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@ -1,4 +1,7 @@
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# Redis configuration file example
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# 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 ../DATA_ARDB/
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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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@ -12,63 +15,71 @@
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#
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# units are case insensitive so 1GB 1Gb 1gB are all the same.
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################################## INCLUDES ###################################
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# Include one or more other config files here. This is useful if you
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# have a standard template that goes to all Redis server but also need
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# to customize a few per-server settings. Include files can include
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# other files, so use this wisely.
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#
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# Notice option "include" won't be rewritten by command "CONFIG REWRITE"
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# from admin or Redis Sentinel. Since Redis always uses the last processed
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# line as value of a configuration directive, you'd better put includes
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# at the beginning of this file to avoid overwriting config change at runtime.
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#
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# If instead you are interested in using includes to override configuration
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# options, it is better to use include as the last line.
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#
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# include /path/to/local.conf
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# include /path/to/other.conf
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################################ GENERAL #####################################
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# By default Redis does not run as a daemon. Use 'yes' if you need it.
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# Note that Redis will write a pid file in /var/run/redis.pid when daemonized.
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# By default Ardb does not run as a daemon. Use 'yes' if you need it.
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daemonize no
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# When running daemonized, Redis writes a pid file in /var/run/redis.pid by
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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 /var/run/redis.pid
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pidfile ${ARDB_HOME}/ardb.pid
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# Accept connections on the specified port, default is 6379.
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# If port 0 is specified Redis will not listen on a TCP socket.
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port 6382
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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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# TCP listen() backlog.
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#
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# In high requests-per-second environments you need an high backlog in order
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# to avoid slow clients connections issues. Note that the Linux kernel
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# will silently truncate it to the value of /proc/sys/net/core/somaxconn so
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# make sure to raise both the value of somaxconn and tcp_max_syn_backlog
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# in order to get the desired effect.
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tcp-backlog 511
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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 127.0.0.1:6382
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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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# By default Redis listens for connections from all the network interfaces
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# available on the server. It is possible to listen to just one or multiple
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# interfaces using the "bind" configuration directive, followed by one or
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# more IP addresses.
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#
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# Examples:
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#
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# bind 192.168.1.100 10.0.0.1
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# bind 127.0.0.1
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#listen on unix socket
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#server[1].listen /tmp/ardb.sock
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#server[1].unixsocketperm 755
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#server[1].qps-limit 1000
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# Specify the path for the Unix socket that will be used to listen for
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# incoming connections. There is no default, so Redis will not listen
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# on a unix socket when not specified.
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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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#unixsocket /tmp/redis.sock
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#unixsocketperm 755
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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=512M;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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@ -91,115 +102,51 @@ 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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# debug (a lot of information, useful for development/testing)
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# verbose (many rarely useful info, but not a mess like the debug level)
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# notice (moderately verbose, what you want in production probably)
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# warning (only very important / critical messages are logged)
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loglevel notice
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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 the empty string can be used to force
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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 ""
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#logfile ${ARDB_HOME}/log/ardb-server.log
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logfile stdout
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# To enable logging to the system logger, just set 'syslog-enabled' to yes,
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# and optionally update the other syslog parameters to suit your needs.
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# syslog-enabled no
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# Specify the syslog identity.
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# syslog-ident redis
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# Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7.
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# syslog-facility local0
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# Set the number of databases. The default database is DB 0, you can select
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# a different one on a per-connection basis using SELECT <dbid> where
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# dbid is a number between 0 and 'databases'-1
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databases 16
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################################ SNAPSHOTTING ################################
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#
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# Save the DB on disk:
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#
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# save <seconds> <changes>
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#
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# Will save the DB if both the given number of seconds and the given
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# number of write operations against the DB occurred.
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#
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# In the example below the behaviour will be to save:
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# after 900 sec (15 min) if at least 1 key changed
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# after 300 sec (5 min) if at least 10 keys changed
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# after 60 sec if at least 10000 keys changed
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#
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# Note: you can disable saving at all commenting all the "save" lines.
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#
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# It is also possible to remove all the previously configured save
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# points by adding a save directive with a single empty string argument
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# like in the following example:
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#
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# save ""
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#save 900 1
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#save 300 10
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save 300 100000
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# By default Redis will stop accepting writes if RDB snapshots are enabled
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# (at least one save point) and the latest background save failed.
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# This will make the user aware (in a hard way) that data is not persisting
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# on disk properly, otherwise chances are that no one will notice and some
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# disaster will happen.
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#
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# If the background saving process will start working again Redis will
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# automatically allow writes again.
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#
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# However if you have setup your proper monitoring of the Redis server
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# and persistence, you may want to disable this feature so that Redis will
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# continue to work as usual even if there are problems with disk,
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# permissions, and so forth.
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stop-writes-on-bgsave-error yes
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# Compress string objects using LZF when dump .rdb databases?
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# For default that's set to 'yes' as it's almost always a win.
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# If you want to save some CPU in the saving child set it to 'no' but
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# the dataset will likely be bigger if you have compressible values or keys.
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rdbcompression yes
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# Since version 5 of RDB a CRC64 checksum is placed at the end of the file.
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# This makes the format more resistant to corruption but there is a performance
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# hit to pay (around 10%) when saving and loading RDB files, so you can disable it
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# for maximum performances.
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#
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# RDB files created with checksum disabled have a checksum of zero that will
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# tell the loading code to skip the check.
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rdbchecksum yes
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# The filename where to dump the DB
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dbfilename dump6382.rdb
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# The working directory.
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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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#
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# The Append Only File will also be created inside this directory.
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#
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#
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# Note that you must specify a directory here, not a file name.
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dir ../dumps/
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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 Redis instance a copy of
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# another Redis server. Note that the configuration is local to the slave
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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 <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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# If the master is password protected (using the "requirepass" configuration
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# directive below) it is possible to tell the slave to authenticate before
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# starting the replication synchronization process, otherwise the master will
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# refuse the slave request.
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#
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# masterauth <master-password>
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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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@ -214,33 +161,55 @@ dir ../dumps/
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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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# Since Redis 2.6 by default slaves are read-only.
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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.
|
|
|
|
|
#
|
|
|
|
|
# Note: any requests processed by non read only slaves would no write to replication
|
|
|
|
|
# log and sync to connected slaves.
|
|
|
|
|
slave-read-only yes
|
|
|
|
|
|
|
|
|
|
# The directory for backup.
|
|
|
|
|
backup-dir ${ARDB_HOME}/backup
|
|
|
|
|
#
|
|
|
|
|
# You can configure the backup file format as 'redis' or 'ardb'. The 'ardb' format
|
|
|
|
|
# can only used by ardb instance, while 'redis' format file can be used by redis
|
|
|
|
|
# and ardb instance.
|
|
|
|
|
backup-file-format ardb
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# Slaves send PINGs to server in a predefined interval. It's possible to change
|
|
|
|
|
# this interval with the repl_ping_slave_period option. The default value is 10
|
|
|
|
|
# seconds.
|
|
|
|
|
#
|
|
|
|
|
# repl-ping-slave-period 10
|
|
|
|
|
|
|
|
|
|
# The following option sets the replication timeout for:
|
|
|
|
|
#
|
|
|
|
|
# 1) Bulk transfer I/O during SYNC, from the point of view of slave.
|
|
|
|
|
# 2) Master timeout from the point of view of slaves (data, pings).
|
|
|
|
|
# 3) Slave timeout from the point of view of masters (REPLCONF ACK pings).
|
|
|
|
|
# The following option sets a timeout for both Bulk transfer I/O timeout and
|
|
|
|
|
# master data or ping response timeout. The default value is 60 seconds.
|
|
|
|
|
#
|
|
|
|
|
# It is important to make sure that this value is greater than the value
|
|
|
|
|
# specified for repl-ping-slave-period otherwise a timeout will be detected
|
|
|
|
|
@ -250,7 +219,7 @@ slave-read-only yes
|
|
|
|
|
|
|
|
|
|
# Disable TCP_NODELAY on the slave socket after SYNC?
|
|
|
|
|
#
|
|
|
|
|
# If you select "yes" Redis will use a smaller number of TCP packets and
|
|
|
|
|
# If you select "yes" Ardb will use a smaller number of TCP packets and
|
|
|
|
|
# less bandwidth to send data to slaves. But this can add a delay for
|
|
|
|
|
# the data to appear on the slave side, up to 40 milliseconds with
|
|
|
|
|
# Linux kernels using a default configuration.
|
|
|
|
|
@ -272,9 +241,46 @@ repl-disable-tcp-nodelay no
|
|
|
|
|
# The biggest the replication backlog, the longer the time the slave can be
|
|
|
|
|
# disconnected and later be able to perform a partial resynchronization.
|
|
|
|
|
#
|
|
|
|
|
# The backlog is only allocated once there is at least a slave connected.
|
|
|
|
|
# If the size is configured by 0, then Ardb instance can NOT serve as a master.
|
|
|
|
|
#
|
|
|
|
|
# repl-backlog-size 1mb
|
|
|
|
|
# repl-backlog-size 500m
|
|
|
|
|
repl-backlog-size 1G
|
|
|
|
|
repl-backlog-cache-size 100M
|
|
|
|
|
snapshot-max-lag-offset 500M
|
|
|
|
|
|
|
|
|
|
# Set the max number of snapshots. By default this limit is set to 10 snapshot.
|
|
|
|
|
# Once the limit is reached Ardb would try to remove the oldest snapshots
|
|
|
|
|
maxsnapshots 10
|
|
|
|
|
|
|
|
|
|
# It is possible for a master to stop accepting writes if there are less than
|
|
|
|
|
# N slaves connected, having a lag less or equal than M seconds.
|
|
|
|
|
#
|
|
|
|
|
# The N slaves need to be in "online" state.
|
|
|
|
|
#
|
|
|
|
|
# The lag in seconds, that must be <= the specified value, is calculated from
|
|
|
|
|
# the last ping received from the slave, that is usually sent every second.
|
|
|
|
|
#
|
|
|
|
|
# This option does not GUARANTEE that N replicas will accept the write, but
|
|
|
|
|
# will limit the window of exposure for lost writes in case not enough slaves
|
|
|
|
|
# are available, to the specified number of seconds.
|
|
|
|
|
#
|
|
|
|
|
# For example to require at least 3 slaves with a lag <= 10 seconds use:
|
|
|
|
|
#
|
|
|
|
|
# min-slaves-to-write 3
|
|
|
|
|
# min-slaves-max-lag 10
|
|
|
|
|
|
|
|
|
|
# When a slave loses its connection with the master, or when the replication
|
|
|
|
|
# is still in progress, the slave can act in two different ways:
|
|
|
|
|
#
|
|
|
|
|
# 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will
|
|
|
|
|
# still reply to client requests, possibly with out of date data, or the
|
|
|
|
|
# data set may just be empty if this is the first synchronization.
|
|
|
|
|
#
|
|
|
|
|
# 2) if slave-serve-stale-data is set to 'no' the slave will reply with
|
|
|
|
|
# an error "SYNC with master in progress" to all the kind of commands
|
|
|
|
|
# but to INFO and SLAVEOF.
|
|
|
|
|
#
|
|
|
|
|
slave-serve-stale-data yes
|
|
|
|
|
|
|
|
|
|
# After a master has no longer connected slaves for some time, the backlog
|
|
|
|
|
# will be freed. The following option configures the amount of seconds that
|
|
|
|
|
@ -285,42 +291,32 @@ repl-disable-tcp-nodelay no
|
|
|
|
|
#
|
|
|
|
|
# repl-backlog-ttl 3600
|
|
|
|
|
|
|
|
|
|
# The slave priority is an integer number published by Redis in the INFO output.
|
|
|
|
|
# It is used by Redis Sentinel in order to select a slave to promote into a
|
|
|
|
|
# master if the master is no longer working correctly.
|
|
|
|
|
#
|
|
|
|
|
# A slave with a low priority number is considered better for promotion, so
|
|
|
|
|
# for instance if there are three slaves with priority 10, 100, 25 Sentinel will
|
|
|
|
|
# pick the one with priority 10, that is the lowest.
|
|
|
|
|
#
|
|
|
|
|
# However a special priority of 0 marks the slave as not able to perform the
|
|
|
|
|
# role of master, so a slave with priority of 0 will never be selected by
|
|
|
|
|
# Redis Sentinel for promotion.
|
|
|
|
|
#
|
|
|
|
|
# By default the priority is 100.
|
|
|
|
|
slave-priority 100
|
|
|
|
|
# Slave clear current data store before full resync to master.
|
|
|
|
|
# It make sure that slave keep consistent with master's data. But slave may cost a
|
|
|
|
|
# long time to delete data, it depends on
|
|
|
|
|
# If set by no, then slave may have different data with master.
|
|
|
|
|
slave-cleardb-before-fullresync yes
|
|
|
|
|
|
|
|
|
|
# It is possible for a master to stop accepting writes if there are less than
|
|
|
|
|
# N slaves connected, having a lag less or equal than M seconds.
|
|
|
|
|
# Master/Slave instance would persist sync state every 'repl-backlog-sync-period' secs.
|
|
|
|
|
repl-backlog-sync-period 5
|
|
|
|
|
|
|
|
|
|
# Slave would ignore any 'expire' setting from replication command if set by 'yes'.
|
|
|
|
|
# It could be used if master is redis instance serve hot data with expire setting, slave is
|
|
|
|
|
# ardb instance which persist all data.
|
|
|
|
|
# Since master redis instance would generate a 'del' for each expired key, slave should ignore
|
|
|
|
|
# all 'del' command too by setting 'slave-ignore-del' to 'yes' for this scenario.
|
|
|
|
|
slave-ignore-expire no
|
|
|
|
|
slave-ignore-del no
|
|
|
|
|
|
|
|
|
|
# After a master has no longer connected slaves for some time, the backlog
|
|
|
|
|
# will be freed. The following option configures the amount of seconds that
|
|
|
|
|
# need to elapse, starting from the time the last slave disconnected, for
|
|
|
|
|
# the backlog buffer to be freed.
|
|
|
|
|
#
|
|
|
|
|
# The N slaves need to be in "online" state.
|
|
|
|
|
# A value of 0 means to never release the backlog.
|
|
|
|
|
#
|
|
|
|
|
# The lag in seconds, that must be <= the specified value, is calculated from
|
|
|
|
|
# the last ping received from the slave, that is usually sent every second.
|
|
|
|
|
#
|
|
|
|
|
# This option does not GUARANTEES that N replicas will accept the write, but
|
|
|
|
|
# will limit the window of exposure for lost writes in case not enough slaves
|
|
|
|
|
# are available, to the specified number of seconds.
|
|
|
|
|
#
|
|
|
|
|
# For example to require at least 3 slaves with a lag <= 10 seconds use:
|
|
|
|
|
#
|
|
|
|
|
# min-slaves-to-write 3
|
|
|
|
|
# min-slaves-max-lag 10
|
|
|
|
|
#
|
|
|
|
|
# Setting one or the other to 0 disables the feature.
|
|
|
|
|
#
|
|
|
|
|
# By default min-slaves-to-write is set to 0 (feature disabled) and
|
|
|
|
|
# min-slaves-max-lag is set to 10.
|
|
|
|
|
# repl-backlog-ttl 3600
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
################################## SECURITY ###################################
|
|
|
|
|
|
|
|
|
|
@ -330,7 +326,7 @@ slave-priority 100
|
|
|
|
|
#
|
|
|
|
|
# This should stay commented out for backward compatibility and because most
|
|
|
|
|
# people do not need auth (e.g. they run their own servers).
|
|
|
|
|
#
|
|
|
|
|
#
|
|
|
|
|
# Warning: since Redis is pretty fast an outside user can try up to
|
|
|
|
|
# 150k passwords per second against a good box. This means that you should
|
|
|
|
|
# use a very strong password otherwise it will be very easy to break.
|
|
|
|
|
@ -356,6 +352,15 @@ slave-priority 100
|
|
|
|
|
# Please note that changing the name of commands that are logged into the
|
|
|
|
|
# AOF file or transmitted to slaves may cause problems.
|
|
|
|
|
|
|
|
|
|
################################ CLUSTER ###############################
|
|
|
|
|
|
|
|
|
|
# Max execution time of a Lua script in milliseconds.
|
|
|
|
|
#zookeeper-servers 127.0.0.1:2181,127.0.0.1:2182,127.0.0.1:2183
|
|
|
|
|
#zk-recv-timeout 10000
|
|
|
|
|
#zk-clientid-file ${ARDB_HOME}/ardb.zkclientid
|
|
|
|
|
cluster-name ardb-cluster
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
################################### LIMITS ####################################
|
|
|
|
|
|
|
|
|
|
# Set the max number of connected clients at the same time. By default
|
|
|
|
|
@ -369,155 +374,37 @@ slave-priority 100
|
|
|
|
|
#
|
|
|
|
|
# maxclients 10000
|
|
|
|
|
|
|
|
|
|
# Don't use more memory than the specified amount of bytes.
|
|
|
|
|
# When the memory limit is reached Redis will try to remove keys
|
|
|
|
|
# according to the eviction policy selected (see maxmemory-policy).
|
|
|
|
|
#
|
|
|
|
|
# If Redis can't remove keys according to the policy, or if the policy is
|
|
|
|
|
# set to 'noeviction', Redis will start to reply with errors to commands
|
|
|
|
|
# that would use more memory, like SET, LPUSH, and so on, and will continue
|
|
|
|
|
# to reply to read-only commands like GET.
|
|
|
|
|
#
|
|
|
|
|
# This option is usually useful when using Redis as an LRU cache, or to set
|
|
|
|
|
# a hard memory limit for an instance (using the 'noeviction' policy).
|
|
|
|
|
#
|
|
|
|
|
# WARNING: If you have slaves attached to an instance with maxmemory on,
|
|
|
|
|
# the size of the output buffers needed to feed the slaves are subtracted
|
|
|
|
|
# from the used memory count, so that network problems / resyncs will
|
|
|
|
|
# not trigger a loop where keys are evicted, and in turn the output
|
|
|
|
|
# buffer of slaves is full with DELs of keys evicted triggering the deletion
|
|
|
|
|
# of more keys, and so forth until the database is completely emptied.
|
|
|
|
|
#
|
|
|
|
|
# In short... if you have slaves attached it is suggested that you set a lower
|
|
|
|
|
# limit for maxmemory so that there is some free RAM on the system for slave
|
|
|
|
|
# output buffers (but this is not needed if the policy is 'noeviction').
|
|
|
|
|
#
|
|
|
|
|
# maxmemory <bytes>
|
|
|
|
|
|
|
|
|
|
# MAXMEMORY POLICY: how Redis will select what to remove when maxmemory
|
|
|
|
|
# is reached. You can select among five behaviors:
|
|
|
|
|
#
|
|
|
|
|
# volatile-lru -> remove the key with an expire set using an LRU algorithm
|
|
|
|
|
# allkeys-lru -> remove any key accordingly to the LRU algorithm
|
|
|
|
|
# volatile-random -> remove a random key with an expire set
|
|
|
|
|
# allkeys-random -> remove a random key, any key
|
|
|
|
|
# volatile-ttl -> remove the key with the nearest expire time (minor TTL)
|
|
|
|
|
# noeviction -> don't expire at all, just return an error on write operations
|
|
|
|
|
#
|
|
|
|
|
# Note: with any of the above policies, Redis will return an error on write
|
|
|
|
|
# operations, when there are not suitable keys for eviction.
|
|
|
|
|
#
|
|
|
|
|
# At the date of writing this commands are: set setnx setex append
|
|
|
|
|
# incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd
|
|
|
|
|
# sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby
|
|
|
|
|
# zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby
|
|
|
|
|
# getset mset msetnx exec sort
|
|
|
|
|
#
|
|
|
|
|
# The default is:
|
|
|
|
|
#
|
|
|
|
|
# maxmemory-policy volatile-lru
|
|
|
|
|
# The client output buffer limits can be used to force disconnection of clients
|
|
|
|
|
# that are not reading data from the server fast enough for some reason (a
|
|
|
|
|
# common reason is that a Pub/Sub/Slave client can't consume messages as fast as the
|
|
|
|
|
# publisher can produce them).
|
|
|
|
|
slave-client-output-buffer-limit 256mb
|
|
|
|
|
pubsub-client-output-buffer-limit 32mb
|
|
|
|
|
|
|
|
|
|
# LRU and minimal TTL algorithms are not precise algorithms but approximated
|
|
|
|
|
# algorithms (in order to save memory), so you can select as well the sample
|
|
|
|
|
# size to check. For instance for default Redis will check three keys and
|
|
|
|
|
# pick the one that was used less recently, you can change the sample size
|
|
|
|
|
# using the following configuration directive.
|
|
|
|
|
#
|
|
|
|
|
# maxmemory-samples 3
|
|
|
|
|
################################## SLOW LOG ###################################
|
|
|
|
|
|
|
|
|
|
############################## APPEND ONLY MODE ###############################
|
|
|
|
|
# The Redis Slow Log is a system to log queries that exceeded a specified
|
|
|
|
|
# execution time. The execution time does not include the I/O operations
|
|
|
|
|
# like talking with the client, sending the reply and so forth,
|
|
|
|
|
# but just the time needed to actually execute the command (this is the only
|
|
|
|
|
# stage of command execution where the thread is blocked and can not serve
|
|
|
|
|
# other requests in the meantime).
|
|
|
|
|
#
|
|
|
|
|
# You can configure the slow log with two parameters: one tells Redis
|
|
|
|
|
# what is the execution time, in microseconds, to exceed in order for the
|
|
|
|
|
# command to get logged, and the other parameter is the length of the
|
|
|
|
|
# slow log. When a new command is logged the oldest one is removed from the
|
|
|
|
|
# queue of logged commands.
|
|
|
|
|
|
|
|
|
|
# By default Redis asynchronously dumps the dataset on disk. This mode is
|
|
|
|
|
# good enough in many applications, but an issue with the Redis process or
|
|
|
|
|
# a power outage may result into a few minutes of writes lost (depending on
|
|
|
|
|
# the configured save points).
|
|
|
|
|
#
|
|
|
|
|
# The Append Only File is an alternative persistence mode that provides
|
|
|
|
|
# much better durability. For instance using the default data fsync policy
|
|
|
|
|
# (see later in the config file) Redis can lose just one second of writes in a
|
|
|
|
|
# dramatic event like a server power outage, or a single write if something
|
|
|
|
|
# wrong with the Redis process itself happens, but the operating system is
|
|
|
|
|
# still running correctly.
|
|
|
|
|
#
|
|
|
|
|
# AOF and RDB persistence can be enabled at the same time without problems.
|
|
|
|
|
# If the AOF is enabled on startup Redis will load the AOF, that is the file
|
|
|
|
|
# with the better durability guarantees.
|
|
|
|
|
#
|
|
|
|
|
# Please check http://redis.io/topics/persistence for more information.
|
|
|
|
|
# The following time is expressed in microseconds, so 1000000 is equivalent
|
|
|
|
|
# to one second. Note that a negative number disables the slow log, while
|
|
|
|
|
# a value of zero forces the logging of every command.
|
|
|
|
|
slowlog-log-slower-than 10000
|
|
|
|
|
|
|
|
|
|
appendonly no
|
|
|
|
|
|
|
|
|
|
# The name of the append only file (default: "appendonly.aof")
|
|
|
|
|
|
|
|
|
|
appendfilename "appendonly.aof"
|
|
|
|
|
|
|
|
|
|
# The fsync() call tells the Operating System to actually write data on disk
|
|
|
|
|
# instead to wait for more data in the output buffer. Some OS will really flush
|
|
|
|
|
# data on disk, some other OS will just try to do it ASAP.
|
|
|
|
|
#
|
|
|
|
|
# Redis supports three different modes:
|
|
|
|
|
#
|
|
|
|
|
# no: don't fsync, just let the OS flush the data when it wants. Faster.
|
|
|
|
|
# always: fsync after every write to the append only log . Slow, Safest.
|
|
|
|
|
# everysec: fsync only one time every second. Compromise.
|
|
|
|
|
#
|
|
|
|
|
# The default is "everysec", as that's usually the right compromise between
|
|
|
|
|
# speed and data safety. It's up to you to understand if you can relax this to
|
|
|
|
|
# "no" that will let the operating system flush the output buffer when
|
|
|
|
|
# it wants, for better performances (but if you can live with the idea of
|
|
|
|
|
# some data loss consider the default persistence mode that's snapshotting),
|
|
|
|
|
# or on the contrary, use "always" that's very slow but a bit safer than
|
|
|
|
|
# everysec.
|
|
|
|
|
#
|
|
|
|
|
# More details please check the following article:
|
|
|
|
|
# http://antirez.com/post/redis-persistence-demystified.html
|
|
|
|
|
#
|
|
|
|
|
# If unsure, use "everysec".
|
|
|
|
|
|
|
|
|
|
# appendfsync always
|
|
|
|
|
appendfsync everysec
|
|
|
|
|
# appendfsync no
|
|
|
|
|
|
|
|
|
|
# When the AOF fsync policy is set to always or everysec, and a background
|
|
|
|
|
# saving process (a background save or AOF log background rewriting) is
|
|
|
|
|
# performing a lot of I/O against the disk, in some Linux configurations
|
|
|
|
|
# Redis may block too long on the fsync() call. Note that there is no fix for
|
|
|
|
|
# this currently, as even performing fsync in a different thread will block
|
|
|
|
|
# our synchronous write(2) call.
|
|
|
|
|
#
|
|
|
|
|
# In order to mitigate this problem it's possible to use the following option
|
|
|
|
|
# that will prevent fsync() from being called in the main process while a
|
|
|
|
|
# BGSAVE or BGREWRITEAOF is in progress.
|
|
|
|
|
#
|
|
|
|
|
# This means that while another child is saving, the durability of Redis is
|
|
|
|
|
# the same as "appendfsync none". In practical terms, this means that it is
|
|
|
|
|
# possible to lose up to 30 seconds of log in the worst scenario (with the
|
|
|
|
|
# default Linux settings).
|
|
|
|
|
#
|
|
|
|
|
# If you have latency problems turn this to "yes". Otherwise leave it as
|
|
|
|
|
# "no" that is the safest pick from the point of view of durability.
|
|
|
|
|
|
|
|
|
|
no-appendfsync-on-rewrite no
|
|
|
|
|
|
|
|
|
|
# Automatic rewrite of the append only file.
|
|
|
|
|
# Redis is able to automatically rewrite the log file implicitly calling
|
|
|
|
|
# BGREWRITEAOF when the AOF log size grows by the specified percentage.
|
|
|
|
|
#
|
|
|
|
|
# This is how it works: Redis remembers the size of the AOF file after the
|
|
|
|
|
# latest rewrite (if no rewrite has happened since the restart, the size of
|
|
|
|
|
# the AOF at startup is used).
|
|
|
|
|
#
|
|
|
|
|
# This base size is compared to the current size. If the current size is
|
|
|
|
|
# bigger than the specified percentage, the rewrite is triggered. Also
|
|
|
|
|
# you need to specify a minimal size for the AOF file to be rewritten, this
|
|
|
|
|
# is useful to avoid rewriting the AOF file even if the percentage increase
|
|
|
|
|
# is reached but it is still pretty small.
|
|
|
|
|
#
|
|
|
|
|
# Specify a percentage of zero in order to disable the automatic AOF
|
|
|
|
|
# rewrite feature.
|
|
|
|
|
|
|
|
|
|
auto-aof-rewrite-percentage 100
|
|
|
|
|
auto-aof-rewrite-min-size 64mb
|
|
|
|
|
# There is no limit to this length. Just be aware that it will consume memory.
|
|
|
|
|
# You can reclaim memory used by the slow log with SLOWLOG RESET.
|
|
|
|
|
slowlog-max-len 128
|
|
|
|
|
|
|
|
|
|
################################ LUA SCRIPTING ###############################
|
|
|
|
|
|
|
|
|
|
@ -537,180 +424,45 @@ auto-aof-rewrite-min-size 64mb
|
|
|
|
|
# Set it to 0 or a negative value for unlimited execution without warnings.
|
|
|
|
|
lua-time-limit 5000
|
|
|
|
|
|
|
|
|
|
################################## SLOW LOG ###################################
|
|
|
|
|
|
|
|
|
|
# The Redis Slow Log is a system to log queries that exceeded a specified
|
|
|
|
|
# execution time. The execution time does not include the I/O operations
|
|
|
|
|
# like talking with the client, sending the reply and so forth,
|
|
|
|
|
# but just the time needed to actually execute the command (this is the only
|
|
|
|
|
# stage of command execution where the thread is blocked and can not serve
|
|
|
|
|
# other requests in the meantime).
|
|
|
|
|
#
|
|
|
|
|
# You can configure the slow log with two parameters: one tells Redis
|
|
|
|
|
# what is the execution time, in microseconds, to exceed in order for the
|
|
|
|
|
# command to get logged, and the other parameter is the length of the
|
|
|
|
|
# slow log. When a new command is logged the oldest one is removed from the
|
|
|
|
|
# queue of logged commands.
|
|
|
|
|
|
|
|
|
|
# The following time is expressed in microseconds, so 1000000 is equivalent
|
|
|
|
|
# to one second. Note that a negative number disables the slow log, while
|
|
|
|
|
# a value of zero forces the logging of every command.
|
|
|
|
|
slowlog-log-slower-than 10000
|
|
|
|
|
|
|
|
|
|
# There is no limit to this length. Just be aware that it will consume memory.
|
|
|
|
|
# You can reclaim memory used by the slow log with SLOWLOG RESET.
|
|
|
|
|
slowlog-max-len 128
|
|
|
|
|
|
|
|
|
|
############################# Event notification ##############################
|
|
|
|
|
|
|
|
|
|
# Redis can notify Pub/Sub clients about events happening in the key space.
|
|
|
|
|
# This feature is documented at http://redis.io/topics/keyspace-events
|
|
|
|
|
#
|
|
|
|
|
# For instance if keyspace events notification is enabled, and a client
|
|
|
|
|
# performs a DEL operation on key "foo" stored in the Database 0, two
|
|
|
|
|
# messages will be published via Pub/Sub:
|
|
|
|
|
#
|
|
|
|
|
# PUBLISH __keyspace@0__:foo del
|
|
|
|
|
# PUBLISH __keyevent@0__:del foo
|
|
|
|
|
#
|
|
|
|
|
# It is possible to select the events that Redis will notify among a set
|
|
|
|
|
# of classes. Every class is identified by a single character:
|
|
|
|
|
#
|
|
|
|
|
# K Keyspace events, published with __keyspace@<db>__ prefix.
|
|
|
|
|
# E Keyevent events, published with __keyevent@<db>__ prefix.
|
|
|
|
|
# g Generic commands (non-type specific) like DEL, EXPIRE, RENAME, ...
|
|
|
|
|
# $ String commands
|
|
|
|
|
# l List commands
|
|
|
|
|
# s Set commands
|
|
|
|
|
# h Hash commands
|
|
|
|
|
# z Sorted set commands
|
|
|
|
|
# x Expired events (events generated every time a key expires)
|
|
|
|
|
# e Evicted events (events generated when a key is evicted for maxmemory)
|
|
|
|
|
# A Alias for g$lshzxe, so that the "AKE" string means all the events.
|
|
|
|
|
#
|
|
|
|
|
# The "notify-keyspace-events" takes as argument a string that is composed
|
|
|
|
|
# by zero or multiple characters. The empty string means that notifications
|
|
|
|
|
# are disabled at all.
|
|
|
|
|
#
|
|
|
|
|
# Example: to enable list and generic events, from the point of view of the
|
|
|
|
|
# event name, use:
|
|
|
|
|
#
|
|
|
|
|
# notify-keyspace-events Elg
|
|
|
|
|
#
|
|
|
|
|
# Example 2: to get the stream of the expired keys subscribing to channel
|
|
|
|
|
# name __keyevent@0__:expired use:
|
|
|
|
|
#
|
|
|
|
|
# notify-keyspace-events Ex
|
|
|
|
|
#
|
|
|
|
|
# By default all notifications are disabled because most users don't need
|
|
|
|
|
# this feature and the feature has some overhead. Note that if you don't
|
|
|
|
|
# specify at least one of K or E, no events will be delivered.
|
|
|
|
|
notify-keyspace-events ""
|
|
|
|
|
|
|
|
|
|
############################### ADVANCED CONFIG ###############################
|
|
|
|
|
## Since some redis clients would check info command's output, this configuration
|
|
|
|
|
## would be set in 'misc' section of 'info's output
|
|
|
|
|
#additional-misc-info redis_version:2.8.9\nredis_trick:yes
|
|
|
|
|
|
|
|
|
|
# Hashes are encoded using a memory efficient data structure when they have a
|
|
|
|
|
# small number of entries, and the biggest entry does not exceed a given
|
|
|
|
|
# threshold. These thresholds can be configured using the following directives.
|
|
|
|
|
hash-max-ziplist-entries 512
|
|
|
|
|
hash-max-ziplist-value 64
|
|
|
|
|
|
|
|
|
|
# Similarly to hashes, small lists are also encoded in a special way in order
|
|
|
|
|
# to save a lot of space. The special representation is only used when
|
|
|
|
|
# you are under the following limits:
|
|
|
|
|
list-max-ziplist-entries 512
|
|
|
|
|
list-max-ziplist-value 64
|
|
|
|
|
# HyperLogLog sparse representation bytes limit. The limit includes the
|
|
|
|
|
# 16 bytes header. When an HyperLogLog using the sparse representation crosses
|
|
|
|
|
# this limit, it is convereted into the dense representation.
|
|
|
|
|
#
|
|
|
|
|
# A value greater than 16000 is totally useless, since at that point the
|
|
|
|
|
# dense representation is more memory efficient.
|
|
|
|
|
#
|
|
|
|
|
# The suggested value is ~ 3000 in order to have the benefits of
|
|
|
|
|
# the space efficient encoding without slowing down too much PFADD,
|
|
|
|
|
# which is O(N) with the sparse encoding. Thev value can be raised to
|
|
|
|
|
# ~ 10000 when CPU is not a concern, but space is, and the data set is
|
|
|
|
|
# composed of many HyperLogLogs with cardinality in the 0 - 15000 range.
|
|
|
|
|
hll-sparse-max-bytes 3000
|
|
|
|
|
|
|
|
|
|
# Sets have a special encoding in just one case: when a set is composed
|
|
|
|
|
# of just strings that happens to be integers in radix 10 in the range
|
|
|
|
|
# of 64 bit signed integers.
|
|
|
|
|
# The following configuration setting sets the limit in the size of the
|
|
|
|
|
# set in order to use this special memory saving encoding.
|
|
|
|
|
set-max-intset-entries 512
|
|
|
|
|
#trusted-ip 10.10.10.10
|
|
|
|
|
#trusted-ip 10.10.10.*
|
|
|
|
|
|
|
|
|
|
# Similarly to hashes and lists, sorted sets are also specially encoded in
|
|
|
|
|
# order to save a lot of space. This encoding is only used when the length and
|
|
|
|
|
# elements of a sorted set are below the following limits:
|
|
|
|
|
zset-max-ziplist-entries 128
|
|
|
|
|
zset-max-ziplist-value 64
|
|
|
|
|
# By default Ardb would not compact whole db after loading a snapshot, which may happens
|
|
|
|
|
# when slave syncing from master, processing 'import' command from client.
|
|
|
|
|
# This configuration only works with rocksdb engine.
|
|
|
|
|
# If ardb dord not compact data after loading snapshot file, there would be poor read performance before rocksdb
|
|
|
|
|
# completes the next compaction task internally. While the compaction task would cost very long time for a huge data set.
|
|
|
|
|
compact-after-snapshot-load false
|
|
|
|
|
|
|
|
|
|
# Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in
|
|
|
|
|
# order to help rehashing the main Redis hash table (the one mapping top-level
|
|
|
|
|
# keys to values). The hash table implementation Redis uses (see dict.c)
|
|
|
|
|
# performs a lazy rehashing: the more operation you run into a hash table
|
|
|
|
|
# that is rehashing, the more rehashing "steps" are performed, so if the
|
|
|
|
|
# server is idle the rehashing is never complete and some more memory is used
|
|
|
|
|
# by the hash table.
|
|
|
|
|
#
|
|
|
|
|
# The default is to use this millisecond 10 times every second in order to
|
|
|
|
|
# active rehashing the main dictionaries, freeing memory when possible.
|
|
|
|
|
#
|
|
|
|
|
# If unsure:
|
|
|
|
|
# use "activerehashing no" if you have hard latency requirements and it is
|
|
|
|
|
# not a good thing in your environment that Redis can reply form time to time
|
|
|
|
|
# to queries with 2 milliseconds delay.
|
|
|
|
|
#
|
|
|
|
|
# use "activerehashing yes" if you don't have such hard requirements but
|
|
|
|
|
# want to free memory asap when possible.
|
|
|
|
|
activerehashing yes
|
|
|
|
|
# Ardb would store cursor in memory
|
|
|
|
|
scan-redis-compatible yes
|
|
|
|
|
scan-cursor-expire-after 60
|
|
|
|
|
|
|
|
|
|
# The client output buffer limits can be used to force disconnection of clients
|
|
|
|
|
# that are not reading data from the server fast enough for some reason (a
|
|
|
|
|
# common reason is that a Pub/Sub client can't consume messages as fast as the
|
|
|
|
|
# publisher can produce them).
|
|
|
|
|
#
|
|
|
|
|
# The limit can be set differently for the three different classes of clients:
|
|
|
|
|
#
|
|
|
|
|
# normal -> normal clients
|
|
|
|
|
# slave -> slave clients and MONITOR clients
|
|
|
|
|
# pubsub -> clients subscribed to at least one pubsub channel or pattern
|
|
|
|
|
#
|
|
|
|
|
# The syntax of every client-output-buffer-limit directive is the following:
|
|
|
|
|
#
|
|
|
|
|
# client-output-buffer-limit <class> <hard limit> <soft limit> <soft seconds>
|
|
|
|
|
#
|
|
|
|
|
# A client is immediately disconnected once the hard limit is reached, or if
|
|
|
|
|
# the soft limit is reached and remains reached for the specified number of
|
|
|
|
|
# seconds (continuously).
|
|
|
|
|
# So for instance if the hard limit is 32 megabytes and the soft limit is
|
|
|
|
|
# 16 megabytes / 10 seconds, the client will get disconnected immediately
|
|
|
|
|
# if the size of the output buffers reach 32 megabytes, but will also get
|
|
|
|
|
# disconnected if the client reaches 16 megabytes and continuously overcomes
|
|
|
|
|
# the limit for 10 seconds.
|
|
|
|
|
#
|
|
|
|
|
# By default normal clients are not limited because they don't receive data
|
|
|
|
|
# without asking (in a push way), but just after a request, so only
|
|
|
|
|
# asynchronous clients may create a scenario where data is requested faster
|
|
|
|
|
# than it can read.
|
|
|
|
|
#
|
|
|
|
|
# Instead there is a default limit for pubsub and slave clients, since
|
|
|
|
|
# subscribers and slaves receive data in a push fashion.
|
|
|
|
|
#
|
|
|
|
|
# Both the hard or the soft limit can be disabled by setting them to zero.
|
|
|
|
|
client-output-buffer-limit normal 0 0 0
|
|
|
|
|
client-output-buffer-limit slave 256mb 64mb 60
|
|
|
|
|
client-output-buffer-limit pubsub 32mb 8mb 60
|
|
|
|
|
redis-compatible-mode yes
|
|
|
|
|
redis-compatible-version 2.8.0
|
|
|
|
|
|
|
|
|
|
# Redis calls an internal function to perform many background tasks, like
|
|
|
|
|
# closing connections of clients in timeout, purging expired keys that are
|
|
|
|
|
# never requested, and so forth.
|
|
|
|
|
#
|
|
|
|
|
# Not all tasks are performed with the same frequency, but Redis checks for
|
|
|
|
|
# tasks to perform accordingly to the specified "hz" value.
|
|
|
|
|
#
|
|
|
|
|
# By default "hz" is set to 10. Raising the value will use more CPU when
|
|
|
|
|
# Redis is idle, but at the same time will make Redis more responsive when
|
|
|
|
|
# there are many keys expiring at the same time, and timeouts may be
|
|
|
|
|
# handled with more precision.
|
|
|
|
|
#
|
|
|
|
|
# The range is between 1 and 500, however a value over 100 is usually not
|
|
|
|
|
# a good idea. Most users should use the default of 10 and raise this up to
|
|
|
|
|
# 100 only in environments where very low latency is required.
|
|
|
|
|
hz 10
|
|
|
|
|
statistics-log-period 600
|
|
|
|
|
|
|
|
|
|
# When a child rewrites the AOF file, if the following option is enabled
|
|
|
|
|
# the file will be fsync-ed every 32 MB of data generated. This is useful
|
|
|
|
|
# in order to commit the file to the disk more incrementally and avoid
|
|
|
|
|
# big latency spikes.
|
|
|
|
|
aof-rewrite-incremental-fsync yes
|
|
|
|
|
|
|
|
|
|
# Range deletion min size trigger
|
|
|
|
|
range-delete-min-size 100
|
|
|
|
|
|
Terrtia