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e407e7243a
* {app/vmstorage,app/vmselect}: add API to get list of existing tenants
* {app/vmstorage,app/vmselect}: add API to get list of existing tenants
* app/vmselect: fix error message
* {app/vmstorage,app/vmselect}: fix error messages
* app/vmselect: change log level for error handling
* wip
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
58 lines
2.7 KiB
Go
58 lines
2.7 KiB
Go
package vmselectapi
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import (
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/querytracer"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
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)
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// API must implement vmselect API.
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type API interface {
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// InitSearch initialize series search for the given sq.
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//
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// The returned BlockIterator must be closed with MustClose to free up resources when it is no longer needed.
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InitSearch(qt *querytracer.Tracer, sq *storage.SearchQuery, deadline uint64) (BlockIterator, error)
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// SearchMetricNames returns metric names matching the given sq.
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SearchMetricNames(qt *querytracer.Tracer, sq *storage.SearchQuery, deadline uint64) ([]string, error)
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// LabelValues returns values for labelName label acorss series matching the given sq.
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LabelValues(qt *querytracer.Tracer, sq *storage.SearchQuery, labelName string, maxLabelValues int, deadline uint64) ([]string, error)
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// TagValueSuffixes returns tag value suffixes for the given args.
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TagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr storage.TimeRange, tagKey, tagValuePrefix string, delimiter byte, maxSuffixes int, deadline uint64) ([]string, error)
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// LabelNames returns lable names for series matching the given sq.
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LabelNames(qt *querytracer.Tracer, sq *storage.SearchQuery, maxLableNames int, deadline uint64) ([]string, error)
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// SeriesCount returns the number of series for the given (accountID, projectID).
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SeriesCount(qt *querytracer.Tracer, accountID, projectID uint32, deadline uint64) (uint64, error)
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// TSDBStatus returns tsdb status for the given sq.
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TSDBStatus(qt *querytracer.Tracer, sq *storage.SearchQuery, focusLabel string, topN int, deadline uint64) (*storage.TSDBStatus, error)
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// DeleteSeries deletes series matching the given sq.
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DeleteSeries(qt *querytracer.Tracer, sq *storage.SearchQuery, deadline uint64) (int, error)
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// RegisterMetricNames registers the given mrs in the storage.
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RegisterMetricNames(qt *querytracer.Tracer, mrs []storage.MetricRow, deadline uint64) error
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// Tenants returns list of tenants in the storage on the given tr.
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Tenants(qt *querytracer.Tracer, tr storage.TimeRange, deadline uint64) ([]string, error)
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}
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// BlockIterator must iterate through series blocks found by VMSelect.InitSearch.
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//
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// MustClose must be called in order to free up allocated resources when BlockIterator is no longer needed.
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type BlockIterator interface {
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// NextBlock reads the next block into mb.
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//
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// It returns true on success, false on error or if no blocks to read.
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NextBlock(mb *storage.MetricBlock) bool
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// MustClose frees up resources allocated by BlockIterator.
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MustClose()
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// Error returns the last error occurred in NextBlock(), which returns false.
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Error() error
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}
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