2024數(shù)據庫TiDB 技術演進及生態(tài)發(fā)展

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Redhat300 MongoDB90 ElasticSearch60 Cloudera20 Confluent（Kafka）D1.25億美元融資 Databricks（Spark）E2.5億美元融資 RedisLabsE6000萬美元融資 CockRoachLabsC5500萬美元融資 PingCAP（TiDB）C5000萬美元融資立勢-TiDB回歸到2015，重新設計一個數(shù)據庫，我SQL（ACIDMySQL+->TiDBCostMySQLDrivers(e.g.MySQLDrivers(e.g.MySQL APIPhysicalAPIPhysicalPlanKV按照等長大小策略自動分裂分片（96

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96MBRegion1Region1Region1Region1Region1Region1Region2Region2leader4.0followerTiKVTiKVNodeStoreTiKVNodeStoreTiKVNodeStoreLet’ssay,theamountofdatawithinTiKVNodeStoreTiKVNodeStoreTiKVNodeStoreLet’ssay,theamountofdatawithinRartTiKVTiKVNodeStore1TiKVNodeStoreTiKVNodeStoreRegion1willbesplitintotwosmaller(theleaderofRegion1sendsaSplitcommandasaspeciallogtoitsreplicasviatheRaftprotocol.OncetheSplitcommandissuccessfullycommittedbyRaft,thatmeanstheregionhasbeensuccessfullysplit.)TiKVTiKVNodeStore1TiKVNodeStoreTiKVNodeStoreTiKVNodeStoreTiKVTiKVNodeStore1TiKVNodeStoreTiKVNodeStoreTiKVNodeStoreTiKVTiKVNodeStore1TiKVNodeStoreTiKVNodeStoreTiKVNodeStorePD:“OK,Node1,deleteyourlocalreplicaofRegion分片數(shù)量、Leader

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RegionHTAPPD全局受時~4MtimestampsTiKV節(jié)點分配單獨區(qū)域存放鎖信息（CFlock）GooglePercolatorTiKVKV也支持悲觀事務模型（3.0+版本默認隔離級別:SnapshotTiDBMySQLSQL支持，DML&tidb-TiKVtidb-TiKVPhysicalPlanCostRBO&TOP-N、TiDB3.0SQLTitanvalueWiscKey優(yōu)化器準確性提升，快速統(tǒng)計信息等：Fast/Increamental悲觀鎖：PessimisticLockSQL執(zhí)行計劃管理與綁定：SQLPlan4.5x提升TPC-C1.5x提升SysbenchHTAP我們認為，HTAP是針對業(yè)務來說，DB

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retrievedatafrom RaftLearnerRaftLearnerRaftLearnerMVCC提供強一致LabelAP/TPRaftETL3010Query100%HTAPTiDBGithub20000stars,NewSQLGithub：400contributors2018年度全球最佳開源軟件獎（byCNCFKey-Value數(shù)據庫項目CNCFBigdataCNCF基金會統(tǒng)計的旗下開