MySQL Manchester TT - 5.7 Whats new

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What’s New in MySQL 5.7


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MySQL 5.7 is GA!

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Enhanced InnoDB: faster online & bulk load operaNons

ReplicaNon Improvements (incl. mulN-‐source, mulN-‐threaded slaves...)

New OpNmizer Cost Model: greater user control & beêr query performance

Performance Schema Improvements

MySQL SYS Schema

Performance & Scalability Manageability

3 X Faster than MySQL 5.6

Improved Security: safer iniNalizaNon, setup & management

NaNve JSON Support

And many more new features and enhancements. Learn more at: dev.mysql.com


MySQL 5.7 Sysbench Benchmark: SQL Point Selects 3x Faster than MySQL 5.6

4x Faster than MySQL 5.5 1,600,000 QPS

0 200,000 400,000 600,000 800,000

1,000,000 1,200,000 1,400,000 1,600,000 1,800,000

8 16 32 64 128 256 512 1,024

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MySQL 5.7: Sysbench OLTP Read Only (SQL Point Selects)

MySQL 5.7

MySQL 5.6

MySQL 5.5

Intel(R) Xeon(R) CPU E7-‐8890 v3 4 sockets x 18 cores-‐HT (144 CPU threads) 2.5 Ghz, 512GB RAM Linux kernel 3.16

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82% Faster than MySQL 5.6

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20,000

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100,000

120,000

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Conn

ect / se

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MySQL 5.7: Sysbench OLTP Read Only

MySQL 5.7

MySQL 5.6

MySQL 5.5


100K Connect / Sec

MySQL 5.7 Sysbench Benchmark: ConnecNon Requests

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MySQL 5.7 Sysbench Benchmark: OLTP Read Only 3x Faster than MySQL 5.6

6x Faster than MySQL 5.5

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200,000

400,000

600,000

800,000

1,000,000

1,200,000

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ries p

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MySQL 5.7: Sysbench OLTP Read Only

MySQL 5.7

MySQL 5.6

MySQL 5.5


~ 1,000,000 QPS

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MySQL 5.7 Sysbench Benchmark: OLTP Read Write 1.5x Faster than MySQL 5.6

3x Faster than MySQL 5.5

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200,000

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500,000

600,000

700,000

8 16 32 64 128 256 512 1,024

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ries p

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MySQL 5.7: Sysbench OLTP Read Write

MySQL 5.7

MySQL 5.6

MySQL 5.5


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•  OpNmizer and Parser refactoring –  Readability, maintainability and stability –  Separate parsing, opNmizing, execuNon stages –  Easier feature addiNons, with lessened risk

•  New hint framework –  Easier to manage – With support for addiNonal new hints

•  Improved JSON EXPLAIN

•  EXPLAIN for running thread

•  New Cost based OpNmizer –  Easier to extend –  Configurable and tunable •  mysql.server_cost and mysql.engine_cost tables •  API for where data resides: on disk or in cache

•  InnoDB for internal temp tables

•  Beêr ONLY_FULL_GROUP_BY mode

•  Many specific new opNmizaNons

•  Generated Columns

MySQL 5.7: OpNmizer Improvements

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Queries execute faster, while using less CPU and disk space!


MySQL 5.7: Query Rewrite Plugin

• New pre and post parse query rewrite APIs – Users can write their own plug-‐ins • Provides a post-‐parse query plugin – Rewrite problemaNc queries without the need to make applicaNon changes – Add hints – Modify join order – Many more …

•  Improve problemaNc queries from ORMs, third party apps, etc •  Eliminates many legacy use cases for proxies

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MySQL 5.7: OpNmizer -‐ Cost Info in JSON EXPLAIN •  Expanded JSON EXPLAIN – Now includes all available cost info – Used for Visual Explain In MySQL Workbench

{ "query_block": { "select_id": 1, "cost_info": { "query_cost": "200.40" }, "table": { "table_name": "nicer_but_slower_film_list", "access_type": "ALL", "rows_examined_per_scan": 992, "rows_produced_per_join": 992, "filtered": 100, "cost_info": { "read_cost": "2.00", "eval_cost": "198.40", "prefix_cost": "200.40", "data_read_per_join": "852K" }, "used_columns": [ "FID", "title", "description", "category", "price", "length", "rating", "actors" ], ...

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MySQL 5.7: JSON • NaNve JSON data type – NaNve internal binary format for efficient processing & storage

• Built-‐in JSON funcNons – Allowing you to efficiently store, search, update, and manipulate Documents

•  JSON Comparator – Allows for easy integraNon of Document data within your SQL queries

•  Indexing of Documents using Generated Columns – InnoDB supports indexes on both stored and virtual Generated Columns – New expression analyzer automaNcally uses the best “funcNonal” index available

• New inline syntax for easy SQL integraNon 11


Memory InstrumentaHon •  Aggregates staNsNcs by –  Type of memory used (caches, internal buffers, …)

–  Thread/account/user/host indirectly performing the memory operaNon

•  A^ributes include – Memory used (bytes) –  OperaNon counts –  High/Low Water Marks

Statement InstrumentaHon •  Stored Procedures •  Stored FuncNons •  Prepared Statements

•  TransacNons

AddiHonal InformaHon •  ReplicaNon slave status •  MDL lock instrumentaNon

•  Status and variables per thread

•  Server stage tracking •  Track long running SQL •  Improved configuraNon and ease-‐of-‐use

•  All while reducing total footprint and overhead

MySQL 5.7: Performance Schema

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MySQL 5.7: SYS Schema Helper objects for DBAs, Developers and OperaHons staff • Helps simplify DBA / Ops tasks -‐ Monitor server health, user, host staNsNcs -‐ Spot, diagnose, and tune performance issues •  Easy to understand views with insights into -‐ IO hot spots, Locking, Costly SQL statements -‐ Schema, table and index staNsNcs •  SYS is similar to -‐ Oracle V$ catalog views -‐ Microsot SQL DMVs (Dynamic Mgmnt Views)

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•  Replaced custom code with Boost.Geometry –  For spaNal calculaNons –  For spaNal analysis –  Enabling full OGC compliance – We’re also Boost.Geometry contributors!

•  InnoDB R-‐tree based spaNal indexes –  Full ACID, MVCC, & transacNonal support –  Index records contain minimum bounding box

•  GeoHash •  GeoJSON •  Helper funcNons such as ST_Distance_Sphere() and ST_MakeEnvelope()

MySQL 5.7: GIS Improvements

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•  NaNve ParNNoning –  Eliminates previous limitaNons –  Eliminates resource usage problems –  Transportable tablespace support

•  NaNve Full-‐Text Search –  Including full CJK support!

•  NaNve SpaNal Indexes •  Transparent page compression

•  Support for 32K and 64K pages –  Use with transparent page compression for very high compression raNos

•  General TABLESPACE support –  Store mulNple tables in user defined shared tablespaces

•  Support for MySQL Group ReplicaNon –  High priority transacNons

•  Improved support for cache preloading –  Load your hoêst data loaded at startup

•  Configurable fill-‐factor –  Allows for improvements in storage footprint

•  Improved bulk-‐data load performance

•  Resize the InnoDB Buffer Pool online

MySQL 5.7: InnoDB Improvements

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MySQL 5.7: InnoDB Compression Thank you, SanDisk Fusion-‐io

•  Transparent Page Level Compression – Happens transparently in background threads – Managed enNrely within the IO layer – Uses sparse file and "hole punching" support in OS kernels and File Systems

• Reduces IO – Improves MySQL performance – Improves storage efficiency – Reduces write cycles, thus increasing SSD lifespan

• Applies to all InnoDB data, including the system tablespace and UNDO logs

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•  AES 256 EncrypNon now the default •  Password rotaNon policies –  Can be set globally, and at the user level

•  Deployment: enable secure unaênded install by default –  Random password set on install –  Remove anonymous accounts –  Deployment without test account, schema, demo files

•  Easier instance iniNalizaNon and setup: mysqld –iniNalize

•  New detecNon and support for systemd

•  SSL –  Enabled by default –  Auto-‐detecNon of exisNng keys and certs –  Auto generaNon of keys and certs when needed –  New helper uNlity: mysql_ssl_rsa_setup –  New -‐-‐require_secure_transport opNon to prevent insecure communicaNons

–  Added SSL support to binary log clients

•  Extended Proxy User Support –  Added Built-‐in AuthenNcaNon Plugins support for Proxy Users

–  Allows mulNple users to share a single set of managed privileges

MySQL 5.7: Security Improvements

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MySQL 5.7: Server-‐Side Statement Timeouts Thank you Davi Arnaut!

•  Server side statement Nmeouts – Global for server, per session, or for individual SELECT statements

•  Expanded to Windows and Solaris, restricted by removing USER opNon

SELECT /*+ MAX_EXECUTION_TIME(1000) */ * FROM my_table;

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•  GTID enhancements –  On-‐line, phased deployment of GTIDs –  Binary logging on slave now opNonal

•  Enhanced Semi-‐synchronous replicaNon – Write guaranteed to be received by slave before being observed by clients of the master

–  OpNon to wait on Acks from mulNple slaves

•  MulN-‐Source ReplicaNon –  Consolidate updates from mulNple Masters into one Slave

•  Dynamic slave filters

•  8-‐10x Faster slave throughput –  Oten removes slave as a bo^leneck; keep pace with master with 8+ slave threads

–  OpNon to preserve Commit order –  AutomaNc slave transacNon retries

MySQL 5.7: ReplicaNon Improvements

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0%#

50%#

100%#

150%#

200%#

250%#

1# 8# 24# 48#Slave#Threads#

Slave#throughput#vs.#96#Thread#Master#


MySQL 5.7: Enabling GTIDs

Check CompaNbility

•  Server reports any incompaNble operaNons

Generate GTIDs

• All servers generate GTIDs but don’t depend on them

Brief wait

• Allow all legacy events to work through all servers

GTIDs Enabled

• All Servers generate and expect GTIDs only

•  Full benefits of GTIDs available

Phased, On-‐line IntroducHon

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• MulN-‐Source ReplicaNon – Consolidate updates from mulNple Masters into one Slave •  Consolidated view of all shards • More flexible topologies •  Centralized point for backups

– CompaNble with Semi-‐Sync ReplicaNon & enhanced MTS

• Performance Schema tables for monitoring slave • Online OperaNons: Dynamic ReplicaNon Filters, switch master

MySQL 5.7: ReplicaNon Improvements

Slave

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Binlog

Master 1

Binlog

Master 2

…

…

Binlog

Master N

IO 1

Relay 1

Coordinator

W1 W2 … WX

IO 2

Relay 2

Coordinator

W1 W2 … WX

…

…

Coordinator

W1 W2 … WX

IO N

Relay N

Coordinator

W1 W2 … WX


•  Support for tracking session transacNon state – This offers beêr support for load balancing across nodes

•  Server Version Tokens – This offers beêr support for caching in distributed systems

• New data migraNon tool : mysqlpump – Improves data migraNon and sharding operaNons between nodes

•  Improved ReplicaNon opNons in HA groups – Improved slave performance with clock based parallelizaNon – Loss-‐less Semi-‐Sync ReplicaNon plugin supporNng mulN-‐node acks – Synchronous replicaNon (Group ReplicaNon plugin now in Labs)

MySQL 5.7: High Availability Improvements

Read-‐slaves

HA group

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•  AcNve/AcNve Update Anywhere –  Conflict detecNon and resoluNon (transacNon rollback)

–  OpNmisNc State Machine ReplicaNon

•  AutomaNc group membership management and failure detecNon –  No need for server fail-‐over –  ElasNc scale out/in –  No single point of failure –  AutomaNc reconfiguraNon

•  Well integrated –  InnoDB –  GTID-‐based replicaNon –  PERFORMANCE_SCHEMA

MySQL Group ReplicaNon

ApplicaNon

MySQL Nodes ReplicaNon Plugin

API

MySQL Server

Group Comms

labs.mysql.com

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• ConnecNon and TransacNon rouNng •  Transparently improve your MySQL apps – Transparent MySQL Fabric support •  Transparent HA •  Transparent Sharding

– Transparent support for MySQL Group ReplicaNon clusters – Transparent support for custom clusters and HA setups

•  Easily extendable using plugin APIs • Many new plugins to come – AggregaNon, Binary Log, Load Balancing, …

MySQL Router

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MySQL Repos •  DistribuNons –  Oracle, Red Hat, CentOS –  Fedora –  Ubuntu, Debian –  SUSE

•  Official MySQL Docker Image from Oracle

•  Coming Soon –  Preconfigured Containers –  Improved support for popular DevOps deployment tools

h^ps://dev.mysql.com/downloads/repo

MySQL on GitHub •  Git for MySQL Engineering –  Fast, flexible and great for a distributed team –  Great tooling –  Large and vibrant community

•  GitHub for MySQL Community –  Easy and fast code availability to the community and to downstream projects

–  Pull Requests h^ps://github.com/mysql

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Technology

MySQL Manchester TT - 5.7 Whats new