Skip to content

fastcached

HELLO

fastcached

Home
Getting started
Getting started
- Install
- Quickstart
Tools
Tools
- fastcache-cc (compiler launcher)
- compile-cache-testclient
Protocols
Protocols
Commands
Commands
- memcached storage
  memcached storage
  - set
  - add
  - replace
  - append
  - prepend
  - cas
- memcached retrieval
  memcached retrieval
  - get
  - gets
  - gat
  - gats
- memcached deletion
  memcached deletion
  - delete
- memcached arithmetic
  memcached arithmetic
  - incr
  - decr
- memcached lifetime
  memcached lifetime
  - touch
- memcached meta
  memcached meta
  - mg
  - ms
  - md
  - ma
  - me
  - mn
- memcached admin
  memcached admin
  - stats
  - flush_all
  - cache_memlimit
  - verbosity
  - version
  - quit
- memcached slabs (stubs)
  memcached slabs (stubs)
  - slabs
  - lru
  - lru_crawler
- Redis string
  Redis string
  - GET
  - SET
  - SETEX
  - PSETEX
- Redis keys
  Redis keys
  - DEL
  - UNLINK
  - EXISTS
- Redis connection
  Redis connection
  - PING
  - ECHO
  - HELLO HELLO
    Table of contents
    
    Synopsis
    
    Responses
  - AUTH
  - SELECT
  - CLIENT
  - QUIT
- Redis server
  Redis server
  - INFO
  - COMMAND
  - CONFIG
  - FLUSHDB
  - FLUSHALL
- Unsupported Redis commands
Operations
Operations
Internals
Internals
About
About
- License

HELLO¶

Protocols: Redis RESP2

Negotiates protocol version. fastcached accepts version 2 (RESP2) and rejects version 3 with -NOPROTO.

Synopsis¶

HELLO [protocol-version]

Responses¶

For HELLO or HELLO 2: an array describing the server (server name, version, proto = 2, id, mode, role, modules)
For HELLO 3 (or any version other than 2): -NOPROTO sorry, RESP3 not supported