Package org.apache.solr.metrics

The SolrCoreMetricManager is responsible for collecting metrics from SolrMetricProducer's and exposing metrics to SolrMetricReporter's.

Interface Summary

Interface	Description
SolrMetricProducer	Used by objects that expose metrics through SolrCoreMetricManager.

Class Summary

Class	Description
AggregateMetric	This class is used for keeping several partial named values and providing useful statistics over them.
AggregateMetric.Update	Simple class to represent current value and how many times it was set.
AltBufferPoolMetricSet	This is an alternative implementation of BufferPoolMetricSet that doesn't need an MBean server.
FilteringSolrMetricReporter
MetricsMap	Dynamically constructed map of metrics, intentionally different from MetricSet where each metric had to be known in advance and registered separately in MetricRegistry.
MetricSuppliers	Helper class for constructing instances of MetricRegistry.MetricSupplier based on plugin configuration.
MetricSuppliers.DefaultCounterSupplier	Default Counter supplier.
MetricSuppliers.DefaultHistogramSupplier	Default supplier of Histogram instances, with configurable reservoir.
MetricSuppliers.DefaultMeterSupplier	Default Meter supplier.
MetricSuppliers.DefaultTimerSupplier	Default supplier of Timer instances, with configurable clock and reservoir.
OperatingSystemMetricSet	This is an extended replacement for FileDescriptorRatioGauge - that class uses reflection and doesn't work under Java 9.
SolrCoreContainerReporter	A SolrMetricReporter that has access to its CoreContainer.
SolrCoreMetricManager	Responsible for collecting metrics from SolrMetricProducer's and exposing metrics to SolrMetricReporter's.
SolrCoreReporter	A FilteringSolrMetricReporter that has access to its SolrCore.
SolrMetricInfo	Wraps meta-data for a metric.
SolrMetricManager	This class maintains a repository of named MetricRegistry instances, and provides several helper methods for managing various aspects of metrics reporting: registry creation, clearing and removal, creation of most common metric implementations, management of SolrMetricReporter-s specific to a named registry. MetricRegistry instances are automatically created when first referenced by name.
SolrMetricManager.AndFilter
SolrMetricManager.GaugeWrapper<T>	This is a wrapper for Gauge metrics, which are usually implemented as lambdas that often keep a reference to their parent instance.
SolrMetricManager.OrFilter
SolrMetricManager.PrefixFilter	An implementation of MetricFilter that selects metrics with names that start with one of prefixes.
SolrMetricManager.RegexFilter	An implementation of MetricFilter that selects metrics with names that match regular expression patterns.
SolrMetricReporter	Interface for 'pluggable' metric reporters.