Apache Kvrocks 2.16.0 lands with many improvements and security fixes — extending the SET command with native compare-and-set, adding operator-friendly traffic control via CLIENT PAUSE/UNPAUSE, sharpening cluster slot management with CLUSTE…
This release marks a significant step forward in Redis compatibility: the new redis-databases option closes the gap of SELECT command between Kvrocks and Redis. Applications that rely on Redis's multi-database model can now migrate to Kvroc…
These commands are subcommands for OBJECT, using as OBJECT DUMP etc. These commands are subcommands for BITFIELD, using as BITFIELD key GET etc. These commands are subcommands for BITFIELD_RO, using as BITFIELD_RO key GET etc. String and bi…
Question: How do I get keys num in Kvrocks? Kvrocks doesn't store the key number directly. It needs to scan the DB and then retrieve the key number by using the dbsize scan command. Question: Why didn't the Kvrocks disk size change after th…
Apache Kvrocks™ Search, also known as Kvrocks Search (or KQIR, as a technical term), is an internal component of Apache Kvrocks™. It functions as a query engine that supports (secondary) indexing on structured data and complex queries by ef…
To make the memory profiling easier, Kvrocks provides the command KPROFILE to active/deactive and dump the memory profiling data. Note that it is only available while Jemalloc is enabled in the building phase. Before profiling, you need to
Before releasing the cluster mode of Apache Kvrocks™, we usually used the pre-sharding way to scale out the capacity like sharding with Twemproxy, and used Redis Sentinel to guarantee the availability. Although it works well in most scenes
You can either get started with Apache Kvrocks™ with Docker or compile a binary from source. Now you can use the redis-cli to run the kvrocks server as Redis on port 6666: For persisted data, prefer using a docker volume over a bind-mounted…
Pretty cool, right? Let's dive in! (The full example is provided in the final section.) The year 2023 is a small milestone for the community in open source, and it is also a new starting point. Kvrocks successfully graduated from the incuba…
Pretty cool, right? Let's dive in! (The full example is provided in the final section.) Apache Kvrocks is a Redis-compatible database built on RocksDB. It supports the RESP protocol (version 2 and 3) and a wide range of Redis commands, enco…
Apache Kvrocks™ supports full backup and incremental backup. You can use bgsave command to trigger Kvrocks to generate a backup, and use rsync tool to copy all files of backup to remote server. You can try incremental backup if your Kvrocks…
kvrocks2redis is used to migrate the data from Apache Kvrocks™ to Redis (as well as Kvrocks itself). It will read and parse data from the local dir first and then use the psync command to read the remain change streams from the target host.…