Server cluster monitoring

摘要

A master monitor spawns a local monitor in each node of a server cluster. Each local monitor, responsive to a database event, determines a metric of a performance-related variable. A maximum period between measurements may be imposed to reduce irrelevant results, as may a minimum period. The metric may be stored in a measurement file on the respective node and/or may be reported to the master monitor. The master monitor may make any reported metrics available to a user via a front end.

主权项

1. A server cluster monitoring system comprising:
a master monitor configured to run on a first node of a server cluster, the server cluster being configured to host a massively parallel database system including a database management system (DBMS) accessible via a front end; and a local monitor spawned on each node of a server cluster by the master monitor and configured to determine a value of a respective performance-related variable of the node for a respective predefined period, the local monitor further being configured to write the determined value to a local file on a respective storage device of the respective node.