Redis in Action : Redis 实战学习笔记 All In One
Redis in Action : Redis 实战学习笔记 All In One
Redis
https://github.com/redis/redis
Redis in Action
《Redis实战》是《Redis in Action》一书的中文翻译版， 该书深入浅出地介绍了 Redis 的字符串、列表、散列、集合、有序集合等五种结构， 并通过文章聚合网站、cookie、购物车、网页缓存、日志、计数器、IP 所属地址查询程序、自动补全、分布式锁、计数信号量、任务队列、消息队列、搜索程序、广告定向程序、社交网站等一系列实用示例展示了 Redis 的用法。
Redis in Action
Josiah Carlson
Foreword by Salvatore Sanfilippo
June 2013
ISBN 9781617290855
320 pages
printed in black & white
https://www.manning.com/books/redis-in-action
Example codes (Python)
https://github.com/josiahcarlson/redis-in-action
https://github.com/antirez/redis
demos
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redis-cli
https://redis.io/docs/latest/develop/tools/cli/#usage
Usage: redis-cli [OPTIONS] [cmd [arg [arg ...]]]
-h <hostname> Server hostname (default: 127.0.0.1).
-p <port> Server port (default: 6379).
-t <timeout> Server connection timeout in seconds (decimals allowed).
Default timeout is 0, meaning no limit, depending on the OS.
-s <socket> Server socket (overrides hostname and port).
-a <password> Password to use when connecting to the server.
You can also use the REDISCLI_AUTH environment
variable to pass this password more safely
(if both are used, this argument takes precedence).
--user <username> Used to send ACL style 'AUTH username pass'. Needs -a.
--pass <password> Alias of -a for consistency with the new --user option.
--askpass Force user to input password with mask from STDIN.
If this argument is used, '-a' and REDISCLI_AUTH
environment variable will be ignored.
-u <uri> Server URI on format redis://user:password@host:port/dbnum
User, password and dbnum are optional. For authentication
without a username, use username 'default'. For TLS, use
the scheme 'rediss'.
-r <repeat> Execute specified command N times.
-i <interval> When -r is used, waits <interval> seconds per command.
It is possible to specify sub-second times like -i 0.1.
This interval is also used in --scan and --stat per cycle.
and in --bigkeys, --memkeys, --keystats, and --hotkeys per 100 cycles.
-n <db> Database number.
-2 Start session in RESP2 protocol mode.
-3 Start session in RESP3 protocol mode.
-x Read last argument from STDIN (see example below).
-X Read <tag> argument from STDIN (see example below).
-d <delimiter> Delimiter between response bulks for raw formatting (default: \n).
-D <delimiter> Delimiter between responses for raw formatting (default: \n).
-c Enable cluster mode (follow -ASK and -MOVED redirections).
-e Return exit error code when command execution fails.
-4 Prefer IPv4 over IPv6 on DNS lookup.
-6 Prefer IPv6 over IPv4 on DNS lookup.
--raw Use raw formatting for replies (default when STDOUT is
not a tty).
--no-raw Force formatted output even when STDOUT is not a tty.
--quoted-input Force input to be handled as quoted strings.
--csv Output in CSV format.
--json Output in JSON format (default RESP3, use -2 if you want to use with RESP2).
--quoted-json Same as --json, but produce ASCII-safe quoted strings, not Unicode.
--show-pushes <yn> Whether to print RESP3 PUSH messages. Enabled by default when
STDOUT is a tty but can be overridden with --show-pushes no.
--stat Print rolling stats about server: mem, clients, ...
--latency Enter a special mode continuously sampling latency.
If you use this mode in an interactive session it runs
forever displaying real-time stats. Otherwise if --raw or
--csv is specified, or if you redirect the output to a non
TTY, it samples the latency for 1 second (you can use
-i to change the interval), then produces a single output
and exits.
--latency-history Like --latency but tracking latency changes over time.
Default time interval is 15 sec. Change it using -i.
--latency-dist Shows latency as a spectrum, requires xterm 256 colors.
Default time interval is 1 sec. Change it using -i.
--lru-test <keys> Simulate a cache workload with an 80-20 distribution.
--replica Simulate a replica showing commands received from the master.
--rdb <filename> Transfer an RDB dump from remote server to local file.
Use filename of "-" to write to stdout.
--functions-rdb <filename> Like --rdb but only get the functions (not the keys)
when getting the RDB dump file.
--pipe Transfer raw Redis protocol from stdin to server.
--pipe-timeout <n> In --pipe mode, abort with error if after sending all data.
no reply is received within <n> seconds.
Default timeout: 30. Use 0 to wait forever.
--bigkeys Sample Redis keys looking for keys with many elements (complexity).
--memkeys Sample Redis keys looking for keys consuming a lot of memory.
--memkeys-samples <n> Sample Redis keys looking for keys consuming a lot of memory.
And define number of key elements to sample
--keystats Sample Redis keys looking for keys memory size and length (combine bigkeys and memkeys).
--keystats-samples <n> Sample Redis keys looking for keys memory size and length.
And define number of key elements to sample (only for memory usage).
--cursor <n> Start the scan at the cursor <n> (usually after a Ctrl-C).
Optionally used with --keystats and --keystats-samples.
--top <n> To display <n> top key sizes (default: 10).
Optionally used with --keystats and --keystats-samples.
--hotkeys Sample Redis keys looking for hot keys.
only works when maxmemory-policy is *lfu.
--scan List all keys using the SCAN command.
--pattern <pat> Keys pattern when using the --scan, --bigkeys, --memkeys,
--keystats or --hotkeys options (default: *).
--count <count> Count option when using the --scan, --bigkeys, --memkeys,
--keystats or --hotkeys (default: 10).
--quoted-pattern <pat> Same as --pattern, but the specified string can be
quoted, in order to pass an otherwise non binary-safe string.
--intrinsic-latency <sec> Run a test to measure intrinsic system latency.
The test will run for the specified amount of seconds.
--eval <file> Send an EVAL command using the Lua script at <file>.
--ldb Used with --eval enable the Redis Lua debugger.
--ldb-sync-mode Like --ldb but uses the synchronous Lua debugger, in
this mode the server is blocked and script changes are
not rolled back from the server memory.
--cluster <command> [args...] [opts...]
Cluster Manager command and arguments (see below).
--verbose Verbose mode.
--no-auth-warning Don't show warning message when using password on command
line interface.
--help Output this help and exit.
--version Output version and exit.
Cluster Manager Commands:
Use --cluster help to list all available cluster manager commands.
Examples:
redis-cli -u redis://default:PASSWORD@localhost:6379/0
cat /etc/passwd | redis-cli -x set mypasswd
redis-cli -D "" --raw dump key > key.dump && redis-cli -X dump_tag restore key2 0 dump_tag replace < key.dump
redis-cli -r 100 lpush mylist x
redis-cli -r 100 -i 1 info | grep used_memory_human:
redis-cli --quoted-input set '"null-\x00-separated"' value
redis-cli --eval myscript.lua key1 key2 , arg1 arg2 arg3
redis-cli --scan --pattern '*:12345*'
redis-cli --scan --pattern '*:12345*' --count 100
(Note: when using --eval the comma separates KEYS[] from ARGV[] items)
When no command is given, redis-cli starts in interactive mode.
Type "help" in interactive mode for information on available commands
and settings.
refs
https://github.com/xgqfrms/Redis-In-Action
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