Remove all keys from the current database.
FLUSHDB
[ASYNC
|
SYNC
]
Delete all the keys of the currently selected DB. This command never fails.
By default, FLUSHDB
will synchronously flush all keys
from the database. Setting the lazyfree-lazy-user-flush
configuration directive to “yes” changes the default flush mode to
asynchronous.
It is possible to use one of the following modifiers to dictate the flushing mode explicitly:
ASYNC
: flushes the database asynchronouslySYNC
: flushes the database synchronouslyNote: an asynchronous FLUSHDB
command only deletes keys
that were present at the time the command was invoked. Keys created
during an asynchronous flush will be unaffected.
Simple string
reply: OK
.
O(N) where N is the number of keys in the selected database
@dangerous @keyspace @slow @write
ASYNC
flushing mode modifier.SYNC
flushing mode modifier.ACL, ACL CAT, ACL DELUSER, ACL DRYRUN, ACL GENPASS, ACL GETUSER, ACL HELP, ACL LIST, ACL LOAD, ACL LOG, ACL SAVE, ACL SETUSER, ACL USERS, ACL WHOAMI, BGREWRITEAOF, BGSAVE, COMMAND, COMMAND COUNT, COMMAND DOCS, COMMAND GETKEYS, COMMAND GETKEYSANDFLAGS, COMMAND HELP, COMMAND INFO, COMMAND LIST, CONFIG, CONFIG GET, CONFIG HELP, CONFIG RESETSTAT, CONFIG REWRITE, CONFIG SET, DBSIZE, DEBUG, FAILOVER, FLUSHALL, INFO, LASTSAVE, LATENCY, LATENCY DOCTOR, LATENCY GRAPH, LATENCY HELP, LATENCY HISTOGRAM, LATENCY HISTORY, LATENCY LATEST, LATENCY RESET, LOLWUT, MEMORY, MEMORY DOCTOR, MEMORY HELP, MEMORY MALLOC-STATS, MEMORY PURGE, MEMORY STATS, MEMORY USAGE, MODULE, MODULE HELP, MODULE LIST, MODULE LOAD, MODULE LOADEX, MODULE UNLOAD, MONITOR, PSYNC, REPLCONF, REPLICAOF, RESTORE-ASKING, ROLE, SAVE, SHUTDOWN, SLOWLOG, SLOWLOG GET, SLOWLOG HELP, SLOWLOG LEN, SLOWLOG RESET, SWAPDB, SYNC, TIME.