Monitoring Open Source Databases with Icinga

Transcription

1 Percona Live Amsterdam Monitoring Open Source Databases with Icinga

2 Bernd Erk Icinga

3 Introduction to Icinga

4 Quick Poll

5 Icinga is a scalable and extensible monitoring system which checks the availability of your resources, notifies users of outages and provides extensive metrics.

6 Icinga Quality, Testing and Community Support Icinga.org, dev.icinga.org, social media channels Icinga Web 2 Icinga Reports Icinga Doc Icinga Web Icinga 2 Icinga Classic (CGI) Icinga 3 rd Party Tools

7 Introduction to Icinga2 Icinga2 - Architecture

8 Multithreaded Perfdata Graphite Livestatus Modular Features Zone support Notify Compat Secure Agent Checker Gelf IDO No Nagios

9 Availability and scaling zones s Automatic redistribution of checks Zones for multitenancy environments

10 Open Source Databases

11 MySQLis MariaDB Percona Server h PostgreSQL L MongoDB Firebird SQLite

12 Availability Troubleshooting Replication-Status Capacity Metrics and performance data

13 check_mongodb_py connect connections replicaton_lag memory memory_mapped lock flushing last_flush_time replset_state index_miss_ratio collections database_size database_indexes replica_primary

14 check_postgres.pl archive_ready autovac_freeze backends bloat checkpoint cluster_id commitratio connection custom_query disabled_triggers disk_space fsm_pages prepared_txns query_runtime query_time replicate_row same_schema sequence settings_checksum

15 check_mysql_health connection-time uptime threads-connected threadcache-hitrate qcache-hitrate qcache-lowmem-prunes bufferpool-hitrate bufferpool-wait-free log-waits tablecache-hitrate table-lock-contention index-usage tmp-disk-tables slow-queries

16 const MySQLIcingaUsername = "root const MySQLIcingaPassword = root template Host "base-host-mysql" { vars.mysql_health_username = MySQLIcingaUsername vars.mysql_health_password = MySQLIcingaPassword vars.os = "Linux Linu x } object Host "live-mysql-1" { import "base-host-mysql" check_command = "hostalive" address = " " vars.dbtype = "mysql l }

17 /* * Apply for MySQLish basic connection */ apply Service "mysql_connection" { import "generic-service" check_interval = 10s retry_interval = 30s check_command = "mysql_health" vars.mysql_health_username = host.vars.mysql_health_username vars.mysql_health_password = host.vars.mysql_health_password vars.mysql_health_mode = "connection-time" assign where (host.address host.address6) && host.vars.dbtype == "mysql l }

18 Demo

19 Is this all?

20 Old Fart

21 mysql_healt object CheckCommand "mysql_health" { h import "ipv4-or-ipv6" command = [ PluginContribDir + "/check_mysql_health" ] arguments = { "--hostname" = { value = "$mysql_health_hostname$" description = "the database server's hostname" } "--port" = { value = "$mysql_health_port$" description = "the database's port...

22 ITL (Icinga Template Library) mysql_health postgres mongodb mssql_health db2_health oracle_health elasticsearch redis /usr/share/icinga2/include/plugins-contrib.d/databases.conf

23 object Host "live-mysql-1" { import "base-host-mysql" check_command = "hostalive" address = " " vars.dbtype = "mysql" } /* database checks */ vars.databases["icinga"] = { s mysql_health_warning = 2048//MB mysql_health_critical = 4096//MB } vars.databases["icingaweb2"] = { mysql_health_warning = 4096 //MB mysql_health_critical = 8192 //MB }

24 /* * Apply for MySQLish database size */ apply Service "mysql_size_" for (db_name => config in host.vars.databases) { import "generic-service" check_interval = 10s retry_interval = 30s check_command = "mysql_health" vars.mysql_health_username = host.vars.mysql_health_username vars.mysql_health_password = host.vars.mysql_health_password vars.mysql_health_mode = "sql" vars.mysql_health_name = "select sum(data_length + index_length) / 1024 / 1024 from information_schema.tables where table_schema = '" + db_name + "';" vars.mysql_health_name2 = "db_size" vars.mysql_health_units = "MB" } assign where (host.address host.address6) && host.vars.dbtype == "mysql

25 Icinga2 - Metrics

26 New Graphite Schema icinga2.$host.name$.host.$host.check_command$ icinga2.$host.name$.services.$service.name$.$service.check_command$ Threshold metrics enable_send_thresholds Metadata metrics enable_send_metadata

27 Demo

28 Icinga2 - API

29

30 HTTP with RESTful RESTf Url Schema X.509 and/or Basic ul Auth Create, Modify and Delete objects Event Stream based on Types and Filters

31 Demo

32 Conclusion

33 Download Icinga 2 and Icinga Web 2 Play with the Vagrant Vagrant boxes boxes Rethink your configuration Give us feedback

34 Enjoy your day

35 Thank You! dev.icinga.org /icinga +icinga

36 Rate My Session! 36