MySQL 5.7 - What's new, How to upgrade and Document Store
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MySQL 5.7 provides performance improvements, new features, and enhancements over previous versions. Key highlights include: - MySQL 5.7 is generally 3x faster than MySQL 5.6 based on benchmarks of SQL point selects, connection requests, OLTP read-only, and OLTP read-write workloads. - New features include native JSON support, query rewrite plugins, cost-based optimizer improvements, and a new SYS schema to help DBAs and operations staff. - Additional enhancements include replication improvements, security upgrades, and Performance Schema improvements for better memory and statement instrumentation.
![Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
MySQL 5.7: Optimizer - 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"
],
...
{
"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"
],
...
13](https://image.slidesharecdn.com/mysql5-160622191239/85/MySQL-5-7-What-s-new-How-to-upgrade-and-Document-Store-13-320.jpg)
![Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
Why can you not…
• Have both schema-less and schema in the same technology stack?
• One that checks all the boxes of all stakeholders:
48
Developers:
[ x ] Schemaless
[ x ] Rapid Prototyping/Simpler APIs
[ x ] Document Model
Operations:
[ x ] Performance Management/Visibility
[ x ] Robust Replication, Backup, Restore
[ x ] Comprehensive Tooling Ecosystem
Business Owner:
[ x ] Don’t lose my data = ACID transactions
[ x ] Capture all my data = Extensible/Schemaless
[ x ] Products On Schedule/Time to Market = Rapid Development](https://image.slidesharecdn.com/mysql5-160622191239/85/MySQL-5-7-What-s-new-How-to-upgrade-and-Document-Store-48-320.jpg)
![Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 54
tomas@localhost $ mysqlsh uri root@localhost/test
Creating an X Session to root@localhost:33060/test
Enter password:
Default schema `test` accessible through db.
…
Currently in JavaScript mode. Use sql to switch to SQL mode and execute
queries.
mysqljs> db.createCollection("posts");
<Collection:posts>
mysqljs> db.posts.add({"title":"Hello World", "text":"First post!"})
Query OK, 1 item affected (0.03 sec)
mysqljs> db.posts.find("title = 'Hello World'").sort(["title"]);
[
{
"_id": "8202bda28206e611140b3229389b6526",
"text": "First post!",
"title": "Hello World"
}
]
1 document in set (0.01 sec)](https://image.slidesharecdn.com/mysql5-160622191239/85/MySQL-5-7-What-s-new-How-to-upgrade-and-Document-Store-54-320.jpg)
MySQL 5.7 - What's new, How to upgrade and Document Store
- 1. Copyright © 2016 Oracle and/or its affiliates. All rights reserved. | MySQL 5.7 News Abel Flórez Technical Account Manager [email protected]
- 2. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Safe Harbor Statement The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle. 2
- 3. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Agenda News in MySQL 5.7 Upgrading to MySQL 5.7 MySQL Document Store 1 2 3 3
- 4. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7 is GA! 4 Enhanced InnoDB: faster online & bulk load operations Replication Improvements (incl. multi- source, multi-threaded slaves...) New Optimizer Cost Model: greater user control & better query performance Performance Schema Improvements MySQL SYS Schema Performance & Scalability Manageability 3 X Faster than MySQL 5.6 Improved Security: safer initialization, setup & management Native JSON Support And many more new features and enhancements. Learn more at: dev.mysql.com
- 5. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7 Sysbench Benchmark: SQL Point Selects 3x Faster than MySQL 5.6 4x Faster than MySQL 5.5 1,600,000 QPS 8 16 32 64 128 256 512 1,024 0 200,000 400,000 600,000 800,000 1,000,000 1,200,000 1,400,000 1,600,000 1,800,000 MySQL 5.7:Sysbench OLTP Read Only (SQL Point Selects) MySQL 5.7 MySQL 5.6 MySQL 5.5 Connections QueriesperSecond 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 5
- 6. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 82% Faster than MySQL 5.6 8 16 32 64 128 256 512 1,024 0 20,000 40,000 60,000 80,000 100,000 120,000 MySQL 5.7:Sysbench OLTP Read Only MySQL 5.7 MySQL 5.6 MySQL 5.5 Connections Connect/sec 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 100K Connect / Sec MySQL 5.7 Sysbench Benchmark: Connection Requests 6
- 7. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7 Sysbench Benchmark: OLTP Read Only 3x Faster than MySQL 5.6 6x Faster than MySQL 5.5 8 16 32 64 128 256 512 1,024 0 200,000 400,000 600,000 800,000 1,000,000 1,200,000 MySQL 5.7:Sysbench OLTP Read Only MySQL 5.7 MySQL 5.6 MySQL 5.5 Connections QueriesperSecond 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 ~ 1,000,000 QPS 7
- 8. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7 Sysbench Benchmark: OLTP Read Write 1.5x Faster than MySQL 5.6 3x Faster than MySQL 5.5 8 16 32 64 128 256 512 1,024 0 100,000 200,000 300,000 400,000 500,000 600,000 700,000 MySQL 5.7:Sysbench OLTP Read Write MySQL 5.7 MySQL 5.6 MySQL 5.5 Connections QueriesperSecond 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 8
- 9. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | • Optimizer and Parser refactoring – Readability, maintainability and stability – Separate parsing, optimizing, execution stages – Easier feature additions, with lessened risk • New hint framework – Easier to manage – With support for additional new hints • Improved JSON EXPLAIN • EXPLAIN for running thread • New Cost based Optimizer – 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 • Better ONLY_FULL_GROUP_BY mode • Many specific new optimizations • Generated Columns MySQL 5.7: Optimizer Improvements 9 Queries execute faster, while using less CPU and disk space!
- 10. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Optimizer Cost Model: Performance Improvements DBT-3 (Size Factor 10, CPU bound) Q3 Q7 Q8 Q9 Q12 0 20 40 60 80 100 MySQL 5.6 MySQL 5.7 5 out of 22 queries get a much improved query plan (others remain the same) Executiontimerelativeto5.6(%) 10
- 11. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Q2 Q18 0 20 40 60 80 100 CPU bound 5.6 5.7 Executiontimerelativeto5.6(%)Optimizer Cost Model: Performance Improvements DBT-3 (Size Factor 10) 2 out of 22 queries get a significantly improved query plan (others remain the same) Q2 Q18 0 20 40 60 80 100 Disk bound 5.6 5.7 Executiontimerelativeto5.6(%) 11
- 12. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 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 problematic queries without the need to make application changes – Add hints – Modify join order – Many more … • Improve problematic queries from ORMs, third party apps, etc • Eliminates many legacy use cases for proxies 12
- 13. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7: Optimizer - 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" ], ... { "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" ], ... 13
- 14. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7: JSON • Native JSON data type – Native internal binary format for efficient processing & storage • Built-in JSON functions – Allowing you to efficiently store, search, update, and manipulate Documents • JSON Comparator – Allows for easy integration 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 automatically uses the best “functional” index available • New inline syntax for easy SQL integration • 14
- 15. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | • 5.7 supports functions to CREATE, SEARCH, MODIFY and RETURN JSON values: MySQL 5.7: JSON Functions 15 JSON_APPEND() JSON_ARRAY_INSERT() JSON_ARRAY() JSON_CONTAINS_PATH() JSON_CONTAINS() JSON_DEPTH() JSON_EXTRACT() https://dev.mysql.com/doc/refman/5.7/en/json-functions.html • 5.7 supports functions to CREATE, SEARCH, MODIFY and RETURN JSON values: JSON_INSERT() JSON_KEYS() JSON_LENGTH() JSON_MERGE() JSON_OBJECT() JSON_QUOTE() JSON_REMOVE() JSON_REPLACE() JSON_SEARCH() JSON_SET() JSON_TYPE() JSON_UNQUOTE() JSON_VALID()
- 16. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7: JSON and Text Datatype Comparison # With feature column as JSON type SELECT DISTINCT feature->"$.type" as json_extract FROM features; +--------------+ | json_extract | +--------------+ | "Feature" | +--------------+ 1 row in set (1.25 sec) Unindexed traversal of 206K documents # With feature column as TEXT type SELECT DISTINCT feature->"$.type" as json_extract FROM features; +--------------+ | json_extract | +--------------+ | "Feature" | +--------------+ 1 row in set (12.85 sec) Explanation: Binary format of JSON type is very efficient at searching. Storing as TEXT performs over 10x worse at traversal. 16
- 17. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7: Functional Indexes with JSON 17 ALTER TABLE features ADD feature_type VARCHAR(30) AS (JSON_UNQUOTE(feature- >'$.type')); Query OK, 0 rows affected (0.01 sec) Records: 0 Duplicates: 0 Warnings: 0 ALTER TABLE features ADD INDEX (feature_type); Query OK, 0 rows affected (0.73 sec) Records: 0 Duplicates: 0 Warnings: 0 SELECT DISTINCT feature_type FROM features; +--------------+ | feature_type | +--------------+ | "Feature" | +--------------+ 1 row in set (0.06 sec) From table scan on 206K documents to index scan on 206K materialized values Meta data change only (FAST). Does not need to touch table.. Creates index only, does not touch row data. Down from 1.25 sec to 0.06 sec Create table features ( id int primary key, feature json )
- 18. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Memory Instrumentation • Aggregates statistics by – Type of memory used (caches, internal buffers, …) – Thread/account/user/host indirectly performing the memory operation • Attributes include – Memory used (bytes) – Operation counts – High/Low Water Marks Statement Instrumentation • Stored Procedures • Stored Functions • Prepared Statements • Transactions Additional Information • Replication slave status • MDL lock instrumentation • Status and variables per thread • Server stage tracking • Track long running SQL • Improved configuration and ease-of-use • All while reducing total footprint and overhead MySQL 5.7: Performance Schema 18
- 19. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7: SYS Schema Helper objects for DBAs, Developers and Operations staf • Helps simplify DBA / Ops tasks - Monitor server health, user, host statistics - Spot, diagnose, and tune performance issues • Easy to understand views with insights into - IO hot spots, Locking, Costly SQL statements - Schema, table and index statistics • SYS is similar to - Oracle V$ catalog views - Microsoft SQL DMVs (Dynamic Mgmnt Views) 19
- 20. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | • Replaced custom code with Boost.Geometry – For spatial calculations – For spatial analysis – Enabling full OGC compliance – We’re also Boost.Geometry contributors! • InnoDB R-tree based spatial indexes – Full ACID, MVCC, & transactional support – Index records contain minimum bounding box • GeoHash • GeoJSON • Helper functions such as ST_Distance_Sphere() and ST_MakeEnvelope() MySQL 5.7: GIS Improvements 20
- 21. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | • Native Partitioning – Eliminates previous limitations – Eliminates resource usage problems – Transportable tablespace support • Native Full-Text Search – Including full CJK support! • Native Spatial Indexes • Transparent page compression • Support for 32K and 64K pages – Use with transparent page compression for very high compression ratios • General TABLESPACE support – Store multiple tables in user defined shared tablespaces • Support for MySQL Group Replication – High priority transactions • Improved support for cache preloading – Load your hottest 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 21
- 22. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7: InnoDB Compression Thank you, SanDisk Fusion-io • Transparent Page Level Compression – Happens transparently in background threads – Managed entirely 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 22
- 23. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | • AES 256 Encryption now the default • Password rotation policies – Can be set globally, and at the user level • Deployment: enable secure unattended install by default – Random password set on install – Remove anonymous accounts – Deployment without test account, schema, demo files • Easier instance initialization and setup: mysqld –initialize • New detection and support for systemd • SSL – Enabled by default – Auto-detection of existing keys and certs – Auto generation of keys and certs when needed – New helper utility: mysql_ssl_rsa_setup – New --require_secure_transport option to prevent insecure communications – Added SSL support to binary log clients • Extended Proxy User Support – Added Built-in Authentication Plugins support for Proxy Users – Allows multiple users to share a single set of managed privileges MySQL 5.7: Security Improvements 23
- 24. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7: Server-Side Statement Timeouts Thank you Davi Arnaut! • Server side statement timeouts – Global for server, per session, or for individual SELECT statements – • Expanded to Windows and Solaris, restricted by removing USER option SELECT /*+ MAX_EXECUTION_TIME(1000) */ * FROM my_table; 24
- 25. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | • GTID enhancements – On-line, phased deployment of GTIDs – Binary logging on slave now optional • Enhanced Semi-synchronous replication – Write guaranteed to be received by slave before being observed by clients of the master – Option to wait on Acks from multiple slaves • Multi-Source Replication – Consolidate updates from multiple Masters into one Slave • Dynamic slave filters • • 8-10x Faster slave throughput – Often removes slave as a bottleneck; keep pace with master with 8+ slave threads – Option to preserve Commit order – Automatic slave transaction retries – – MySQL 5.7: Replication Improvements 25 0% 50% 100% 150% 200% 250% 1 8 24 48 SlaveThreads Slavethroughputvs.96ThreadMaster
- 26. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | • Multi-Source Replication – Consolidate updates from multiple Masters into one Slave • Consolidated view of all shards • More flexible topologies • Centralized point for backups – Compatible with Semi-Sync Replication & enhanced MTS • Performance Schema tables for monitoring slave • Online Operations: Dynamic Replication Filters, switch master MySQL 5.7: Replication Improvements Slave 26 BinlogBinlog Master 1Master 1 BinlogBinlog Master 2Master 2 …… …… BinlogBinlog Master NMaster N IO 1IO 1 Relay 1Relay 1 CoordinatorCoordinator W1W1 W2W2 …… WXWX IO 2IO 2 Relay 2Relay 2 CoordinatorCoordinator W1W1 W2W2 …… WXWX …… …… CoordinatorCoordinator W1W1 W2W2 …… WXWX IO NIO N Relay NRelay N CoordinatorCoordinator W1W1 W2W2 …… WXWX
- 27. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | • Connection and Transaction routing • Transparently improve your MySQL apps – Transparent support for MySQL Group Replication clusters – Transparent support for custom clusters and HA setups • Easily extendable using plugin APIs • Many new plugins to come – Aggregation, Binary Log, Load Balancing, … MySQL Router 27
- 28. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Extensible Architecture MySQL Router 28Copyright © 2016, Oracle and/or its affiliates. All rights reserved App Servers with MySQL Router Binary Log? More plugins to come… ??? Aggregation? MySQL HA cluster Harness – Logging, thread handling ; config, service, and plugin management Core – Connection routing, transaction routing Plugins – Fabric cache, Group Replication Load Balance?
- 29. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL Workbench 6.3 • Performance Dashboard – Performance Schema Reports & Graphs • Visual Explain • GIS Viewer • Migration – New: Microsoft Access – Microsoft SQL Server, Sybase, PostgreSQL, SQLite • MySQL EE features • GA 29 • New Easy to Use Wizards for – Fast Data Migration – Table<->File Data Import/Export (like Excel) – SSL Certificate Creation
- 30. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | • Active/Active Update Anywhere – Conflict detection and resolution (transaction rollback) – Optimistic State Machine Replication • Automatic group membership management and failure detection – No need for server fail-over – Elastic scale out/in – No single point of failure – Automatic reconfiguration • Well integrated – InnoDB – GTID-based replication – PERFORMANCE_SCHEMA MySQL Group Replication Application MySQL Nodes Replication Plugin Replication Plugin APIAPI MySQL Server MySQL Server Group CommsGroup Comms labs.mysql.com 30
- 31. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | The Future of MySQL Scaling (HA + Sharding) Global Data Shard 1 Shard 2 MySQL Fabric controller cluster SQL Queries Server/Shard State & Mapping Global Group HA Group Coordination and Control HA Group Group Replication cluster 31 Group Replication cluster Group Replication cluster MySQL Router
- 32. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL Repos • Distributions – 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 – https://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 https://github.com/mysql 32
- 33. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Agenda News in MySQL 5.7 Upgrading to MySQL 5.7 MySQL Document Store 1 2 33 3
- 34. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL Upgrade – Supported Paths • All minor upgrades like 5.7.9 to 5.7.10 or doing a jump like 5.7.9 to 5.7.11 is supported. • Upgrading one major (5.6 - 5.7) release level is supported. It’s recommended upgrading to the latest 5.6 release before moving to 5.7. • Doing long-jumps (5.1 – 5.7) is supported if you upgrade one release level at a time. • Direct upgrades that skip a release level (for example, upgrading directly from MySQL 5.5 to 5.7) is not recommended. 34
- 35. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL Upgrade – Before you start! • Review the “Release Notes” for target MySQL version • Review the manual page on upgrade for this MySQL version, take special care of sections covering: – “Server and Status Variables and Options Added, Deprecated, or Removed …” – “Checking Whether Tables or Indexes Must Be Rebuilt” – “Changes Affecting Upgrades to MySQL 5.N” • Create a plan for your upgrade/downgrade path • Create a backup of your database • 35 http://dev.mysql.com/doc/refman/5.7/en/upgrading.html
- 36. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL Upgrade – In-place Upgrade 1. Do all necessary preparations/plans as explained earlier 2. Do a graceful shutdown of MySQL (innodb_fast_shutdown=0) 3. Do upgrade, replace the old binaries with the new ones 4. Start new MySQL Server using new binaries 5. Run mysql_upgrade binary to upgrade internal mysql repository 6. Done! 36 http://mysqlserverteam.com/upgrading-directly-from-mysql-5-0-to-5-7-using-an-in-place-upgrade/ http://dev.mysql.com/doc/refman/5.7/en/upgrading.html#upgrade-procedure-inplace
- 37. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL Upgrade – Logical Upgrade 1. Do all necessary preparations/plans as explained earlier 2. Do a dump of only the user databases/schemas (skipping the mysql system schema, remember stored procedures, views and functions) 3. Do a clean installation of new MySQL version (remember to migrate important my.cnf options) 4. Load the dump file into the new MySQL server instance 5. Done! 37 http://dev.mysql.com/doc/refman/5.7/en/upgrading.html#upgrade-procedure-logical http://mysqlserverteam.com/upgrading-directly-from-mysql-5-0-to-5-7-with-mysqldump/
- 38. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL Upgrade – Using Replication “simplified” 1. Do all necessary preparations/plans as explained earlier 2. Restore backup from production (5.6) database to new slave server (5.7) 3. Start replication from master to slave 4. Once slave server has caught up with master 5. Change application to connect to slave (5.7) 6. Done! 38 MySQL 5.6 MySQL 5.7 Application Replication http://dev.mysql.com/doc/refman/5.7/en/replication.html
- 39. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL Upgrade – Regression Problems • Explain is you friend! – Optimizer_switch can help get back old query plans for slow queries • Monitor resources/MySQL before/after to spot changes – Without proper monitoring you have little chance to find root cause of problem • Did you change more than just MySQL version? – Normally we see people refresh HW/OS at the same time with creates many possible regression scenarios • Use PERFORMANCE_SCHEMA and SYS schema to spot problems. 39
- 40. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Upgrading from MySQL 5.1 or 5.5 to MySQL 5.7? News in MySQL 5.6 • Need version 5.1.20 of Connector/J (due to retire of “SET OPTION”) • InnoDB “Files per table” now default • The Query Cache is disabled by default • 8 new reserved key words have been defined (“get” and “partition”) • New data format of TIMESTAMP and DATETIME (microseconds) • Password on command line causes warnings (problematic for scripts) • New optimizer features may cause different query plans • Old password are not allowed by default 40 https://dev.mysql.com/doc/relnotes/mysql/5.6/en/
- 41. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | New Servers Default’s in MySQL 5.7 • innodb_strict_mode is “ON” • InnoDB file format is now Barracuda • sql_mode option “NO_AUTO_CREATE_USER, STRICT_TRANS_TABLES, ERROR_FOR_DIVISION_BY_ZERO, NO_ZERO_DATE, NO_ZERO_IN_DATE” is now default • More changes to optimizer_switch, may cause changed query plans! – Use explain to identify problem and set optimizer_switch to solve problem • MySQL accounts expire after 360 days. The default-password-lifetime is 360 • … and many more, see link below for more details 41 http://mysqlserverteam.com/improved-server-defaults-in-5-7/
- 42. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Removed Features in MySQL 5.7 • Old password are not allowed in MySQL 5.7 • Remove IGNORE for ALTER TABLE in 5.7, WL#7395 • Remove of INSERT DELAYED, WL#6073 • Remove YEAR(2) support, WL#6263 • Deprecate Unique Option Prefixes, WL#6978 • Deprecate skip-innodb in 5.6 and remove it in 5.7, WL#7976 • For complete list: http://mysqlserverteam.com/removal-and-deprecation- in-mysql-5-7/ 42
- 43. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7 – Installation changes • mysql_install_db is removed – Replaced by mysqld --initialize • MySQL is more Secure by default: – TLS/SSL enabled by default and for some packages keys are created by default – No creation of test database – No creation of anonymous users – Only one root user and password is set at installation time – All user accounts will automatically have their passwords rotated after 360 days – New mysql_ssl_rsa_setup tool • Use mysqld --initialize-insecure to get old behavior 43
- 44. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL 5.7: Additional Info • http://mysqlserverteam.com/whats-new-in-mysql-5-7-first-release-candidate/ • http://mysqlserverteam.com/category/performance/optimizer/ • http://mysqlserverteam.com/category/innodb/ • http://mysqlserverteam.com/category/mysql/performance-schema/ • http://dev.mysql.com/doc/refman/5.7/en/ • http://dev.mysql.com/doc/refman/5.7/en/upgrading.html • https://www.mysql.com/support/supportedplatforms/database.html 44
- 45. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Agenda News in MySQL 5.7 Upgrading to MySQL 5.7 MySQL Document Store 1 2 45 3
- 46. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Today’s Challenges • Developers want to move faster • Time to market has a premium value • Rapid prototyping, iterate fast… 46
- 47. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Today’s Challenges (cont.) • Relational databases ask for schema up front – Potentially saving you time in the future – Less variations; less code to handle edge cases – Added cost with each schema change • NoSQL databases do not ask for schema – Saving you time up front – But potentially adding operational costs over time – No cost per schema change 47
- 48. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Why can you not… • Have both schema-less and schema in the same technology stack? • One that checks all the boxes of all stakeholders: 48 Developers: [ x ] Schemaless [ x ] Rapid Prototyping/Simpler APIs [ x ] Document Model Operations: [ x ] Performance Management/Visibility [ x ] Robust Replication, Backup, Restore [ x ] Comprehensive Tooling Ecosystem Business Owner: [ x ] Don’t lose my data = ACID transactions [ x ] Capture all my data = Extensible/Schemaless [ x ] Products On Schedule/Time to Market = Rapid Development
- 49. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | NEW! MySQL Document Store • Native JSON Documents in MySQL 5.7 – Schema-less Document Storage • X Protocol (MySQL 5.7.12 DMR) – Implemented by X Plugin to Extend MySQL Server as a Document Store • X Dev API – SQL and Document CRUD Operations – Implemented in Connector/Node.js, Connector/J, Connector/Net • MySQL Shell – Javascript, Python, SQL modes
- 50. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | Architecture 50 MySQLMySQL Plugins X Protocol Plugin Memcached Plugin Core X ProtocolStd Protocol X Protocol 33060 Std Protocol 3306 SQL API CRUD API X and Std Protocols MySQL Shell
- 51. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | New! X Protocol • Asynchronous API support – Supporting Parallelism and Batching – Pipelining - Send multiple requests, Reduce Round Trips – Push Notifications - Beyond the Request/Response model • Middleware Friendly – Routing, Sharding, Read Write Splitting • Uses open standards: TLS, SASL, Protobuf etc – Proven, community friendly 51
- 52. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | New! MySQL X DevAPI • Modern: fluent API, method chaining • Stateless sessions enable transparent scaling to multi-server environments • SQL support • CRUD for Collections of Documents and Tables – Documents as simple basic domain objects – Search expressions match SQL SELECT expressions • Implemented in MySQL Shell & MySQL Connectors – NEW! MySQL Connector/node.js – MySQL Connector/J – MySQL Connector/Net
- 53. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | New! MySQL Shell • Integrated Development and Administration Shell • Exposes New X DevAPI • Multi-Language scripting – JavaScript, Python, and SQL • Configurable results formats – Traditional Table, JSON, Tab Separated 53
- 54. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | 54 tomas@localhost $ mysqlsh uri root@localhost/test Creating an X Session to root@localhost:33060/test Enter password: Default schema `test` accessible through db. … Currently in JavaScript mode. Use sql to switch to SQL mode and execute queries. mysqljs> db.createCollection("posts"); <Collection:posts> mysqljs> db.posts.add({"title":"Hello World", "text":"First post!"}) Query OK, 1 item affected (0.03 sec) mysqljs> db.posts.find("title = 'Hello World'").sort(["title"]); [ { "_id": "8202bda28206e611140b3229389b6526", "text": "First post!", "title": "Hello World" } ] 1 document in set (0.01 sec)
- 55. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | CRUD Operations – NoSQL/Document and SQL/Relational 55
- 56. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | CRUD Operations NoSQL/DocumentJavascript Java C#NodeJS
- 57. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | CRUD Operations SQL/Relational 57 Javascript Java C#NodeJS
- 58. Copyright © 2016, Oracle and/or its affiliates. All rights reserved. | MySQL Document Store
- 59. Copyright © 2016 Oracle and/or its affiliates. All rights reserved. | Thanks!