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[feature] Prune timelines once per hour to plug memory leak (#1117)

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* export highest/lowest ULIDs as proper const

* add stop + start to timeline manager, other small fixes

* unexport unused interface funcs + tidy up

* add LastGot func

* add timeline Prune function

* test prune

* update lastGot
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tobi 2022-11-22 19:38:10 +01:00 • committed by GitHub
commit 50dc179d33
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16 changed files with 594 additions and 602 deletions
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165
internal/timeline/get_test.go
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@ -89,6 +89,9 @@ func (suite *GetTestSuite) TearDownTest() {
}
func (suite *GetTestSuite) TestGetDefault() {
// lastGot should be zero
suite.Zero(suite.timeline.LastGot())
// get 10 20 the top and don't prepare the next query
statuses, err := suite.timeline.Get(context.Background(), 20, "", "", "", false)
if err != nil {
@ -108,6 +111,9 @@ func (suite *GetTestSuite) TestGetDefault() {
highest = s.GetID()
}
}
// lastGot should be up to date
suite.WithinDuration(time.Now(), suite.timeline.LastGot(), 1*time.Second)
}
func (suite *GetTestSuite) TestGetDefaultPrepareNext() {
@ -297,165 +303,6 @@ func (suite *GetTestSuite) TestGetBetweenIDPrepareNext() {
time.Sleep(1 * time.Second)
}
func (suite *GetTestSuite) TestGetXFromTop() {
// get 5 from the top
statuses, err := suite.timeline.GetXFromTop(context.Background(), 5)
if err != nil {
suite.FailNow(err.Error())
}
suite.Len(statuses, 5)
// statuses should be sorted highest to lowest ID
var highest string
for i, s := range statuses {
if i == 0 {
highest = s.GetID()
} else {
suite.Less(s.GetID(), highest)
highest = s.GetID()
}
}
}
func (suite *GetTestSuite) TestGetXBehindID() {
// get 3 behind the 'middle' id
var attempts *int
a := 0
attempts = &a
statuses, err := suite.timeline.GetXBehindID(context.Background(), 3, "01F8MHBQCBTDKN6X5VHGMMN4MA", attempts)
if err != nil {
suite.FailNow(err.Error())
}
suite.Len(statuses, 3)
// statuses should be sorted highest to lowest ID
// all status IDs should be less than the behindID
var highest string
for i, s := range statuses {
if i == 0 {
highest = s.GetID()
} else {
suite.Less(s.GetID(), highest)
highest = s.GetID()
}
suite.Less(s.GetID(), "01F8MHBQCBTDKN6X5VHGMMN4MA")
}
}
func (suite *GetTestSuite) TestGetXBehindID0() {
// try to get behind 0, the lowest possible ID
var attempts *int
a := 0
attempts = &a
statuses, err := suite.timeline.GetXBehindID(context.Background(), 3, "0", attempts)
if err != nil {
suite.FailNow(err.Error())
}
// there's nothing beyond it so len should be 0
suite.Len(statuses, 0)
}
func (suite *GetTestSuite) TestGetXBehindNonexistentReasonableID() {
// try to get behind an id that doesn't exist, but is close to one that does so we should still get statuses back
var attempts *int
a := 0
attempts = &a
statuses, err := suite.timeline.GetXBehindID(context.Background(), 3, "01F8MHBQCBTDKN6X5VHGMMN4MB", attempts) // change the last A to a B
if err != nil {
suite.FailNow(err.Error())
}
suite.Len(statuses, 3)
// statuses should be sorted highest to lowest ID
// all status IDs should be less than the behindID
var highest string
for i, s := range statuses {
if i == 0 {
highest = s.GetID()
} else {
suite.Less(s.GetID(), highest)
highest = s.GetID()
}
suite.Less(s.GetID(), "01F8MHBCN8120SYH7D5S050MGK")
}
}
func (suite *GetTestSuite) TestGetXBehindVeryHighID() {
// try to get behind an id that doesn't exist, and is higher than any other ID we could possibly have
var attempts *int
a := 0
attempts = &a
statuses, err := suite.timeline.GetXBehindID(context.Background(), 7, "9998MHBQCBTDKN6X5VHGMMN4MA", attempts)
if err != nil {
suite.FailNow(err.Error())
}
// we should get all 7 statuses we asked for because they all have lower IDs than the very high ID given in the query
suite.Len(statuses, 7)
// statuses should be sorted highest to lowest ID
// all status IDs should be less than the behindID
var highest string
for i, s := range statuses {
if i == 0 {
highest = s.GetID()
} else {
suite.Less(s.GetID(), highest)
highest = s.GetID()
}
suite.Less(s.GetID(), "9998MHBQCBTDKN6X5VHGMMN4MA")
}
}
func (suite *GetTestSuite) TestGetXBeforeID() {
// get 3 before the 'middle' id
statuses, err := suite.timeline.GetXBeforeID(context.Background(), 3, "01F8MHBQCBTDKN6X5VHGMMN4MA", true)
if err != nil {
suite.FailNow(err.Error())
}
suite.Len(statuses, 3)
// statuses should be sorted highest to lowest ID
// all status IDs should be greater than the beforeID
var highest string
for i, s := range statuses {
if i == 0 {
highest = s.GetID()
} else {
suite.Less(s.GetID(), highest)
highest = s.GetID()
}
suite.Greater(s.GetID(), "01F8MHBQCBTDKN6X5VHGMMN4MA")
}
}
func (suite *GetTestSuite) TestGetXBeforeIDNoStartFromTop() {
// get 3 before the 'middle' id
statuses, err := suite.timeline.GetXBeforeID(context.Background(), 3, "01F8MHBQCBTDKN6X5VHGMMN4MA", false)
if err != nil {
suite.FailNow(err.Error())
}
suite.Len(statuses, 3)
// statuses should be sorted lowest to highest ID
// all status IDs should be greater than the beforeID
var lowest string
for i, s := range statuses {
if i == 0 {
lowest = s.GetID()
} else {
suite.Greater(s.GetID(), lowest)
lowest = s.GetID()
}
suite.Greater(s.GetID(), "01F8MHBQCBTDKN6X5VHGMMN4MA")
}
}
func TestGetTestSuite(t *testing.T) {
suite.Run(t, new(GetTestSuite))
}