The Ultimate Guide to High Availability with MariaDB

MariaDB ColumnStore System Monitoring

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Contents

  1. Configuration for monitoring
    1. Viewing system configuration

A Parent OAM Module in MariaDB ColumnStore is one of the performance module node, which in addition to query processing like other PM nodes, also monitors the overall system health, resource usage and PM node failover management. Various mcsadmin commands can be used to view this monitoring data. The monitored resources are System, processes, servers, CPU usage, disk usage, RAID, memory usage, and swap space.

Configuration for monitoring

Viewing system configuration

To view the system configuration, use getSystemConfig command in mcsadmin, or simply use mcsadmin getSystemConfig from the operating system prompt.

Example:
# mcsadmin getSystemConfig
getsystemconfig Wed Mar 28 10:17:49 2016

System Configuration

SystemName = sn-perf-1
SoftwareVersion = 3.0
SoftwareRelease = 0
ParentOAMModuleName = pm1
StandbyOAMModuleName = pm2
NMSIPAddr = 0.0.0.0
ModuleHeartbeatPeriod = 1
ModuleHeartbeatCount = 3
DBRootCount = 6
DBRoot1 = /usr/local/mariadb/columnstore/data1
DBRoot2 =/usr/local/mariadb/columnstore/data2
DBRoot3 = /usr/local/mariadb/columnstore/data3
DBRoot4 = /usr/local/mariadb/columnstore/data4
DBRoot5 = /usr/local/mariadb/columnstore/data5
DBRoot6 = /usr/local/mariadb/columnstore/data6
DBRMRoot = /usr/local/mariadb/columnstore/data1/systemFiles/dbrm/BRM_saves
ExternalCriticalThreshold = 90
ExternalMajorThreshold = 80
ExternalMinorThreshold = 70
MaxConcurrentTransactions = 1000
SharedMemoryTmpFile = /usr/local/mariadb/columnstore/data1/systemFiles/dbrm/CalpontShm
VersionBufferFileSize = 1
OIDBitmapFile = /usr/local/mariadb/columnstore/data1/systemFiles/dbrm/oidbitmap
FirstOID = 3000
TransactionArchivePeriod = 10

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