Igniters, Let’s shed more light on SQL query execution internals introducing a set of useful metrics (https://issues.apache.org/jira/browse/IGNITE-4757).
Per-query metrics. Total history size is defined by *CacheConfiguration.getQueryDetailMetricsSize*: * if a query was executed in the collocated or non-collocated mode. Three results are valid: collocated, non-collocated, simple query (no joins). * non-collocated query: size of the data exchanged between the nodes to complete a join. * non-collocated query: did a query do broadcast or unicast to get data needed to complete a join. * non-collocated and collocated query: a part of the time spent joining the data. CacheMetrics: * an average number of executed SQL queries (collocated, non-collocated, simple query (no joins)). Please don’t hesitate do share suggest another metrics or improve proposed ones. — Denis
