomfilter:10:true};\
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create_if_missing=true;max_open_files=10000;rate_limiter_bytes_per_sec=50M;\
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use_direct_io_for_flush_and_compaction=true;use_adaptive_mutex=true
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#leveldb's options
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leveldb.options block_cache_size=512M,write_buffer_size=128M,max_open_files=5000,block_size=4k,block_restart_interval=16,\
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bloom_bits=10,compression=snappy,logenable=yes,max_file_size=2M
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#lmdb's options
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lmdb.options database_maxsize=10G,database_maxdbs=4096,readahead=no,batch_commit_watermark=1024
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#perconaft's options
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perconaft.options cache_size=128M,compression=snappy
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#wiredtiger's options
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wiredtiger.options cache_size=512M,session_max=8k,chunk_size=100M,block_size=4k,bloom_bits=10,\
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mmap=false,compressor=snappy
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#forestdb's options
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forestdb.options chunksize=8,blocksize=4K
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# Close the connection after a client is idle for N seconds (0 to disable)
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timeout 0
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# TCP keepalive.
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#
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# If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence
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# of communication. This is useful for two reasons:
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#
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# 1) Detect dead peers.
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# 2) Take the connection alive from the point of view of network
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# equipment in the middle.
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#
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# On Linux, the specified value (in seconds) is the period used to send ACKs.
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# Note that to close the connection the double of the time is needed.
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# On other kernels the period depends on the kernel configuration.
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#
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# A reasonable value for this option is 60 seconds.
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tcp-keepalive 0
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# Specify the server verbosity level.
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# This can be one of:
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# error
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# warn
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# info
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# debug
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# trace
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loglevel info
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# Specify the log file name. Also 'stdout' can be used to force
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# Redis to log on the standard output. Note that if you use standard
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# output for logging but daemonize, logs will be sent to /dev/null
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#logfile ${ARDB_HOME}/log/ardb-server.log
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logfile stdout
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# The working data directory.
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#
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# The DB will be written inside this directory, with the filename specified
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# above using the 'dbfilename' configuration directive.
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#
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# The Append Only File will also be created inside this directory.
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#
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# Note that you must specify a directory here, not a file name.
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data-dir ${ARDB_HOME}/data
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################################# REPLICATION #################################
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# Master-Slave replication. Use slaveof to make a Ardb instance a copy of
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# another Ardb server. Note that the configuration is local to the slave
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# so for example it is possible to configure the slave to save the DB with a
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# different interval, or to listen to another port, and so on.
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#
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# slaveof <masterip>:<masterport>
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#slaveof 127.0.0.1:6379
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# By default, ardb use 2 threads to execute commands synced from master.
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# -1 means use current CPU number threads instead.
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slave-workers 2
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# Max synced command queue size in memory.
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max-slave-worker-queue 1024
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# The directory for replication.
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repl-dir ${ARDB_HOME}/repl
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# When a slave loses its connection with the master, or when the replication
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# is still in progress, the slave can act in two different ways:
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#
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# 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will
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# still reply to client requests, possibly with out of date data, or the
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# data set may just be empty if this is the first synchronization.
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#
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# 2) if slave-serve-stale-data is set to 'no' the slave will reply with
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# an error "SYNC with master in progress" to all the kind of commands
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# but to INFO and SLAVEOF.
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#
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slave-serve-stale-data yes
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# The slave priority is an integer number published by Ardb/Redis in the INFO output.
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# It is used by Redis Sentinel in order to select a slave to promote into a
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# master if the master is no longer working correctly.
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#
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# A slave with a low priority number is considered better for promotion, so
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# for instance if there are three slaves with priority 10, 100, 25 Sentinel will
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# pick the one with priority 10, that is the lowest.
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#
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# However a special priority of 0 marks the slave as not able to perform the
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# role of master, so a slave with priority of 0 will never be selected by
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# Redis Sentinel for promotion.
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#
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# By default the priority is 100.
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slave-priority 100
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# You can configure a slave instance to accept writes or not. Writing against
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# a slave instance may be useful to store some ephemeral data (because data
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# written on a slave will be easily deleted after resync with the master) but
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# may also cause problems if clients are writing to it because of a
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# misconfiguration.
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#
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# Note: read only slaves are not designed to be exposed to untrusted clients
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# on the internet. It's just a protection layer against misuse of the instance.
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# Still a read only slave exports by default all the administrative commands
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# such as CONFIG, DEBUG, and so forth. To a limited extent you can improve
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# security of read only slaves using 'rename-command' to shadow all the
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# administrative / dangerous commands.
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#
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# Note: any requests processed by non read only slaves would no write to replication
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# log and sync to connected slaves.
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slave-read-only yes
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# The directory for backup.
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backup-dir ${ARDB_HOME}/backup
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#
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# You can configure the backup file format as 'redis' or 'ardb'. The 'ardb' format
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# can only used by ardb instance, while 'redis' format file can be used by redis
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# and ardb instance.
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backup-file-format ardb
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# Slaves send PINGs to server in a predefined interval. It's possible to change
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# this interval with the repl_ping_slave_period option. The default value is 10
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# seconds.
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#
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# repl-ping-slave-period 10
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# The following option sets a timeout for both Bulk transfer I/O timeout and
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# master data or ping response timeout. The default value is 60 seconds.
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#
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# It is important to make sure that this value is greater than the value
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# specified for repl-ping-slave-period otherwise a timeout will be detected
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# every time there is low traffic between the master and the slave.
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#
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# repl-timeout 60
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# Disable TCP_NODELAY on the slave socket after SYNC?
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#
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# If you select "yes" Ardb will use a smaller number of TCP packets and
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# less bandwidth to send data to slaves. But this can add a delay for
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# the data to appear on the slave side, up to 40 milliseconds with
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# Linux kernels using a default configuration.
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#
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# If you select "no" the delay for data to appear on the slave side will
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# be reduced but more bandwidth will be used for replication.
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#
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# By default we optimize for low latency, but in very high traffic conditions
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# or when the master and slaves are many hops away, turning this to "yes" may
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# be a good idea.
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repl-disable-tcp-nodelay no
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# Set the replication backlog size. The backlog is a buffer that accumulates
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# slave data when slaves are disconnected for some time, so that when a slave
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# wants to reconnect again, often a full resync is not needed, but a partial
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# resync is enough, just passing the portion of data the slave missed while
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# disconnected.
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#
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# The biggest the replication backlog, the longer the time the slave can be
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# disconnected and later be able to perform a partial resynchronization.
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#
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# If the size is configured by 0, then Ardb instance can NOT serve as a master.
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#
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# repl-backlog-size 500m
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repl-backlog-size 1G
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repl-backlog-cache-size 100M
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snapshot-max-lag-offset 500M
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# Set the max number of snapshots. By default this limit is set to 10 snapshot.
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# Once the limit is reached Ardb would try to remove the oldest snapshots
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maxsnapshots 10
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# It is possible for a master to stop accepting writes if there are less than
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# N slaves connected, having a lag less or equal than M seconds.
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#
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# The N slaves need to be in "online" state.
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#
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# The lag in seconds, that must be <= the specified value, is calculated from
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# the last ping received from the slave, that is usually sent every second.
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#
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# This option does not GUARANTEE that N replicas will accept the write, but
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# will limit the window of exposure for lost writes in case not enough slaves
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# are available, to the specified number of seconds.
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#
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# For example to require at least 3 slaves with a lag <= 10 seconds use:
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#
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# min-slaves-to-write 3
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# min-slaves-max-lag 10
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# When a slave loses its connection with the master, or when the replication
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# is still in progress, the slave can act in two different ways:
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#
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# 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will
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# still reply to client requests, possibly with out of date data, or the
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# data set may just be empty if this is the first synchronization.
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#
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# 2) if slave-serve-stale-data is set to 'no' the slave will reply with
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# an error "SYNC with master in progress" to all the kind of commands
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# but to INFO and SLAVEOF.
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#
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slave-serve-stale-data yes
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# After a master has no longer connected slaves for some time, the backlog
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# will be freed. The following option configures the amount of seconds that
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# need to elapse, starting from the time the last slave disconnected, for
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# the backlog buffer to be freed.
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#
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# A value of 0 means to never release the backlog.
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#
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# repl-backlog-ttl 3600
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# Slave clear current data store before full resync to master.
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# It make sure that slave keep consistent with master's data. But slave may cost a
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# long time to delete data, it depends on
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# If set by no, then slave may have different data with master.
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slave-cleardb-before-fullresync yes
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# Master/Slave instance would persist sync state every 'repl-backlog-sync-period' secs.
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repl-backlog-sync-period 5
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# Slave would ignore any 'expire' setting from replication command if set by 'yes'.
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# It could be used if master is redis instance serve hot data with expire setting, slave is
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# ardb instance which persist all data.
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# Since master redis instance would generate a 'del' for each expired key, slave should ignore
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# all 'del' command too by setting 'slave-ignore-del' to 'yes' for this scenario.
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slave-ignore-expire no
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slave-ignore-del no
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# After a master has no longer connected slaves for some time, the backlog
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# will be freed. The following option configures the amount of seconds that
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# need to elapse, starting from the time the last slave disconnected, for
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# the backlog buffer to be freed.
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#
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# A value of 0 means to never release the backlog.
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#
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# repl-backlog-ttl 3600
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################################## SECURITY ###################################
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# Require clients to issue AUTH <PASSWORD> before processing any other
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# commands. This might be useful in environments in which you do not trust
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# others with access to the host running redis-server.
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#
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# This should stay commented out for backward compatibility and because most
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# people do not need auth (e.g. they run their own servers).
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#
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# Warning: since Redis is pretty fast an outside user can try up to
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# 150k passwords per second against a good box. This means that you should
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# use a very strong password otherwise it will be very easy to break.
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#
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# requirepass foobared
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# Command renaming.
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#
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# It is possible to change the name of dangerous commands in a shared
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# environment. For instance the CONFIG command may be renamed into something
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# hard to guess so that it will still be available for internal-use tools
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# but not available for general clients.
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#
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# Example:
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#
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# rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52
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#
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# It is also possible to completely kill a command by renaming it into
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# an empty string:
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#
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# rename-command CONFIG ""
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#
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# Please note that changing the name of commands that are logged into the
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# AOF file or transmitted to slaves may cause problems.
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################################ CLUSTER ###############################
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# Max execution time of a Lua script in milliseconds.
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#zookeeper-servers 127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183
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#zk-recv-timeout 10000
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#zk-clientid-file ${ARDB_HOME}/ardb.zkclientid
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cluster-name ardb-cluster
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################################### LIMITS ####################################
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# Set the max number of connected clients at the same time. By default
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# this limit is set to 10000 clients, however if the Redis server is not
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# able to configure the process file limit to allow for the specified limit
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# the max number of allowed clients is set to the current file limit
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# minus 32 (as Redis reserves a few file descriptors for internal uses).
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#
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# Once the limit is reached Redis will close all the new connections sending
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# an error 'max number of clients reached'.
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#
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# maxclients 10000
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# The client output buffer limits can be used to force disconnection of clients
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# that are not reading data from the server fast enough for some reason (a
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# common reason is that a Pub/Sub/Slave client can't consume messages as fast as the
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# publisher can produce them).
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slave-client-output-buffer-limit 256mb
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pubsub-client-output-buffer-limit 32mb
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################################## SLOW LOG ###################################
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# The Redis Slow Log is a system to log queries that exceeded a specified
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# execution time. The execution time does not include the I/O operations
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# like talking with the client, sending the reply and so forth,
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# but just the time needed to actually execute the command (this is the only
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# stage of command execution where the thread is blocked and can not serve
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# other requests in the meantime).
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#
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# You can configure the slow log with two parameters: one tells Redis
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# what is the execution time, in microseconds, to exceed in order for the
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# command to get logged, and the other parameter is the length of the
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# slow log. When a new command is logged the oldest one is removed from the
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# queue of logged commands.
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# The following time is expressed in microseconds, so 1000000 is equivalent
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# to one second. Note that a negative number disables the slow log, while
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# a value of zero forces the logging of every command.
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slowlog-log-slower-than 10000
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# There is no limit to this length. Just be aware that it will consume memory.
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# You can reclaim memory used by the slow log with SLOWLOG RESET.
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slowlog-max-len 128
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################################ LUA SCRIPTING ###############################
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# Max execution time of a Lua script in milliseconds.
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#
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# If the maximum execution time is reached Redis will log that a script is
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# still in execution after the maximum allowed time and will start to
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# reply to queries with an error.
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#
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# When a long running script exceed the maximum execution time only the
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# SCRIPT KILL and SHUTDOWN NOSAVE commands are available. The first can be
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# used to stop a script that did not yet called write commands. The second
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# is the only way to shut down the server in the case a write commands was
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# already issue by the script but the user don't want to wait for the natural
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# termination of the script.
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#
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# Set it to 0 or a negative value for unlimited execution without warnings.
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lua-time-limit 5000
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############################### ADVANCED CONFIG ###############################
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## Since some redis clients would check info command's output, this configuration
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## would be set in 'misc' section of 'info's output
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#additional-misc-info redis_version:2.8.9\nredis_trick:yes
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# HyperLogLog sparse representation bytes limit. The limit includes the
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# 16 bytes header. When an HyperLogLog using the sparse representation crosses
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# this limit, it is convereted into the dense representation.
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#
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# A value greater than 16000 is totally useless, since at that point the
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# dense representation is more memory efficient.
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#
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# The suggested value is ~ 3000 in order to have the benefits of
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# the space efficient encoding without slowing down too much PFADD,
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# which is O(N) with the sparse encoding. Thev value can be raised to
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# ~ 10000 when CPU is not a concern, but space is, and the data set is
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# composed of many HyperLogLogs with cardinality in the 0 - 15000 range.
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hll-sparse-max-bytes 3000
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#trusted-ip 10.10.10.10
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#trusted-ip 10.10.10.*
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# By default Ardb would not compact whole db after loading a snapshot, which may happens
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# when slave syncing from master, processing 'import' command from client.
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# This configuration only works with rocksdb engine.
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# If ardb dord not compact data after loading snapshot file, there would be poor read performance before rocksdb
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# completes the next compaction task internally. While the compaction task would cost very long time for a huge data set.
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compact-after-snapshot-load false
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# Ardb would store cursor in memory
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scan-redis-compatible yes
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scan-cursor-expire-after 60
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redis-compatible-mode yes
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redis-compatible-version 2.8.0
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statistics-log-period 600
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# Range deletion min size trigger
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range-delete-min-size 100
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