Helsinki MySQL User Group - MySQL InnoDB Cluster

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3. Helsinki MySQL User Group May 18th 2017 MySQL InnoDB Cluster When MySQL High Availability is Made Easy Frédéric Descamps - MySQL Community Manager - Oracle 3 / 143

4. Safe Harbor Statement The following is intended to outline our generalproduct direction. It isintended for information purpose only, and may not be incorporated into any contract. It isnot a commitment to deliver any material, code, or functionality, and should not be relied up in making purchasing decisions. Thedevelopment, release and timing of any features or functionality described for Oracle´s product remains at thesole discretion of Oracle. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 4 / 143

6. Frédéric Descamps @lefred MySQLEvangelist HackingMySQLsince 3.23 devops believer MySQLCommunity Manager since May 2016 (🎂) living in Belgium 🇧🇪 Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 6 / 143

9. Our vision in 4 steps MySQLDocumentStore Relational&DocumentModels MySQLHA Out-Of-BoxHA ReadScale-Out AsyncReplication+A utoFailover WriteScale-Out Sharding E1 E3 E2 E4 Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 9 / 143

10. Step 2´s Architecture Application MySQLConnector MySQLRouter MySQLShell InnoDB cluster Application MySQLConnector MySQLRouter Mp M M Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 10 / 143

11. Step 3´s Architecture Application MySQLConnector MySQLRouter MySQLShell InnoDB cluster Application MySQLConnector MySQLRouter Mp M M S1 S2 S3 S4 S... Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 11 / 143

12. Step 4´s Architecture Application MySQLConnector MySQLRouter MySQLShell Application MySQLConnector MySQLRouter InnoDB cluster Mp M M S2 S3 S4 S...S1 InnoDB cluster Mp M M S1 S2 S3 S4 S... InnoDB cluster Mp M M S1 S2 S3 S4 S... Application MySQLConnector MySQLRouter Application MySQLConnector MySQLRouter Application MySQLConnector MySQLRouter replicaset1 replicaset2 replicaset3 Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 12 / 143

17. High Availability High availability is a characteristicofa system, which aimstoensureanagreedlevelof operational performance, usuallyuptime, for a higher thannormalperiod. There are three principles of systemsdesigninreliabilityengineeringwhichcanhelp achieve high availability: Elimination of single points offailure. Thismeansaddingredundancyto the system so that failure of a componentdoesnotmeanfailureoftheentiresystem. Reliable crossover. In redundantsystems, thecrossover pointitselftendstobecome a single point of failure. Reliablesystemsmustprovideforreliablecrossover. Detection of failures as they occur. Ifthetwoprinciplesaboveareobserved,thena user may never see a failure. Butthemaintenanceactivitymust. Source: WikipediaCopyright @ 2017 Oracle and/or its affiliates. All rights reserved. 17 / 143

21. Database Redundancy How to achieve it ? Multiple solutions exist, someworse thantheothers ;-) use of share storage use of share blocs by network(drbd) Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 21 / 143

22. Database Redundancy How to achieve it ? Multiple solutions exist, someworse thantheothers ;-) use of share storage use of share blocs by network(drbd) use of MySQLreplication Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 22 / 143

23. Database Redundancy How to achieve it ? Multiple solutions exist, someworse thantheothers ;-) use of share storage use of share blocs by network(drbd) use of MySQLreplication Of course the last one is the technique most spread, more flexible and more reliable. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 23 / 143

26. MySQL Replication There are multiple types of MySQLreplication: asynchronous replication (async) semi-synchronous replication(semi-sync) Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 26 / 143

27. MySQL Replication There are multiple types of MySQLreplication: asynchronous replication (async) semi-synchronous replication(semi-sync) group replication -since (5.7.17) !! Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 27 / 143

28. Asynchronous Replication(s) replicas (also called slaves) stream thereplication logs froma unique master (multi- source replication is possiblesince5.7.6) Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 28 / 143

29. Asynchronous Replication(s) replicas (also called slaves) stream thereplication logs froma unique master (multi- source replication is possiblesince5.7.6) slaves can be laging (having delay), there isno delivery guarantee (unless for semi- sync) Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 29 / 143

30. Asynchronous Replication(s) replicas (also called slaves) stream thereplication logs froma unique master (multi- source replication is possiblesince5.7.6) slaves can be laging (having delay), there isno delivery guarantee (unless for semi- sync) replicas provisioning is manual Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 30 / 143

31. Asynchronous Replication(s) replicas (also called slaves) stream thereplication logs froma unique master (multi- source replication is possiblesince5.7.6) slaves can be laging (having delay), there isno delivery guarantee (unless for semi- sync) replicas provisioning is manual data consistency on replicas is assumed and needs a manual verification Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 31 / 143

32. Asynchronous Replication(s) replicas (also called slaves) stream thereplication logs froma unique master (multi- source replication is possiblesince5.7.6) slaves can be laging (having delay), there isno delivery guarantee (unless for semi- sync) replicas provisioning is manual data consistency on replicas is assumed and needs a manual verification it´s even possible to create circular replication (highly not recommended) Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 32 / 143

33. Asynchronous Replication(s) replicas (also called slaves) stream thereplication logs froma unique master (multi- source replication is possiblesince5.7.6) slaves can be laging (having delay), there isno delivery guarantee (unless for semi- sync) replicas provisioning is manual data consistency on replicas is assumed and needs a manual verification it´s even possible to create circular replication (highly not recommended) write operations are safe onlyfrom a unique global master Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 33 / 143

46. MySQL HA Architectures with asynchronous replication It exists a lot of possible architectures and asmuch tools to enforce them. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 46 / 143

47. MySQL HA Architectures with asynchronous replication It exists a lot of possible architectures and asmuch tools to enforce them. They are all based on the sameprinciple: Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 47 / 143

48. MySQL HA Architectures with asynchronous replication It exists a lot of possible architectures and asmuch tools to enforce them. They are all based on the sameprinciple: 1 master Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 48 / 143

49. MySQL HA Architectures with asynchronous replication It exists a lot of possible architectures and asmuch tools to enforce them. They are all based on the sameprinciple: 1 master 1 or many replicas (slaves) Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 49 / 143

50. MySQL HA Architectures with asynchronous replication It exists a lot of possible architectures and asmuch tools to enforce them. They are all based on the sameprinciple: 1 master 1 or many replicas (slaves) If the master as an issue, the most accurate slave needs to takeover therole and be promoted as master for all the remaining slaves still online. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 50 / 143

53. Automation And this is the most complicated part... It exists a large amount of external tools that canbe used to achieve thistask.Most of them are only compatible with GNU/Linux. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 53 / 143

54. Automation And this is the most complicated part... It exists a large amount of external tools that canbe used to achieve thistask.Most of them are only compatible with GNU/Linux. Their problem is that they create complexity inthearchitecture's design. You need to be DBA & sysadmin to manage those solutions: Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 54 / 143

55. Automation And this is the most complicated part... It exists a large amount of external tools that canbe used to achieve thistask.Most of them are only compatible with GNU/Linux. Their problem is that they create complexity inthearchitecture's design. You need to be DBA & sysadmin to manage those solutions: MySQL-Utilities (mysqlrplcheck, mysqlrpladmin) Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 55 / 143

56. Automation And this is the most complicated part... It exists a large amount of external tools that canbe used to achieve thistask.Most of them are only compatible with GNU/Linux. Their problem is that they create complexity inthearchitecture's design. You need to be DBA & sysadmin to manage those solutions: MySQL-Utilities (mysqlrplcheck, mysqlrpladmin) Pacemaker withMySQLdedicated OCF Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 56 / 143

57. Automation And this is the most complicated part... It exists a large amount of external tools that canbe used to achieve thistask.Most of them are only compatible with GNU/Linux. Their problem is that they create complexity inthearchitecture's design. You need to be DBA & sysadmin to manage those solutions: MySQL-Utilities (mysqlrplcheck, mysqlrpladmin) Pacemaker withMySQLdedicated OCF custom solutions... Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 57 / 143

60. MySQL Group Replication but what is it ?!? GR is a plugin forMySQL, made byMySQLand packaged withMySQL GR is an implementation of Replicated Database State Machine theory Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 60 / 143

61. MySQL Group Replication but what is it ?!? GR is a plugin forMySQL, made byMySQLand packaged withMySQL GR is an implementation of Replicated Database State Machine theory GR uses a Paxos based protocol Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 61 / 143

62. MySQL Group Replication but what is it ?!? GR is a plugin forMySQL, made byMySQLand packaged withMySQL GR is an implementation of Replicated Database State Machine theory GR uses a Paxos based protocol GR allows to write on all Group Members (cluster nodes) simultaneously while retaining consistency Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 62 / 143

63. MySQL Group Replication but what is it ?!? GR is a plugin forMySQL, made byMySQLand packaged withMySQL GR is an implementation of Replicated Database State Machine theory GR uses a Paxos based protocol GR allows to write on all Group Members (cluster nodes) simultaneously while retaining consistency GR implements conflict detection and resolution Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 63 / 143

64. MySQL Group Replication but what is it ?!? GR is a plugin forMySQL, made byMySQLand packaged withMySQL GR is an implementation of Replicated Database State Machine theory GR uses a Paxos based protocol GR allows to write on all Group Members (cluster nodes) simultaneously while retaining consistency GR implements conflict detection and resolution GR allows automatic distributed recovery Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 64 / 143

65. MySQL Group Replication but what is it ?!? GR is a plugin forMySQL, made byMySQLand packaged withMySQL GR is an implementation of Replicated Database State Machine theory GR uses a Paxos based protocol GR allows to write on all Group Members (cluster nodes) simultaneously while retaining consistency GR implements conflict detection and resolution GR allows automatic distributed recovery Supported onallMySQLplatforms!! Linux, Windows, Solaris, OSX,FreeBSD Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 65 / 143

68. And for users ? no longer necessary to handleserver fail-over manually or with a complicated script GR provides fault tolerance Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 68 / 143

69. And for users ? no longer necessary to handleserver fail-over manually or with a complicated script GR provides fault tolerance GR enables update-everywhere setups Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 69 / 143

70. And for users ? no longer necessary to handleserver fail-over manually or with a complicated script GR provides fault tolerance GR enables update-everywhere setups GR handles crashes, failures, re-connetcs automatically Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 70 / 143

71. And for users ? no longer necessary to handleserver fail-over manually or with a complicated script GR provides fault tolerance GR enables update-everywhere setups GR handles crashes, failures, re-connetcs automatically Allows an easy setup of aMySQLservice high available ! Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 71 / 143

75. OK, but how does it work ? it's just ... ... no, in fact the writesets replication issynchronousand then certification and apply of the changes are local to each nodes and asynchronous. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 75 / 143

76. OK, but how does it work ? it's just ... ... no, in fact the writesets replication issynchronousand then certification and apply of the changes are local to each nodes and asynchronous. not that easy to understand... right ? As a picture isworth a 1000words, let's illustrate this... Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 76 / 143

90. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 90 / 143

91. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? based on unapplied earlier transactions Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 91 / 143

92. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? based on unapplied earlier transactions such conflicts must come forother members/nodes Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 92 / 143

93. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? based on unapplied earlier transactions such conflicts must come forother members/nodes happens on every member/node Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 93 / 143

94. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? based on unapplied earlier transactions such conflicts must come forother members/nodes happens on every member/node should be deterministic on every node Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 94 / 143

95. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? based on unapplied earlier transactions such conflicts must come forother members/nodes happens on every member/node should be deterministic on every node results are not reported to thegroup Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 95 / 143

96. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? based on unapplied earlier transactions such conflicts must come forother members/nodes happens on every member/node should be deterministic on every node results are not reported to thegroup pass: enter in the apply queue Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 96 / 143

97. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? based on unapplied earlier transactions such conflicts must come forother members/nodes happens on every member/node should be deterministic on every node results are not reported to thegroup pass: enter in the apply queue fail: drop the transaction Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 97 / 143

98. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? based on unapplied earlier transactions such conflicts must come forother members/nodes happens on every member/node should be deterministic on every node results are not reported to thegroup pass: enter in the apply queue fail: drop the transaction serialized by the total order in GCS/XCOM+ GTID Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 98 / 143

99. Certification Certification is the process that only needs to answer thefollowing unique question: can the write (transaction) beapplied? based on unapplied earlier transactions such conflicts must come forother members/nodes happens on every member/node should be deterministic on every node results are not reported to thegroup pass: enter in the apply queue fail: drop the transaction serialized by the total order in GCS/XCOM+ GTID cost is based on trx size (# rows &# keys) Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 99 / 143

100. GTID GTIDs are the same as those used by asynchronous replication. mysql> SELECT * FROM performance_schema.replication_connection_statusG ************************** 1. row *************************** CHANNEL_NAME: group_replication_applier GROUP_NAME: afb80f36-2bff-11e6-84e0-0800277dd3bf SOURCE_UUID: afb80f36-2bff-11e6-84e0-0800277dd3bf THREAD_ID: NULL SERVICE_STATE: ON COUNT_RECEIVED_HEARTBEATS: 0 LAST_HEARTBEAT_TIMESTAMP: 0000-00-00 00:00:00 RECEIVED_TRANSACTION_SET: afb80f36-2bff-11e6-84e0-0800277dd3bf:1-57, f037578b-46b1-11e6-8005-08002774c31b:1-48937 LAST_ERROR_NUMBER: 0 LAST_ERROR_MESSAGE: LAST_ERROR_TIMESTAMP: 0000-00-00 00:00:00 Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 100 / 143

101. but transactions use the Group´s GTID mysql> show master statusG ************************** 1. row *************************** File: mysql4-bin.000001 Position: 1501 Binlog_Do_DB: Binlog_Ignore_DB: Executed_Gtid_Set: afb80f36-2bff-11e6-84e0-0800277dd3bf:1-57, f037578b-46b1-11e6-8005-08002774c31b:1-48937 Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 101 / 143

105. Requirements exclusively works with InnoDBtables only every tables must have a PK defined only IPV4 is supported a good network with low latency isimportant Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 105 / 143

106. Requirements exclusively works with InnoDBtables only every tables must have a PK defined only IPV4 is supported a good network with low latency isimportant maximum of 9 members per group Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 106 / 143

107. Requirements exclusively works with InnoDBtables only every tables must have a PK defined only IPV4 is supported a good network with low latency isimportant maximum of 9 members per group log-bin must be enabled and onlyROWformat is supported Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 107 / 143

109. Requirements (2) enable GTIDs replication meta-data must bestored insystem tables --master-info-repository=TABLE --relay-log-info-repository=TABLE Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 109 / 143

110. Requirements (2) enable GTIDs replication meta-data must bestored insystem tables --master-info-repository=TABLE --relay-log-info-repository=TABLE writesets extraction must be enabled --transaction-write-set-extraction=XXHASH64 Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 110 / 143

111. Requirements (2) enable GTIDs replication meta-data must bestored insystem tables --master-info-repository=TABLE --relay-log-info-repository=TABLE writesets extraction must be enabled --transaction-write-set-extraction=XXHASH64 log-slave-updates must alsobe enabled Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 111 / 143

113. Limitations binlog checksum is not supported (but we have checksum in the replicationchannel) --binlog-checksum=NONE savepointswere not supported before 5.7.19& 8.0.1 Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 113 / 143

114. Limitations binlog checksum is not supported (but we have checksum in the replicationchannel) --binlog-checksum=NONE savepointswere not supported before 5.7.19& 8.0.1 SERIALIZABLEis not supported as transaction isolation level Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 114 / 143

115. Limitations binlog checksum is not supported (but we have checksum in the replicationchannel) --binlog-checksum=NONE savepointswere not supported before 5.7.19& 8.0.1 SERIALIZABLEis not supported as transaction isolation level http://lefred.be/content/mysql-group-replication-limitations-savepoints/ http://lefred.be/content/mysql-group-replication-and-table-design/ Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 115 / 143

117. Default = Single Primary Mode By default, MySQLInnoDBClusterruns inSingle Primary Mode. mysql> show global variables like 'group_replication_single_primary_mode'; +---------------------------------------+-------+ | Variable_name | Value | +---------------------------------------+-------+ | group_replication_single_primary_mode | ON | +---------------------------------------+-------+ Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 117 / 143

118. Default = Single Primary Mode By default, MySQLInnoDBClusterruns inSingle Primary Mode. mysql> show global variables like 'group_replication_single_primary_mode'; +---------------------------------------+-------+ | Variable_name | Value | +---------------------------------------+-------+ | group_replication_single_primary_mode | ON | +---------------------------------------+-------+ In Single Primary Mode, a single member acts asthewritable master (PRIMARY) and the rest of the members act as hot-standbys (SECONDARY). The group itself coordinates and configures itself automatically to determine which member will act as thePRIMARY, through a leader election mechanism. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 118 / 143

120. MySQL Router (GA!) MySQLRouter is lightweight middleware that provides transparent routing between your application and backendMySQLServers. It can be used for awide variety of use cases, such as providing high availability and scalability by effectively routing database trafficto appropriate backendMySQLServers. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 120 / 143

121. MySQL Router (GA!) MySQLRouter is lightweight middleware that provides transparent routing between your application and backendMySQLServers. It can be used for awide variety of use cases, such as providing high availability and scalability by effectively routing database trafficto appropriate backendMySQLServers. MySQLRouter doesn´t require any specific configuration. Itconfigures itself automatically (bootstrap) usingMySQLInnoDB Cluster´s metadata. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 121 / 143

122. MySQL Router (GA!) MySQLRouter is lightweight middleware that provides transparent routing between your application and backendMySQLServers. It can be used for awide variety of use cases, such as providing high availability and scalability by effectively routing database trafficto appropriate backendMySQLServers. MySQLRouter doesn´t require any specific configuration. Itconfigures itself automatically (bootstrap) usingMySQLInnoDB Cluster´s metadata. TheMySQLRouter development will be focusing on sharding. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 122 / 143

123. ProxySQLhas native support for Group Replication which makes it a good choice for advanced users. ProxySQL If you need some specific features that are not yet available inMySQLRouter, like transparent R/W splitting, then you canuse your software of choice. We are also collaborating with ProxySQL. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 123 / 143

125. MySQL Shell (GA!) TheMySQLShell is an interactive Javascript, Python, or SQLinterface supporting development and administration for theMySQLServer and is acomponent of theMySQL Server. You can use theMySQLShell to perform data queriesand updates aswell as various administration operations. Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 125 / 143

129. MySQL Shell (2) TheMySQLShell provides: Both Interactive and Batch operations Document and Relational Models CRUD Document and Relational APIs via scripting Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 129 / 143

130. MySQL Shell (2) TheMySQLShell provides: Both Interactive and Batch operations Document and Relational Models CRUD Document and Relational APIs via scripting Traditional Table, JSON, Tab Separated output results formats Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 130 / 143

131. MySQL Shell (2) TheMySQLShell provides: Both Interactive and Batch operations Document and Relational Models CRUD Document and Relational APIs via scripting Traditional Table, JSON, Tab Separated output results formats MySQLStandard and X Protocols Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 131 / 143

132. MySQL Shell (2) TheMySQLShell provides: Both Interactive and Batch operations Document and Relational Models CRUD Document and Relational APIs via scripting Traditional Table, JSON, Tab Separated output results formats MySQLStandard and X Protocols and more... Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 132 / 143

135. Deploying a MySQL InnoDB Cluster using MySQL Shell´s adminAPI: mysql-js> var i1 = 'root@instance01:3306'; mysql-js> var i2 = 'root@instance02:3306'; mysql-js> var i3 = 'root@instance03:3306'; mysql-js> dba.checkInstanceCon guration(i1); mysql-js> dba.checkInstanceCon guration(i2); mysql-js> dba.checkInstanceCon guration(i3); mysql-js> shell.connect(i1); mysql-js> var cluster = dba.createCluster('HMUG'); mysql-js> cluster.checkInstanceState(i2); mysql-js> cluster.addInstance(i2); mysql-js> cluster.checkInstanceState(i3); mysql-js> cluster.addInstance(i3); Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 135 / 143

137. instance01.yaml : classes: - innodbcluster innodbcluster::mysql_serverid: 1 Thanks to the MySQL Shell we can automate everything ;-) https://github.com/lefred/puppet-lefred-innodbcluster Super easy using hiera: common.yaml: innodbcluster::mysql_root_password: StRongP4ssw0rD! innodbcluster::mysql_bind_interface: eth1 innodbcluster::cluster_name: HMUG innodbcluster::grant::user: fred innodbcluster::grant::password: fred innodbcluster::seed: instance01 Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 137 / 143

138. example (2) Withhiera-eyaml you can even encrypt your password: innodbcluster::mysql_root_password: > ENC[PKCS7,MIIBeQYJKoZIhvcNAQcDoIIBajCCAWYCAQAxggEhMIIBHQIBADAFMAACAQEw DQYJKoZIhvcNAQEBBQAEggEAhqKUTXZ/4L8/aL3XARMfDBEI+s5HPshPg9BI ... FLfovstrb8zmcbk5yb/KD0lDM8Elas0lrnpk8MxwNfKw+hB299JFp8ldAtUk ODIieTA8BgkqhkiG9w0BBwEwHQYJYIZIAWUDBAEqBBBJEeoyzHtW/WGpbiUz gcXTgBAnb1gGrBZAfAiv/ztwuZ9z] innodbcluster::mysql_bind_interface: eth1 innodbcluster::cluster_name: HMUG innodbcluster::grant::user: root innodbcluster::grant::password: > ENC[PKCS7,MIIBeQYJKoZIhvcNAQcDoIIBajCCAWYCAQAxggEhMIIBHQIBADAFMAACAQEw DQYJKoZIhvcNAQEBBQAEggEAhqKUTXZ/4L8/aL3XARMfDBEI+s5HPshPg9BI ... FLfovstrb8zmcbk5yb/KD0lDM8Elas0lrnpk8MxwNfKw+hB299JFp8ldAtUk ODIieTA8BgkqhkiG9w0BBwEwHQYJYIZIAWUDBAEqBBBJEeoyzHtW/WGpbiUz gcXTgBAnb1gGrBZAfAiv/ztwuZ9z] Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 138 / 143

140. Resources http://lefred.be/content/mysql-innodb-cluster-mysql-shell-starter-guide/ http://lefred.be/content/mysql-innodb-cluster-automated-installation-with-puppet/ http://lefred.be/content/category/mysql/group-replication/ https://www.slideshare.net/lefred.descamps/mysql-devops-webinar http://mysqlserverteam.com/innodb-cluster-in-opc/ Copyright @ 2017 Oracle and/or its affiliates. All rights reserved. 140 / 143

Helsinki MySQL User Group - MySQL InnoDB Cluster

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