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server: update limit using all operators #874

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merged 2 commits into from
Dec 4, 2017
Merged

server: update limit using all operators #874

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668c176
server: update limit using all operators
disksing Dec 4, 2017
c5c117f
address comment.
disksing Dec 4, 2017
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5 changes: 2 additions & 3 deletions server/coordinator.go
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Original file line number Diff line number Diff line change
Expand Up @@ -365,8 +365,8 @@ func (c *coordinator) addOperator(op *schedule.Operator) bool {
}

c.histories.Put(regionID, op)
c.limiter.AddOperator(op)
c.operators[regionID] = op
c.limiter.UpdateCounts(c.operators)

if region := c.cluster.GetRegion(op.RegionID()); region != nil {
if step := op.Check(region); step != nil {
Expand All @@ -390,9 +390,8 @@ func (c *coordinator) removeOperator(op *schedule.Operator) {

func (c *coordinator) removeOperatorLocked(op *schedule.Operator) {
regionID := op.RegionID()
c.limiter.RemoveOperator(op)
delete(c.operators, regionID)

c.limiter.UpdateCounts(c.operators)
c.histories.Put(regionID, op)
operatorCounter.WithLabelValues(op.Desc(), "remove").Inc()
}
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33 changes: 19 additions & 14 deletions server/coordinator_test.go
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Expand Up @@ -554,21 +554,26 @@ func (s *testScheduleLimiterSuite) TestOperatorCount(c *C) {
c.Assert(l.OperatorCount(core.LeaderKind), Equals, uint64(0))
c.Assert(l.OperatorCount(core.RegionKind), Equals, uint64(0))

leaderOP := newTestOperator(1, core.LeaderKind)
l.AddOperator(leaderOP)
operators := make(map[uint64]*schedule.Operator)

operators[1] = newTestOperator(1, core.LeaderKind)
l.UpdateCounts(operators)
c.Assert(l.OperatorCount(core.LeaderKind), Equals, uint64(1)) // 1:leader
operators[2] = newTestOperator(2, core.LeaderKind)
l.UpdateCounts(operators)
c.Assert(l.OperatorCount(core.LeaderKind), Equals, uint64(2)) // 1:leader, 2:leader
delete(operators, 1)
l.UpdateCounts(operators)
c.Assert(l.OperatorCount(core.LeaderKind), Equals, uint64(1)) // 2:leader

operators[1] = newTestOperator(1, core.RegionKind)
l.UpdateCounts(operators)
c.Assert(l.OperatorCount(core.RegionKind), Equals, uint64(1)) // 1:region 2:leader
c.Assert(l.OperatorCount(core.LeaderKind), Equals, uint64(1))
l.AddOperator(leaderOP)
c.Assert(l.OperatorCount(core.LeaderKind), Equals, uint64(2))
l.RemoveOperator(leaderOP)
c.Assert(l.OperatorCount(core.LeaderKind), Equals, uint64(1))

regionOP := newTestOperator(1, core.RegionKind)
l.AddOperator(regionOP)
c.Assert(l.OperatorCount(core.RegionKind), Equals, uint64(1))
l.AddOperator(regionOP)
c.Assert(l.OperatorCount(core.RegionKind), Equals, uint64(2))
l.RemoveOperator(regionOP)
c.Assert(l.OperatorCount(core.RegionKind), Equals, uint64(1))
operators[2] = newTestOperator(2, core.RegionKind)
l.UpdateCounts(operators)
c.Assert(l.OperatorCount(core.RegionKind), Equals, uint64(2)) // 1:region 2:region
c.Assert(l.OperatorCount(core.LeaderKind), Equals, uint64(0))
}

var _ = Suite(&testScheduleControllerSuite{})
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19 changes: 7 additions & 12 deletions server/schedule/scheduler.go
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Expand Up @@ -102,21 +102,16 @@ func NewLimiter() *Limiter {
}
}

// AddOperator increase the count by kind
func (l *Limiter) AddOperator(op *Operator) {
// UpdateCounts updates resouce counts using current pending operators.
func (l *Limiter) UpdateCounts(operators map[uint64]*Operator) {
l.Lock()
defer l.Unlock()
l.counts[op.ResourceKind()]++
}

// RemoveOperator decrease the count by kind
func (l *Limiter) RemoveOperator(op *Operator) {
l.Lock()
defer l.Unlock()
if l.counts[op.ResourceKind()] == 0 {
log.Fatal("the limiter is already 0, no operators need to remove")
for k := range l.counts {
l.counts[k] = 0
}
for _, op := range operators {
l.counts[op.ResourceKind()]++
}
l.counts[op.ResourceKind()]--
}

// OperatorCount get the count by kind
Expand Down