Redis Client List Command | Newbie Tutorial

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Redis Client List Command

Redis Server

The Redis Client List command is used to return information and statistics about all clients connected to the server.

Syntax

The basic syntax of the redis Client List command is as follows:

redis 127.0.0.1:6379> CLIENT LIST

Available Version

>= 2.4.0

Return Value

The command returns a multi-line string formatted as follows:

• Each connected client corresponds to one line (separated by LF)
• Each line consists of a series of fields in the form attribute=value, separated by spaces

The following are the meanings of the fields:

• addr: The address and port of the client
• fd: File descriptor used by the socket
• age: Connection duration in seconds
• idle: Idle time in seconds
• flags: Client flags
• db: Database ID currently used by the client
• sub: Number of subscribed channels
• psub: Number of subscribed patterns
• multi: Number of commands being executed in transaction
• qbuf: Length of query buffer (in bytes, 0 means no query buffer allocated)
• qbuf-free: Length of remaining space in query buffer (in bytes, 0 means no remaining space)
• obl: Length of output buffer (in bytes, 0 means no output buffer allocated)
• oll: Number of objects contained in output list (when the output buffer has no remaining space, command replies will be queued to this queue as string objects)
• omem: Total memory occupied by output buffer and output list
• events: File descriptor events
• cmd: Most recently executed command

Client flags can consist of the following parts:

• O: Client is a slave node in MONITOR mode
• S: Client is a slave node in normal mode
• M: Client is a master node
• x: Client is executing a transaction
• b: Client is waiting for blocking events
• i: Client is waiting for VM I/O operations (deprecated)
• d: A watched key has been modified, EXEC command will fail
• c: Close connection after completely writing the response
• u