Difference between revisions of "MariaDB"
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==Links== | ==Links== | ||
* https://www.percona.com/doc/percona-toolkit/2.2/index.html | * https://www.percona.com/doc/percona-toolkit/2.2/index.html | ||
+ | ** [https://www.percona.com/doc/percona-toolkit/2.2/pt-heartbeat.html pt-heartbeat - Monitor MySQL replication delay.] | ||
+ | ** [https://www.percona.com/doc/percona-toolkit/2.2/pt-index-usage.html pt-index-usage - Read queries from a log and analyze how they use indexes.] |
Revision as of 14:53, 12 June 2016
Contents
ToDo
Infrastruktur
- PT er netværket daisychained - Server-rack - krydsfelt 1. sal - krydsfelt stue - serverrum stue
- Er der Gbit link i samtlige led ?
- INGEN Ups på switce i krydsfelter
- Ingen failover link - ingen Spanning Tree
- Risiko for split-brain scenarios
PHP/MySQL med failover
- Alle der udvikler PHP til info SKAL læse
- MySQL native driver
- MySQL replication and load balancing plugin <-- det er denne der kan lave failover men den kan kun lave slave-master !!
- http://www.slideshare.net/dotmanila/highly-available-mysqlphp-applications-with-mysqlnd - slide 58+ - især slide 70 !!!
- http://www.slideshare.net/nixnutz/load-mysq-clusterin-balancing-peclmysqlndms-14
Monitorering
Følgende targets skal sættes i nagios for alle 3 nodes
- Galera cync
- Inten SSD
- SW Raid
- MySQL connection
- free space:
- root partition
- /mnt/data
- CPU forbrug
Ting at være obs på
- LOAD DATA INFILE - forventer lokale filer
- LOAD DATA LOCAL INFILE er implicit IGNORE, så der kommer ingen fejl hvis at der er fejl i datafilen