Commit Graph

4 Commits

Author SHA1 Message Date
Takuya ASADA
d845fde560 redis: add ttl command
Add ttl command that returns remaining TTL of the key.

See: https://redis.io/commands/ttl
2020-04-27 13:58:33 +09:00
Piotr Jastrzebski
ca4a89d239 dht: add dht::decorate_key
and replace all dht::global_partitioner().decorate_key
with dht::decorate_key

It is an improvement because dht::decorate_key takes schema
and uses it to obtain partitioner instead of using global
partitioner as it was before.

Signed-off-by: Piotr Jastrzebski <piotr@scylladb.com>
2020-02-17 10:59:06 +01:00
Rafael Ávila de Espíndola
bd93a0af52 types: Return bytes_opt from data_value::serialize
Since a data_value can contain a null value, returning bytes from
serialize() was losing information as it was mapping null to empty.

This also introduces a serialize_nonnull that still returns bytes, but
results in an internal error if called with a null value.

Signed-off-by: Rafael Ávila de Espíndola <espindola@scylladb.com>
2020-01-29 14:04:59 -08:00
Peng Jian
0737d9e84d redis: Redis API in Scylla
Scylla has advantage and amazing features. If Redis build on the top of Scylla,
it has the above features automatically. It's achived great progress
in cluster master managment, data persistence, failover and replication.

The benefits to the users are easy to use and develop in their production
environment, and taking avantages of Scylla.

Using the Ragel to parse the Redis request, server abtains the command name
and the parameters from the request, invokes the Scylla's internal API to
read and write the data, then replies to client.

Signed-off-by: Peng Jian, <pengjian.uestc@gmail.com>
2019-11-20 04:55:56 +08:00