Introduction
How To Try It
Building Apache Geode
Starting a Geode Server with Redis Enabled
Adding an Additional Geode Redis Server
Shutting Down
Redis Commands
The Redis API for Geode allows an application to send Redis commands to Geode. This will allow users to switch seamlessly from native Redis to Geode as a data store/caching solution.
The API allows Geode to listen for and interpret incoming Redis commands on a designated port.
The Redis API for Geode is currently in early access. We’ll build the develop branch of Apache Geode and then connect the Redis-CLI to that instance.
Note: Currently Geode requires Java 8 JDK to build.
Not all Redis commands are currently supported. The current set of supported Redis commands is listed here.
The Apache Geode source code can be found here
-
In a terminal, git clone the Geode repo:
$ git clone https://github.com/apache/geode.git -
Change the working directory to the Geode directory you cloned
$ cd geode -
Build the Geode application without running the test (REQUIRES JAVA 8)
$ ./gradlew assemble -
Once the build has completed, navigate to the geode-assembly directory which contains the Apache Geode Shell - also referred to as GFSH:
$ cd geode-assembly/build/install/apache-geode/bin -
Once in that folder run the following command:
$ ./gfsh
You should now see GFSH starting up with a version of 1.14.x.-build.x
Note: if you wish to run the Geode Redis API on the default Redis port (6379), make sure to stop any applications running on that port before starting the Geode server, especially any native Redis servers.
Using GFSH enter the following commands:
-
Start a locator. The locator tracks servers and server load. When a client requests a server connection, the locator directs the client to one of the least loaded servers. Learn more.
gfsh> start locator -
After the locator has started, start a server that will be able to handle incoming Redis commands.
For example:
gfsh> start server --name=redisServer1 --locators=localhost[10334] --server-port=0 --redis-port=6379- --name: A name you create for your server.
- --locators: This is the location of the locator you started in step 1.
- --server-port: The port that Geode clients connect to.
- --redis-port: The port that your Redis client will connect to.
Your Geode instance should now be up and running (1 locator and 1 server) and ready to accept Redis commands.
Keep this terminal open and running so that you can easily shutdown the Geode instance when you are done working locally.
-
To confirm that things are running correctly, in a separate terminal run:
$ redis-cliIf working correctly you should now be in the redis-cli and see
127.0.0.1:6379>. If you run thePINGcommand you should receive a response ofPONG.
If you’re interested in testing Geode scalability, in GFSH run the start server command again BUT
make sure you change the --name= and --redis-port= parameters.
For example:
$ start server --name=redisServer2 --locators=localhost[10334] --server-port=0 --redis-port=6380
To shutdown the Geode instance you started, in the terminal with GFSH running type the following command
$ shutdown --include-locators=true
As this command will shut down the entire Geode instance/cluster, you will be prompted with the following choice:
As a lot of data in memory will be lost, including possibly events in queues, do you really want to shutdown the entire distributed system? (Y/n)
To confirm that everything shutdown correctly, if you execute a Redis command in the redis-cli you should see the following message:
Could not connect to Redis at 127.0.0.1:6379: Connection refused
not connected>
The Redis API for Geode currently implements a subset of the full Redis command set. Some commands are unsupported (see table below). Unsupported commands are available to use, but have not been fully tested. There is no guarantee they will work exactly as expected.
If you already have Geode servers running with Redis enabled, you can execute the following command with gfsh to enable unsupported commands:
redis --enable-unsupported-commands
You can also enable unsupported commands when you start the Geode server by setting the Java property enable-redis-unsupported-commands=true:
start server \
--J=-Denable-redis-unsupported-commands=true \
--name=<serverName> \
--locators=<locatorPort> \
--redis-port=<redisPort> \
--redis-bind-address=<redisBindAddress> \
--redis-password=<redisPassword>
Redis Command Status Return to top
| Supported Commands | Unsupported Commands (Implemented - not tested) |
Commands Not Implemented |
|---|---|---|
| APPEND | BITCOUNT | ACL CAT |
| AUTH | BITOP | ACL DELUSER |
| DEL | BITPOS | ACL GENPASS |
| EXISTS | DBSIZE | ACL GETUSER |
| EXPIRE | DECR | ACL HELP |
| EXPIREAT | DECRBY | ACL LIST |
| GET | ECHO | ACL LOAD |
| HGETALL | FLUSHALL | ACL LOG |
| HMSET | FLUSHDB | ACL SAVE |
| HSET | GETBIT | ACL SETUSER |
| KEYS | GETRANGE | ACL USERS |
| PERSIST | GETSET | ACL WHOAMI |
| PEXPIRE | HDEL | BGREWRITEAOF |
| PEXPIREAT | HEXISTS | BGSAVE |
| PING | HGET | BITFIELD |
| PSUBSCRIBE | HINCRBY | BLPOP |
| PTTL | HINCRBYFLOAT | BRPOP |
| PUBLISH | HKEYS | BRPOPLPUSH |
| PUNSUBSCRIBE | HLEN | BZPOPMAX |
| QUIT | HMGET | BZPOPMIN |
| RENAME | HSCAN | CLIENT CACHING |
| SADD | HSETNX | CLIENT GETNAME |
| SET | HSTRLEN | CLIENT GETREDIR |
| SMEMBERS | HVALS | CLIENT ID |
| SREM | INCR | CLIENT KILL |
| SUBSCRIBE | INCRBY | CLIENT LIST |
| TTL | INCRBYFLOAT | CLIENT PAUSE |
| TYPE | INFO | CLIENT REPLY |
| UNSUBSCRIBE | MGET | CLIENT SETNAME |
| MSET | CLIENT TRACKING | |
| MSETNX | CLIENT UNBLOCK | |
| PSETEX | CLUSTER ADDSLOTS | |
| SCAN | CLUSTER BUMPEPOCH | |
| SCARD | CLUSTER COUNT-FAILURE-REPORTS | |
| SDIFF | CLUSTER COUNTKEYSINSLOT | |
| SDIFFSTORE | CLUSTER DELSLOTS | |
| SELECT | CLUSTER FAILOVER | |
| SETBIT | CLUSTER FLUSHSLOTS | |
| SETEX | CLUSTER FORGET | |
| SETNX | CLUSTER GETKEYSINSLOT | |
| SETRANGE | CLUSTER INFO | |
| SHUTDOWN | CLUSTER KEYSLOT | |
| SINTER | CLUSTER MEET | |
| SINTERSTORE | CLUSTER MYID | |
| SISMEMBER | CLUSTER NODES | |
| SLOWLOG | CLUSTER REPLICAS | |
| SMOVE | CLUSTER REPLICATE | |
| SPOP | CLUSTER RESET | |
| SRANDMEMBER | CLUSTER SAVECONFIG | |
| SSCAN | CLUSTER SET-CONFIG-EPOCH | |
| STRLEN | CLUSTER SETSLOT | |
| SUNION | CLUSTER SLAVES | |
| SUNIONSTORE | CLUSTER SLOTS | |
| TIME | COMMAND | |
| UNLINK [1] | COMMAND COUNT | |
| COMMAND GETKEYS | ||
| COMMAND INFO | ||
| CONFIG GET | ||
| CONFIG RESETSTAT | ||
| CONFIG REWRITE | ||
| CONFIG SET | ||
| DEBUG OBJECT | ||
| DEBUG SEGFAULT | ||
| DISCARD | ||
| DUMP | ||
| EVAL | ||
| EVALSHA | ||
| EXEC | ||
| GEOADD | ||
| GEODIST | ||
| GEOHASH | ||
| GEOPOS | ||
| GEORADIUS | ||
| GEORADIUSBYMEMBER | ||
| LASTSAVE | ||
| LATENCY DOCTOR | ||
| LATENCY GRAPH | ||
| LATENCY HELP | ||
| LATENCY HISTORY | ||
| LATENCY LATEST | ||
| LATENCY RESET | ||
| LINDEX | ||
| LINSERT | ||
| LLEN | ||
| LOLWUT | ||
| LPOP | ||
| LPOS | ||
| LPUSH | ||
| LPUSHX | ||
| LRANGE | ||
| LREM | ||
| LSET | ||
| LTRIM | ||
| MEMORY DOCTOR | ||
| MEMORY HELP | ||
| MEMORY MALLOC-STATS | ||
| MEMORY PURGE | ||
| MEMORY STATS | ||
| MEMORY USAGE | ||
| MIGRATE | ||
| MODULE LIST | ||
| MODULE LOAD | ||
| MODULE UNLOAD | ||
| MONITOR | ||
| MOVE | ||
| MULTI | ||
| OBJECT | ||
| PFADD | ||
| PFCOUNT | ||
| PFMERGE | ||
| PSYNC | ||
| PUBSUB | ||
| RANDOMKEY | ||
| READONLY | ||
| READWRITE | ||
| RENAMENX | ||
| REPLICAOF | ||
| RESTORE | ||
| ROLE | ||
| RPOP | ||
| RPOPLPUSH | ||
| RPUSH | ||
| RPUSHX | ||
| SAVE | ||
| SCRIPT DEBUG | ||
| SCRIPT EXISTS | ||
| SCRIPT FLUSH | ||
| SCRIPT KILL | ||
| SCRIPT LOAD | ||
| SLAVEOF | ||
| SORT | ||
| STRALGO LCS | ||
| SWAPDB | ||
| SYNC | ||
| TOUCH | ||
| UNWATCH | ||
| WAIT | ||
| WATCH | ||
| XACK | ||
| XADD | ||
| XCLAIM | ||
| XDEL | ||
| XGROUP | ||
| XINFO | ||
| XLEN | ||
| XPENDING | ||
| XRANGE | ||
| XREAD | ||
| XREADGROUP GROUP | ||
| XREVRANGE | ||
| XTRIM | ||
| ZADD | ||
| ZCARD | ||
| ZCOUNT | ||
| ZINCRBY | ||
| ZINTERSTORE | ||
| ZLEXCOUNT | ||
| ZPOPMAX | ||
| ZPOPMIN | ||
| ZRANGE | ||
| ZRANGEBYLEX | ||
| ZRANGEBYSCORE | ||
| ZRANK | ||
| ZREM | ||
| ZREMRANGEBYLEX | ||
| ZREMRANGEBYRANK | ||
| ZREMRANGEBYSCORE | ||
| ZREVRANGE | ||
| ZREVRANGEBYSCORE | ||
| ZREVRANK | ||
| ZSCAN | ||
| ZSCORE | ||
| ZUNIONSTORE | ||
NOTES:
[1] - UNLINK is implemented as a synonym to DEL and does not unlink asynchronously.