+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
package main
import (
+ "bytes"
+
+ "git.curoverse.com/arvados.git/sdk/go/arvados"
"git.curoverse.com/arvados.git/sdk/go/arvadosclient"
"git.curoverse.com/arvados.git/sdk/go/arvadostest"
+ "github.com/prometheus/client_golang/prometheus"
+ "github.com/prometheus/common/expfmt"
"gopkg.in/check.v1"
)
+func (s *UnitSuite) checkCacheMetrics(c *check.C, reg *prometheus.Registry, regs ...string) {
+ mfs, err := reg.Gather()
+ c.Check(err, check.IsNil)
+ buf := &bytes.Buffer{}
+ enc := expfmt.NewEncoder(buf, expfmt.FmtText)
+ for _, mf := range mfs {
+ c.Check(enc.Encode(mf), check.IsNil)
+ }
+ mm := buf.String()
+ for _, reg := range regs {
+ c.Check(mm, check.Matches, `(?ms).*collectioncache_`+reg+`\n.*`)
+ }
+}
+
func (s *UnitSuite) TestCache(c *check.C) {
arv, err := arvadosclient.MakeArvadosClient()
c.Assert(err, check.Equals, nil)
cache := DefaultConfig().Cache
+ cache.registry = prometheus.NewRegistry()
// Hit the same collection 5 times using the same token. Only
// the first req should cause an API call; the next 4 should
// hit all caches.
arv.ApiToken = arvadostest.AdminToken
+ var coll *arvados.Collection
for i := 0; i < 5; i++ {
- coll, err := cache.Get(arv, arvadostest.FooCollection, false)
+ coll, err = cache.Get(arv, arvadostest.FooCollection, false)
c.Check(err, check.Equals, nil)
c.Assert(coll, check.NotNil)
c.Check(coll.PortableDataHash, check.Equals, arvadostest.FooPdh)
c.Check(coll.ManifestText[:2], check.Equals, ". ")
}
- c.Check(cache.Stats().Requests, check.Equals, uint64(5))
- c.Check(cache.Stats().CollectionHits, check.Equals, uint64(4))
- c.Check(cache.Stats().PermissionHits, check.Equals, uint64(4))
- c.Check(cache.Stats().PDHHits, check.Equals, uint64(4))
- c.Check(cache.Stats().APICalls, check.Equals, uint64(1))
+ s.checkCacheMetrics(c, cache.registry,
+ "requests 5",
+ "hits 4",
+ "permission_hits 4",
+ "pdh_hits 4",
+ "api_calls 1")
// Hit the same collection 2 more times, this time requesting
// it by PDH and using a different token. The first req should
- // miss the permission cache. Both reqs should hit the
- // Collection cache and skip the API lookup.
+ // miss the permission cache and fetch the new manifest; the
+ // second should hit the Collection cache and skip the API
+ // lookup.
arv.ApiToken = arvadostest.ActiveToken
- for i := 0; i < 2; i++ {
- coll, err := cache.Get(arv, arvadostest.FooPdh, false)
- c.Check(err, check.Equals, nil)
- c.Assert(coll, check.NotNil)
- c.Check(coll.PortableDataHash, check.Equals, arvadostest.FooPdh)
- c.Check(coll.ManifestText[:2], check.Equals, ". ")
- }
- c.Check(cache.Stats().Requests, check.Equals, uint64(5+2))
- c.Check(cache.Stats().CollectionHits, check.Equals, uint64(4+2))
- c.Check(cache.Stats().PermissionHits, check.Equals, uint64(4+1))
- c.Check(cache.Stats().PDHHits, check.Equals, uint64(4+0))
- c.Check(cache.Stats().APICalls, check.Equals, uint64(1+1))
+
+ coll2, err := cache.Get(arv, arvadostest.FooPdh, false)
+ c.Check(err, check.Equals, nil)
+ c.Assert(coll2, check.NotNil)
+ c.Check(coll2.PortableDataHash, check.Equals, arvadostest.FooPdh)
+ c.Check(coll2.ManifestText[:2], check.Equals, ". ")
+ c.Check(coll2.ManifestText, check.Not(check.Equals), coll.ManifestText)
+
+ s.checkCacheMetrics(c, cache.registry,
+ "requests 6",
+ "hits 4",
+ "permission_hits 4",
+ "pdh_hits 4",
+ "api_calls 2")
+
+ coll2, err = cache.Get(arv, arvadostest.FooPdh, false)
+ c.Check(err, check.Equals, nil)
+ c.Assert(coll2, check.NotNil)
+ c.Check(coll2.PortableDataHash, check.Equals, arvadostest.FooPdh)
+ c.Check(coll2.ManifestText[:2], check.Equals, ". ")
+
+ s.checkCacheMetrics(c, cache.registry,
+ "requests 7",
+ "hits 5",
+ "permission_hits 5",
+ "pdh_hits 4",
+ "api_calls 2")
// Alternating between two collections N times should produce
// only 2 more API calls.
_, err := cache.Get(arv, target, false)
c.Check(err, check.Equals, nil)
}
- c.Check(cache.Stats().Requests, check.Equals, uint64(5+2+20))
- c.Check(cache.Stats().CollectionHits, check.Equals, uint64(4+2+18))
- c.Check(cache.Stats().PermissionHits, check.Equals, uint64(4+1+18))
- c.Check(cache.Stats().PDHHits, check.Equals, uint64(4+0+18))
- c.Check(cache.Stats().APICalls, check.Equals, uint64(1+1+2))
+ s.checkCacheMetrics(c, cache.registry,
+ "requests 27",
+ "hits 23",
+ "permission_hits 23",
+ "pdh_hits 22",
+ "api_calls 4")
}
func (s *UnitSuite) TestCacheForceReloadByPDH(c *check.C) {
c.Assert(err, check.Equals, nil)
cache := DefaultConfig().Cache
+ cache.registry = prometheus.NewRegistry()
for _, forceReload := range []bool{false, true, false, true} {
_, err := cache.Get(arv, arvadostest.FooPdh, forceReload)
c.Check(err, check.Equals, nil)
}
- c.Check(cache.Stats().Requests, check.Equals, uint64(4))
- c.Check(cache.Stats().CollectionHits, check.Equals, uint64(3))
- c.Check(cache.Stats().PermissionHits, check.Equals, uint64(1))
- c.Check(cache.Stats().PDHHits, check.Equals, uint64(0))
- c.Check(cache.Stats().APICalls, check.Equals, uint64(3))
+ s.checkCacheMetrics(c, cache.registry,
+ "requests 4",
+ "hits 3",
+ "permission_hits 1",
+ "pdh_hits 0",
+ "api_calls 3")
}
func (s *UnitSuite) TestCacheForceReloadByUUID(c *check.C) {
c.Assert(err, check.Equals, nil)
cache := DefaultConfig().Cache
+ cache.registry = prometheus.NewRegistry()
for _, forceReload := range []bool{false, true, false, true} {
_, err := cache.Get(arv, arvadostest.FooCollection, forceReload)
c.Check(err, check.Equals, nil)
}
- c.Check(cache.Stats().Requests, check.Equals, uint64(4))
- c.Check(cache.Stats().CollectionHits, check.Equals, uint64(3))
- c.Check(cache.Stats().PermissionHits, check.Equals, uint64(1))
- c.Check(cache.Stats().PDHHits, check.Equals, uint64(3))
- c.Check(cache.Stats().APICalls, check.Equals, uint64(3))
+ s.checkCacheMetrics(c, cache.registry,
+ "requests 4",
+ "hits 3",
+ "permission_hits 1",
+ "pdh_hits 3",
+ "api_calls 3")
}
projects / arvados.git / blobdiff