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querier_test.go
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querier_test.go
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// SPDX-License-Identifier: AGPL-3.0-only
// Provenance-includes-location: https://github.com/cortexproject/cortex/blob/master/integration/querier_test.go
// Provenance-includes-license: Apache-2.0
// Provenance-includes-copyright: The Cortex Authors.
//go:build requires_docker
package integration
import (
"fmt"
"strconv"
"testing"
"time"
"github.com/grafana/e2e"
e2ecache "github.com/grafana/e2e/cache"
e2edb "github.com/grafana/e2e/db"
promv1 "github.com/prometheus/client_golang/api/prometheus/v1"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/prompb"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/grafana/mimir/integration/e2emimir"
"github.com/grafana/mimir/pkg/storage/tsdb"
"github.com/grafana/mimir/pkg/util"
)
func TestQuerierWithBlocksStorageRunningInMicroservicesMode(t *testing.T) {
for _, streamingEnabled := range []bool{true, false} {
t.Run(fmt.Sprintf("streaming=%t", streamingEnabled), func(t *testing.T) {
testQuerierWithBlocksStorageRunningInMicroservicesMode(t, streamingEnabled, generateFloatSeries)
})
}
}
func TestQuerierWithBlocksStorageRunningInMicroservicesModeWithHistograms(t *testing.T) {
for _, streamingEnabled := range []bool{true, false} {
t.Run(fmt.Sprintf("streaming=%t", streamingEnabled), func(t *testing.T) {
testQuerierWithBlocksStorageRunningInMicroservicesMode(t, streamingEnabled, generateHistogramSeries)
})
}
}
func testQuerierWithBlocksStorageRunningInMicroservicesMode(t *testing.T, streamingEnabled bool, seriesGenerator func(name string, ts time.Time, additionalLabels ...prompb.Label) (series []prompb.TimeSeries, vector model.Vector, matrix model.Matrix)) {
tests := map[string]struct {
tenantShardSize int
indexCacheBackend string
queryShardingEnabled bool
}{
"shard size 0, inmemory index cache": {
tenantShardSize: 0,
indexCacheBackend: tsdb.IndexCacheBackendInMemory,
},
"shard size 0, memcached index cache": {
tenantShardSize: 0,
indexCacheBackend: tsdb.IndexCacheBackendMemcached,
},
"shard size 1, memcached index cache": {
tenantShardSize: 1,
indexCacheBackend: tsdb.IndexCacheBackendMemcached,
},
"shard size 1, memcached index cache, query sharding enabled": {
tenantShardSize: 1,
indexCacheBackend: tsdb.IndexCacheBackendMemcached,
queryShardingEnabled: true,
},
}
const blockRangePeriod = 5 * time.Second
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Configure the blocks storage to frequently compact TSDB head
// and ship blocks to the storage.
commonFlags := mergeFlags(BlocksStorageFlags(), BlocksStorageS3Flags(), map[string]string{
"-blocks-storage.tsdb.block-ranges-period": blockRangePeriod.String(),
"-blocks-storage.tsdb.ship-interval": "1s",
"-blocks-storage.tsdb.retention-period": "1ms", // Retention period counts from the moment the block was uploaded to storage so we're setting it deliberatelly small so block gets deleted as soon as possible
"-compactor.first-level-compaction-wait-period": "1m", // Do not compact aggressively
})
// Start dependencies in common with all test cases.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, commonFlags["-blocks-storage.s3.bucket-name"])
require.NoError(t, s.StartAndWaitReady(consul, minio))
// Start Mimir components in common with all test cases.
distributor := e2emimir.NewDistributor("distributor", consul.NetworkHTTPEndpoint(), commonFlags)
ingester := e2emimir.NewIngester("ingester", consul.NetworkHTTPEndpoint(), commonFlags)
require.NoError(t, s.StartAndWaitReady(distributor, ingester))
// Wait until both the distributor and querier have updated the ring. The querier will also watch
// the store-gateway ring if blocks sharding is enabled.
// The distributor should have 512 tokens for the ingester ring and 1 for the distributor ring
require.NoError(t, distributor.WaitSumMetrics(e2e.Equals(512+1), "cortex_ring_tokens_total"))
// Push some series to Mimir.
writeClient, err := e2emimir.NewClient(distributor.HTTPEndpoint(), "", "", "", "user-1")
require.NoError(t, err)
series1Name := "series_1"
series2Name := "series_2"
series1Timestamp := time.Now()
series2Timestamp := series1Timestamp.Add(blockRangePeriod * 2)
series1, expectedVector1, _ := seriesGenerator(series1Name, series1Timestamp, prompb.Label{Name: series1Name, Value: series1Name})
series2, expectedVector2, _ := seriesGenerator(series2Name, series2Timestamp, prompb.Label{Name: series2Name, Value: series2Name})
res, err := writeClient.Push(series1)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
res, err = writeClient.Push(series2)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
// Wait until the TSDB head is compacted and shipped to the storage.
// The shipped block contains the 1st series, while the 2ns series is in the head.
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(1), "cortex_ingester_shipper_uploads_total"))
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(1), "cortex_ingester_memory_series"))
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(2), "cortex_ingester_memory_series_created_total"))
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(1), "cortex_ingester_memory_series_removed_total"))
// Push another series to further compact another block and delete the first block
// due to expired retention.
series3Name := "series_3"
series3Timestamp := series2Timestamp.Add(blockRangePeriod * 2)
series3, expectedVector3, _ := seriesGenerator(series3Name, series3Timestamp, prompb.Label{Name: series3Name, Value: series3Name})
res, err = writeClient.Push(series3)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(2), "cortex_ingester_shipper_uploads_total"))
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(1), "cortex_ingester_memory_series"))
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(3), "cortex_ingester_memory_series_created_total"))
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(2), "cortex_ingester_memory_series_removed_total"))
// Start the compactor to have the bucket index created before querying.
compactor := e2emimir.NewCompactor("compactor", consul.NetworkHTTPEndpoint(), commonFlags)
require.NoError(t, s.StartAndWaitReady(compactor))
for testName, testCfg := range tests {
t.Run(testName, func(t *testing.T) {
// We start a dedicated memcached for each test case because we want each test to start
// with an empty cache.
memcached := e2ecache.NewMemcached()
t.Cleanup(func() { require.NoError(t, s.Stop(memcached)) })
require.NoError(t, s.StartAndWaitReady(memcached))
flags := mergeFlags(commonFlags, map[string]string{
"-blocks-storage.bucket-store.index-cache.memcached.addresses": "dns+" + memcached.NetworkEndpoint(e2ecache.MemcachedPort),
"-blocks-storage.bucket-store.sync-interval": "1s",
"-blocks-storage.bucket-store.index-cache.backend": testCfg.indexCacheBackend,
"-store-gateway.tenant-shard-size": fmt.Sprintf("%d", testCfg.tenantShardSize),
"-query-frontend.query-stats-enabled": "true",
"-query-frontend.parallelize-shardable-queries": strconv.FormatBool(testCfg.queryShardingEnabled),
"-querier.prefer-streaming-chunks-from-store-gateways": strconv.FormatBool(streamingEnabled),
})
// Start store-gateways.
storeGateway1 := e2emimir.NewStoreGateway("store-gateway-1", consul.NetworkHTTPEndpoint(), flags)
storeGateway2 := e2emimir.NewStoreGateway("store-gateway-2", consul.NetworkHTTPEndpoint(), flags)
storeGateways := e2emimir.NewCompositeMimirService(storeGateway1, storeGateway2)
t.Cleanup(func() { require.NoError(t, s.Stop(storeGateway1, storeGateway2)) })
require.NoError(t, s.StartAndWaitReady(storeGateway1, storeGateway2))
// Start the query-frontend but do not check for readiness yet.
queryFrontend := e2emimir.NewQueryFrontend("query-frontend", flags)
t.Cleanup(func() { require.NoError(t, s.Stop(queryFrontend)) })
require.NoError(t, s.Start(queryFrontend))
// Configure the querier to connect to the query-frontend.
flags["-querier.frontend-address"] = queryFrontend.NetworkGRPCEndpoint()
// Start the querier with configuring store-gateway addresses if sharding is disabled.
querier := e2emimir.NewQuerier("querier", consul.NetworkHTTPEndpoint(), flags)
t.Cleanup(func() { require.NoError(t, s.Stop(querier)) })
require.NoError(t, s.StartAndWaitReady(querier))
require.NoError(t, s.WaitReady(queryFrontend))
// Wait until the querier has updated the ring. The querier will also watch
// the store-gateway ring if blocks sharding is enabled.
require.NoError(t, querier.WaitSumMetrics(e2e.Equals(float64(512+(512*storeGateways.NumInstances()))), "cortex_ring_tokens_total"))
// Wait until the store-gateway has synched the new uploaded blocks. When sharding is enabled
// we don't known which store-gateway instance will synch the blocks, so we need to wait on
// metrics extracted from all instances.
require.NoError(t, storeGateways.WaitSumMetrics(e2e.Equals(2), "cortex_bucket_store_blocks_loaded"))
// Check how many tenants have been discovered and synced by store-gateways.
require.NoError(t, storeGateways.WaitSumMetrics(e2e.Equals(float64(1*storeGateways.NumInstances())), "cortex_bucket_stores_tenants_discovered"))
if testCfg.tenantShardSize > 0 {
require.NoError(t, storeGateways.WaitSumMetrics(e2e.Equals(float64(1)), "cortex_bucket_stores_tenants_synced"))
} else {
require.NoError(t, storeGateways.WaitSumMetrics(e2e.Equals(float64(1*storeGateways.NumInstances())), "cortex_bucket_stores_tenants_synced"))
}
// Query back the series (1 only in the storage, 1 only in the ingesters, 1 on both).
expectedFetchedSeries := 0
instantQueriesCount := 0
c, err := e2emimir.NewClient("", queryFrontend.HTTPEndpoint(), "", "", "user-1")
require.NoError(t, err)
instantQueriesCount++
result, err := c.Query(series1Name, series1Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector1, result.(model.Vector))
expectedFetchedSeries++ // Storage only.
// thanos_store_index_cache_requests_total: ExpandedPostings: 1, Postings: 1, Series: 1
instantQueriesCount++
result, err = c.Query(series2Name, series2Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector2, result.(model.Vector))
expectedFetchedSeries += 2 // Ingester + storage.
// thanos_store_index_cache_requests_total: ExpandedPostings: 3, Postings: 2, Series: 2
instantQueriesCount++
result, err = c.Query(series3Name, series3Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector3, result.(model.Vector))
expectedFetchedSeries++ // Ingester only.
// thanos_store_index_cache_requests_total: ExpandedPostings: 5, Postings: 2, Series: 2
instantQueriesCount++
// Make sure the querier is using the bucket index blocks finder.
require.NoError(t, querier.WaitSumMetrics(e2e.Greater(0), "cortex_bucket_index_loads_total"))
comparingFunction := e2e.Equals
if streamingEnabled {
// Some metrics can be higher when streaming is enabled. The exact number is not deterministic in every case.
comparingFunction = e2e.GreaterOrEqual
}
// Check the in-memory index cache metrics (in the store-gateway).
require.NoError(t, storeGateways.WaitSumMetrics(comparingFunction(9), "thanos_store_index_cache_requests_total")) // 5 + 2 + 2
require.NoError(t, storeGateways.WaitSumMetrics(comparingFunction(0), "thanos_store_index_cache_hits_total")) // no cache hit cause the cache was empty
if testCfg.indexCacheBackend == tsdb.IndexCacheBackendInMemory {
require.NoError(t, storeGateways.WaitSumMetrics(e2e.Equals(2*2+2+3), "thanos_store_index_cache_items")) // 2 series both for postings and series cache, 2 expanded postings on one block, 3 on another one
require.NoError(t, storeGateways.WaitSumMetrics(e2e.Equals(2*2+2+3), "thanos_store_index_cache_items_added_total")) // 2 series both for postings and series cache, 2 expanded postings on one block, 3 on another one
} else if testCfg.indexCacheBackend == tsdb.IndexCacheBackendMemcached {
require.NoError(t, storeGateways.WaitSumMetrics(comparingFunction(9*2), "thanos_cache_operations_total")) // one set for each get
}
// Query back again the 1st series from storage. This time it should use the index cache.
result, err = c.Query(series1Name, series1Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector1, result.(model.Vector))
expectedFetchedSeries++ // Storage only.
require.NoError(t, storeGateways.WaitSumMetrics(comparingFunction(9+2), "thanos_store_index_cache_requests_total"))
require.NoError(t, storeGateways.WaitSumMetrics(comparingFunction(2), "thanos_store_index_cache_hits_total")) // this time has used the index cache
if testCfg.indexCacheBackend == tsdb.IndexCacheBackendInMemory {
require.NoError(t, storeGateways.WaitSumMetrics(e2e.Equals(2*2+2+3), "thanos_store_index_cache_items")) // as before
require.NoError(t, storeGateways.WaitSumMetrics(e2e.Equals(2*2+2+3), "thanos_store_index_cache_items_added_total")) // as before
} else if testCfg.indexCacheBackend == tsdb.IndexCacheBackendMemcached {
require.NoError(t, storeGateways.WaitSumMetrics(comparingFunction(9*2+2), "thanos_cache_operations_total")) // as before + 2 gets (expanded postings and series)
}
// Query range. We expect 1 data point with a value of 3 (number of series).
// Run this query multiple times to ensure each time we get the same result.
const numRangeQueries = 10
for i := 0; i < numRangeQueries; i++ {
result, err = c.QueryRange(`count({__name__=~"series.*"})`, series3Timestamp, series3Timestamp, time.Minute)
require.NoError(t, err)
require.Equal(t, model.ValMatrix, result.Type())
matrix := result.(model.Matrix)
require.Equal(t, 1, len(matrix))
require.Equal(t, 1, len(matrix[0].Values))
assert.Equal(t, model.SampleValue(3), matrix[0].Values[0].Value)
expectedFetchedSeries += 4 // series_2 is fetched both from ingester and storage, while other series are fetched either from ingester or storage.
}
// This instant query can be sharded.
result, err = c.Query(`count({__name__=~"series.*"})`, series3Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
vector := result.(model.Vector)
require.Equal(t, 1, len(vector))
require.Equal(t, model.SampleValue(3), vector[0].Value)
instantQueriesCount++
expectedFetchedSeries += 4 // series_2 is fetched both from ingester and storage, while other series are fetched either from ingester or storage.
// When query sharding is enabled, we expect the range & instant queries above to be sharded.
if testCfg.queryShardingEnabled {
require.NoError(t, queryFrontend.WaitSumMetrics(e2e.Equals(numRangeQueries+float64(instantQueriesCount)), "cortex_frontend_query_sharding_rewrites_attempted_total"))
require.NoError(t, queryFrontend.WaitSumMetrics(e2e.Equals(numRangeQueries+1), "cortex_frontend_query_sharding_rewrites_succeeded_total"))
require.NoError(t, queryFrontend.WaitSumMetrics(e2e.Equals((numRangeQueries+1)*16), "cortex_frontend_sharded_queries_total"))
}
// Check query stats (supported only when gRPC streaming is enabled).
require.NoError(t, queryFrontend.WaitSumMetrics(e2e.Equals(float64(expectedFetchedSeries)), "cortex_query_fetched_series_total"))
// Query metadata.
testMetadataQueriesWithBlocksStorage(t, c, series1[0], series2[0], series3[0], blockRangePeriod)
// Ensure no service-specific metrics prefix is used by the wrong service.
assertServiceMetricsPrefixes(t, Distributor, distributor)
assertServiceMetricsPrefixes(t, Ingester, ingester)
assertServiceMetricsPrefixes(t, Querier, querier)
assertServiceMetricsPrefixes(t, StoreGateway, storeGateway1)
assertServiceMetricsPrefixes(t, StoreGateway, storeGateway2)
})
}
}
func TestQuerierWithBlocksStorageRunningInSingleBinaryMode(t *testing.T) {
tests := map[string]struct {
indexCacheBackend string
queryShardingEnabled bool
}{
"inmemory index cache": {
indexCacheBackend: tsdb.IndexCacheBackendInMemory,
},
"memcached index cache": {
indexCacheBackend: tsdb.IndexCacheBackendMemcached,
},
"inmemory index cache, query sharding enabled": {
indexCacheBackend: tsdb.IndexCacheBackendInMemory,
queryShardingEnabled: true,
},
}
for testName, testCfg := range tests {
t.Run(testName, func(t *testing.T) {
const blockRangePeriod = 5 * time.Second
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, blocksBucketName)
memcached := e2ecache.NewMemcached()
require.NoError(t, s.StartAndWaitReady(consul, minio, memcached))
// Setting the replication factor equal to the number of Mimir replicas
// make sure each replica creates the same blocks, so the total number of
// blocks is stable and easy to assert on.
const seriesReplicationFactor = 2
// Configure the blocks storage to frequently compact TSDB head
// and ship blocks to the storage.
flags := mergeFlags(BlocksStorageFlags(), BlocksStorageS3Flags(), map[string]string{
"-blocks-storage.tsdb.block-ranges-period": blockRangePeriod.String(),
"-blocks-storage.tsdb.ship-interval": "1s",
"-blocks-storage.bucket-store.sync-interval": "1s",
"-blocks-storage.tsdb.retention-period": ((blockRangePeriod * 2) - 1).String(),
"-blocks-storage.bucket-store.index-cache.backend": testCfg.indexCacheBackend,
"-blocks-storage.bucket-store.index-cache.memcached.addresses": "dns+" + memcached.NetworkEndpoint(e2ecache.MemcachedPort),
// Ingester.
"-ingester.ring.store": "consul",
"-ingester.ring.consul.hostname": consul.NetworkHTTPEndpoint(),
// Distributor.
"-ingester.ring.replication-factor": strconv.FormatInt(seriesReplicationFactor, 10),
"-distributor.ring.store": "consul",
"-distributor.ring.consul.hostname": consul.NetworkHTTPEndpoint(),
// Store-gateway.
"-store-gateway.sharding-ring.store": "consul",
"-store-gateway.sharding-ring.consul.hostname": consul.NetworkHTTPEndpoint(),
"-store-gateway.sharding-ring.replication-factor": "1",
"-compactor.ring.store": "consul",
"-compactor.ring.consul.hostname": consul.NetworkHTTPEndpoint(),
"-compactor.cleanup-interval": "2s", // Update bucket index often.
// Query-frontend.
"-query-frontend.parallelize-shardable-queries": strconv.FormatBool(testCfg.queryShardingEnabled),
})
// Start Mimir replicas.
mimir1 := e2emimir.NewSingleBinary("mimir-1", e2e.MergeFlags(DefaultSingleBinaryFlags(), flags))
mimir2 := e2emimir.NewSingleBinary("mimir-2", e2e.MergeFlags(DefaultSingleBinaryFlags(), flags))
cluster := e2emimir.NewCompositeMimirService(mimir1, mimir2)
require.NoError(t, s.StartAndWaitReady(mimir1, mimir2))
// Wait until Mimir replicas have updated the ring state.
for _, replica := range cluster.Instances() {
numTokensPerInstance := 512 // Ingesters ring.
numTokensPerInstance++ // Distributors ring
numTokensPerInstance += 512 // Compactor ring.
numTokensPerInstance += 512 * 2 // Store-gateway ring (read both by the querier and store-gateway).
require.NoError(t, replica.WaitSumMetrics(e2e.Equals(float64(numTokensPerInstance*cluster.NumInstances())), "cortex_ring_tokens_total"))
}
c, err := e2emimir.NewClient(mimir1.HTTPEndpoint(), mimir2.HTTPEndpoint(), "", "", "user-1")
require.NoError(t, err)
// Push some series to Mimir.
series1Name := "series_1"
series2Name := "series_2"
series1Timestamp := time.Now()
series2Timestamp := series1Timestamp.Add(blockRangePeriod * 2)
series1, expectedVector1, _ := generateFloatSeries(series1Name, series1Timestamp, prompb.Label{Name: series1Name, Value: series1Name})
series2, expectedVector2, _ := generateHistogramSeries(series2Name, series2Timestamp, prompb.Label{Name: series2Name, Value: series2Name})
res, err := c.Push(series1)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
res, err = c.Push(series2)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
// Wait until the TSDB head is compacted and shipped to the storage.
// The shipped block contains the 1st series, while the 2nd series is in the head.
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(1*cluster.NumInstances())), "cortex_ingester_shipper_uploads_total"))
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(1*cluster.NumInstances())), "cortex_ingester_memory_series"))
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(2*cluster.NumInstances())), "cortex_ingester_memory_series_created_total"))
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(1*cluster.NumInstances())), "cortex_ingester_memory_series_removed_total"))
// Push another series to further compact another block and delete the first block
// due to expired retention.
series3Name := "series_3"
series3Timestamp := series2Timestamp.Add(blockRangePeriod * 2)
series3, expectedVector3, _ := generateFloatSeries(series3Name, series3Timestamp, prompb.Label{Name: series3Name, Value: series3Name})
res, err = c.Push(series3)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(2*cluster.NumInstances())), "cortex_ingester_shipper_uploads_total"))
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(1*cluster.NumInstances())), "cortex_ingester_memory_series"))
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(3*cluster.NumInstances())), "cortex_ingester_memory_series_created_total"))
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(2*cluster.NumInstances())), "cortex_ingester_memory_series_removed_total"))
// Wait until the store-gateway has synched the new uploaded blocks. The number of blocks loaded
// may be greater than expected if the compactor is running (there may have been compacted).
const shippedBlocks = 2
require.NoError(t, cluster.WaitSumMetrics(e2e.GreaterOrEqual(float64(shippedBlocks*seriesReplicationFactor)), "cortex_bucket_store_blocks_loaded"))
// Start the compactor to have the bucket index created before querying.
compactor := e2emimir.NewCompactor("compactor", consul.NetworkHTTPEndpoint(), flags)
require.NoError(t, s.StartAndWaitReady(compactor))
var expectedCacheRequests int
// Query back the series (1 only in the storage, 1 only in the ingesters, 1 on both).
// For every series in a block we expect
// - 1 cache request for expanded postings
// - 1 cache request for postings for each matcher (provided matchers are simple MatchEQ matchers)
// - 1 cache request for each series
//
// If the series does not exist in the block, then we return early after checking expanded postings and
// subsequently the index on disk.
result, err := c.Query(series1Name, series1Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector1, result.(model.Vector))
expectedCacheRequests += seriesReplicationFactor * 3 // expanded postings, postings, series
result, err = c.Query(series2Name, series2Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector2, result.(model.Vector))
expectedCacheRequests += seriesReplicationFactor*3 + seriesReplicationFactor // expanded postings, postings, series for 1 time range; only expaned postings for another
result, err = c.Query(series3Name, series3Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector3, result.(model.Vector))
expectedCacheRequests += seriesReplicationFactor * 2 // expanded postings for 2 time ranges
expectedMemcachedOps := 2 * expectedCacheRequests // Same reasoning as for expectedCacheRequests, but this also includes a set for each get
// Check the in-memory index cache metrics (in the store-gateway).
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(expectedCacheRequests)), "thanos_store_index_cache_requests_total"))
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(0), "thanos_store_index_cache_hits_total")) // no cache hit cause the cache was empty
if testCfg.indexCacheBackend == tsdb.IndexCacheBackendInMemory {
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64((2*2+2+3)*seriesReplicationFactor)), "thanos_store_index_cache_items")) // 2 series both for postings and series cache, 2 expanded postings on one block, 3 on another one
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64((2*2+2+3)*seriesReplicationFactor)), "thanos_store_index_cache_items_added_total")) // 2 series both for postings and series cache, 2 expanded postings on one block, 3 on another one
} else if testCfg.indexCacheBackend == tsdb.IndexCacheBackendMemcached {
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(expectedMemcachedOps)), "thanos_cache_operations_total"))
}
// Query back again the 1st series from storage. This time it should use the index cache.
// It should get a hit on expanded postings; this means that it will not request individual postings for matchers.
// It should get a hit on series.
// We expect 3 cache requests and 3 cache hits.
result, err = c.Query(series1Name, series1Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector1, result.(model.Vector))
expectedCacheRequests += seriesReplicationFactor * 2 // expanded postings and series
expectedMemcachedOps += seriesReplicationFactor * 2 // there is no set after the gets this time
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(expectedCacheRequests)), "thanos_store_index_cache_requests_total"))
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(2*seriesReplicationFactor)), "thanos_store_index_cache_hits_total")) // this time has used the index cache
if testCfg.indexCacheBackend == tsdb.IndexCacheBackendInMemory {
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64((2*2+2+3)*seriesReplicationFactor)), "thanos_store_index_cache_items")) // as before
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64((2*2+2+3)*seriesReplicationFactor)), "thanos_store_index_cache_items_added_total")) // as before
} else if testCfg.indexCacheBackend == tsdb.IndexCacheBackendMemcached {
require.NoError(t, cluster.WaitSumMetrics(e2e.Equals(float64(expectedMemcachedOps)), "thanos_cache_operations_total"))
}
// Query metadata.
testMetadataQueriesWithBlocksStorage(t, c, series1[0], series2[0], series3[0], blockRangePeriod)
})
}
}
func TestStreamingPromQLEngine(t *testing.T) {
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
flags := mergeFlags(BlocksStorageFlags(), BlocksStorageS3Flags(), map[string]string{
"-querier.promql-engine": "streaming",
})
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, flags["-blocks-storage.s3.bucket-name"])
require.NoError(t, s.StartAndWaitReady(consul, minio))
distributor := e2emimir.NewDistributor("distributor", consul.NetworkHTTPEndpoint(), flags)
ingester := e2emimir.NewIngester("ingester", consul.NetworkHTTPEndpoint(), flags)
querier := e2emimir.NewQuerier("querier", consul.NetworkHTTPEndpoint(), flags)
require.NoError(t, s.StartAndWaitReady(distributor, ingester, querier))
// Wait until the distributor and querier have updated the ring.
// The distributor should have 512 tokens for the ingester ring and 1 for the distributor ring,
// and the querier should have 512 tokens for the ingester ring.
require.NoError(t, distributor.WaitSumMetrics(e2e.Equals(512+1), "cortex_ring_tokens_total"))
require.NoError(t, querier.WaitSumMetrics(e2e.Equals(512), "cortex_ring_tokens_total"))
// Push a series to Mimir.
writeClient, err := e2emimir.NewClient(distributor.HTTPEndpoint(), "", "", "", "user-1")
require.NoError(t, err)
seriesName := "series_1"
seriesTimestamp := time.Now()
series, expectedVector, _ := generateFloatSeries(seriesName, seriesTimestamp, prompb.Label{Name: seriesName, Value: seriesName})
res, err := writeClient.Push(series)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
// Query back the same series using the streaming PromQL engine.
c, err := e2emimir.NewClient("", querier.HTTPEndpoint(), "", "", "user-1")
require.NoError(t, err)
result, err := c.Query(seriesName, seriesTimestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector, result.(model.Vector))
}
func testMetadataQueriesWithBlocksStorage(
t *testing.T,
c *e2emimir.Client,
lastSeriesInStorage prompb.TimeSeries,
lastSeriesInIngesterBlocks prompb.TimeSeries,
firstSeriesInIngesterHead prompb.TimeSeries,
blockRangePeriod time.Duration,
) {
// This is hacky, don't use for anything serious
timeStampFromSeries := func(ts prompb.TimeSeries) time.Time {
if len(ts.Samples) > 0 {
return util.TimeFromMillis(ts.Samples[0].Timestamp)
}
if len(ts.Histograms) > 0 {
return util.TimeFromMillis(ts.Histograms[0].Timestamp)
}
panic("No samples or histograms")
}
var (
lastSeriesInIngesterBlocksName = getMetricName(lastSeriesInIngesterBlocks.Labels)
firstSeriesInIngesterHeadName = getMetricName(firstSeriesInIngesterHead.Labels)
lastSeriesInStorageName = getMetricName(lastSeriesInStorage.Labels)
lastSeriesInStorageTs = timeStampFromSeries(lastSeriesInStorage)
lastSeriesInIngesterBlocksTs = timeStampFromSeries(lastSeriesInIngesterBlocks)
firstSeriesInIngesterHeadTs = timeStampFromSeries(firstSeriesInIngesterHead)
)
type seriesTest struct {
lookup string
ok bool
resp []prompb.Label
}
type labelValuesTest struct {
matches []string
resp []string
}
testCases := map[string]struct {
from time.Time
to time.Time
seriesTests []seriesTest
labelValuesTests []labelValuesTest
labelNames []string
}{
"query metadata entirely inside the head range": {
from: firstSeriesInIngesterHeadTs,
to: firstSeriesInIngesterHeadTs.Add(blockRangePeriod),
seriesTests: []seriesTest{
{
lookup: firstSeriesInIngesterHeadName,
ok: true,
resp: firstSeriesInIngesterHead.Labels,
},
{
lookup: lastSeriesInIngesterBlocksName,
ok: false,
},
{
lookup: lastSeriesInStorageName,
ok: false,
},
},
labelValuesTests: []labelValuesTest{
{
resp: []string{firstSeriesInIngesterHeadName},
},
{
resp: []string{firstSeriesInIngesterHeadName},
matches: []string{firstSeriesInIngesterHeadName},
},
{
resp: []string{},
matches: []string{lastSeriesInStorageName},
},
},
labelNames: []string{labels.MetricName, firstSeriesInIngesterHeadName},
},
"query metadata entirely inside the ingester range but outside the head range": {
from: lastSeriesInIngesterBlocksTs,
to: lastSeriesInIngesterBlocksTs.Add(blockRangePeriod / 2),
seriesTests: []seriesTest{
{
lookup: firstSeriesInIngesterHeadName,
ok: false,
},
{
lookup: lastSeriesInIngesterBlocksName,
ok: true,
resp: lastSeriesInIngesterBlocks.Labels,
},
{
lookup: lastSeriesInStorageName,
ok: false,
},
},
labelValuesTests: []labelValuesTest{
{
resp: []string{lastSeriesInIngesterBlocksName},
},
{
resp: []string{lastSeriesInIngesterBlocksName},
matches: []string{lastSeriesInIngesterBlocksName},
},
{
resp: []string{},
matches: []string{firstSeriesInIngesterHeadName},
},
},
labelNames: []string{labels.MetricName, lastSeriesInIngesterBlocksName},
},
"query metadata partially inside the ingester range": {
from: lastSeriesInStorageTs.Add(-blockRangePeriod),
to: firstSeriesInIngesterHeadTs.Add(blockRangePeriod),
seriesTests: []seriesTest{
{
lookup: firstSeriesInIngesterHeadName,
ok: true,
resp: firstSeriesInIngesterHead.Labels,
},
{
lookup: lastSeriesInIngesterBlocksName,
ok: true,
resp: lastSeriesInIngesterBlocks.Labels,
},
{
lookup: lastSeriesInStorageName,
ok: true,
resp: lastSeriesInStorage.Labels,
},
},
labelValuesTests: []labelValuesTest{
{
resp: []string{lastSeriesInStorageName, lastSeriesInIngesterBlocksName, firstSeriesInIngesterHeadName},
},
{
resp: []string{lastSeriesInStorageName},
matches: []string{lastSeriesInStorageName},
},
{
resp: []string{lastSeriesInIngesterBlocksName},
matches: []string{lastSeriesInIngesterBlocksName},
},
{
resp: []string{lastSeriesInStorageName, lastSeriesInIngesterBlocksName},
matches: []string{lastSeriesInStorageName, lastSeriesInIngesterBlocksName},
},
},
labelNames: []string{labels.MetricName, lastSeriesInStorageName, lastSeriesInIngesterBlocksName, firstSeriesInIngesterHeadName},
},
"query metadata entirely outside the ingester range should not return the head data": {
from: lastSeriesInStorageTs.Add(-2 * blockRangePeriod),
to: lastSeriesInStorageTs,
seriesTests: []seriesTest{
{
lookup: firstSeriesInIngesterHeadName,
ok: false,
resp: firstSeriesInIngesterHead.Labels,
},
{
lookup: lastSeriesInIngesterBlocksName,
ok: false,
},
{
lookup: lastSeriesInStorageName,
ok: true,
resp: lastSeriesInStorage.Labels,
},
},
labelValuesTests: []labelValuesTest{
{
resp: []string{lastSeriesInStorageName},
},
{
resp: []string{lastSeriesInStorageName},
matches: []string{lastSeriesInStorageName},
},
{
resp: []string{},
matches: []string{firstSeriesInIngesterHeadName},
},
},
labelNames: []string{labels.MetricName, lastSeriesInStorageName},
},
}
for name, tc := range testCases {
t.Run(name, func(t *testing.T) {
for _, st := range tc.seriesTests {
seriesRes, err := c.Series([]string{st.lookup}, tc.from, tc.to)
require.NoError(t, err)
if st.ok {
require.Equal(t, 1, len(seriesRes), st)
require.Equal(t, model.LabelSet(prompbLabelsToModelMetric(st.resp)), seriesRes[0], st)
} else {
require.Equal(t, 0, len(seriesRes), st)
}
}
for _, lvt := range tc.labelValuesTests {
labelsRes, err := c.LabelValues(labels.MetricName, tc.from, tc.to, lvt.matches)
require.NoError(t, err)
exp := model.LabelValues{}
for _, val := range lvt.resp {
exp = append(exp, model.LabelValue(val))
}
require.Equal(t, exp, labelsRes, lvt)
}
labelNames, err := c.LabelNames(tc.from, tc.to)
require.NoError(t, err)
require.Equal(t, tc.labelNames, labelNames)
})
}
}
func TestQuerierWithBlocksStorageOnMissingBlocksFromStorage(t *testing.T) {
const blockRangePeriod = 5 * time.Second
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Configure the blocks storage to frequently compact TSDB head
// and ship blocks to the storage.
flags := mergeFlags(BlocksStorageFlags(), BlocksStorageS3Flags(), map[string]string{
"-blocks-storage.tsdb.block-ranges-period": blockRangePeriod.String(),
"-blocks-storage.tsdb.ship-interval": "1s",
"-blocks-storage.tsdb.retention-period": ((blockRangePeriod * 2) - 1).String(),
})
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, flags["-blocks-storage.s3.bucket-name"])
require.NoError(t, s.StartAndWaitReady(consul, minio))
// Start Mimir components for the write path.
distributor := e2emimir.NewDistributor("distributor", consul.NetworkHTTPEndpoint(), flags)
ingester := e2emimir.NewIngester("ingester", consul.NetworkHTTPEndpoint(), flags)
require.NoError(t, s.StartAndWaitReady(distributor, ingester))
// Wait until the distributor has updated the ring.
// The distributor should have 512 tokens for the ingester ring and 1 for the distributor ring
require.NoError(t, distributor.WaitSumMetrics(e2e.Equals(512+1), "cortex_ring_tokens_total"))
// Push some series to Mimir.
c, err := e2emimir.NewClient(distributor.HTTPEndpoint(), "", "", "", "user-1")
require.NoError(t, err)
series1Name := "series_1"
series2Name := "series_2"
series1Timestamp := time.Now()
series2Timestamp := series1Timestamp.Add(blockRangePeriod * 2)
series1, expectedVector1, _ := generateFloatSeries(series1Name, series1Timestamp)
series2, expectedVector2, _ := generateHistogramSeries(series2Name, series2Timestamp)
res, err := c.Push(series1)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
res, err = c.Push(series2)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
// Wait until the TSDB head is compacted and shipped to the storage.
// The shipped block contains the 1st series, while the 2nd series in in the head.
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(1), "cortex_ingester_shipper_uploads_total"))
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(2), "cortex_ingester_memory_series_created_total"))
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(1), "cortex_ingester_memory_series_removed_total"))
require.NoError(t, ingester.WaitSumMetrics(e2e.Equals(1), "cortex_ingester_memory_series"))
// Start the compactor to have the bucket index created before querying.
compactor := e2emimir.NewCompactor("compactor", consul.NetworkHTTPEndpoint(), flags)
require.NoError(t, s.StartAndWaitReady(compactor))
// Start the querier and store-gateway, and configure them to frequently sync blocks fast enough to trigger consistency check
// We will induce an error in the store gateway by deleting blocks and the querier ignores the direct error
// and relies on checking that all blocks were queried. However this consistency check will skip most recent
// blocks (less than 3*sync-interval age) as they could be unnoticed by the store-gateway and ingesters
// have them anyway. We turn down the sync-interval to speed up the test.
storeGateway := e2emimir.NewStoreGateway("store-gateway", consul.NetworkHTTPEndpoint(), mergeFlags(flags, map[string]string{
"-blocks-storage.bucket-store.sync-interval": "1s",
}))
querier := e2emimir.NewQuerier("querier", consul.NetworkHTTPEndpoint(), mergeFlags(flags, map[string]string{
"-blocks-storage.bucket-store.sync-interval": "1s",
}))
require.NoError(t, s.StartAndWaitReady(querier, storeGateway))
// Wait until the querier and store-gateway have updated the ring
require.NoError(t, querier.WaitSumMetrics(e2e.Equals(512*2), "cortex_ring_tokens_total"))
require.NoError(t, storeGateway.WaitSumMetrics(e2e.Equals(512), "cortex_ring_tokens_total"))
// Wait until the blocks are old enough for consistency check
// 1 sync on startup, 3 to go over the consistency check limit explained above
require.NoError(t, storeGateway.WaitSumMetrics(e2e.GreaterOrEqual(1+3), "cortex_blocks_meta_syncs_total"))
// Query back the series.
c, err = e2emimir.NewClient("", querier.HTTPEndpoint(), "", "", "user-1")
require.NoError(t, err)
result, err := c.Query(series1Name, series1Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector1, result.(model.Vector))
result, err = c.Query(series2Name, series2Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector2, result.(model.Vector))
// Delete all blocks from the storage.
storage, err := e2emimir.NewS3ClientForMinio(minio, flags["-blocks-storage.s3.bucket-name"])
require.NoError(t, err)
require.NoError(t, storage.DeleteBlocks("user-1"))
// Query back again the series. Now we do expect a 500 error because the blocks are
// missing from the storage.
_, err = c.Query(series1Name, series1Timestamp)
require.Error(t, err)
assert.Contains(t, err.Error(), "500")
assert.Contains(t, err.(*promv1.Error).Detail, "failed to fetch some blocks")
// We expect this to still be queryable as it was not in the cleared storage
_, err = c.Query(series2Name, series2Timestamp)
require.NoError(t, err)
require.Equal(t, model.ValVector, result.Type())
assert.Equal(t, expectedVector2, result.(model.Vector))
}
func TestQueryLimitsWithBlocksStorageRunningInMicroServices(t *testing.T) {
const blockRangePeriod = 5 * time.Second
for _, streamingEnabled := range []bool{true, false} {
t.Run(fmt.Sprintf("store-gateway streaming enabled: %v", streamingEnabled), func(t *testing.T) {
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
// Configure the blocks storage to frequently compact TSDB head
// and ship blocks to the storage.
flags := mergeFlags(BlocksStorageFlags(), BlocksStorageS3Flags(), map[string]string{
"-blocks-storage.tsdb.block-ranges-period": blockRangePeriod.String(),
"-blocks-storage.tsdb.ship-interval": "1s",
"-blocks-storage.bucket-store.sync-interval": "1s",
"-blocks-storage.tsdb.retention-period": ((blockRangePeriod * 2) - 1).String(),
"-querier.max-fetched-series-per-query": "3",
"-querier.prefer-streaming-chunks-from-store-gateways": strconv.FormatBool(streamingEnabled),
})
// Start dependencies.
consul := e2edb.NewConsul()
minio := e2edb.NewMinio(9000, flags["-blocks-storage.s3.bucket-name"])
memcached := e2ecache.NewMemcached()
require.NoError(t, s.StartAndWaitReady(consul, minio, memcached))
// Add the memcached address to the flags.
flags["-blocks-storage.bucket-store.index-cache.memcached.addresses"] = "dns+" + memcached.NetworkEndpoint(e2ecache.MemcachedPort)
// Start Mimir components.
distributor := e2emimir.NewDistributor("distributor", consul.NetworkHTTPEndpoint(), flags)
ingester := e2emimir.NewIngester("ingester", consul.NetworkHTTPEndpoint(), flags)
storeGateway := e2emimir.NewStoreGateway("store-gateway", consul.NetworkHTTPEndpoint(), flags)
require.NoError(t, s.StartAndWaitReady(distributor, ingester, storeGateway))
querier := e2emimir.NewQuerier("querier", consul.NetworkHTTPEndpoint(), flags)
require.NoError(t, s.StartAndWaitReady(querier))
c, err := e2emimir.NewClient(distributor.HTTPEndpoint(), querier.HTTPEndpoint(), "", "", "user-1")
require.NoError(t, err)
// Push some series to Mimir.
series1Name := "series_1"
series2Name := "series_2"
series3Name := "series_3"
series4Name := "series_4"
series1Timestamp := time.Now()
series2Timestamp := series1Timestamp.Add(blockRangePeriod * 2)
series3Timestamp := series1Timestamp.Add(blockRangePeriod * 2)
series4Timestamp := series1Timestamp.Add(blockRangePeriod * 3)
series1, _, _ := generateFloatSeries(series1Name, series1Timestamp, prompb.Label{Name: series1Name, Value: series1Name})
series2, _, _ := generateHistogramSeries(series2Name, series2Timestamp, prompb.Label{Name: series2Name, Value: series2Name})
series3, _, _ := generateFloatSeries(series3Name, series3Timestamp, prompb.Label{Name: series3Name, Value: series3Name})
series4, _, _ := generateHistogramSeries(series4Name, series4Timestamp, prompb.Label{Name: series4Name, Value: series4Name})
res, err := c.Push(series1)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
res, err = c.Push(series2)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
result, err := c.QueryRange("{__name__=~\"series_.+\"}", series1Timestamp, series2Timestamp.Add(1*time.Hour), blockRangePeriod)
require.NoError(t, err)
require.Equal(t, model.ValMatrix, result.Type())
res, err = c.Push(series3)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
res, err = c.Push(series4)
require.NoError(t, err)
require.Equal(t, 200, res.StatusCode)
_, err = c.QueryRange("{__name__=~\"series_.+\"}", series1Timestamp, series4Timestamp.Add(1*time.Hour), blockRangePeriod)
require.Error(t, err)
assert.ErrorContains(t, err, "the query exceeded the maximum number of series")
})
}
}
func TestHashCollisionHandling(t *testing.T) {
s, err := e2e.NewScenario(networkName)
require.NoError(t, err)
defer s.Close()
flags := mergeFlags(
BlocksStorageFlags(),
BlocksStorageS3Flags(),
)
// Start dependencies.
minio := e2edb.NewMinio(9000, blocksBucketName)
consul := e2edb.NewConsul()
require.NoError(t, s.StartAndWaitReady(minio, consul))
// Start Mimir components for the write path.
distributor := e2emimir.NewDistributor("distributor", consul.NetworkHTTPEndpoint(), flags)
ingester := e2emimir.NewIngester("ingester", consul.NetworkHTTPEndpoint(), flags)
require.NoError(t, s.StartAndWaitReady(distributor, ingester))
// Wait until the distributor has updated the ring.
// The distributor should have 512 tokens for the ingester ring and 1 for the distributor ring
require.NoError(t, distributor.WaitSumMetrics(e2e.Equals(512+1), "cortex_ring_tokens_total"))