{ "componentChunkName": "component---src-templates-issues-tsx", "path": "/issues/553", "result": {"data":{"issuesJson":{"id":"81d9b40b-71a8-5c35-a108-b34ae025ea98","title":"Tencent/Tendis: Tendis 是一个完全兼容Redis协议的高性能分布式存储系统。","number":553,"bodyHTML":"
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ReposTencent/Tendis
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\"tendis\"

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Tendis is a high-performance distributed storage system which is fully compatible with the Redis protocol. 中文文档

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Table of Contents

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Introduction

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Tendis is a high-performance distributed storage system which is fully compatible with the Redis protocol. It uses RocksDB as the storage engine, and all data is stored to disks through RocksDB. Users can access Tendis using a Redis client, and the application hardly needs to be changed. In addition, Tendis supports storage capacity far exceeding memory, which can greatly reduce user storage costs.

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Similar to Redis clusters, Tendis uses a decentralized distributed solution. The gossip protocol is used for communication between nodes, and all nodes in a cluster can be routed to the correct node when a user accesses. Cluster nodes support automatic discovery of other nodes, detect faulty nodes, and ensure the application is almost not affected when the master node failed.

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Features

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Get Started

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Requirements

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Build

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$ git clone https://github.com/Tencent/tendis.git --recursive\n$ git submodule update --init --recursive\n$ mkdir build\n$ cd build & cmake ..\n$ make -j12\n
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Run and Play

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$ ./build/bin/tendisplus tendisplus.conf\n
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Connect to the server via redis-cli

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$ redis-cli -p 51002\n
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TEST

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You can make some change to the code and make sure the following test script pass.

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$ sh ./testall.sh\n
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Performance

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Hardware spec

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CPU:2.50 GHz,48 core\nDISK:NVMe SSD\nMEM:192GB\n
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Benchmarks and QPS numbers

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tendisplus: workers = 56

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./memtier_benchmark -t 20 -c 50 -s 127.0.0.1 -p 51002 --distinct-client-seed --command=\"set __key__ __data__\" --key-prefix=\"kv_\" --key-minimum=1 --key-maximum=500000000 --random-data --data-size=128 --test-time=1800\n./memtier_benchmark -t 20 -c 50 -s 127.0.0.1 -p 51002 --distinct-client-seed --command=\"get __key__\" --key-prefix=\"kv_\" --key-minimum=1 --key-maximum=500000000 --test-time=1800\n./memtier_benchmark -t 20 -c 50 -s 127.0.0.1 -p 51002 --distinct-client-seed --command=\"incr __key__\" --key-prefix=\"int_\" --key-minimum=1 --key-maximum=1000000 --test-time=1800\n./memtier_benchmark -t 20 -c 50 -s 127.0.0.1 -p 51002 --distinct-client-seed --command=\"lpush __key__ __data__\" --key-prefix=\"list_\" --key-minimum=1 --key-maximum=1000000 --random-data --data-size=128 --test-time=1800\n./memtier_benchmark -t 20 -c 50 -s 127.0.0.1 -p 51002 --distinct-client-seed --command=\"sadd __key__ __data__\" --key-prefix=\"set_\" --key-minimum=1 --key-maximum=1000000 --random-data --data-size=128 --test-time=1800\n./memtier_benchmark -t 20 -c 50 -s 127.0.0.1 -p 51002 --distinct-client-seed --command=\"zadd __key__ __key__ __data__\" --key-prefix=\"\" --key-minimum=1 --key-maximum=1000000 --random-data --data-size=128 --test-time=1800\n./memtier_benchmark -t 20 -c 50 -s 127.0.0.1 -p 51002 --distinct-client-seed --command=\"hset __key__ __data__ __data__\" --key-prefix=\"hash_\" --key-minimum=1 --key-maximum=1000000 --random-data --data-size=128 --test-time=1800\n
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\"image.png\"

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latency:

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SET    1.6ms    99%\nSET    2.2ms    99.9%\nSET    6.9ms    99.99%\nSET    9.4ms    100.00%\n
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QPS on different payload

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tendisplus: workers = 56

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./memtier_benchmark -t 20 -c 50 -s 127.0.0.1 -p 51002 --distinct-client-seed --command=\"set __key__ __data__\" --key-prefix=\"kv_\" --command-key-pattern=R --random-data --data-size=128 --test-time=1800\n./memtier_benchmark -t 20 -c 50 -s 127.0.0.1 -p 51002 --distinct-client-seed --command=\"get __key__\" --key-prefix=\"kv_\" --command-key-pattern=R --test-time=1800\n
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\"image.png\"

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we test set for half an hour, and then test get key half an hour. because the data is not big enough, most of the data is in memory, so the get qps for different payload is nearly the same.

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Contributing

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For more information regarding contributing issues or pull requests, checkout CONTRIBUTING

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Support

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Checkout support for FAQs or join our discussion groups.

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License

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Tendis is licensed under the GNU General Public License Version 3.0. Copyright and license information can be found in the file LICENSE.txt.

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